STRAIN-SOFTENING

作品数：25被引量：78H指数：5
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相关作者：胡静黄井武更多>>
相关机构：武汉理工大学暨南大学更多>>
相关期刊：《Science China Mathematics》《Acta Mechanica Sinica》《Transactions of Nonferrous Metals Society of China》《Journal of Rock Mechanics and Geotechnical 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中国博士后科学基金国家教育部博士点基金更多>>
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An enhanced numerical model for considering coupled strainsoftening and seepage effects on rock masses surrounding a submarine tunnel
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第3期1445-1458,共14页Lan Cui Wenyu Yang Qian Sheng Junjie Zheng Wengang Zhang Kai Guan Fei Song 
supported by the National Natural Science Foundation of China(Grant Nos.52279118 and U21A20159);Sub-project of National Key Research and Development(Grant No.2023YFC3007403).
The seepage of groundwater and the strain-softening of rock mass in a submarine tunnel expand the plastic region of rock,thereby affecting its overall stability.It is therefore essential to study the stress and strain...
关键词：Seepage force STRAIN-SOFTENING Submarine tunnel Numerical procedure Coupling effect 
Viscoelastic plastic interaction of tunnel support and strain-softening rock mass considering longitudinal effect
《Rock Mechanics Bulletin》2024年第4期70-82,共13页Chen Xu Sheng Wang Caichu Xia Lei Liu Zhifu Ma Jun Yang 
supported by the National Natural Science Foundation of China(Grant No.42207176 and 52278402);Ningbo Public Welfare Research Program Project(Grant No.2023S100);Ningbo Natural Science Foundation(Grant No.2022J116);China's National Key R&D Program“Intergovernmental International Science and Technology Innovation Cooperation”(Grant No.2024YFE0105800).
A simplified two-stage method was employed to provide an explicit solution for the time-dependent tunnel-rock interaction,considering the generalized Zhang-Zhu strength criterion.Additionally,a simplified mechanical m...
关键词：Tunnel excavation STRAIN-SOFTENING Generalized Zhang-Zhu strength criterion Time-dependent behavior Longitudinal effect 
Analytical prediction for time-dependent interaction of a circular tunnel excavated in strain-softening rock mass被引量：2
《Rock Mechanics Bulletin》2024年第3期53-68,共16页Chen Xu Sheng Wang Caichu Xia 
supported by the National Natural Science Foundation of China(Grant No.52278402 and 42207176);Ningbo Public Welfare Research Program Project(Grant No.2023S100);Ningbo Natural Science Foundation(Grant No.2022J116).
Viscoelastic plastic solutions for tunnel excavation in strain-softening rock mass and tunnel-rock interaction are proposed based on the Mohr-Coulomb and the Generalized Zhang-Zhu(GZZ)strength criterion considering st...
关键词：Time-dependent behavior GZZ strength criterion STRAIN-SOFTENING Tunnel-rock interaction Stress path 
A Method for Evaluating the Maximum Bending Degree of Flexural Toppling Rock Masses Based on the Rock Tensile Strain-Softening Model
《Journal of Earth Science》2024年第4期1243-1253,共11页Jiongchao Wang Jun Zheng Jichao Guo Qing Lü Jianhui Deng 
funded by the National Natural Science Foundation of China(No.41972264);Zhejiang Provincial Natural Science Foundation of China(No.LR22E080002);the Key R&D Project of Zhejiang Province(No.2021C03159).
Flexural toppling occurs when a series of layered rock masses bend towards their free face.It is important to evaluate the maximum bending degree and the requirement of supports of flexural toppling rock mass to preve...
关键词：flexural toppling rock mass maximum bending degree strain-softening model curvature rock mechanics 
An improved strain-softening constitutive model of granite considering the effect of crack deformation被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第4期1202-1215,共14页Yapeng Li Qiang Zhang Qiuxin Gu Peinan Wu Binsong Jiang 
financially supported by the National Natural Science Foundation of China(Grant No.52074269).
This paper presents an improved strain-softening constitutive model considering the effect of crack deformation based on the triaxial cyclic loading and unloading test results.The improved model assumes that total str...
关键词：STRAIN-SOFTENING Crack deformation effect Plastic shear strain Constitutive model 
Design of the yielding support used highly deformable elements for a tunnel excavated in squeezing rock被引量：1
《Journal of Mountain Science》2023年第5期1458-1468,共11页TIAN Hong-ming TIAN Yun CHEN Wei-zhong TAN Xian-jun SHU Xiao-yun LIU Xia-lin 
the support of the National Natural Science Foundation of China(Grant Nos.52179113,51991392 and 52279119);the Second Comprehensive Scientific Expedition on the Tibetan Plateau(No.2019QZKK0904)。
Yielding support is often used in the squeezing tunnel to prevent damage to the lining induced by large deformation of the surrounding rock.Highly Deformable Elements(HDE)which is often installed along the circumferen...
关键词：Highly deformable elements Squeezing tunnel Yielding support Strain-softening behavior 
Analytical solutions for deep tunnels in strain-softening rocks modeled by different elastic strain definitions with the unified strength theory被引量：2
《Science China(Technological Sciences)》2022年第10期2503-2519,共17页SUN ZhenYu ZHANG DingLi FANG Qian DUI GuanSuo CHU ZhaoFei 
supported by the Fundamental Research Funds for the Central Universities (Grant No. 2021RC202);the National Natural Science Foundation of China (Grant No. 51738002)
This paper presents the analytical solutions for the responses of tunnels excavated in rock masses exhibiting strain-softening behavior. Since previous analyses give little consideration to the effect of the intermedi...
关键词：analytical solution elastic strain definition unified strength theory STRAIN-SOFTENING intermediate principal stress model test 
Modified ground response curve(GRC)in strain-softening rock mass based on the generalized Zhang-Zhu strength criterion considering over-excavation被引量：5
《Underground Space》2021年第5期585-602,共18页Chen Xu Caichu Xia Changling Han 
supported by the National Natural Science Foundation of China(Grant No.51778475).
The ground response curve(GRC)depicts the relationship between support reaction force and ground displacement,which improves the understanding of ground-support interaction and provides important references to the tun...
关键词：Ground response curve Large strain Over-excavation STRAIN-SOFTENING Soft rock tunnel 
Simple approach for solution of the quasi-plane-strain problem in a circular tunnel in a strain-softening rock mass considering the out-of-plane stress effect
《Underground Space》2020年第4期339-353,共15页Jinfeng Zou Lu Liu Mingyao Xia 
This work was supported by the National Basic Research Program of China("973"Project)(Grant No.2013CB036004);the National Natural Science Foundation of China(Grant No.51208523).
The out-of-plane stress is sometimes the major or intermediate principal stress in a circular tunnel opening.The influences of the outof-plane stress and axial strain are often neglected in the stability analyses of t...
关键词：Quasi-plane-strain problem Plastic strain Out-of-plane stress Three-dimensional plastic potential function Deformation dependence 
Factor of safety of strain-softening slopes被引量：5
《Journal of Rock Mechanics and Geotechnical Engineering》2020年第3期473-483,共11页Hossein Rafiei Renani C.Derek Martin 
financially supported by the Natural Sciences and Engineering Research Council of Canada(NSERC:RES0014117).
Stability analysis of strain-softening slopes is carried out using the shear strength reduction method and Mohr-Coulomb model with degrading cohesion and friction angle.The e ffect of strain-softening behavior on the ...
关键词：Slope stability analysis Factor of safety ratio Shear strength reduction Perfectly-plastic behavior Open pit slope Clay shale slope 
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