bluuebunny/crossref_metadata_2025 huggingface dataset:
PENERAPAN STANDAR AKUNTANSI PEMERINTAHAN DALAM MEWUJUDKAN TRANSPARANSI DAN AKUNTABILITAS KEUANGAN PEMERINTAH KOTA PAREPARE
Authors: Frihatni Andi Ayu , Nirwana Nirwana , Syamsuddin Syamsuddin
Published: December 2022

The preparation of financial statements is based on PP No. 71 of 2010 concerning Government Accounting Standards as a report guide. The research aims to reveal financial transparency and accountability within the framework of government accounting standards. The type of research is qualitative with a case study approach at the Regional Finance Agency of Parepare, South Sulawesi. The research results related to the transparency of the Regional Finance Agency of Parepare found the publication of financial reports was carried out through print and electronic media that can be accessed by everyone. The published financial report includes disclosure of Parepare's financial and the realization of the budget that has been approved in the Regional Revenue and Expenditure Budget. On the other hand, In preparing its budget, the government of Parepare also involves the community through the Development Planning Conference, where the community can express their aspirations. Implementing accountability is also inseparable from performance standards, the success of performance in realizing public services is based on the indicators contained in the work plan which matches the budget and the work carried out by the government.
ANALISIS KINERJA KEUANGAN PERUSAHAAN DENGAN SISTEM DU PONT PADA PT. PLN (PERSERO) UNIT PELAKSANA PELAYANAN PELANGGAN(UP3) PAREPARE
Authors: M Nurwani , Wardhani Wardhani , Arodhiskara Yadi
Published: December 2022

The financial report is the result of the act of making a summary of financial data. The financial statement is the result of the act of making a summary of financial data. Financial statements issued by the company are one of the sources of information regarding the company's financial position, performance, and changes in the company's financial position that are useful to support the right decision-making. The performance of a company, both financial performance and other performance, of course, depends on the company's operations. The aim of this research was to determine the company's financial performance by using the du pont system at PT. PLN (PERSERO) of customer service implementation Unit in Parepare for the last five years (2015-2019). This research was conducted at PT. PLN (PERSERO) of customer service implementation Unit in Parepare for 3 months starting from May to July 2021. This research used a method to analyze company performance with du pont system (ROI with a Du Pont approach). The results of the research proved the financial performance at PT. PLN (Persero) of the customer service implementation Unit in Parepare is in good condition viewed from the NPM, while it is in poor condition viewed from the TATO, then if it is viewed from the ROI, the company's financial performance is in good condition. Therefore, it concludes that the financial performance at PT. PLN (Persero) of the Customer Service Implementation Unit in Parepare is in good condition, although the TATO value shows an unfavorable value. However, the ROI value is still in accordance with the standard because it is balanced with the NPM value which is always increasing.
KONSEPTUALISASI PARIWISATA BERWAWASAN LINGKUNGAN DALAM PERSPEKTIF GREEN ACCOUNTING (STUDI KASUS TAMAN NASIONAL BANTIMURUNG)
Authors: Tenriwaru Tenriwaru , U Nur Syamsiah , Ikhtiari Kirana
Published: December 2022

The tourism sector, especially ecotourism, has a responsibility to the surrounding environment. This study aims to determine the implementation of green accounting to realize ecotourism based on sustainable development goals (SDGs) in Bantimurung Bulusaraung National Park. Research data were obtained from primary data and secondary data. The method used is a qualitative method with an interpretive approach, as well as testing the validity of the data based on triangulation of data sources carried out at Bantimurung Bulusaraung Nature Tourism. The results of the study found that currently Bantimurung Bulusaraung Nature Tourism is being developed into ecotourism. The carrying capacity of the environment is very important in ecotourism. Efforts are being made to preserve the physical and biological components, including applying the concept of environmental carrying capacity in ecotourism areas. The existence of Bantimurung Bulusaraung Nature Tourism increases the income of the community around the destination. Bantimurung Bulusaraung Nature Tourism has not implemented green accounting, so it has not disclosed environmental costs in detail in the notes to the financial statements. The application of green accounting in the ecotourism sector needs to be implemented because the operational activities of tourism objects are responsible for nature and the surrounding environment. Development of natural tourism in Bantimurung Bulusaraung based on SDGs. Whenever you create a building, the main thing you pay attention to is the environment. Management always measures the level of damage in Bantimurung Bulusaraung Nature Tourism every time they carry out construction.
LOYALITAS PELANGGAN PADA LION AIR YANG DIPENGARUHI OLEH EMOTIONAL BRANDING DAN BRAND TRUST
Authors: Febrian Muhammad , Pudjoprastyono Hery
Published: December 2022

Each company must have an effort to develop and increase sales to achieve the target. This study aims to determine the effect of emotional branding and brand trust on customer loyalty to Lion Air Airlines. Customers who have used this airline more than once will be involved in this research. Samples were taken from 65 respondents using the non-probability sampling method as a method for taking samples and purposive sampling techniques for taking samples. This study also uses the PLS (PartialLeastlSquare) technique as a research data analysis technique. In this study, primary data were obtained from questionnaires distributed to the respondents. The results obtained from this study emotional branding and brand trust have a positive effect on customer loyalty to Lion Air airline.
ANALISIS POTENSI KEBANGKRUTAN KOPERASI DI KABUPATEN PANGKEP
Authors: Gaffar Samsu
Published: December 2022

The bankruptcy of a cooperative is a business condition that is not desired by all cooperative stakeholders. The bankruptcy of a cooperative is sometimes not only miserable for its members as owners and customers, but not a few bankruptcies of cooperatives leave a prolonged problem. This study aims to determine the potential for bankruptcy for cooperatives in Pangkep Regency using the Altman Z-Score formula. The research data is sourced from the financial statements of Cooperatives taken by purposive sampling, namely cooperatives that have held the Annual Member Meetings and submitted financial reports for the 2020 Fiscal Year. The results of this study indicate that of the 20 selected samples of cooperatives, 19 cooperativesare classified as healthy with a Zi value range. 3.88-9.59, and there is 1 cooperative classified as prone to bankruptcy with a Zi value of 1.25. It can be concluded that generally Cooperatives in Pangkep Regency are still healthy in 2020. For cooperatives that are categorized as prone to bankruptcy, it is important to immediately increase their working capital so that they do not experience bankruptcy
ANALISIS KUALITAS LAYANAN PADA TOUR DAN TRAVEL DI BANYUWANGI INDONESIA
Authors: Siswanto Yuda Teguh , Cahyono Dwi , Sanosra Abadi
Published: December 2022

Tourism in Banyuwangi is very diverse and attracts the attention of local and foreign tourists, especially tourist attractions that have extraordinary beauty. Tourist attractions that are currently in demand by local and foreign tourists are Ijen crater, Plengkung beach, and the beach. Sukomad. The purpose of this study was to determine directly or indirectly the effect of service quality, and price on interest by referring to customer satisfaction as an intervening variable on tour & travel in Banyuwangi Regency. The number of samples in this study was 170 using the purposive sampling technique. The analysis technique used Structural Equation Model (SEM) using Warp PLS7.0. The results of data analysis show that (1) service quality has a significant effect on interest in referring, (2) price has a significant effect on interest in referring, (3) service quality and price have a significant effect on interest in referring through customer satisfaction as an intervening variable
POTENSI PAJAK AIR TANAH TERHADAP PENINGKATAN PENDAPATAN ASLI DAERAH KABUPATEN MAROS
Authors: Jam'an Andi , Rustan  , Maulana Siti Fatimah
Published: December 2022

This study aims to measure the potential level of groundwater tax on local revenue in Maros district. This type of research is a qualitative descriptive method. The data collection technique used is by looking for records sourced from documents that already exist in the relevant agencies, namely the Regional Revenue and Finance Management Agency of Maros Regency. The data processed by the author is report data which has become documentation of the realization of revenue in Maros Regency for the 2015-2018 period. The focus of research is on the potential and growth rate of the Maros district groundwater tax. The research location is at the Regional Finance and Revenue Management Agency of Maros Regency. The results of this study indicate that extracting the potential for groundwater tax in Maros Regency produces a very good percentage and continues to increase because the amount of realized groundwater tax exceeds the potential amount. The BPKPD of Maros Regency as a tax manager takes full advantage of the potential of the groundwater tax. However, evaluation is always needed in order to maintain the utilization of its potential and also be careful considering that the difference between the total amount of potential and its realization is still very small.
Triple Button Line Implementation Through Corporate Social Responsibilty Program at PT. Semen Tonasa
Authors: Marsuni Nur Sandi , Said Darwis , Aini Indrijawati
Published: December 2022

This study aims to explain and interpret the Corporate Social Responsibility practices of PT Semen Tonasa (Persero) Tbk which are implemented in the "TJSL Pillars" program, one of the pillars of which is SEMEN TONASA. Tonasa Independent Village. This study uses a descriptive qualitative approach. Data retrieval using literature review analysis techniques. The research data was obtained from the official website of PT. Semen Tonasa which publishes every work program carried out by the company. This study found that, firstly, the company carried out a Triple Buttonline program with a Planet core which was realized in the form of being responsible for the environment, Second, the company carried out a Triple Buttonline program with a People core which was realized in the form of providing humanitarian assistance, (Healthy Tonasa and Smart Tonasa, Mandiri Tonasa , Bina Mitra Tonasa) assistance aimed directly at the development of the community who live around the company where the company operates, the three Triple Buttonline Programs at the core of Profit are realized in the form of selling products produced by PT Cement Tonasa.
Pawn (RAHN) In The Perspective Of The Hadith Of The Prophet Muhammad SAW
Authors: Satar Muhammad , Ahmad La Ode Ismail
Published: December 2022

The life advocated and described in Islamic Law is to live by helping each other in various ways. In this regard, loans based on Islamic law provide certainty of benefits for its creditors. The term pawn transaction where in Islam is Rahn. A lien or Ar-Rahn is an agreement for the granting of property as collateral for what will be borrowed or in this case a debt that will be carried out as a guarantor when the creditor is unable to pay off the debt. Islam basically allows a lien transaction where a person obtains goods by paying them first and then agrees between the debtor and the creditor provided that the creditor or borrower must provide guarantees to the debtor. The guarantee or marhun and the value of its use used as a guarantor is a right for the borrower which is not allowed to be used by the guarantor. Instead, there must be permission from the debtor or borrower.
The Effect of Price And Service Quality on Consumer Satisfaction With Purchasing Decisions As Mediating Variables on Alfamart Consumers
Authors: Muinah Fadhilah  , Agus Dwi Cahya  , M. Jurais Ardiansyah
Published: December 2022

This study aims to determine the effect of price and service quality on consumer satisfaction with purchase decisions as a mediating variabel on Alfamart consumers. The sampling technique used the Lemeshow formula. Data were obtained by distributing questionnaires about price, service quality, purchasing decisions, and consumer satisfaction to 130 respondents. The data analysis technique in this study is the Structural Equation Model (SEM) using the AMOS application. The results showed: 1) Price and service quality had a positive and significant effect on consumer satisfaction at Alfamart consumers. 2) Price and Service Quality have a positive and significant effect on purchasing decisions for Alfamart consumers. 3) Price and Service Quality have a positive and significant effect on Alfamart consumer satisfaction through the buyer's decision variabel as an intervening variabel. 4) Purchase decisions affect consumer satisfaction at Alfamart consumers.
Profitability as a Review of Financial Performance (Case Study of PT. Gudang Garam Tbk)
Authors: Windi Atriani  , Anwar Anwar , Nurman Nurman
Published: December 2022

This research is to determine the financial performance of PT. Gudang Garam Tbk is reviewed from the profitability ratio per quarter of the 2019-2021 period. The type of research used in this study is descriptive quantitative. The profitability ratios used in this study are Gross Profit Margin (GPM), Net Profit Margin (NPM), Return on Asset (ROA), Return on Equity (ROE), and Earning Per Share (EPS). The results of the analysis show that the gross profit margin (GPM) financial performance of the company's financial performance is categorized as poor because it is below the average standard of industry size and for NPM, ROA, ROE and EPS is included in the very good category because it is above the  average standard size of the cigarette company industry listed on the Indonesia Stock Exchange.
Reward System For Employee Creativity
Authors: Kurniawaty Kurniawaty , Nurfatwa Andriani Yasin
Published: December 2022

This study aims to test the effect of the reward system  on the creativity of employees at PT. Telkom Access Makassar Maintenance Unit as many as 80 people using the corelation analysis method. The study found that there is a positive and significant influence of the reaward system (intrinsic and extrinsic) on employee creativity. The largest corelation occurs between creativity and Bonus of 0.925 where bonus is one of the ectrinsic rewards, then the second largest corelation occurs between creativity and learning of 0.681, where this learning is one of the intrinsic rewards. Overall, all indifactors of intristic reward variables and ectrinsic rewards have a positive and significant influence on employee creativity. These findings suggest that intrinsic rewards and extrinsic rewards are significantly related  to employee creativity, meaning the likelihood of employees to continue working and be more skilled in the company if employees  are adequately paid, promoted at the right time and get the right learning.
Preparation of Financial Statements Based on SAK EMKM In Small Micro Enterprises And Menengah (MSMEs) Fostered By The Department of Agriculture, Marine Affairs and Parepare City Fishery
Authors: Sri Rezky Handayani  , Arfianty Arfianty , Yadi Arodhiskara
Published: December 2022

MSMEs are economic activities that play an important role in economic growth, maka if the MSME sector is disturbed then the national economy is also disturbed, As for  the  purpose ofthe study is 1).  To find out the process of preparing financial reports for small and medium enterprises based on SAK EMKM on MSMEs "Coastal Tavern Group" Assisted by the Parepare City PKP Office.  This research uses a qualitative type of research with a descriptive approach. The descriptive qualitative research used in this study is to describe and describe the Preparation of Financial Statements for Micro, Small and Medium Enterprises (MSMEs) based on Financial Accounting Standards for Micro, Small and Medium Entities (SAK EMKM) in MSMEs "Coastal Tavern Groups" Assisted by the Parepare City PKP Office.  The results of the study are 1). UMKM Kedai Pesisir Group does not have real or good financial recording reports because both employees and business owners do not understand about recording financial statements based on applicable Financial Accounting Standards, 2). UMKM Kedai Pesisir Group is known that the employees taken are housewives who do not have a job and do not understand about recording, lack of knowledge of the owner of the Coastal Tavern Group  MSME regarding accounting standards in the preparation of financial statements. 3). MSME activities still focus on other activities as well as production and sales only, so the time to make financial reports is still very lacking.
Internal Control Model Of Datok Sulaiman Palopo Modern Islamic Boarding School
Authors: Nurfadilah
Published: December 2022

This study aims to analyze the internal control model of the Modern Islamic Boarding School Datok Sulaiman (PMDS) Palopo and the suitability of the internal control model applied to the COSO (Committee of Sponsoring Organization of the Treadway Commission) concept which consists of five components, namely: 1) Control Environment; 2) Risk Assessment; 3) Control Procedures; 4) Monitoring; 5) Information and Communication. This research uses qualitative research with a case study approach. The data obtained were then analyzed using the Miles-Huberman model, starting from data collection, data reduction, data presentation to conclusions. The results of this study found that the implementation of the internal control system in PMDS was quite good and was in accordance with the COSO concept. It's just that there are still weaknesses in some parts, such as the separation of responsibilities in the finance department and the application of Islamic boarding school accounting. However, PMDS in creating reliable internal control always instills Religious values, namely: Amanah and Barokah
The Central Valley Transportation Challenge
Authors:   California State University, Fresno, Wandeler Christian , Hart Steve ,   California State University, Fresno
Published: December 2022

The Central Valley Transportation Challenge provides underserved minority students, who are primarily from rural areas, with high quality transportation-related educational experiences so that they learn about transportation-related topics and opportunities in transportation careers. The CVTC is a project-based learning program that brings university faculty and students to K–12 classrooms in rural areas. The project operated with three main objectives: (1) support K–12 teachers’ understanding and implementation of the CVTC programs; (2) connect K–12 students with university faculty and students, and transportation professionals through the CVTC program; and (3) develop an online hub with transportation-related lesson plans and sequences. The results of this study are reported as five case studies and a description of the online hub. The case studies illustrate how different pedagogical approaches and uses of technology were implemented and how the project connections between the schools, community members and professionals from transportation-related fields were developed. In addition, to support the sustainability of transportation-related learning across subsequent years, the research team created an online transportation resource repository. This hub was populated with lessons and units developed by pedagogical and content experts. The lessons cover the grades K–12 and range from brief lessons to very engaging and holistic two-week-long lesson sequences. The CVTC has proven to be a highly flexible and adaptive model due to the use of technology and the teachers’ experience and pedagogical expertise. The timing of the program during the COVID-19 pandemic also provided the students that were learning from home with an engaging learning experience and some relief for teachers who were already dealing with a lot of adjustments. In that sense, the program reached traditionally underserved students, but did so in a critical time where these students faced even more obstacles.
Визначення доцільності відпрацювання родовищ на стадії передпроєктних досліджень раціональної стратегії їх освоєння
Authors: Hrinov V. H. , Khorolskyi A. O.
Published: December 2022

Метою роботи є демонстрація наявних ресурсів щодо можливостей попереднього обґрунтування раціонального простору проєктування процесів освоєння родовищ корисних копалин у межах ресурсів розробника і показників родовища з урахуванням виробничої і соціальної інфраструктури на конкретній території. Запропоновано європейський варіант моделювання можливих сценаріїв освоєння родовищ, який може бути реалізований як відображення поетапної зміни стану запасів родовища у період їх експлуатації у вигляді ациклічного графа. Наведені приклади розрахунків в умовах реальних родовищ показують, що потенціал динамічного програмування для оптимізації мережевих моделей достатній для порівняння найкращих економічного та екологічного сценаріїв освоєння родовищ корисних копалин.На основі достовірної геолого-гірничої інформації про стан родовища і сучасних гірничо-збагачувальних технологій, а також за наявності класичних обчислювальних методів, із залученням сучасних інформаційних технологій можна заздалегідь оптимально визначити всі проєктні параметри для забезпечення ефективного природокористування надрами.Реалізація цього потенціалу розвитку фундаментальних досліджень щодо попереднього обґрунтування технологічних параметрів процесів розробки родовищ із урахуванням екологічних аспектів дає змогу геологам виявити найбільш “перспективні” площі для пошуків відповідної корисної копалини, а гірникам на передпроєктній стадії ухвалювати рішення щодо доцільності або черговості відпрацювання аналогічних родовищ.
Analytical Model for Assessment of Deflections of Corrosion-Damaged Reinforced Concrete Beams
Authors: Alekseytsev A.V. , Kurchenko N.S.
Published: December 2022

Alternative approaches to the estimation of corrosion-damaged beams stiffness with regard for localization of corrosion focus and distribution of corrosion damages in concrete on the basis of layered model are considered. The following methods of determining displacements in corrosion-damaged reinforced concrete beams of rectangular cross-section have been considered. In the first one, the stiffness of the beam in determining the deflection is considered constant. In this case, the corrosion-damaged deflections values may be underestimated due to failure to take into account the actual work of reinforced concrete. In the second, the deflection is calculated considering the height of the concrete compression zone that varies along the length of the beam. For these approaches, stiffness reduction in the beam sections in the presence of corrosion damage to the concrete of the compressed zone is modeled. It is shown that in the presence of corrosion damage, the deflections of the structure can significantly increase, which requires mandatory consideration in the life cycle of load-bearing structures of structures when assessing their mechanical safety. The necessity of obligatory registration of corrosion damages in the implementation of algorithms of optimal design of reinforced concrete structures has been revealed.
Correlation Fitted of Loess Microscopic Parameter Statistics with Shear Strength C and φ
Authors: Deng Jin , Li Shutong
Published: December 2022

The microstructure of loess mainly reflects the size distribution, orientation, contact mode and pore distribution of particles. The six original loess (low clayey silt loess) on the same site in Lanzhou is selected by the direct shear test, high power electron microscope and energy spectrum test. To simulated calculation the cohesion (C) and internal friction angle (φ), used by the parameters data, including to the mineral element (Fe/Al/Si, Al/Si, K) ratio, microstructure parameters (Long axis of the particles, long axis’ skewness, kurtosis and orientation degree. The results indicated that the (φ) value was linearly correlated with the mean value of the Angle, and the correlation coefficient of the fitting formula was 0.82. The cohesion C value was linearly correlated with the kurtosis, Skewness, Fe/Si, Al/Si and K/Al of the long axis, and the maximum correlation coefficient after fitting was 0.99. The fitting formula of microcosmic parameters and shear strength can provide a new research method for predicting the shear strength of loess samples.
Towards Multi-Angle Multispectral Optical 3D Porometry and Lens-Less Porometry of Civil Engineering Composites and Geocomposites Including Biodegradable Ones
Authors: Grigorieva Elena , Gradov Oleg , Gradova Margaret , Maklakova Irina
Published: December 2022

In this work we demonstrate the images of multi-angle porometry of civil engineering composites with the static pores. We also demonstrate an example of the application of multi-angle scanning methods where each pore visualization angle corresponds to the certain time moment. The light source can be either incoherent or coherent, which determines the data interpretation principles and data processing algorithms. The light detector can be either optical microscopic (with lenses) or lens-less, that is, either a microscope with an objective or a lens-less one, especially a holographic lens-less microscope. The latter is by definition compatible with multi-angle microporometry. The data on reconstruction of the surface texture of a complex pore using an incoherent light source and the Sobel-Feldman operator (Stanford Artificial Intelligence Laboratory (SAIL)) is presented.
Research on Dredging Method of Slagging Shaft Blockage by Inverted Shaft Construction in Tunnel
Authors: Wei Tong , Duan Xingming , Ran Hua , Suo Xiaoqing , Gao Feng
Published: December 2022

It is necessary to set up slagging well to facilitate slagging and improve construction efficiency during the construction of tunnel shaft inverse well method. Due to the geological condition of the shaft and human factors, the slag chute is easily blocked and the construction period is affected. The conventional dredging method has some problems such as low efficiency, complicated process and long time limit. In this paper, based on Yunnan province Taihe Sumie to Lincang highway tunnel shaft engineering, put forward a way to use two strands in a certain distance between wire rope clamp, two of the same height of the steel wire rope clip through the switch assembly structure of the hinge connection, can be efficient and convenient to dredge the well construction shaft sneak slag well jam problem, as a reference for other similar projects.
Rockburst Monitoring and Warning in Complex Geological Environment: Case Study in Deep Tunnels in Himalaya
Authors: Feng Guangliang , Chen Bingrui , Xiao Yaxun , Ma Qi
Published: December 2022

Geological disaster rockburst occurred frequently in deep and high stress engineering, which affects the safe and efficient construction of the project seriously. A successful rockburst monitoring and warning example is of great significance to rockburst risk control. In this paper, a case study of rockburst monitoring and warning in deep tunnels with complex geological environment in Himalaya was given. The complex geological environment background of the project, implementation of rockburst monitoring, microseismicity monitored, microseismicity in the rockburst development process, rockburst warning method and warning results in the deep tunnels were described. The successful application of rockburst monitoring and warning under the complex geological environment in Himalaya shows that it is feasible for rockburst risk mitigation. The result will be helpful for rockburst monitoring, warning and risk mitigation in similar deep and complex engineering.
Study on Dynamic Property of Tunnels Crossing Rock Fracture Zone
Authors: Liu Yun , Lai Jie , Wang Youcai
Published: December 2022

Fault, crushed zone, and other unfavorable geology may frequently appear in the construction of tunnels, so it is of course necessary to study on the dynamic properties of tunnels crossing rock fracture zone. Taking the tunnel crossing faults as the object, this paper discussed the dynamic constitutive relation satisfied by tunnel structures and researched the loading features and failure characteristics of the different tunnel crossing faults. It shows that: (1) tunnels in areas with high seismic intensity shall have reinforced concrete lining, to improve its ability of resisting tension failure, (2) the stress at the waist on both sides of the tunnel arch is the maximum, and tunnels in areas with high seismic intensity shall have reinforced concrete lining to improve its ability of resisting tension failure. This research is of great reference significance to the construction of tunnels crossing rock fracture zone.
The Influence Study of Statistical Uncertainty on Probabilistic Outlier Detection for Geotechnical Engineering Data
Authors: Zheng Shuo , Liang Jinqiu , Gan Xiaoquan , Zheng Huifeng , Liu Ning
Published: December 2022

Outlier is attached importance in statistics and engineering, because it might result in misleading identification results. However, there is significant uncertainty in the outlier detection, when an outlying observation lies close to the boundary between outliers and regular data or there are sparse observations. The associated uncertainty of outlier mostly results from statistical uncertainty of parameters, such as mean value and standard deviation. However, it is unknown how the statistical uncertainty influences the outlier detection. This paper compares two outlier detection methods for influence study of statistical uncertainty on probabilistic outlier detection. One is based on Mahalanobis distance (MD) using the total probability theorem combining with the half-means method (RHM). The other is RHM method with Bayesian machine learning (BML), which can consider the statistical uncertainties of parameters in MD. The simulated dataset with outliers are used to comparative study. Different dimensional dataset and various numbers of observations and outliers are simulated. Thereinto, outliers are simulated through double-mode triangle distribution. The results show that it is necessary to consider the statistical uncertainty for sparse multivariate observations.
Study on the Seismic Bearing Capacity and Reinforcement Size Effect of RC Columns Reinforced with Steel Strips
Authors: Gu Jufeng , Li Junhua
Published: December 2022

The existing seismic test of the RC column reinforced with steel strips is used as the simulation object, and then its seismic performance is analyzed by ABAQUS. The establishment of the corresponding finite element model is completed by selecting the appropriate constitutive model and interface treatment criteria, and the error between the simulation results and the test results is small, so the modeling method is feasible. Subsequently, with the change of size, the influence of the seismic bearing capacity and reinforcement effect of the steel strip were researched. From the results, it can be seen that: When the size increases, under steel belt reinforcement the improvement of the seismic bearing capacity increases first and then decreases. And based on the finite element analysis, a method for calculating the bearing capacity of RC columns reinforced with steel strips, which takes into account the effect of size effects, is proposed. The average error between calculation and simulation is within 7%, so this method is feasible.
Fire Safety Design Strategy of Special Space at the Top of Super High-Rise Building
Authors: Zheng Yong , Liu Yunna , Ma Lili , Wong Honleung Kelvin
Published: December 2022

A large number of super high-rise buildings have been built in many cities in China, which not only improve the urban land utilization, but also enhance the local reputation of cities. However, super high-rise buildings bring about many firefighting problems in the meantime, such as the accessibility of firefighters, safe egress, occupant staging and evacuation, stack effect in high-rise buildings, the increase of fire load, and the mixing of different types of occupants. Especially, the top portion of the super high-rise building can increase commercial property value for the developer because of its good landscape and attraction of business facilities such as sightseeing, dining, and meeting, but these activities might increase the difficulty of firefighting and rescue. In this paper, taking a super high-rise building close to 500 m as an example, the fire safety challenges of long evacuation time and long evacuation distance in the building were analyzed, and a comprehensive life safety analysis with fire simulation of the topping crown of the building for sightseeing and dining was carried out. The proposed life and fire safety strategy can meet both the fire safety design intend of the China fire codes and the basic requirements of safe egress in fire. The design method in this paper can be used as a credible reference to guide the design of special space at the top of similar super high-rise buildings in the future.
Research on Stochastic Subspace Identification Based on Data Preprocessing Theory Under Ambient Excitation
Authors: Zhang Linlin , Sun Yinglin , Zhu Xinyuan , Yang Zeying , Zhang Lin , Wang Chenghe
Published: December 2022

In order to realize the simple application of stochastic subspace identification in the modal analysis of bridge structures under ambient excitation, the data preprocessing theory is used to process the original vibration signal, and restore the most real data under the actual situation. At the same time, the data-driven stochastic subspace method (Data-SSI) is used to identify the preprocessed data, and the singular value result graph with obvious jump points is obtained, which makes it easy to determine the order of the system clearly. The results show that, after pre-processing the original data, the order of the system can be determined conveniently by using the Data-SSI method, and the results obtained are reliable.
Numerical Analysis of CZB-1 Vertical Pendulum Anomaly at Datong Seismic Station, Shanxi Province
Authors: Li Hongwei , Zhang Shuliang
Published: December 2022

Regarding the accelerated tilt of CZB-1 Vertical Pendulum at Datong Seismic Station, Shanxi Province after October 2020, the field verification was performed on the observation system, observation environment and auxiliary measurement, and the numerical analysis was conducted on the isotropic semi-infinite elastic model based on the load change near the measurement point. The results indicated that the abnormal data were not caused by load changes. Finally, through numerical calculation of the changes in the sensor’s scale value and comprehensive analysis, it was concluded that CZB-1 vertical pendulum anomaly was caused by instability of the sensor probe, and there was no earthquake precursory anomaly.
Simplified Analysis and Stability Evaluation of Excavation Loose Zone of Interbedded Soft and Hard Rock Slope Based on Model Test
Authors: Song Yafen , Chen Li , Zhang Yue , Zhao Qian , Nie Mengze , Qin Chenggong
Published: December 2022

Based on the results of model test and the definition of excavation loose zone, the scope of excavation loose zone of soft and hard rock interbedded slope is determined, and a simplified mechanical model is established. Based on the Mohr-Coulomb criterion, the calculation formula of the stability coefficient is obtained. When the stability coefficient is equal to the critical value 1, the range of the potential failure area of the slope is discussed, and the stability evaluation and instability mode of the slope are studied. The model test and simplified analysis of the loose zone show that the dangerous sliding surface of the slope with interbedded soft and hard rock occurs in the deep soft rock stratum. When the excavation happened to the deep soft stratum, a large range of disturbances will occur, cracks will be generated, and the channel of water supply will be provided to reduce the stability coefficient of the loose zone, leading to the instability of the slope.
Wind-Induced Vibration Coefficient of Landscape Tower with Curved and Twisted Columns and Spiral Beams Based on Wind Tunnel Test Data
Authors: Zhang Chengtao , Zhao Shuang
Published: December 2022

Wind-induced vibration coefficient β is an essential parameter for the structural wind-resistant design. In order to provide accurate design wind loads, β of a landscape tower with curved and twisted columns and spiral beams (short for LT) is studied by wind tunnel test and numerical simulation. The results show that the displacement wind-induced vibration coefficient is greatly affected by wind yaw angle. Moreover, the inertial load wind-induced vibration coefficients increase along the height and increase sharply at the platform position. Due to the influence of nonuniform shape and mass distribution and wind yaw angle, β calculated by the Chinese and American load code does not apply to LT structures. In addition, this article puts forward some suggestions for the shortcoming in the use of code to calculate β of LTs and made some prospects for future research on wind-resistant design of LTs, hoping to provide theoretical guidance and thinking inspiration for future research.
Study on Influencing Factors of Drainage Performance of Open Graded Asphalt Mixture
Authors: Yue Weijie , Sun Lianghao , Wu Shaoming , Fan Zhenyang , Ye Changjian , Li Benliang , Huang Wenyuan
Published: December 2022

In order to explore the factors affecting the drainage performance of open graded asphalt mixture, two kinds of graded open graded asphalt mixture specimens with different compaction times were prepared, and their voids, connected voids and permeability coefficients were tested; At the same time, the fractal parameters of the specimen, the shape of the voids and the range of the voids are calculated. The results show that there is a good correlation between the porosity and connected porosity of open graded asphalt mixture and its permeability coefficient; The void ratio and void roundness of open graded asphalt mixture are inversely affected by gradation and compaction times; There is a good correlation between the void size and shape parameters, void range shape parameters and their permeability coefficient of open graded asphalt mixture, but there is a poor correlation between the void fractal dimension, the passing rate of dividing point and the water permeability.
Influence of Underground Mining on Surface Tailings Pond
Authors: Wang Huiqiong , Xing Wencheng , Duan Qibing
Published: December 2022

In order to investigate the effect of underground mining on the stability of surface tailings ponds, FLAC3D numerical simulation software was used to study the numerical analysis of a lead-zinc mine, and a number of numerically significant monitoring points were set up on the surface of the tailings pond of the mine, which can automatically help capture the velocity and deformation response indicators of the rock body in the area where the measurement points are located due to mining disturbances. The results show that, based on the displacement and velocity clouds after numerical simulation, the displacement deformation generated by the surface and surrounding rocks below the tailings reservoir location during the entire recovery process is almost zero, indicating that the various recovery stages do not affect the tailings reservoir location. At the same time, the change in tailings pond velocity was zero during the entire recovery process, indicating that the recovery process had no impact on the tailings pond, and the tailings pond was in a safe condition throughout the underground recovery phase. The research results further reveal the settlement deformation and velocity law of tailings pond during underground mining, which can provide technical support for the evaluation study of the impact of underground mining on the stability of surface tailings pond.
Investigation on Modification and Aging Characterization of Stabilized Rubber Powder and SBS Composite Modified Asphalt
Authors: Xiao Ping
Published: December 2022

In order to improve the stability and high temperature behavior of rubber asphalt, deep desulfurization stabilized rubber powder and SBS are used to prepare stabilized rubber powder and SBS composite modified asphalt (Hereinafter: composite modified asphalt). In this paper, gel chromatography permeation test, Fourier transform infrared spectroscopy test and dynamic shear rheology test were carried out. Comparative tests were conducted on base asphalt, ordinary rubber asphalt, stabilized rubber powder modified asphalt, SBS modified asphalt and composite modified asphalt. The change mechanism of composite modified asphalt in modification and aging process was studied. The results show that during the preparation of composite modified asphalt, the stabilized rubber powder is fully dissolved and dispersed in the base asphalt after high-speed shearing, and can absorb the light components in the base asphalt, which improves the problem of segregation of rubber asphalt. After adding SBS, SBS and rubber powder will undergo cross-linking reaction to construct a stable polymer network, delaying the degradation of rubber powder and the oxidation of base asphalt in aging process. The anti-aging property of asphalt is improved. During the aging process, both the aging of the base asphalt and the aging of the modifier happen, and both affect the rheological properties of the composite modified asphalt. The comprehensive properties of the composite modified asphalt in each test proves that the composite modified asphalt combines the advantages of stabilized rubber powder modified asphalt and SBS modified asphalt. In addition, it has the advantages of good anti-aging performance, large amount of rubber powder and good economy, and has a promising application prospect.
Deep Application of BIM Visualization Intelligent Technology in Construction
Authors: Qiao Xueliang , Qiao Guangyu , Li Mingke , Wei Suyao , Wang Xiyan , Wang Yuanqing
Published: December 2022

At present, the application of domestic BIM technology is basically concentrated on the integration of three-dimensional visualization of buildings, progress simulation and comprehensive arrangement of pipes. In order to further explore the in-depth application of BIM technology in the fields of traditional construction engineering, restoration of ancient buildings and 3D printing, this paper integrates key information such as 3D scanning, progress simulation, load debugging, business management and control, and refined management through the BIM model to help the construction process perform simulation to provide core data in time such as accurate resource consumption, technical requirements, and other important links in the construction process such as materials, business, schedule, production, etc, and to improve communication and decision-making efficiency, thereby saving time and costs and improving project management quality.
Comparative Study on Ultimate Stress Test and COMSOL Analysis of Steel Beam of Pull-Up Cantilever Scaffold
Authors: Liu Heng , Wang Xiujin , Li Zhengji , Zhong Zhihua
Published: December 2022

Combined with the actual project, the mechanical properties of the cantilever steel pipe scaffold system are tested by model test, including the bending stress, vertical shear stress and vertical deformation displacement of the test steel beam. The stress state of the cantilever steel pipe scaffold system is analyzed, and the mechanical properties of the cantilever steel pipe scaffold system are simulated by COMSOL numerical simulation software. By comparing the results of numerical simulation and ultimate load test, the variation law of stress and vertical deformation displacement of the steel beam with the pull-up cantilever frame in the loading process is obtained, which provides necessary experimental and theoretical basis for monitoring and early warning of the pull-up cantilever scaffold.
Influence Factors of Cracking Sensitivity of Plateau Railway Structural Concrete and Its Preventive Measures
Authors: Yu Chaoyang
Published: December 2022

The cracking risk of railway concrete on plateau was much higher due to the harsh environmental conditions. The characteristics of plateau environment including severe cold environment, canyon wind drying environment, large temperature difference environment and harsh sunlight radiation environment of railway engineering construction were summarized. The main forms and influencing factors of structural concrete cracking in plateau environment were analyzed. Cracking control measures of plateau railway concrete from parameters of concrete mix proportion, construction technology and maintenance measures were proposed.
Analysis on the Construction Technology of Roadbed and Pavement in the Settlement Section of Roads and Bridges
Authors: Cao Wei , Xu Long , Hu Yifan , Lu Yanhui , Quan Zhenzhen
Published: December 2022

With the rapid progress of the road and bridge engineering industry and the rapid development of the transportation industry, the road traffic flow and traffic load have increased sharply. The roadbed and pavement construction technology in the buffer section at the junction of the road and bridge structures are related to the final road product quality. At present, all circles of society pay special attention to the indicators of driving speed, safety and comfort, among which the phenomenon of jumping at the bridge head is the most important factor affecting these indicators [1]. Accordingly, this paper mainly analyzes and discusses the subgrade and pavement construction technology in the settlement section at the junction of the road and the bridge in detail, so as to facilitate the reference of the same industry.
Prediction Method of the Boreability and Performance for Hard Rock TBM Tunnel
Authors: Li Qingwei , Liu Zhiyong , Du Lijie , Zhang Dan , Yang Yalei , Su Shan , Zhao Xiangbo , Qi Zhichong
Published: December 2022

TBM boreability and performance prediction has always been a hot research topic. In this paper, taking one large diameter long tunnel excavated by a gripper hard rock TBM in Northeastern China as research background, based on a large number of boring data on site and mono-factorial regression analysis of the correlations among Field Penetration Index (FPI) and geological parameters, a multi-factorial regression correlation formula of FPI with rock uniaxial compressive strength (UCS) and rock mass integrity coefficient (Kv) was established. Furthermore, the regression correlation formula of TBM penetration (P) with FPI and the formula of thrust (F) with FPI were given. And a classification method of TBM tunnel surrounding rock based on FPI was proposed. Therefore, according to the above formulae, the analysis of boreability, the calculations of TBM penetration, advance rate and the required thrust, and the classification of rock mass can be performed, which provide a theoretical method for the estimation of TBM boreability, performance prediction, specifications design as well as the project planning and duration-cost analysis.