DILATANCY

作品数：71被引量：203H指数：8
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相关领域：建筑科学更多>>
相关作者：徐德诗毛桐恩更多>>
相关机构：中国地震局中国地震局地球物理研究所更多>>
相关期刊：《Acta Mechanica Solida Sinica》《International Journal of Mining Science and Technology》《Frontiers of Structural and Civil Engineering》《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划高等学校学科创新引智计划中国博士后科学基金更多>>
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Shear behavior and dilatancy of an artificial hard-matrix bimrock: An experimental study focusing on the role of blocky structure
《Rock Mechanics Bulletin》2024年第4期83-101,共19页Amir Yazdani Saeed Karimi-Nasab Hossein Jalalifar 
Bimrocks are characterized by their geotechnically significant blocky structure,presenting complex shear behavior.This study investigates the shear behavior and dilatancy of bimrocks featuring a rock-like matrix,such ...
关键词：Bimrock Rock-like matrix Shear behavior Shear strength Shear dilation Block breakage 
Fluid-driven fault nucleation, rupture processes, and permeability evolutionin oshima granite — Preliminary results and acoustic emission datasets被引量：1
《Geohazard Mechanics》2024年第3期164-180,共17页Xinglin Lei 
This study investigated the fault nucleation and rupture processes driven by stress and fluid pressure in finegrained granite by monitoring acoustic emissions (AEs). Through detailed analysis of the spatiotemporal distr...
关键词：Rock fracture experiment Injection-induced seismicity Faulting nucleation Fluid diffusion Pre-slip Dilatancy-hardening 
Assessing the range of blasting-induced cracks in the surrounding rock of deeply buried tunnels based on the unified strength theory
《Journal of Central South University》2024年第7期2341-2364,共24页LI Liang CHEN Jia-jun ZHAO Lian-heng HE Ke-pei HU Shi-hong LI Hua-long 
Project(2021JJ10063)supported by the Natural Science Foundation of Hunan Province,China;Project(202115)supported by the Science and Technology Progress and Innovation Project of Hunan Provincial Department of Transportation,China;Project(2021K094-Z)supported by the Science and Technology Research and Development Program of China Railway Guangzhou Group Co.,Ltd。
Blasting-induced cracks in the rock surrounding deeply buried tunnels can result in water gushing and rock mass collapse,posing significant safety risks.However,previous theoretical studies on the range of blasting-in...
关键词：deep drilling and blasting cracks in surrounding rock unified strength theory intermediate principle stress in-situ stress cavity expansion dilatancy characteristics 
Mechanical response and dilatancy characteristics of deep marble under different stress paths:A sight from energy dissipation
《Journal of Central South University》2024年第6期2070-2086,共17页LIU Xiao-hui HAO Qi-jun ZHENG Yu ZHANG Zhao-peng XUE Yang 
Project(2022NSFSC0279)supported by the General Project of Sichuan Natural Science Foundation,China;Project(Z17113)supported by the Key Scientific Research Fund of Xihua University,China;Project(SR21A04)supported by the Research Center for Social Development and Social Risk Control of Sichuan Province,Key Research Base of Philosophy and Social Sciences,Sichuan University,China。
Dilatancy is a fundamental volumetric growth behavior observed during loading and serves as a key index to comprehending the intricate nonlinear behavior and constitutive equation structure of rock.This study focuses ...
关键词：deep marble stress paths DILATANCY energy dissipation empirical dilatancy coefficient 
Numerical modelling of post-failure behaviors of coal specimens
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第2期514-531,共18页Ajeet Yadav Bhaskara Behera Gauri Shankar Prasad Singh Sanjay Kumar Sharma 
A modelling approach consisting of best-fit relations to estimate the post-yield strength parameters is presented for simulating post-peak behavior beyond the point of residual strength of coal pillars having differen...
关键词：Strain softening DILATANCY INTERFACE Shape effect Residual strength 
Simulation of dilatancy-controlled gas migration processes in saturated bentonite using a coupled multiphase flow and elastoplastic H2 M model
《Journal of Rock Mechanics and Geotechnical Engineering》2023年第4期803-813,共11页Eike Radeisen Hua Shao Jürgen Hesser Olaf Kolditz Wenjie Xu Wenqing Wang 
This research was conducted within the DECOVALEX-2023 project;DECOVALEX is an international research project comprising participants from industry,government,and academia,focusing on development of understanding,models and codes in complex coupled problems in sub-surface geological and engineering applications.DECOVALEX-2023 is the current phase of the project.The authors appreciate the DECOVALEX-2023 Funding Organisations Andra,BASE,BGE,BGR,CAS,CNSC,COVRA,US DOE,ENRESA,ENSI,JAEA,KAERI,NWMO,RWM,SÚRAO,SSM and Taipower for their financial and technical support of the work described in this paper.The statements made in the paper are,however,solely those of the authors and do not necessarily reflect those of the Funding Organisations.This work was further supported by the German Federal Ministry for Economic Affairs and Climate Action(BMWK).
Dilatancy-controlled gas flow in preferential pathways plays a key role in the safety analysis of radioactive waste repositories.This is particularly the case for bentonite,an often-preferred barrier material.Gas flow...
关键词：H^(2)M coupling Gas migration Dilatancy-controlled flow Continuous approach Geomaterial heterogeneity OPENGEOSYS 
A post-peak dilatancy model for soft rock and its application in deep tunnel excavation被引量：9
《Journal of Rock Mechanics and Geotechnical Engineering》2023年第3期683-701,共19页Wuqiang Cai Hehua Zhu Wenhao Liang Xiaojun Wang Chenlong Su Xiangyang Wei 
funded by a Special Fund for Basic Research on Scientific Instruments of the National Natural Science Foundation of China(Grant No.41827807);the Study on Intelligent Technology for Tunnels Construction of Sichuan-Tibet Railway(Grant No.19-21-1).
The dilation angle is the most commonly used parameter to study nonlinear post-peak dilatancy(PPD)behavior and simulate surrounding rock deformation;however,simplified or constant dilatancy models are often used in nu...
关键词：Deep excavation Post-peak dilatancy(PPD)model AlejanoeAlonso(AeA)dilatancy model Soft rock 
Shear Strength and Dilatancy of Calcareous Sand in the South China Sea被引量：3
《China Ocean Engineering》2022年第5期781-790,共10页PEI Hui-min WANG Dong 
financially supported by the National Natural Science Foundation of China(Grant Nos.U1806230 and 42025702).
The shear strength and dilatancy of typical uncemented calcareous sand from the South China Sea are investigated by soil lab tests.According to drained triaxial tests at various relative densities and confining stress...
关键词：calcareous sand triaxial tests friction angle DILATANCY drained South China Sea 
Limit analysis of ultimate uplift capacity and failure mechanism ofshallow plate anchors in multi-layered soils被引量：1
《Journal of Central South University》2022年第6期2049-2061,共13页LYU Cheng WANG Zhu-hong ZENG Zheng-qiang ZHANG Xiao 
Project(51874202) supported by the National Natural Science Foundation of China;Project(2017JQ0003) supported by the Sichuan Youth Fund,China。
Considering the fact that in some complex cases,plate anchors are buried in multi-layered geotechnical materials,the ultimate dynamic analysis was performed to investigate the uplift capacity and failure mechanism of ...
关键词：limit analysis dilatancy coefficient ultimate uplift capacity plate anchors multi-layered soils 
A generalized dilatancy angle equation of granular soil
《Journal of Mountain Science》2022年第5期1456-1463,共8页YU Fang-wei 
supported by the National Natural Science Foundation of China(Grant no.41807268);the Youth Innovation Promotion Association of Chinese Academy of Sciences-China(Grant no.2018408)。
This paper presents a generalized dilatancy angle equation of granular soil to cover not only the drained tests but also the undrained tests by introducing a generalized structure of soil:soil skeleton formed by soil ...
关键词：Elastoplastic theory DILATANCY Granular soil SANDS Soil Skeleton Triaxial tests 
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