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Stress wave velocity in soils: Apparent grain-size effect and optimum input frequencies 土壤应力波速:明显粒度效应和最佳输入频率
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.18.00219
T. Dutta, M. Otsubo, R. Kuwano, C. O’Sullivan
{"title":"Stress wave velocity in soils: Apparent grain-size effect and optimum input frequencies","authors":"T. Dutta, M. Otsubo, R. Kuwano, C. O’Sullivan","doi":"10.1680/JGELE.18.00219","DOIUrl":"https://doi.org/10.1680/JGELE.18.00219","url":null,"abstract":"There is a lack of consensus in the literature on the influence of the median particle size on stress wave velocity in cohesionless soils. For assemblies of spherical particles with Hertzian contac...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88620849","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}
引用次数: 18
Effects of micro- to meso-features on the permeability of fissured clays 细观特征对裂隙粘土渗透性的影响
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/jgele.18.00237
C. Vitone, S. Guglielmi, G. Pedone, F. Cotecchia
{"title":"Effects of micro- to meso-features on the permeability of fissured clays","authors":"C. Vitone, S. Guglielmi, G. Pedone, F. Cotecchia","doi":"10.1680/jgele.18.00237","DOIUrl":"https://doi.org/10.1680/jgele.18.00237","url":null,"abstract":"This paper discusses the relation of the coefficient of saturated permeability in a given direction, ki, with the void ratio, e, for fissured and unfissured clays, wherein ki characterises the hydr...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88681798","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}
引用次数: 5
Exploring the effect of 3D grain shape on the packing and mechanical behaviour of sands 探讨三维颗粒形状对砂土充填和力学行为的影响
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.18.00227
Hao Yang, Bo Zhou, Jianfeng Wang
{"title":"Exploring the effect of 3D grain shape on the packing and mechanical behaviour of sands","authors":"Hao Yang, Bo Zhou, Jianfeng Wang","doi":"10.1680/JGELE.18.00227","DOIUrl":"https://doi.org/10.1680/JGELE.18.00227","url":null,"abstract":"This paper investigated the dependence of three-dimensional grain shape characteristics on particle size by applying X-ray micro-computerized tomography. A series of packing and triaxial shearing e...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90083888","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}
引用次数: 4
Effects of granular collisions on the rapid coarse-grained materials flow 颗粒碰撞对粗粒物料快速流动的影响
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.18.00223
F. Federico, C. Cesali
{"title":"Effects of granular collisions on the rapid coarse-grained materials flow","authors":"F. Federico, C. Cesali","doi":"10.1680/JGELE.18.00223","DOIUrl":"https://doi.org/10.1680/JGELE.18.00223","url":null,"abstract":"A continuum model to predict the mobility of landslides is developed according to the formulation by Savage and Hutter as well as the main ‘microscopic aspects’ affecting the rapid sliding of granu...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83489544","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}
引用次数: 5
Grain morphology and strength dilatancy of sands 砂粒形态与强度剪胀性
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.18.00199
G. Guida, D. Sebastiani, F. Casini, S. Miliziano
{"title":"Grain morphology and strength dilatancy of sands","authors":"G. Guida, D. Sebastiani, F. Casini, S. Miliziano","doi":"10.1680/JGELE.18.00199","DOIUrl":"https://doi.org/10.1680/JGELE.18.00199","url":null,"abstract":"The presented experimental study, from micro to macro scale, assesses the effects of grain shape on the strength-dilatancy behaviour and physical properties of seven natural sands of different orig...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76146458","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}
引用次数: 16
Wetting test and X-ray computed tomography of volcanic unsaturated sands 火山非饱和砂的润湿试验和x射线计算机断层扫描
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.18.00200
M. Moscariello, S. Cuomo
{"title":"Wetting test and X-ray computed tomography of volcanic unsaturated sands","authors":"M. Moscariello, S. Cuomo","doi":"10.1680/JGELE.18.00200","DOIUrl":"https://doi.org/10.1680/JGELE.18.00200","url":null,"abstract":"Wetting can induce the so-called ‘capillary collapse’ in loose unsaturated soils. Collapse mechanisms have been studied at macro-scale for many years, while few observations at micro-scale are avai...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76830070","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}
引用次数: 2
Characterising processes at sand-pile interface using digital image analysis and X-ray CT 利用数字图像分析和x射线CT表征砂桩界面的过程
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.18.00232
J. Doreau-Malioche, A. Galvis-Castro, R. Tovar-Valencia, G. Viggiani, G. Combe, M. Prezzi, R. Salgado
{"title":"Characterising processes at sand-pile interface using digital image analysis and X-ray CT","authors":"J. Doreau-Malioche, A. Galvis-Castro, R. Tovar-Valencia, G. Viggiani, G. Combe, M. Prezzi, R. Salgado","doi":"10.1680/JGELE.18.00232","DOIUrl":"https://doi.org/10.1680/JGELE.18.00232","url":null,"abstract":"This paper presents the results of a tensile and a compressive load tests on an instrumented model pile pre-installed in medium–dense sand samples prepared in a half-circular calibration chamber wi...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77019113","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}
引用次数: 12
A novel multiscale neutron-diffraction-based experimental approach for granular media 基于多尺度中子衍射的颗粒介质实验方法
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.18.00234
S. Athanasopoulos, S. Hall, J. Kelleher
{"title":"A novel multiscale neutron-diffraction-based experimental approach for granular media","authors":"S. Athanasopoulos, S. Hall, J. Kelleher","doi":"10.1680/JGELE.18.00234","DOIUrl":"https://doi.org/10.1680/JGELE.18.00234","url":null,"abstract":"The complexity of granular (geo-)materials is associated with the mobility and interaction of their constituent particles. Under the effect of loading, these materials exhibit a highly inhomogeneou...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80365952","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}
引用次数: 2
Effect of pore fluid and wet-dry cycles on structure and hydraulic conductivity of clay 孔隙流体和干湿循环对粘土结构和导电性的影响
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/JGELE.19.00046
T. Thyagaraj, M. Julina
{"title":"Effect of pore fluid and wet-dry cycles on structure and hydraulic conductivity of clay","authors":"T. Thyagaraj, M. Julina","doi":"10.1680/JGELE.19.00046","DOIUrl":"https://doi.org/10.1680/JGELE.19.00046","url":null,"abstract":"Compacted clays in landfill applications are subjected to both physico-chemical changes and wet–dry cycles. Physico-chemical interactions occur at the microstructural level between the clay particl...","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78194896","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}
引用次数: 13
Macroscopic interpretation of nano-scale scattering data in clay 粘土中纳米尺度散射数据的宏观解释
IF 2.1 4区 工程技术
Geotechnique Letters Pub Date : 2019-11-08 DOI: 10.1680/jgele.18.00241
G. Birmpilis, R. Ahmadi-Naghadeh, J. Dijkstra
{"title":"Macroscopic interpretation of nano-scale scattering data in clay","authors":"G. Birmpilis, R. Ahmadi-Naghadeh, J. Dijkstra","doi":"10.1680/jgele.18.00241","DOIUrl":"https://doi.org/10.1680/jgele.18.00241","url":null,"abstract":"The potential of X-ray scattering measurements for monitoring changes on the nano-scale in fine-grained materials in their natural wet state is demonstrated with a series of feasibility tests on well-controlled, kaolin samples, i.e. water content, pH and loading history. The results indicate that subtle changes on the nanometric scale, especially the particle orientations, can be measured with high fidelity using a standard laboratory Small and Wide angle X-ray Scattering instrument. This opens up possibilities for future in-situ loading tests with simultaneous monitoring of the evolving changes of the fabric in fine-grained soils.","PeriodicalId":48920,"journal":{"name":"Geotechnique Letters","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78553044","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}
引用次数: 3
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