bluuebunny/crossref_metadata_2025_split huggingface dataset:
Accuracy detection of Satellite Technology in the Deformation Monitoring of Slope
Authors: Lang Xiangwei , Li Weiming , Zhang Yuansheng , Li Junxin , Ma Hua 
Published: November 2020

Abstract
Recently, the use of Global Navigation Satellite System (GNSS) in slope deformation monitoring has received great attention in the world. However, the high expenses of the setup, especially different kinds of receivers for various monitored points, and the accuracy has limited the application of GNSS in health monitoring. This study focuses on the application of Satellite Navigation Positioning System (BeiDou Navigation Satellite System) in healthy monitoring in slope. During the study, the control network points were positioned with GNSS measurement technique and height differences were supported with precise levelling measurements. Later on, deformation analysis using the height differences according to provided data from the GNSS and the data from the Total Station were carried out separately. The comparison between GNSS and the Total Station results will be shown in the paper.
Characteristics of water environment along Baojiashan super long tunnel
Authors: Zeng Youquan 
Published: November 2020

Abstract
Based on the synchronous monitoring data of surface runoff, groundwater level and water inflow of Baojiashan super long tunnel, the characteristics of water environment along the tunnel are studied. The results show that: (1) Both surface runoff and groundwater level are significantly affected by rainfall, and the lag is not obvious. (2) The tunnel water inflow is significantly affected by rainfall, and the water is mainly discharged from the North portal. (3) Through the monitoring of the water pressure after the tunnel lining, it shows that the sand settling basin in the later stage of tunnel supplementary construction has played a great role in drainage and decompression, and has played a powerful role in ensuring the safe operation of the tunnel. (4) The change of tunnel drainage flow is closely related to precipitation, and tunnel drainage will not have a great impact on the surrounding environment.
Study on Site Selection and Layout Planning of Public Toilets in Urban Comprehensive Park: Taking Xuanwu Lake Park in Nanjing as an example
Authors: Yin Jie , Feng Nian , Wang Zixuan , Li Qiuyuan 
Published: November 2020

Abstract
Reasonable location and layout of public toilets can ensure the use efficiency of toilets in the park, and improve the use experience of tourists and satisfaction with the park. (1) Based on the background of “tourism toilet revolution”, this paper summarizes the existing methods to solve the problem of facility location, and analyzes the possibility of facility location in urban park. (2) This paper summarizes the single constraint conditions of the existing facilities location, less considering the flow of people and other issues, proposes and establishes a multi-level, multi constraint condition location model. (3) The optimization model proposed in this paper is applied to the location and layout of public toilets in Xuanwu Lake Park, Nanjing. (4) The location model proposed in this paper can meet a variety of constraints at the same time, and provide a more convenient, scientific and economic location method for urban park public toilets and other infrastructure services, landscape buildings, and provide reference for other types of urban park landscape building facilities location.
Traditional Model of Ziquejie Mountain Terraces in China and Scientificities on Irrigation Heritage Perspective
Authors: Li Yunpeng , Deng Jun , Tan Xuming 
Published: November 2020

Abstract
Terraces are an effective and common mode of mountain agriculture. Issues such as water resource storage and drainage, structural stability, impact on the conservation of soil and water, and their adaptive and influencing mechanism to the natural and social environment are important technical engineering issues in the creation and operation of terraces creating. Moreover, these issues are also the key topics in heritage research. Covering a total area of 6,416 hectares, Ziquejie Terraces located in South China is built on hills with an altitude of 460–1,540 m and a surface slope of 25°–40°. Owing to its 1,000-year history and simple but systematic irrigation and drainage system, Ziquejie Terraces has been included in The World List of ICID Heritage Irrigation Structure in 2014 as a unique type of agricultural irrigation. A systematic analysis has been conducted on its creation, influences on the ecological environment and human society, components and characteristics of irrigation and drainage system in the terraces area, and scientific and cultural values as a heritage area. Through such analysis, a traditional pattern of mountain agricultural development has been revealed under the population pressure and mechanism of background adaptation and environment response. The creation of Ziquejie Terraces has specific natural conditions. As an example of overall planning and exploitation of water and land resources, Ziquejie Terraces reflect ancient Chinese philosophy that the simplest projects could afford the largest comprehensive benefits. The successful experiences of Ziquejie Terraces should be used as reference of modern agricultural development in mountainous areas.
Research on Ecological Governance of Smart City in Lhasa under Big Data Environment
Authors: Zhou Rong , Zhang Bingle , Wang Shanshan 
Published: November 2020

Abstract
Smart city is a brand-new urban form with a new generation of information technology as the core and digital information infrastructure as the platform to achieve intelligent management in the fields of population, environment and public services, The construction of smart cities should standardize the operation mechanism, and reflect the technological height and value connotation of the new era in information planning, platform construction, and collaborative management, In the context of big data, smart cities are an effective way to solve the current urban development problems, However, it is difficult to adopt a unified model for the construction of smart cities, Therefore, smart cities need to be classified, Aiming at the current situation and problems of smart cities in Lhasa, the corresponding smart city construction suggestions are proposed, aiming to provide a realistic solution path and method for different types of cities to carry out smart city construction, which has certain reference significance for the future study of smart city classification construction problems
Research on Rotational Speed of Road Mixing Device for Large-Sized Cement Stabilized Crushed Stone
Authors: Zhan Ziquan , Si Guimao , Zhi Jingjing , Wang Gang 
Published: November 2020

Abstract
In order to prevent the reflection crack from happening in cement stabilized macadam base frequently, which lead to the decrease of pavement bearing capacity and working life, a new base structure- large sized cement stabilized crushed stone was raised. The rotational speed of mixing facility for this material was researched in this paper so as to obtain the best base performance, therefore, the construction process was simulated and analyzed in EDEM, which accepted the dispersion coefficient as the mixing quality index. The result shows that the index decreases with the increase of rotational speed between 65r/min and 120r/min and it rises a little and then remains stable when the speed is 120-150r/min. Finally, the 120r/min is regarded as the appropriate speed considering the index and power consumption.
Analysis of mechanical behavior of double arch tunnel by CD method and benching method
Authors: Li Nana , Zhou Yongqiang , Zhao Yanqiang , Li Guiju 
Published: November 2020

Abstract
In order to analyze the influence of different excavation methods on the stability of the tunnel, with reference to a tunnel engineering case, a three-dimensional finite element software was used for numerical simulation to study the stress variation, deformation and plastic zone distribution of surrounding rock during the excavation of the double arch tunnel under two different excavation methods, CD method and benching method. The results show that for the CD method, when the distance between left and right tunnel faces is more than 60m, the deformation, stress and plastic zone of surrounding rock and supporting structure tend to be stable. For the benching method excavation, when the distance between the left and right tunnel faces is more than 50m, the deformation, stress and plastic zone changes of surrounding rock and supporting structure tend to be stable.
Sensitivity Analysis of Flexural Strength Characteristics of Artificial Frozen Soil
Authors: Yu Changyi , Lu Mingyue 
Published: November 2020

Abstract
In subway engineering, artificial frozen soil wall is often used as temporary supporting curtain for underground connecting passage, which bears the effect of upper pressure and lateral earth pressure. In the actual subway tunnel project, artificial frozen soil is generally under both compression and bending. Therefore, to evaluate the soil strength, both compressive strength index and tensile and bending strength index of frozen soil are required. The tensile strength index of frozen soil has a great influence on the design and construction of frozen soil engineering, so it is of great significance to study the tensile strength by testing the flexural strength of frozen soil.
Studies On Out-of-Plane Stability of Arches with Web Openings Accounting for Plate Local Buckling
Authors: Li Yixiao 
Published: November 2020

Abstract
The out-of-plane elastic buckling behavior of I-section circular arches with web openings under radial uniform load, accounting for plate local buckling, is simulated and analyzed by finite element software ABAQUS. The buckling loads at different rise-to-span ratio, the height-to-thickness ratio of the web, hole radius and spacing are calculated. The results show that the out-of-plane buckling load decreases with the increase of hole radius and increases with the increase of hole spacing. By establishing the hole optimization function and adopting the modified dimensionless elastic buckling load, it is found that the structure has the highest efficiency when the hole radius is between 25% and 35% of the web height, and the hole spacing is between 30% and 50% of the web height.
Comparative Analysis of traditional settlement landscape of Leizhou Peninsula under the difference of topography and landform
Authors: Pan Ying , Dang Ji , Shi Ying 
Published: November 2020

Abstract
Leizhou Peninsula is located in Beibu gulf between Leizhou bay, has the good geographical position and pleasant climate environment for the development of appropriate settlement, is one of the important settlement developed gradually in the process of migration settlement of the formation and development is inseparable from the specific geographical conditions, different topography characteristics formed the different human settlements, therefore, traditional settlement forms are closely associated with geomorphology. Base on the geomorphic features of Leizhou peninsula, it can be classified into 5 geomorphological types, combined with the research of Google Earth and ArcGis Software and historical informations, collected the basic data of Leizhou peninsula, the representative of the traditional settlement landscape areas, statistic and analysed the data of settlement elevation settlement, waterfront distance settlement morphological characteristics and settlement landscape pattern characteristics, summarized the landform has significant influenced on traditional settlements, as the Leizhou peninsula, providing the theory basis for the protection and development of traditional settlement heritage.
Analysis of Spatial-Temporal Evolution of Quality of Life in counties in Shandong Province
Authors: Chen Jiaxi , Yu Zifang 
Published: November 2020

Abstract
Existing researches on the quality of life have mostly used socio-economic data for analysis and less research on the use of multi-source data; more research on large cities and less research on small and medium-sized regions; more research on single years and less research on evolution. This article uses Shandong province as an empirical case, using multiple data sources such as remote sensing data, PM2.5 meteorological data, socio-economic data, by selecting key indicators, a county-level quality of life indicator system based on the three dimensions of economy, society, and the environment was constructed, and using a variety of spatial analysis methods to analyze the quality of life in 137 counties (cities) in Shandong Province in the four years from 2000 to 2015. The results are as follows: (1) The overall spatial difference in the quality of life of counties in Shandong Province is quite large, and the polarization is severe. (2) Unbalanced development in all dimensions; unbalanced development of quality of life in municipal and non-municipal districts. (3) Radiation power is not strong in high quality of life areas. lack of core cities in low quality of life areas. According to the status quo, this article proposes reasonable targeted measures and suggestions.
Response analysis of pipeline crossing structure with earthquake
Authors: Teng Zhenchao , Zhao Yuxiang , Liu Yu , Liu Kaiqi , Zhao Jia 
Published: November 2020

Abstract
Pipeline spanning structure has the characteristics of small overall stiffness, poor resistance to deformation, and large slender-length ratio with poor stability. It is a vulnerable part of long distance pipeline engineering under earthquake action, so it is necessary to analyze the response of pipeline spanning structure under earthquake action. In this paper, the structure model of pipeline span is established through ANSYS, and numerical simulation analysis is carried out under seismic action to explore the influence law of pipeline span structure under seismic action of different pipeline span length and different pipeline span form. The results show that the middle span is the most unfavorable position for pipeline crossing. In the same span, with the increase of span length, the natural frequency of pipeline decreases and the period increases. When the span length of pipeline is fixed, the natural frequency of straight pipeline is obviously higher than that of other pipelines, and the seismic performance is the best. It provides a theoretical basis for seismic design of pipeline crossing structure.
Deflection detection of the cement stabilizing layer based on the falling ball test method
Authors: Han Xiaokun , Luo Zhu , Wang Mengjie , Xue Yingqi 
Published: November 2020

Abstract
The detection of the deformation characteristics of geotechnical materials is very important for improving the safety of highways. With the improvement of the detection technology, the falling ball test (FBT) method has been gradually applied to measure mechanical properties of the geomaterials. In order to determine the reliability and the stability of the FBT method, the results of using the FBT method to detect the deflection value of the cement stabilizing layer are compared in this paper with the results of using a falling weight deflectometer (FWD), which is recognized worldwide as an ideal non-destructive detection equipment for the road mechanical performance. It is found that FBT method has high stability and reliability during the test.
Analysis on macro distribution characteristics of traditional settlements along the key line of Meiguan-Wujing ancient road
Authors: Pan Ying , Huang Xiao Yun , Shi Ying 
Published: November 2020

Abstract
This paper makes a comparative study on the distribution characteristics of traditional settlements along the two key ancient roads in Nanxiong basin, including landform, language division, settlement elevation, settlement scale and the relationship between settlements. Through the comparison of various characteristics, this paper reveals the reasons of the differences between the two ancient roads.
The Development of Offshore Artificial Island Construction and Application of Key Hydrodynamic Technologies in China ——Take Haihua Island Project as an Example
Authors: Gao Feng , Zhang Ci-Heng , Jin Ruijia , Chen Songgui 
Published: November 2020

Abstract
In recent years, with the development of China’s coastal waters and coastal urban space expansion needs, the construction of artificial islands on the sea has achieved rapid development. In order to allow it to further promote the development of Marine economy in our country, relieve the contradictions of land and environmental pressure and maintain the Marine ownership plays an important role in our country, research from the review summarizes the development of China offshore artificial island and the technical characteristics of typical artificial island has been built and under construction engineering examples, the paper introduces the construction and offshore artificial island development present situation, and sums up the construction of artificial islands facing the core issues. At the same time, based on the analysis on the status at present domestic offshore artificial island, points out the key technology of the construction of the island, and in the sea flower island project carried out by the series water power project as an example, a detailed discussion on wave flow elements, the seabed sediment, as well as the influence on surrounding channel water exchange, and the three dimensional seepage flow, etc. The research achievements of the project. The research points out that the future construction of artificial islands should return to rationality and science and pay more attention to the integration of natural ecology and environment.
Quantitative Risk Assessment of Dangerous Goods Container Port
Authors: Huang Chen , Bai Yu , Lu Linlin 
Published: November 2020

Abstract
It may lead to extremely serious accidents once the risk of port operations of dangerous goods containers is out of control. To evaluate the risk of operation with complex processes and uncertain factors, this study proposes an evaluation method. This method uses the statistical analysis of the causes of related accident cases and the fishbone diagram method to obtain the risk assessment index set and uses the analytic hierarchy process to assign the evaluation index weight values. On this basis, we conduct case evaluation to verify the effectiveness of the method.
Shu Road Villages Based on “Richthofen’s China Travel Diary” Research on the Landscape Culture of Folk Houses
Authors: Wang Xiaodong , Chen Gang , Wang Xiaomei 
Published: November 2020

Abstract
With the change of dynasties and historical changes, the specific routes of the Shu Road and the cultural and geographical environment also changed. Richthofen’s field trip from Qin to Shu recorded more detailed geographical science knowledge along the way, and provided important historical data for scholars to study the geographical science knowledge of Shu Road in the late Qing Dynasty. The article mainly uses Richthofen’s diary of the Shu Road investigation as the basis of historical data, from the perspective of residential history and geography, to study the geographical landscape culture of the Shu Road villages in the late Qing Dynasty. First, clarify the specific description of the village residential landscape along the Shu Road in the diary; secondly, use the typological method to classify and compare the distribution of the villages along the Shu Road, the types of dwellings, and the specific characteristics; finally, use the phenomenological method to analyze the village dwellings.The main factors for the formation of the landscape, and then the establishment of the cultural core model of the residential landscape of the Shudao village.
Research on the yield function of sand based on thermodynamics
Authors: Zhang Weihua , Zhao Chenggang , Zhang Yinping , Zhao Chunlei , Yanhua Gao 
Published: November 2020

Abstract
It is well known that stress-strain relation of sand is influenced by anisotropic fabric. In this paper, the relationship between macroscopic strain and shear strain and its pore structure is established by combining micromechanical theory and pore structure tensor. It is further confirmed that the stress-induced anisotropy and dilatancy of sand are inevitable. Based on this, with the help of thermodynamic theory, the inclined elliptic yield surface function in dissipative space is built, and there are three important lines in dissipative space for the influence of anisotropic fabric, normal consolidation line, phase transition line and peak line respectively corresponding to the three characteristic lines of real stress space: normal consolidation line, phase transition line and peak line which really reflects the mechanical properties of sand, especially dense sand.
An electrovortex flow around two fully submerged electrodes
Authors: Chudnovsky A , Ivochkin Yu , Jakovics A , Pavlovs S , Teplyakov I , Vinogradov D 
Published: November 2020

Abstract
Electrovortex flow (EVF) of liquid metal in container with submerged electrodes and bifilar current supply relates to problem of melt stirring in electrometallurgical aggregates like welding, electroslag remelting, direct current (DC) electrical arc furnaces (EAF) and others. Maximum values of electromagnetic (EM) force and flow velocity are developing in the region between electrodes. Sophisticated 3D flow patterns are forming around them. In presenting paper, the examples of measured electrical potential and 3D self-magnetic field of supplied DC in comparing with numerical calculation results as well as with quasi-2D model of EM fields are discussed. Several numerically computed 3D EVF patterns are presented for two regimes: i) laminar and ii) turbulent, which is obtained with LES (Large Eddy Simulation) approach. There is good qualitative and quantitative correspondence between experimentally obtained data and numerical computations results as well as with previously published results.
Calculation of the performance of the electromagnetic magnetic fluid separator non-magnetic materials
Authors: Kazakov Yu B , Filippov V A 
Published: November 2020

Abstract
Magnetic fluid separation is a promising area in the field of disposal and recycling of non-magnetic materials. Performance and separation accuracy are important features of any separator. The methods for calculating the productivity offered at this moment have a number of assumptions that can significantly affect the result (constant magnetic permeability of the magnetic fluid, linear change in tension along the height of the gap, etc.), and are applicable only to specific models of separators. The aim of the study is to develop a methodology for calculating the performance of an electromagnetic magnetic fluid separator of non-magnetic materials, taking into account the distribution of the magnetic field in the gap and the influence of the hydrodynamic properties of the magnetic fluid on the movement of particles in the separation zone. The proposed approach allows us to calculate the mass and volumetric capacities of the magnetic fluid separator, the dependences of the capacities for each fraction separately, and the total on various parameters of the separator (for example, on the angle of inclination of the pole pieces). The obtained results can be used to assess the optimality of the adopted parameters when designing a magnetic fluid separator. Also, the results obtained will help optimize the installations already in operation.