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Prediction of Soil Expansivity with Direct and Indirect Method in Banten Region, Indonesia 用直接法和间接法预测印度尼西亚万丹地区的土壤膨胀率
Civil Engineering Dimension Pub Date : 2024-03-04 DOI: 10.9744/ced.26.1.1-10
Arlyn Aristo Cikmit, R. Sudisman, Aprika Damayanti, Burhani Rizki
{"title":"Prediction of Soil Expansivity with Direct and Indirect Method in Banten Region, Indonesia","authors":"Arlyn Aristo Cikmit, R. Sudisman, Aprika Damayanti, Burhani Rizki","doi":"10.9744/ced.26.1.1-10","DOIUrl":"https://doi.org/10.9744/ced.26.1.1-10","url":null,"abstract":"Expansive soils are widespread in Indonesia, particularly in Banten Province, causing extensive road damages. The study aimed to predict the soil expansivity of soil subgrade along the damaged road segments in Malingping, Cikeusik-Cibaliung, and Labuan districts. Indirect and direct expansivity predictions were employed to determine soil swelling potential. Indirect expansivity prediction was conducted based on various criteria using the Atterberg limit and grain size distribution. Direct expansivity prediction was conducted using an oedometer apparatus to measure the expansion index according to ASTM D-4829. A dynamic cone penetration test was also conducted to measure CBR values. Various indirect methods showed inconclusive results of swelling potentials, low to very high. The direct method provided more conclusive results, Expansivity Index = 100-167 and swelling values = 9%-18%, thus, categorized as expansive clay (high to very high swelling potential). CBR values were 1.49%-5% which is lower than minimum provisioned CBR (6%).","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140266819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laboratory Study on Vallejo and Scovazzo’s Methods in Estimating the Rheology Parameters of Bentonite and Kaolinite Muds 关于 Vallejo 和 Scovazzo 估算膨润土和高岭石泥流变参数方法的实验室研究
Civil Engineering Dimension Pub Date : 2024-03-04 DOI: 10.9744/ced.26.1.51-62
Budijanto Widjaja, Ignatius Tommy Pratama, Ian Hartono, Boby Limowa
{"title":"Laboratory Study on Vallejo and Scovazzo’s Methods in Estimating the Rheology Parameters of Bentonite and Kaolinite Muds","authors":"Budijanto Widjaja, Ignatius Tommy Pratama, Ian Hartono, Boby Limowa","doi":"10.9744/ced.26.1.51-62","DOIUrl":"https://doi.org/10.9744/ced.26.1.51-62","url":null,"abstract":"The mud undrained shear strength and viscosity are the essential parameters in understanding the behavior of mudflow. One of the laboratory test methods to estimate the undrained shear strength and viscosity is Vallejo and Scovazzo’s cylinder strength meter test (CSMT) and flume channel test, respectively. This paper compares the undrained shear strength of kaolin and bentonite muds obtained from the CMST to those obtained using the fall cone and mini vane shear tests and also studies the scale effects in the flume channel test in measuring the mud viscosity at a 20o to 40o slope angles and at various liquidity indexes. The results exhibit that CMST could estimate the undrained strength of mud as low as 0.45 kN/m2 with a liquidity index of up to 5.93. Then, the reduction of the size of the flume channel by half resulted in a mud viscosity of about 2.3 times higher.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"65 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140080101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Free-Vibration and Buckling Analyses of Beams using Kriging-Based Timoshenko Beam Elements with the Discrete Shear Gap Technique 使用基于克里金法的 Timoshenko 梁元素和离散剪切间隙技术对梁进行自由振动和屈曲分析
Civil Engineering Dimension Pub Date : 2024-03-04 DOI: 10.9744/ced.26.1.21-31
Wong Foek Tjong, Nelvin Tanoyo, Tonny C. Gosaria
{"title":"Free-Vibration and Buckling Analyses of Beams using Kriging-Based Timoshenko Beam Elements with the Discrete Shear Gap Technique","authors":"Wong Foek Tjong, Nelvin Tanoyo, Tonny C. Gosaria","doi":"10.9744/ced.26.1.21-31","DOIUrl":"https://doi.org/10.9744/ced.26.1.21-31","url":null,"abstract":"A family of locking-free Kriging-based Timoshenko beam elements with a new implementation of the discrete shear gap technique was recently developed (referred to as K-beam-DSG1 elements). Performance of the K-beam-DSG1 elements has been shown to be very satisfactory in the linear static analysis of beams for a wide variety of thicknesses. This paper presents further development of the K-beam-DSG1 elements to free vibration and bifurcation buckling analyses of prismatic and non-prismatic beams. Consistent Kriging-based mass matrices are used for free vibration analysis and similarly, consistent Kriging-based geometric stiffness matrices are used for buckling analysis. The results show that for most of the cases, the K-beam-DGS1 elements yield remarkably accurate natural frequencies and critical compressive loads using a reasonable number of elements to discretize the beam. For an axially functionally graded fixed-fixed supported beam, however, the elements fail to predict the critical load accurately.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"162 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140265378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stress Analysis of Pin Connections in Steel Box Girder with the Unibridge System using Finite Element Model 使用有限元模型分析钢箱梁中无桥梁系统插销连接的应力分析
Civil Engineering Dimension Pub Date : 2024-03-04 DOI: 10.9744/ced.26.1.91-100
Ayu Sinta Aprilia, A. Awaludin, S. Siswosukarto, Ngudiyono Ngudiyono
{"title":"Stress Analysis of Pin Connections in Steel Box Girder with the Unibridge System using Finite Element Model","authors":"Ayu Sinta Aprilia, A. Awaludin, S. Siswosukarto, Ngudiyono Ngudiyono","doi":"10.9744/ced.26.1.91-100","DOIUrl":"https://doi.org/10.9744/ced.26.1.91-100","url":null,"abstract":"This study analyzes the Unibridge system, a modular steel box girder employing two pins for longitudinal connections, thereby expediting construction compared to traditional girders. A finite element model was developed to analyze the stress on these pins in a single-box girder with five segments and a reinforced concrete floor slab. Various loads were applied following the Indonesian bridge loading standard, SNI 1725:2016. The model considers operational load analysis and assumes full composite behaviour between the top flanges of the girder and the concrete floor slab. The results indicate that the Von-Mises stress on the pins reaches a maximum of 490.95 MPa under combined service loads, consistently remaining below the specified material yield stress limit of 1200 MPa. Consequently, the Demand Capacity Ratio (DCR) is 0.41. As a result, the Unibridge girder connection pins do not experience plastic deformation under the applied loads.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140080236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monitoring and Analysis of Coastline Changes in the Coastal Area of Bali Island, Indonesia 印度尼西亚巴厘岛沿海地区海岸线变化监测与分析
Civil Engineering Dimension Pub Date : 2024-03-04 DOI: 10.9744/ced.26.1.32-50
N. N. Pujianiki, I. M. A. Predana, Komang Gede Putra Airlangga, Gede Rai Putra Arya Simpangan, Takahiro Osawa, I. N. S. Parwata, Muhammad Shazril Idris Bin Ibrahim
{"title":"Monitoring and Analysis of Coastline Changes in the Coastal Area of Bali Island, Indonesia","authors":"N. N. Pujianiki, I. M. A. Predana, Komang Gede Putra Airlangga, Gede Rai Putra Arya Simpangan, Takahiro Osawa, I. N. S. Parwata, Muhammad Shazril Idris Bin Ibrahim","doi":"10.9744/ced.26.1.32-50","DOIUrl":"https://doi.org/10.9744/ced.26.1.32-50","url":null,"abstract":"Erosion and accretion occuring in coastal areas are indications of changes in the coastline’s position. The beach areas in Bali have high economic value as tourist attractions; yet, the condition of the beaches in several places on the island is very concerning. Monitoring shoreline changes can be accomplished using remote sensing technology which is more efficient than the conventional methods. This paper describes the results of changes in the coastline from 2014 to 2021 with remote sensing for all coastal areas of the island of Bali surveyed in the field. This research has successfully detected changes in coastlines throughout the coastal areas of Bali Island by remote sensing method and verified by field survey. The survey results also show that remote sensing method has met the survey from previous studies specifically in Gianyar Regency and Jembrana Regency. Hence, it is applicable for further use in other areas.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140080838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Prefabrication on Job Satisfaction in The Construction Industry 预制对建筑业工作满意度的影响
Civil Engineering Dimension Pub Date : 2024-03-04 DOI: 10.9744/ced.26.1.81-90
Lauren Chandler, R. Sunindijo
{"title":"Influence of Prefabrication on Job Satisfaction in The Construction Industry","authors":"Lauren Chandler, R. Sunindijo","doi":"10.9744/ced.26.1.81-90","DOIUrl":"https://doi.org/10.9744/ced.26.1.81-90","url":null,"abstract":"New construction approaches, such as prefabrication, have been increasingly recognised as a strategy to boost productivity and support the industry’s sustainability and growth. Advancing existing understanding on the benefits of prefabrication to promote its adoption, this research aims to assess job satisfaction and work conditions of construction practitioners involved in prefabrication and assess its impacts on their job satisfaction, represented by job demands, job support, physical work environments, and job perception. Quantitative data were collected from 37 practitioners exposed to prefabrication and 30 practitioners involved in conventional construction. The findings show that prefabrication can lead to higher job satisfaction and better work conditions than conventional construction. Compared with conventional construction, practitioners working in prefabricated projects experienced improved workload distribution, better physical surroundings, and positive job perception. This research, therefore, provides new insights into the benefits of prefabrication and its potential to promote better mental wellbeing and higher productivity.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"83 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140080146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydromechanics – Slope Monitoring in Rainy Season 流体力学。雨季边坡监测
Civil Engineering Dimension Pub Date : 2023-09-13 DOI: 10.9744/ced.25.2.135-142
Agus Setyo Muntohar, Ani Hairani, Muhammad Fikri Permana, Farid Nur Bahti
{"title":"Hydromechanics – Slope Monitoring in Rainy Season","authors":"Agus Setyo Muntohar, Ani Hairani, Muhammad Fikri Permana, Farid Nur Bahti","doi":"10.9744/ced.25.2.135-142","DOIUrl":"https://doi.org/10.9744/ced.25.2.135-142","url":null,"abstract":"Rainfall and soil response are necessary to be monitored to have slope characteristics in detecting landslide occurrence. Even though much research has been carried out worldwide for rainfall monitoring, less research has been conducted in Indonesia for slope monitoring. Therefore, this research was conducted to observe the suction, soil moisture content, and rainfall in a silty sand slope. An automatic rain gauge was set on the ground to measure precipitation. Tensiometer and soil moisture content sensors were installed at depths of 0.5 m; 1 m; and 1.5 m from the slope surface. The monitoring was conducted during the peak rainy season from December 2022 to January 2023. The rainfall amount is about 436.6 mm, and the 6 hours of rainfall events contribute a relatively sizeable rainfall amount (about 31%) to the total. The safety factor of the slope is estimated to decrease by 39%-40% due to the rainfall.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135742199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of ASTM D 1143/D 1143M-07 and Chinese Code JGJ 106-2014 for Pile Load Testing using Finite Element Method 对ASTM D 1143/D 1143M-07和中国规范JGJ 106-2014桩荷载有限元试验的评价
Civil Engineering Dimension Pub Date : 2023-09-13 DOI: 10.9744/ced.25.2.126-134
Aswin Lim, Octavianus Arvin Sukiwan
{"title":"Evaluation of ASTM D 1143/D 1143M-07 and Chinese Code JGJ 106-2014 for Pile Load Testing using Finite Element Method","authors":"Aswin Lim, Octavianus Arvin Sukiwan","doi":"10.9744/ced.25.2.126-134","DOIUrl":"https://doi.org/10.9744/ced.25.2.126-134","url":null,"abstract":"Pile foundation is a structural element utilized to transmit structural load into the soil mass. During design processes, many empirical equations used to estimate axial pile capacity, and a pile load test is conducted to validate the design. In Indonesia, it is common to adopt ASTM D 1143/D 1143M-07 for pile testing. Chinese Code JGJ 106-2014 is another viable option, which has gained popularity recently. This study investigated the load–settlement curves obtained using both codes. The analyses were simulated using the Mohr–Coulomb and the Hardening Soil models. The Hardening Soil model yielded more reasonable load–settlement and load–excess pore water pressure curves than the Mohr–Coulomb model. The reason due to the Mohr–Coulomb model unable to capture the non-linear behavior of soil properly. Furthermore, the results showed that ASTM D 1143/D 1143M-07 and JGJ 106-2014 yielded comparable results. Hence, both methods could be substituted each other.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135742031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Study of Conventional Rotary and Rotary-Percussion Techniques in Grout Hole Drilling from the Perspectives of Time, Cost, and Quality 从时间、成本和质量的角度对传统旋转与旋转冲击灌浆钻孔技术进行比较研究
Civil Engineering Dimension Pub Date : 2023-09-13 DOI: 10.9744/ced.25.2.115-125
Setya Winarno, Prasetyo D.
{"title":"Comparative Study of Conventional Rotary and Rotary-Percussion Techniques in Grout Hole Drilling from the Perspectives of Time, Cost, and Quality","authors":"Setya Winarno, Prasetyo D.","doi":"10.9744/ced.25.2.115-125","DOIUrl":"https://doi.org/10.9744/ced.25.2.115-125","url":null,"abstract":"A dam foundation structure is usually strengthened by grouting, which begins with grout hole drilling. This paper aims to examine a comparison between conventional rotary and rotary-percussion drilling techniques in a drilling case study of the Tugu Dam Project, from the perspective of time, cost, and quality comprehensively. Primary data was obtained from the field investigation and interviews. Secondary data was gathered from available project documents of the PT Wijaya Karya-APTA KSO Project Contractor. The findings have highlighted that the implementation of the rotary-percussion technique for grout hole drilling is better than conventional rotary drilling. There are 16 days of time-saving and 3.84% cost-savings for the rotary-percussion technique, as a result of faster rate of penetration. The quality of grouting work using the rotary-percussion drilling technique tends to be of better quality, although there is a shortcoming due to the limited drilling depth of only 5m particularly.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"23 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135689719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seismic Responses of Concrete Building Subjected to Out-of-phase Ground Motions 非相地震动作用下混凝土建筑物的地震反应
Civil Engineering Dimension Pub Date : 2023-09-13 DOI: 10.9744/ced.25.2.96-105
Yohanes Karyanto, Dario Rosidi, Pamuda Pudjisuryadi
{"title":"Seismic Responses of Concrete Building Subjected to Out-of-phase Ground Motions","authors":"Yohanes Karyanto, Dario Rosidi, Pamuda Pudjisuryadi","doi":"10.9744/ced.25.2.96-105","DOIUrl":"https://doi.org/10.9744/ced.25.2.96-105","url":null,"abstract":"Seismic performance of a building is commonly evaluated by applying same design ground motions at each building foundation. However, local soil conditions beneath a building likely vary, and these variations could result in out-of-phased design ground motions at each of the foundation locations. In this study, building’s responses during earthquakes were analyzed and compared using same and out-of-phase ground motions. The building is 10-story, 90m-wide, reinforced concrete structure supported on isolated footings with tie beams. Dynamic time response analyses were performed using five earthquake records which were scaled to a design response spectrum for a location in Surabaya. Seismic modification factor, R, of 8 was used. The results indicate that the use of out-of-phase ground motions does not have significant impacts on building inter-story drifts; it results, however in significantly higher column base shears and tie beam axial forces compared to those calculated using same ground motions.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135689852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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