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UNLOADING: 作品数：113被引量：422H指数：12; 导出分析报告; 相关领域：建筑科学更多>>; 相关作者：罗琳陶继勇翁磊李夕兵杜坤更多>>; 相关机构：中南大学四川省建筑科学研究院中国农业大学南京航空航天大学更多>>; 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国家教育部博士点基金中国博士后科学基金更多>>

Creep constitutive model of yellow sandstone under coupling action of unloading and wet-dry cyclic damage: 《Journal of Mountain Science》2025年第3期1087-1100,共14页QIN Zhe LIU Zhen ZHANG Run-chang FU Hou-li; We gratefully acknowledge the financial support from the Key Laboratory of Geological Safety of Coastal Urban Underground Space,Ministry of Natural Resources(BHKF2022Y03);Shandong Provincial Colleges and Universities Youth Innovation Technology Support Program,Education Department of Shandong Province(grant number 2023KJ092).; The study focuses on the creep characteristics of significant yellow sandstone for water conservancy, hydropower, and other waterrelated slope excavation unloading rock-graded loading creep characteristics. It conduct...; 关键词：Pre-peak unloading Dry and wet cycles Creep test Deformation characteristics Creep constitutive model

Energy characteristics of saturated Jurassic sandstone in western China under different stress paths: 《Deep Underground Science and Engineering》2025年第1期158-168,共11页Yi Yang Jian Lin Yun Wu Shilong Peng Wanhang Shao Lining Yang; Anhui Natural Science Foundation Youth Program,Grant/Award Number:2208085QE142;National Natural Science Foundations of China,Grant/Award Numbers:52004003,52304073;Opening Foundation of Anhui Province Key Laboratory of Building Structure and Underground Engineering,Grant/Award Number:KLBSUE-2022-04。; To study the energy evolution and failure characteristics of saturated sandstone under unloading conditions,rock unloading tests under different stress paths were conducted.The energy evolution mechanism of the unload...; 关键词：energy evolution failure characteristics SANDSTONE stress path UNLOADING

Experimental investigation of the impact of soybean oil-derived surfactant as a surface-active agent during gas well deliquification: 《Petroleum Research》2024年第4期489-501,共13页Gbadegesin Abioun Adeyemi Kegang Ling Adesina Fadairo; The inability of the gas rate to overcome the gas critical(minimum)flow rate leads to liquid loading in a gas well.To avoid premature well shut-in,the injection of surfactants is one of the standard methods used in ga...; 关键词：Deliquification Liquid unloading Soybean oil derived surfactant(SODS) Sodium dodecyl sulphate(SDS)

Numerical study on micro-fracture mechanism of rock dynamic failureinduced by abrupt unloading under high in-situ stresses: 《Theoretical & Applied Mechanics Letters》2024年第6期486-495,共10页Yuezong Yang Anye Li Zhushan Shao Kui Wu Wei Wei Wenhui Du Yujie Wang; supported by the National Natural Science Foundation of China(Grant No.12302501);the China Postdoctoral Science Foun-dation(Grant No.2023MD744236);the Natural Science Basic Research Program of Shaanxi(Grant No.2024JC-YBQN-0061);the Postdoctoral Research Project of Shaanxi Province(Grant No.2023BSHEDZZ270);the Special Scientific Research Plan Project of Education Department of Shaanxi Provincial Government(Grant No.23JK0509);the Scientific Research Foundation for Excellent Returned Overseas Chinese Schol-ars funded by Shaanxi Provincial Government(Grant No.2023-021);the Innovation and Entrepreneurship Projects for College Students(Grant No.S202310703047).; Rock burst is a kind of severe engineering disaster resulted from dynamic fracture process of rocks.The macrofailure behaviors of rocks are primarily formed after experiencing the initiation,propagation,and coalescenc...; 关键词：Rock burst MICRO-FRACTURE Dynamic failure Unloading effect

Effects of dry-wet cycles on the mechanical properties of sandstone with unloading-induced damage: 《Journal of Mountain Science》2024年第10期3474-3486,共13页NAN Gan ZHANG Jiaming LUO Yi WANG Xinlong HU Zhongyi; financially supported by the National Natural Science Foundation of China(42177166).; Sandstone is the fundamental material in various engineering and construction projects.However,the mechanical integrity of sandstone can be compromised by initial unloading damage resulting from activities such as eng...; 关键词：UNLOADING Dry-wet cycle Jointed fine sandstone Strength criterion fracture criterion Mechanical properties

Bioresorbable stent unloading during percutaneous coronary intervention:Early detection and management: 《World Journal of Cardiology》2024年第10期616-618,共3页Nabil Eid Mohamed Abdel Wahab Amardev Singh Thanu; In this letter,we comment on a recent case report by Sun et al in the World Journal of Cardiology.The report describes the successful management of a rare complication:The unloading or detachment of a bioresorbable st...; 关键词：Coronary artery diseases Percutaneous coronary intervention Optical coherence tomography Bioresorbable/Biodegradable stents Stent unloading/detachment Myocardial bridge Intravascular ultrasound Coronary angiography

3D DEM simulation of hard rock fracture in deep tunnel excavation induced by changes in principal stress magnitude and orientation被引量：2: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第10期3870-3884,共15页Weiqi Wang Xia-Ting Feng Qihu Wang Rui Kong Chengxiang Yang; the financial support from the National Natural Science Foundation of China(Grant No.51839003);Liaoning Revitalization Talents Program(Grant No.XLYCYSZX 1902);Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources(Grant No.2023zy002).; To achieve the loading of the stress path of hard rock,the spherical discrete element model(DEM)and the new flexible membrane technology were utilized to realize the transient loading of three principal stresses with ...; 关键词：Deep hard rock tunnel Three-dimensional(3D)discrete element model(DEM) Magnitude and orientation of principal stress Transient unloading Fracture mechanism

Numerical and analytical studies on the coupling effects of unloading and cutterhead vibration on tunnel face in dry sandy ground: 《Underground Space》2024年第5期256-272,共17页Junzuo He Shaoming Liao Mengbo Liu Motoi Iwanami Yanqing Men; National Key R&D Program of China(Grant No.2022YFB2602200);China Scholarship Council(Grant No.202106260179);National Natural Science Foundation of China(Grant No.52308412);China Postdoctoral Science Foundation(Grant No.2023M732668)for their financial support.; When tunnelling in difficult ground conditions,shield machine would inevitably produce significant ground loss and vibration,which may disturb the ground ahead of the tunnel face.In this paper,discrete element models ...; 关键词：Cutterhead vibration Tunnel face stability Discrete element method Pseudo-static method

Study on the time delay failure characteristics of sandstone unloading under dynamic disturbance: 《Deep Resources Engineering》2024年第3期43-56,共14页Huafeng Deng Yening Huang Yao Xiao Pengfei Xu Jianlin Li Mingyang Wang; the financial support provided by the National Natural Science Foundation of China(Grant No.U22A20600,U2034203).; The rockburst caused by underground engineering excavation exhibits a significant lag effect.Studies have shown that the occurrence of lag-type rockburst is closely related to the delayed failure of rocks.This paper f...; 关键词：Time delay UNLOADING Deformation characteristics Destructive form Particle Flow Program

Effects of pressure relief holes on coal burst:Insights from true-triaxial unloading tests: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第9期3378-3394,共17页Fuqiang Ren Murat Karakus Giang Nguyen Thomas Bruning; financial support from the Australian Coal Association Research Program(ACARPdC27020-Extension);the China Scholarship Council.; Drilling pressure relief is one of the methods to reduce the risk of coal bursts in deep mines.However,the effect of the drill hole orientations has not been studied well enough to understand their impact on the burst...; 关键词：Coal burst Triaxial unloading Drilling orientation Ejection characteristic Acoustic emission(AE)

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