bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementation of Sustainable Agrotourism for Food Crops Planning in Agricultural Land
Authors: FratikaJulia  , RachmatSaleh  , Khairinrahmat  
Published: May 2023

Abstract
Agricultural land for food crops is a pillar of the economy in an area to increase local revenue, besides that, it is also a source of food crops for the local area. In maintaining agricultural land so that land conversion does not occur, one of the efforts that can be done is through food crops as sustainable agro-tourism. The research location is in the Anja neighborhood, Tawaeli District, Palu City. The purpose of this research is to make the concept and design of agricultural land for food crops to become a sustainable agro-tourism area through architectural design methods. The research method used is the planning and architectural design methodology through a dimensional approach to a comprehensive approach. This is based on the fact that this research interacts thoroughly with many aspects related to the concept and design of agricultural land for food crops as a sustainable agro-tourism area. Based on the analysis of the potential of the area, the results showed that the location of agricultural land for food crops in the Anja neighborhood has a strong attraction as agro-tourism, besides the Anja neighborhood location is very strategic. The facilities and infrastructure owned by agricultural land in the Anja neighborhood can also be maintained in several agro-tourism facilities
Study of Sedimentation Rate at Irrigation Area Baluase Sigi Biromaru Regency as a Watershed Damage Identification
Authors: Andiese V W , Oktavia S R , Amaliah T 
Published: May 2023

Abstract
The high sediment contained in the canals causes changes in the dimensions of the canals. It can reduce the cross-sectional capacity of the canals. The Baluase Irrigation Area is located in Sigi Regency, Central Sulawesi Province, with a functional area of 94 Ha. This study aims to determine the rate of sedimentation in the Baluase Irrigation Secondary canals, which is expressed in the correlation coefficient (R), which is the relationship between Sediment Discharge (Qs) and Water Discharge (Qw). Primary data were collected by direct measurements at the location by measuring canals dimensions, water level, velocity and water samples to test sediment concentration. Sediment samples were taken at 2 distances of flow depth, namely 0.2 h and 0.8 h with 8 cross sections in the longitudinal direction of the canal. From the research results, the average sedimentation rate in the Ramba secondary canal is 3,574 kg/day, while the Baluase secondary canal is 5,675 kg/day. The correlation coefficient (R) value at 0.2 h was 0.6994 and 0.8229 for a depth of 0.8 h. This shows that the relationship between sediment discharge (Qs) and water discharge (Qw) has a positive relationship between 0.6 < R < 1.0
Comparative Study of Sediment Transport using the Caldwell and Cerc Methods at the Donggala Fish Landing Base
Authors: Setiyawan  , Saparudin  , Yunar Alifi , Larasati Gaby 
Published: May 2023

Abstract
Donggala Fish Landing Port (PPI) is a fish port located in Central Sulawesi, precisely in Labuan Bajo Village, Banawa District, Donggala Regency, which is located along the high seas coast. The change in shoreline at the Donggala Fish Landing Base is caused by sediment transport that occurs due to wind and incoming waves. This study aims to determine the sediment characteristics, the amount of longshore sediment transport that occurs per year, and the ratio of the amount of sediment transport for 10 years using the Caldwell method and the CERC method. Analysis of sediment characteristics was carried out by testing carried out in the laboratory with the analyzed parameters, namely: sediment density, sediment grain size distribution and sedimentation velocity. There are many methods that can be used to calculate sediment transport, including the Caldwell method and the CERC method. The results of the sedimentation analysis, it is found that the sediment fraction is sand with various diameters, namely ϕmin = 0.075 mm and ϕmax = 25 mm, sediment density γmin = 2,604 g/cm3 and γmax = 2,678 g/cm3 and sedimentation velocity Wmin = 0.251 m/s and Wmax = 9,946 m/s. From the calculation of sediment transport analysis using the Caldwell method, the maximum amount of sediment transport that occurred in 2009 was 0,956 m3/year and for the CERC method, the maximum amount of sediment transport occurred in 2009 was 0,210 m3/year. The calculation of sediment transport analysis that was reviewed for 10 years, the value obtained by the Caldwell method Qs = 3,353 m3/year, while the CERC method Qs = 0,705 m3/year so that the amount of sediment transport using the Caldwell method is greater than using the CERC method.
Characteristics of Unconfined Aquifer Based on Pumping Test on Wells Made by residents in the Biromaru Area Sigi Regency
Authors: Hamad H , Botjing M U , Supardi N 
Published: May 2023

Abstract
The Biromaru area, located in Sigi Regency, is an agricultural area that was once relies heavily on Gumbasa irrigation in the management of rice fields and farming businesses plant another. Aftermath of the earthquake on September 28, 2018 Gumbasa irrigation canal suffered such severe damage that it could no longer drain the rice fields in the Biromaru area. As a result, most of the people have a livelihood in farming in the fields seeks to carry out independent exploration and exploitation of groundwater. The purpose of this study is to determine the characteristics of unconfined aquifer which includes Transmissivity (T), Storativity (S) and Specific yield (Sy) in the research area. The data collection method used is the pumping test method, long term test and step drawdown test and the analytical method used is the curve-fitting method Neuman, Theis recovery and Hantush Bierschenk for well efficiency performance analysis. Based on the well test and aquifer test as well as lithological correlation results, the Transmissivity value is 315-600 m2/day, Storativity 2.15X10-2 - 6.17X10-3, Specific Yield 1.34X10-1-2.86X10-1, Hydraulic Conductivity 1.19X102-36.4 m/day. and permeability 16,488 m/day. The potential for groundwater discharge in the study area is 226.067 cm3/day. The maximum available discharge is 2.01 X 10-2 m3/s, the value of B = 4.76 X 10-3 and the value of C = 1.8 X 10-5. Aquifer Loss 90.1%, Well Loss 9.9% and Well Efficiency (Ew) 88.3%.
Climate changes affect to The Water avaibility in Sausu Watershed Catchment Area (Case Study)
Authors: Achmad Rachmawaty , Rustiati Nina Bariroh , Sutapa I Wayan 
Published: May 2023

Abstract
Climate change in Indonesia is marked by changes in temperature, rainfall patterns, sea level and climate variability. The climate condition of the Sausu watershed is a natural process that occurs in a rainfall patterns, magnitude and changes in air temperature. This study was conducted to identify the dangers of climate change to the water sector in the Sausu watershed. The analytical method used is Modified Penman evapotranspiration, water balance analysis model F.J. Mock, Makesens, Cumulative Distribution Frequency (CDF) statistical analysis and hazard weighting. This study uses secondary data, namely rainfall sourced from the Sausu rain station in 2002-2021 and climate data (climatology) sourced from BMKG in 2002-2021. Results from this study is that climate change occurs in the Sausu watershed which is characterized by a positive Z value (an increasing trend) and negative (a decreasing trend). A positive Z value (increasing trend) occurs in June, and a negative Z value (declining trend) occurs in December. The danger of decreasing water availability (PKA) occurs in the period 2052-2061 with a low level of danger. Flood hazard occurs in the period 2052-2061 with a high level of danger. Drought hazards occur in the period 2042-2051 and the period 2052-2061 with a low level of danger.
Flexural capacity improvement of the bamboo reinforced concrete beam with perpendicular pivot hooks
Authors: Ummati A M , Michael  , Sarassantika I P E , Fanna G T , Syuhada S , Nasution A P 
Published: May 2023

Abstract
Bamboo as a natural resource is very common used in constructio, such as columns and beams, also can be used as architectural elements. The form of bamboo as a reinforcement is still under identification by many scholars to find an optimum shape and form of bamboo, thus it may be applied as concrete reinforcement since bamboo can improve concrete’s flexural strength. An experimental test conduct in order to identify the role of perpendicular pivot end in bamboo reinforced concrete beams by observing the flexural capacity improvement. Four concrete beams with the dimension of 15 cm x 25 cm x 170 cm were made with 2 cm of square section of the lateral bamboo reinforcement and Ø8 – 100 steel rebar as the shear reinforcement to prohibit the shear failure. The beams were loaded under three-point bending with the point loading in the middle of the span. Based on the experimental result, the beams which equipped by the perpendicular pivot end could improve the load capacity up to 33% higher than the beam without the pivot end. This is proofed that the pivot can improve the flexural capacity of the bamboo reinforced beam and considerable to develop in the bamboo reinforcement beam.
Shear capacities of reinforced concrete interior beam-column joints subjected to cyclic loading
Authors: Maulana H , Amal I , Iqbal W , Thamrin R , Zaidir  , Kurniawan R 
Published: May 2023

Abstract
The primary focus of this research is the experimental investigation of internal RC beam-column joints with cyclic loads. There were two interior RC beam-column joints test specimens made without shear reinforcement. The longitudinal reinforcement ratio of the beams served as the study’s test variable. The specimen test results were compared to the theoretical capacity given in SNI 2847-2019 after that. The test revealed the following: (a) shear and flexural beam capacities; (b) shear and flexural column capacities; and (c) shear capacities of joints. The results showed that there was a significant impact on the shear capacity of the beam-column joint as a result of the variation in the reinforcement bars of the beam. After the longitudinal reinforcement bars of the beam yielded in both instances, the degradation of the beam-column joint occurred. A sharp decline in the load value that the specimen can support serves as evidence.
Cracks evaluation at a pier of a curved box girder bridge during its balanced cantilever construction sequence
Authors: Hidayat N H , Purnomo H 
Published: May 2023

Abstract
In urban area, modern role of bridges is to connect two or more locations. In that area, it is often to construct long span road crossing curved integral bridges consisting of several spans. In this study, the same type of bridge which is located at the intersection of an existing road and an elevated toll road in Jakarta showed cracks at one of the piers during construction of bridge segments. Construction time started from the beginning of 2016 until the end of 2018. Observations were done after the occurrence of cracks by installing strain gauge sensor at the lower part of the pier. Strain from the strain gauge is not only influenced by the construction activities but it is also influenced by the temperature of the surrounding environment. Construction staging analysis using MIDAS Civil software was conducted to evaluate the cracks. Numerical strain evaluation was done by considering the temperature effect taken from the measurement. Both stress which is calculated from the strain obtained by the measurement and construction staging analysis are in good concordance. Using the allowable stress limit for both obtained stress, the actual condition at the pier were verified.
Seismic assessment and retrofitting of the old URM railway station building in Padang City, Indonesia
Authors: Fauzan  , Jauhari Z A , Agista G A , Carol N D , Putra Y S 
Published: May 2023

Abstract
The train is one of the means of land transportation between cities that is in demand by all levels of society. As a mass transportation capable of transporting passengers and goods in large quantities and cheaply, the train can be immediately implemented in Padang City, especially from Padang to the Minangkabau International Airport (BIM) in Pariaman regency. To support the program, re-activating the old train stations that are no longer in use such as Pulau Aer Station, should be done by the directorate general of transportation, Indonesia. This station building is located in Southern part of Padang City, Indonesia. This station building is an old unreinforced masonry (URM) building, which had heavily damaged after the earthquake on September 30th, 2009. Before re-activating this station, a building assessment and retrofitting of this station building are required. The building assessment is carried out both visually and through structural analysis, while the building retrofit is designed using the ferrocement layer method. The analysis result shows that the shear stress on the walls of the retrofitted building is able to withstand the working loads, including the earthquake load.
Spatial modelling of tsunami hazards and their exposure to settlements in Ambon City
Authors: Sugandhi N , Supriatna  , Kusratmoko E , Rakuasa H 
Published: May 2023

Abstract
Ambon City is an area that has the highest disaster risk index in Maluku Province. The direction of development of residential areas in Ambon City tends to be coastal areas which of course will have an impact on the risk of tsunami hazard. This study aims to spatially model the tsunami hazard and its exposure to settlements in Ambon City. The research variables consisted of land height, slope, distance from the river, and distance from the shoreline. This study uses an overlay technique on the variables that have been assessed and analysed using a Geographic Information System approach. The results of the study show that the tsunami hazard in Ambon City is dominated by a low level of tsunami susceptibility which has a wider area than the medium and high tsunami vulnerability classes, this is because 77.32% of the Ambon City area is at an altitude of > 64 m while the tsunami exposure level in settlements in Ambon City are nominated with a high level of vulnerability with an area of 2,835.33 ha.
Study of Ground Motion Models Selection to the Concrete Frame Building Damage Probability using the 2006 Yogyakarta Earthquake Scenario
Authors: Muntafi Y , Nojima N , Ikramullah I 
Published: May 2023

Abstract
Damage probability assessment using the ground motion prediction equation (GMPE) models is paramount in seismic risk analysis. Several GMPE models have been proposed and developed worldwide. However, it has its parameters and gives different spectral acceleration results. The study aimed to investigate the impact of GMPE model selection on the estimation of building damage probability due to the scenario of Yogyakarta earthquake. In the beginning, we modeled the 3D-concrete moment frame building, followed by conducting pushover analysis to determine the building responses and calculating the building damage probability based on HAZUS method to generate fragility curve and damage probability matrix. Five GMPE models were employed in this study. The results revealed that for the modeled structure, the GMPE of Ambraseys et al. (1996) gave the highest value of the peak building response compared to the GMPE of Sadigh et al. (1997), Boore et al. (1997), Spudich et al. (1999) and Idriss (2002). The probability of moderate, extensive, and complete damage levels was also dominated by the GMPE of Ambraseys et al. (1996), which indicated that in this case, the use of this GMPE would produce the most severe damage probability value.
Tsunami current and its impact on inundation depth in the coastal areas of West Sumatra – Indonesia
Authors: Daoed D , Syukur M , Ariya P S 
Published: May 2023

Abstract
The influence of cities that are in coastal areas and prone to earthquakes is very likely to be hit by tsunami waves or currents. The city of Padang is one of the cities in Indonesia which is located along the Indonesian sea coast and is also an earthquake-prone area so it has the opportunity to experience tsunami waves. Efforts to inhibit wave propagation are mostly carried out by using walls on the beach or multi-story buildings. However, in small towns or villages you rarely find multi-story buildings, there is only drainage parallel to the beach. Based on this, an experiment was carried out by imitating the existing conditions and changing the width of the drainage for the Purus and Ulak Karang Padang areas. The purpose of this study was to determine the effect of changing the drainage geometry on the tsunami current. The results showed that the drainage channel was wider, the greater the decrease in height and area of inundation or vice versa. It is recommended for stakeholders make adequate and safe drainage against tsunami flows.
The influence of various parameters of physical and mechanical properties on susceptibility to liquefaction of sandy soils
Authors: Yuliet R , Silvy A L , Hakam A , Fauzan  , Mera M , Syuhada S 
Published: May 2023

Abstract
On September 30, 2009, there was liquefaction in the sandy soils around the coast of Padang city, which was triggered by an earthquake measuring 7.6 SR. Liquefaction causes land subsidence and lateral displacement of many buildings in Padang. The level of liquefaction vulnerability of Padang city is in the moderate zone based on qualitative methods; on the contrary, quantitative methods obtained a very high level of vulnerability to liquefaction. Based on this, quantitative methods by conducting geotechnical investigations in the field and laboratory tests are needed to determine the liquefaction potential. This study aims to determine the potential for liquefaction using quantitative methods based on testing the physical properties and mechanical properties of sandy soils in the laboratory. The standard for laboratory testing is the Indonesian National Standard (SNI), and soil sampling was carried out in seventeen areas. The results of the physical and mechanical properties, i.e., relative density (Dr), the particle size of the soil, and internal friction angle, showed that the sandy soils along the coast in Padang are poorly graded sand (SP). The sandy soils are dominated by fine sand with a very loose consistency, which has potential liquefaction.
Analysis of clay improvement as subgrade using Palm Oil Fuel Ash (Pofa)
Authors: Andriani  , Putra H G , Yuliet R , Maulana R , Marel S P 
Published: May 2023

Abstract
Road construction on clay soils often causes problems, because clay have a low bearing capacity and high swelling shrinkage values. Damage to roads on soft clay cannot be avoided; therefore, soil improvement is necessary. Soil stabilization is one of the efforts to improve soil properties, and the aim is to increase the bearing capacity of the soil. So far, the stabilizing materials commonly used for soil improvement are cement and lime. In study, oil shell waste in the form of palm oil fuel ash (pofa) will be used as a stabilizing agent. Pofa is one of the industrial wastes that contain a high percentage of silica (Si). The high silica (Si) content is beneficial for reducing the shrinkage properties of clay soils. Pofa ash content used in the study was 4%, 8%, 12%, 16%, and 20% of the total weight soil. The curing time of the sample was seven days with unsoaked and soaked (four days) conditions. The results of this study indicate that mixing pofa ash can increase CBR value and decrease the swelling value of clay.
Rock slope stability assessment using kinematic analysis at Gunung Batu, Lembang, West Java, Indonesia
Authors: Martireni A P , Sugianti K , Hermawan K , Tohari A , Wibawa S , Soebeowo E 
Published: May 2023

Abstract
Discontinuity plane in the Gunung Batu area associated with the geological structure of the activity of the Lembang fault has the potential to induce rock slope failure hazard to the surrounding residential areas. A series of slope stability analyses of the Gunung Batu was carried out using rock mass rating and kinematics analysis to assess the rock slope stability in the Gunung Batu and determine the rock failure type. According to the results of the rock mass rating, the outcrop of Gunung Batu is classified as a good rock. Meanwhile, kinematic analysis from three joint sets shows that the rock failure type is characterized by wedge and toppling failures. However, the analysis results of the Slope Mass Rating (SMR) indicate that the rock slope stability in Gunung Batu is considered in partially stable to stable condition.
Spatial and Temporal Analysis Prediction of Landslide Susceptibility Using Rainfall Infiltration and Grid-based Slope Stability Methods in West Bandung area of West Java-Indonesia
Authors: Hermawan Koko , Sugianti Khori , Martireni Antonina , Satrio Nugroho Aji , Yunarto  
Published: May 2023

Abstract
West Bandung, West Java, is an area with a high level of landslide susceptibility. Landslides in West Bandung occurred 142 times during rainfall in the last ten years. This paper presents the results of landside susceptibility modeling in the West Bandung area of West Java Province, Indonesia, considering the spatial characteristics of the rainfall data, slope and soil properties using the TRIGRS model. This research is based on conditions in the field in the form of landslide locations, soil engineering properties, soil thickness, Digital Elevation Model, and rainfall data. The effect of one-day antecedent rainfall intensity was considered in this study, i.e., 12 hours of antecedent rainfall. The results of the TRIGRS modelling showed that the intensity of rainfall antecedent of rainfall influenced the slope stability in the study area. The TRIGRS model results indicate that the predicted landslide susceptibility distribution agrees with the historical landslide events.
Effect of wet – dry cycles on CBR value and grain size distribution particle on compacted residual tuff soil
Authors: Syuhada S , Muzakky A H , Kurniawan R , Utami E T , Hayati J 
Published: May 2023

Abstract
Uncertain climate change is a natural phenomenon that is common nowadays. Soil is the result of weathering of rocks and climate change is one of the causes of this weathering. Residual soil is soil formed on top of the original rock layer. In addition to the parent rock, climate change also affects the residual soil, both in terms of grain size and shear strength. This climate change modeling was carried out by giving wet-dry treatment on residual tuff soil samples at the Institut Teknologi Sumatera (ITERA) which were compacted with a wet-dry cycle of 2 cycles, 4 cycles, 6 cycles, 8 cycles, and 10 cycles. From this treatment, it will be seen the change in gradation and the magnitude of the CBR value. The change in grain gradation is obtained which is calculated based on the concept of grain breakage, namely the Br value in each cycle of 15.89%; 21.51%; 25.35%; 32.01%; 36.28%. For the CBR values obtained for the initial conditions and each cycle are 50.74%, 40.34%; 29.763%; 25.16%; 22.825%; 20.580%. These results indicate that the longer the cycle occurs in the soil, the greater the change in grain gradation and the CBR value of the residual tuff soil. For this reason, the wet-dry process needs to be considered for the use of residual tuff soil as the subgrade of the road pavement.