典型文献
Mechanism of progressive failure of a slope with a steep joint under the action of freezing and thawing:model test
文献摘要：
The stability of slope rock masses is influenced by freeze-thaw cycles in cold region,and the mechanism of stability deterioration is not clear.In order to understand the damage and progressive failure characteristics of rock masses under the action of freezing and thawing,a model test was conducted on slope with steep joint in this study.The temperature,frost heaving pressure and deformation of slope rock mass were monitored in real-time during the test and the progressive failure mode was studied.The experimental results show that the temperature variations of cracking and the rock mass of a slope are different.There are obvious latent heat stages in the temperature-change plot in the crack,but not in the slope rock masses.The frost heaving effect in the fracture is closely related to the constraint conditions,which change with the deformation of the fracture.The frost heaving pressure fluctuates periodically during freezing and continues to decrease during thawing.The surface deformation of the rock mass increases during freezing,and the deformation is restored when it thaws.Freeze-thaw cycling results in residual deformation of the rock mass which cannot be fully restored.Analysis shows that the rock mass at the free side of the steep-dip joint rotates slightly under the frost heaving effect,causing fracture propagation.The fracture propagation pattern is a circular arc at the beginning,then extends to the possible sliding direction of the rock mass.Frost heaving force and fracture water pressure are the key factors for the failure of the slope,which can cause the crack to penetrate the rock mass,and a landslide ensues when the overall anti-sliding resistance of the rock mass is overcome.
文献关键词：
中图分类号：
作者姓名：
LI Cong;ZHANG Rong-tang;ZHU Jie-bing;LU Bo;SHEN Xiao-ke;WANG Xiao-wei;LIU Jie-sheng;WU Liang-Iiang;ZHANG Xin-zhou
作者机构：
School of Civil Engineering and Architecture,Wuhan Polytechnic University,Wuhan 430023,China;Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources,Changjiang River Scientific Research Institute,Wuhan 430010,China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China
文献出处：
引用格式：
[1]LI Cong;ZHANG Rong-tang;ZHU Jie-bing;LU Bo;SHEN Xiao-ke;WANG Xiao-wei;LIU Jie-sheng;WU Liang-Iiang;ZHANG Xin-zhou-.Mechanism of progressive failure of a slope with a steep joint under the action of freezing and thawing:model test)[J].山地科学学报（英文版）,2022(10):2999-3012
A类：
thaws,ensues
B类：
Mechanism,progressive,failure,slope,steep,joint,action,freezing,thawing,model,test,stability,rock,masses,influenced,by,freeze,cycles,cold,region,mechanism,deterioration,clear,In,order,understand,damage,characteristics,was,conducted,this,study,temperature,frost,heaving,pressure,deformation,were,monitored,real,during,studied,experimental,results,that,variations,cracking,are,different,There,obvious,latent,heat,stages,change,plot,but,effect,fracture,closely,related,constraint,conditions,which,fluctuates,periodically,continues,decrease,surface,increases,restored,when,Freeze,cycling,residual,cannot,fully,Analysis,shows,side,dip,rotates,slightly,causing,propagation,pattern,circular,arc,beginning,then,extends,possible,sliding,direction,Frost,force,water,key,factors,cause,penetrate,landslide,overall,anti,resistance,overcome
AB值：
0.419967
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