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International Journal of Geotechnical Engineering最新文献

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Suitability charts to select stabilizer for excavated soils and rocks (ESR) 选择开挖土壤和岩石稳定剂的适用性图表（ESR）
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-07 DOI: 10.1080/19386362.2023.2182500
Yi Lu, E. Leong, Liang Zeng, Changhao Xu, Bingcheng Li
{"title":"Suitability charts to select stabilizer for excavated soils and rocks (ESR)","authors":"Yi Lu, E. Leong, Liang Zeng, Changhao Xu, Bingcheng Li","doi":"10.1080/19386362.2023.2182500","DOIUrl":"https://doi.org/10.1080/19386362.2023.2182500","url":null,"abstract":"ABSTRACT The aim of the study is to develop charts to select the most suitable stabilizer (i.e. cement, lime and fly ash) for excavated soils and rocks (ESR) to improve their engineering behaviour. The suitability charts were developed based on considerations of soil gradation and plasticity. Data from the literature where cement, lime and fly ash (FA) were used to improve soil strength were collated. Based on the normalized unconfined compressive strength (UCS) of the soils, zones of various degree of soil strength improvement for cement, lime and FA were identified. The suitability charts were validated using data from the literature not used in the development of the suitability charts. New data on kaolin and three ESRs from Guangzhou improved with cement, lime and FA. The suitability charts correctly indicated that lime is most suitable for kaolin while cement is most suitable for red soil and silty sand.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"108 - 123"},"PeriodicalIF":1.9,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48718290","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: 2
Fundamentals of Ground Improvement Engineering 地基改善工程基础
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-07 DOI: 10.1080/19386362.2023.2179772
S. Depaoli, Yang Liu
{"title":"Fundamentals of Ground Improvement Engineering","authors":"S. Depaoli, Yang Liu","doi":"10.1080/19386362.2023.2179772","DOIUrl":"https://doi.org/10.1080/19386362.2023.2179772","url":null,"abstract":"","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"219 - 220"},"PeriodicalIF":1.9,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41584915","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
Suction and reloading effects on pile behaviour in tropical soil 热带土中桩的吸力和再荷载效应
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-07 DOI: 10.1080/19386362.2023.2208919
Heitor Cardoso Bernardes, Aleones José da Cruz Junior, Maurício Martines Sales, Renato Pinto da Cunha, Juan Félix Rodríguez Rebolledo
{"title":"Suction and reloading effects on pile behaviour in tropical soil","authors":"Heitor Cardoso Bernardes, Aleones José da Cruz Junior, Maurício Martines Sales, Renato Pinto da Cunha, Juan Félix Rodríguez Rebolledo","doi":"10.1080/19386362.2023.2208919","DOIUrl":"https://doi.org/10.1080/19386362.2023.2208919","url":null,"abstract":"ABSTRACT The design of foundations for buildings subjected to unload–reload cycles generate the need to understand the reloading effects in piles. Commonly, such foundations are found in unsaturated soils, which also requires considering the effects of matric suction. This paper investigates the effects of soil suction and reloading on the behaviour of piles from an experimental and numerical approach. A bored pile built on a tropical soil profile was subjected to a sequence of load tests, performed at different climate seasons. An average 85% decrease in soil suction was measured from the pile load test in the dry season to the test in the rainy one, which contributed to a reduction in the pile’s ultimate axial load capacity and stiffness of around 50%. The unload–reload cycles caused an increase on the pile’s ultimate load capacity between 7% and 9% and on the pile stiffness between 13% and 24%.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"177 - 189"},"PeriodicalIF":1.9,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42566416","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
Desiccation cracks prediction using a 3D finite elements model 基于三维有限元模型的干燥裂纹预测
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-07 DOI: 10.1080/19386362.2023.2202595
Trabelsi Houcem, Y. Alassaf, M. Jamei, S. Olivella
{"title":"Desiccation cracks prediction using a 3D finite elements model","authors":"Trabelsi Houcem, Y. Alassaf, M. Jamei, S. Olivella","doi":"10.1080/19386362.2023.2202595","DOIUrl":"https://doi.org/10.1080/19386362.2023.2202595","url":null,"abstract":"ABSTRACT This paper focuses on the cracking of fine soil grains by desiccation using a 3D hydro-mechanical model. It further seeks to study the cracks growth across the depth during the desiccation time. Numerical results provide data for assessing the depth propagation of the cracks, field suction in 3D, the tensile stresses caused by the cracks. Cross sections have been considered to determine the cracks’ depth. Furthermore, water content and suction versus time have been obtained. It is still challenging to experimentally obtain a sample’s suction, water content, and distribution of stresses. Although there is a gap between numerical and experimental results concerning the appearance time of the first crack, the interpretation given in the text demonstrates that it is a wrong gap. Consequently, it can be stated that the numerical results agree with the experimental results, in terms of cracks intensity factor (CIF) and the evaporation rate as functions of desiccation time.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"162 - 176"},"PeriodicalIF":1.9,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43230957","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: 1
Influence of vertical load on lateral response of pile in clayey deposit considering Winkler model using FEM 考虑Winkler模型的粘土地基中竖向荷载对桩侧响应的影响
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-07 DOI: 10.1080/19386362.2023.2191237
Tanumaya Mitra, K. Chattopadhyay, Ambarish Ghosh
{"title":"Influence of vertical load on lateral response of pile in clayey deposit considering Winkler model using FEM","authors":"Tanumaya Mitra, K. Chattopadhyay, Ambarish Ghosh","doi":"10.1080/19386362.2023.2191237","DOIUrl":"https://doi.org/10.1080/19386362.2023.2191237","url":null,"abstract":"ABSTRACT This paper presents a new coupled approach to incorporate the effect of vertical load on lateral response of pile in clay, by considering both the lateral and vertical strain of the soil-pile system. Experimental and numerical studies on pile subjected to combined loading carried out by different researchers showed that coupling behaviour cannot be modelled using Beams on Winkler foundation or subgrade reaction approach and use of continuum modelling is essential. However, in this present study an is made to develop a method using FEM by utilizing both the lateral and vertical strain of soil-pile system. The proposed coupled method is capable of simulating the influence of vertical load on lateral response of pile in clayey deposit much more realistically compared to uncoupled method. However, this coupling effect is more prominent for pile subjected to a vertical load equal to ultimate pile capacity (Vu), compared to pile under a load equal to allowable pile capacity (Vall).","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"190 - 208"},"PeriodicalIF":1.9,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41738292","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
Obituary Braja M. Das (1941-2023) 布拉贾·M·达斯讣告（1941-2023）
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-07 DOI: 10.1080/19386362.2023.2213011
{"title":"Obituary Braja M. Das (1941-2023)","authors":"","doi":"10.1080/19386362.2023.2213011","DOIUrl":"https://doi.org/10.1080/19386362.2023.2213011","url":null,"abstract":"","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"107 - 107"},"PeriodicalIF":1.9,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43854281","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
Enhancing mechanical characteristics of a collapsible sandy Sabkha soil using an eco-friendly admixture: An experimental and numerical study 利用生态友好型外加剂增强可折叠沙质Sabkha土的力学特性:实验和数值研究
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-07 DOI: 10.1080/19386362.2023.2182967
M. Elsawy, Abderrahim Lakhouit
{"title":"Enhancing mechanical characteristics of a collapsible sandy Sabkha soil using an eco-friendly admixture: An experimental and numerical study","authors":"M. Elsawy, Abderrahim Lakhouit","doi":"10.1080/19386362.2023.2182967","DOIUrl":"https://doi.org/10.1080/19386362.2023.2182967","url":null,"abstract":"ABSTRACT The aim of the present research is to improve the mechanical characteristics of a continental collapsible Sabkha soil using eco-friendly lime content under structures. The experimental portion is performed on both treated and untreated saturated collapsible soil, focusing on compaction characteristics, collapse potential, shear strength, and California bearing ratio (CBR). Full-scale three-dimensional numerical models are built for a footing that rests on untreated and treated collapsible soil with different lime contents under immersion conditions. The results indicate that increasing lime in collapsible soil causes incremental improvements in the maximum dry density. Furthermore, lime stabilization effectively reduces the collapse potential of the studied soil, while increasing lime content in the soil leads to a greater reduction in the collapse potential, with a 20% lime content completely resolving the collapse problem. Increases in lime content also contribute to important increments in shear strength parameters and CBR values. Moreover, the shear strength of the stabilized soil with 20% lime increases to more than six times that of the untreated soil. The improvement in the mechanical properties of the stabilized soil is found to persist over time. Numerical analyses results also show that lime stabilization significantly increases the allowable bearing capacity of the soil. Consequently, the stabilized soil with 20% lime content increases the allowable bearing capacity to more than seven times that of the untreated soil, effectively reducing settlement of the footing.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"124 - 139"},"PeriodicalIF":1.9,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41794631","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: 1
Establishing zone of influence (ZOI) for cylindrical heat source in dry sand 在干砂中建立圆柱形热源的影响区（ZOI）
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-02-02 DOI: 10.1080/19386362.2023.2172260
M. Azhar, Somenath Mondal, D. Singh, Akhileshwar Singh
{"title":"Establishing zone of influence (ZOI) for cylindrical heat source in dry sand","authors":"M. Azhar, Somenath Mondal, D. Singh, Akhileshwar Singh","doi":"10.1080/19386362.2023.2172260","DOIUrl":"https://doi.org/10.1080/19386362.2023.2172260","url":null,"abstract":"ABSTRACT Safe, proper design and installation of several thermo-active structures necessitate establishing zone of extent of heat migration in soil mass. This zone is termed as ‘zone of influence’, ZOI, and its determination is imperative to avoid unwanted situations, which could be threat to the surrounding structures. This is where in-situ monitoring of the temperatures in the near- and far-field would be quite prudent, however would be an expensive exercise. Therefore, COMSOL Multiphysics® was employed to determine the ZOI. Nevertheless, the relative efficiency of these tools in yielding the ZOI remains a big question, and requires results from experiments to validate. Hence, an attempt was made in this study to establish the ZOI of cylindrical heat source, which replicates geothermal energy pile in dry sands, by adopting novel experimental methodology. ZOI has been established for cylindrical heat source experimentally and numerically. Furthermore, unique mathematical equation has been developed by using regression analysis.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"151 - 161"},"PeriodicalIF":1.9,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45032829","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
Physical modeling of desiccated slopes in fine soil using a geotechnical centrifuge 用土工离心机对细土中干燥斜坡进行物理模拟
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-01-02 DOI: 10.1080/19386362.2023.2165893
Daniel Alejandro Carvajal-Cardenas, C. Lozada
{"title":"Physical modeling of desiccated slopes in fine soil using a geotechnical centrifuge","authors":"Daniel Alejandro Carvajal-Cardenas, C. Lozada","doi":"10.1080/19386362.2023.2165893","DOIUrl":"https://doi.org/10.1080/19386362.2023.2165893","url":null,"abstract":"ABSTRACT Desiccation in soils leads to a loss of water content, increasing soil suction, which in turn, leads to higher shear strength. Drying paths in soils are produced by water uptake by plants or by evaporation due to extreme seasonal changes. This study presents the results of geotechnical centrifuge tests on the effect of water content on deformations and on the failure mechanism of a slope in fine soil. The failure mechanism and the resulting displacements obtained in the experiments were determined using image analysis using the GeoPIV_RG software. The results show a significant effect of soil suction on the failure mechanism. For saturated soils, the slope suffers an abrupt failure mechanism due to shear strength, while for partially saturated soils, this mechanism is modified and the magnitude of deformations diminishes as soil suction increases. Meanwhile, the size of the traction crack decreases as suction levels increase due to the increase in tensile strength produced by the loss of water content.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"2 - 9"},"PeriodicalIF":1.9,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43661115","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: 1
Editorial: Research, writing and publishing 社论:研究、写作和出版
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2023-01-02 DOI: 10.1080/19386362.2023.2158637
E. Leong
{"title":"Editorial: Research, writing and publishing","authors":"E. Leong","doi":"10.1080/19386362.2023.2158637","DOIUrl":"https://doi.org/10.1080/19386362.2023.2158637","url":null,"abstract":"","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"1 - 1"},"PeriodicalIF":1.9,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44899126","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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