This technical note describes a set of Direct Simple Shear (DSS) tests that characterise the evolving geotechnical properties of a soft soil, through a loading history that represents episodic load...
{"title":"Episodic direct simple shear tests to measure changing strength for whole-life geotechnical design","authors":"N. Laham, K. Kwa, D. White, S. Gourvenec","doi":"10.1680/jgele.20.00124","DOIUrl":"https://doi.org/10.1680/jgele.20.00124","url":null,"abstract":"This technical note describes a set of Direct Simple Shear (DSS) tests that characterise the evolving geotechnical properties of a soft soil, through a loading history that represents episodic load...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"43 1","pages":"1-24"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85064079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Micropiles (MP) are widely used for underpinning existing buildings that are being vertically extended. They can be preloaded after installation, whereby partial loads are transferred from existing...
微桩(MP)广泛用于支撑垂直扩展的现有建筑。它们可以在安装后预加载，从而部分负载从现有的…
{"title":"Effect of preloaded micropiles on the performance of foundation underpinning by centrifuge experiments","authors":"C. Wang, J.-T. Han","doi":"10.1680/JGELE.20.00016","DOIUrl":"https://doi.org/10.1680/JGELE.20.00016","url":null,"abstract":"Micropiles (MP) are widely used for underpinning existing buildings that are being vertically extended. They can be preloaded after installation, whereby partial loads are transferred from existing...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"33 1","pages":"1-23"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79079677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The dynamic tensile stress-strain behaviour is desirable in evaluating the stability of geo-structures subjected to dynamic loading. However, the dynamic direct pull test is rather difficult to con...
{"title":"A new method to obtain the dynamic tensile stress-strain curve of rocks","authors":"Xing Li, Ying Xu, K. Xia","doi":"10.1680/jgele.20.00067","DOIUrl":"https://doi.org/10.1680/jgele.20.00067","url":null,"abstract":"The dynamic tensile stress-strain behaviour is desirable in evaluating the stability of geo-structures subjected to dynamic loading. However, the dynamic direct pull test is rather difficult to con...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"140 1","pages":"1-20"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80287085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The damping characteristics of soils are not accurately predicted in most constitutive models. This paper examines the cyclic performance of kinematic hardening models from the a posteriori analysi...
大多数本构模型不能准确地预测土的阻尼特性。本文从后验分析的角度考察了运动硬化模型的循环性能。
{"title":"Investigation of high damping predicted by kinematic hardening soil models during strong earthquake motions","authors":"G. Elia, M. Rouainia, A. D. Lernia, A. F. D'Oria","doi":"10.1680/JGELE.20.00078","DOIUrl":"https://doi.org/10.1680/JGELE.20.00078","url":null,"abstract":"The damping characteristics of soils are not accurately predicted in most constitutive models. This paper examines the cyclic performance of kinematic hardening models from the a posteriori analysi...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"45 1","pages":"1-21"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75113077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solutions of partially hydrolysed polyacrylamides (PHPAs) are regularly used as excavation-support fluids for the construction of bored piles. Their use in grab-excavated diaphragm walls is also d...
{"title":"Effect of sorption on the active concentration of polymer support fluids","authors":"C. Lam, S. Jefferis","doi":"10.1680/jgele.20.00062","DOIUrl":"https://doi.org/10.1680/jgele.20.00062","url":null,"abstract":"Solutions of partially hydrolysed polyacrylamides (PHPAs) are regularly used as excavation-support fluids for the construction of bored piles. Their use in grab-excavated diaphragm walls is also d...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"13 1","pages":"1-24"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72799520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Borela, J. D. Frost, Giulia M. B. Viggiani, F. Anselmucci
Self-motile probes are an emerging technology that will enable multidirectional in situ testing of soils with methodologies currently unavailable. Several of these technologies use bio-inspiration ...
{"title":"Earthworm-inspired robotic locomotion in sand: an experimental study using x-ray tomography","authors":"R. Borela, J. D. Frost, Giulia M. B. Viggiani, F. Anselmucci","doi":"10.1680/jgele.20.00085","DOIUrl":"https://doi.org/10.1680/jgele.20.00085","url":null,"abstract":"Self-motile probes are an emerging technology that will enable multidirectional in situ testing of soils with methodologies currently unavailable. Several of these technologies use bio-inspiration ...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"51 1","pages":"1-22"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87447964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper improves a simplified soil hysteresis model for one-dimensional (1D) fully coupled effective stress analysis of site seismic response that addresses the limitations of existing hyperboli...
{"title":"Simplified effective stress simulation of shear wave propagation in saturated granular soils","authors":"K. Zhao, Q. Wang, Qian Chen, H. Zhuang, G. Chen","doi":"10.1680/jgele.19.00023","DOIUrl":"https://doi.org/10.1680/jgele.19.00023","url":null,"abstract":"This paper improves a simplified soil hysteresis model for one-dimensional (1D) fully coupled effective stress analysis of site seismic response that addresses the limitations of existing hyperboli...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"21 1","pages":"1-22"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84571236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lvyan Liu, Huixin Li, Xuejiao Li, C. Zhou, Guangpu Zhang
To take into consideration the effect of mineral microstructure on crack growth and mechanical properties of heterogeneous rocks containing a single pre-existing flaw under uniaxial compression, th...
在单轴压缩条件下，考虑矿物微观结构对含单缺陷非均质岩石裂纹扩展和力学性能的影响。
{"title":"Simulation on heterogeneous rocks with a flaw using grain-based discrete-element method","authors":"Lvyan Liu, Huixin Li, Xuejiao Li, C. Zhou, Guangpu Zhang","doi":"10.1680/JGELE.20.00083","DOIUrl":"https://doi.org/10.1680/JGELE.20.00083","url":null,"abstract":"To take into consideration the effect of mineral microstructure on crack growth and mechanical properties of heterogeneous rocks containing a single pre-existing flaw under uniaxial compression, th...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"10 1","pages":"1-10"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88628252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laboratory investigation on the influence of solute concentration on the soil water retention curve (SWRC) and volumetric behaviour of expansive soils has received much attention in recent years du...
溶质浓度对膨胀土保水曲线和体积特性影响的室内研究近年来受到广泛关注。
{"title":"Hysteresis of soil water retention and shrinkage characteristics for various molar concentrations","authors":"H. Sadeghi, H. Nasiri","doi":"10.1680/jgele.20.00047","DOIUrl":"https://doi.org/10.1680/jgele.20.00047","url":null,"abstract":"Laboratory investigation on the influence of solute concentration on the soil water retention curve (SWRC) and volumetric behaviour of expansive soils has received much attention in recent years du...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"36 1","pages":"1-27"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78645285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ching S. Chang, Yibing Deng, M. Goudarzy, Mizanur Rahman, T. Wichtmann
{"title":"Discussion on Revisiting the concept of inter-granular void ratio in view of particle packing theory","authors":"Ching S. Chang, Yibing Deng, M. Goudarzy, Mizanur Rahman, T. Wichtmann","doi":"10.1680/jgele.20.00148","DOIUrl":"https://doi.org/10.1680/jgele.20.00148","url":null,"abstract":"","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":"29 3","pages":"1-11"},"PeriodicalIF":2.1,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72482888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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