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SANDSTONE: 作品数：530被引量：1216H指数：16; 导出分析报告; 相关领域：天文地球更多>>; 相关作者：李易隆曹宏巴晶姚逢昌杨志芳更多>>; 相关机构：中国石油天然气集团公司中国地质大学（北京）中国石油中国石油天然气股份有限公司更多>>; 相关期刊：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中国博士后科学基金NSAF联合基金更多>>

True triaxial unloading test on the mechanical behaviors of sandstone:Effects of the intermediate principal stress and structural plane: 《Journal of Rock Mechanics and Geotechnical Engineering》2025年第4期2208-2226,共19页Fan Feng Zhiwei Xie Shaojie Chen Diyuan Li Siyu Peng Tong Zhang; supports from the National Natural Science Foundation of China (Grant Nos.52004143 and 52374095);the open fund for the Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines (Grant No.SKLMRDPC21KF06).; A series of true triaxial unloading tests are conducted on sandstone specimens with a single structural plane to investigate their mechanical behaviors and failure characteristics under different in situ stress states...; 关键词：True triaxial unloading Dip angle of structural plane Intermediate principal stress Mechanical behaviors Cracking modes Failure criterion

Crack and failure behaviors of sandstone subjected to dynamic loads visualized by micro-computed tomography: 《Journal of Rock Mechanics and Geotechnical Engineering》2025年第3期1459-1473,共15页Xingyu Zhang Pengfei Guo Xiangbo Gao Chunjiang Zou Kaiyu Wang Jinzhu Hu Yan Sun Liang Lei; supported by Research Center for Industries of the Future(RCIF);Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province(No.ZJRMG-2022-03);Key Research and Development Program of Guangxi Province(No.Guike AB22080035);which are gratefully acknowledged.In addition,we are grateful for the valuable and constructive feedback provided by the anonymous reviewers,which has greatly improved this manuscript.; Microscopic dynamic failure behaviors of rocks are significant to rock engineering,which is still insufficiently understood.This study combines split Hopkinson pressure bar(SHPB)and micro-CT(computed tomography)to exp...; 关键词：Dynamic rock failure 3D observation Microscopic failure mechanism

Microstructure deterioration of sandstone under freeze-thaw cycles using CT technology:The effects of different water immersion conditions: 《Journal of Rock Mechanics and Geotechnical Engineering》2025年第3期1599-1611,共13页Bei Qiu Lifeng Fan Xiuli Du; funding support from the National Natural Science Foundation of China(Grant No.12172019).; In cold regions,rock structures will be weakened by freeze-thaw cycles under various water immersion conditions.Determining how water immersion conditions impact rock deterioration under freeze-thaw cycles is critical...; 关键词：Freeze-thaw cycles Water immersion condition Computed tomography(CT) Microstructure deterioration SANDSTONE

Effect of lateral stress on frictional properties of a fracture in sandstone: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第11期4416-4427,共12页Zhechao Wang Jinmeng Zhao Derek Elsworth Xia-Ting Feng Pengyu Wang; supported by National Nature Science Foundation of China (Grant No.42177157);the Science and Technology Program of Liaoning Province (Grant No.2023JH1/10400003);the Applied Basic Research Programof Liaoning Province (Grant No.2023JH2/101300153).; The injection of large volumes of natural gas into geological formations,as is required for underground gas storage,leads to alterations in the effective stress exerted on adjacent faults.This increases the potential ...; 关键词：Sandstone fracture Friction coefficient Lateral stress Normal stress Shear rate Rate-state friction model

Shear behavior of single-joint bolted sandstone subjected to dryewet cycles:Experimental and analytical approaches被引量：1: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第10期4216-4228,共13页Luobin Zheng Kaiwen Liu; the Natural Science Foundation of China(Grant Nos.42302314 and 52078427);the Open foundation of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection(Grant No.SKLGP2022K001).; A series of direct shear tests under constant normal loading conditions were carried out on specimens of bolted sandstone single-joint treated with different numbers of dryewet cycles.The experimental results show tha...; 关键词：Reinforcement technique Interface behavior Bolted sandstone Cyclic dryingewetting Analytical model

Estimation of unfrozen water content of saturated sandstones using nuclear magnetic resonance, mercury intrusion porosimetry, and ultrasonic tests: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第9期3465-3484,共20页Fei Liu Shibing Huang Gang Liu Shilin Yu; supported by the National Natural Science Foundation of China(Grant No.42377191);Hubei Provincial Natural Science Foundation of China(Grant No.2021CFA094);“The 14th Five Year Plan”Hubei Provincial advantaged characteristic disciplines(groups)project of Wuhan University of Science and Technology(Grant No.2023A0303)。; The unfrozenwater content(UWC)is a crucial parameter that affects the strength and thermal properties of rocks in relation to engineering construction and geological disasters in cold regions.In this study,three diffe...; 关键词：Unfrozen water content(UWC) Nuclear magnetic resonance(NMR) Mercury intrusion porosimetry(MIP) Pore structures P-wave velocity SANDSTONE

Microstructural and thermal properties of coal measure sandstone subjected to high temperatures: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第8期2909-2921,共13页Weijing Xiao Dongming Zhang Shujian Li Mingyang Wu; supported by the Scientific Research Foundation of State Key Laboratory of Coal Mine Disaster Dynamics and Control(Grant No.2011DA105287-zd201804);Jiangxi Provincial Natural Science Foundation of China(Grant No.20232BAB214036).; To study the microscopic structure,thermal and mechanical properties of sandstones under the influence of temperature,coal measure sandstones from Southwest China are adopted as the research object to carry out high-t...; 关键词：Rock mechanics Coal measure sandstone MICROMORPHOLOGY Thermal damage

Effects of freeze-thaw cycles on sandstone in sunny and shady slopes: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第7期2503-2515,共13页Dian Xiao Xiaoyan Zhao Corrado Fidelibus Roberto Tomás Qiu Lu Hongwei Liu; supported by the National Natural Science Foundation of China(Grant No.41672295);the Major Systematic Project of Scientific and Technological Research and Development Plan of China Railway Corporation(Grant No.P2018G047);supported by a PhD fellowship from the China Scholarship Council.Roberto Tomás was partially funded by the Conselleria de Innovación,Universidades,Ciencia y Sociedad Digital de la Generalitat Valenciana(CIAICO/2021/335).; A growing rock engineering activity in cold regions is facing the threat of freeze-thaw(FT)weathering,especially in high mountains where the sunny-shady slope effects strongly control the difference in weathering beha...; 关键词：Sunny-shady slope Freeze and thaw Pore structure Tight rocks Talus slope Cold regions

3D digital-image correlation insight into generalized relaxation behavior of sandstone under stress and pore pressure coupling: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第7期2516-2536,共21页Cancan Chen Heping Xie Jiang Xu Seisuke Okubo Shoujian Peng Cunbao Li Minghui Li; financially supported by the National Natural Science Foundation of China(Grant Nos.52304099,52172625);Shenzhen Science and Technology Program(Grant No.RCYX20221008092903013).; The occurrence of geological hazards and the instability of geotechnical engineering structures are closely related to the time-dependent behavior of rock.However,the idealization boundary condition for constant stres...; 关键词：Generalized relaxation Stress level Direction coefficient Major-strain field Microcrack damage Stress threshold

Effects of seepage pressure on the mechanical behaviors and microstructure of sandstone被引量：1: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第6期2033-2051,共19页Xuewei Liu Juxiang Chen Bin Liu Sai Wang Quansheng Liu Jin Luo; supported by the National Natural Science Foundation of China(Grant Nos.U22A20234 and 42277170);Hubei Province Key Research and Development Project(Grant No.2023BCB121).; Surrounding rocks of underground engineering are subjected to long-term seepage pressure,which can deteriorate the mechanical properties and cause serious disasters.In order to understand the impact of seepage pressur...; 关键词：Rock mechanics Mechanical property Seepage pressure Numerical simulation MICROCRACKS

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