地震荷载作用下二元结构反倾开挖斜坡的变形破坏模型试验
孔纪名
刊名四川大学学报( 工程科学版)
2012-06
卷号44期号:增刊1页码:20-25
关键词二元结构反倾斜坡 开挖 地震荷载 变形破坏 模型试验
其他题名Deformation and Failure Model Test of Binary Structure Anti-dip Excavation Slope under the Action of Seismic Load
通讯作者孔纪名
中文摘要

摘要:选取彭州市龙门山镇王家坪滑坡所处斜坡作为二元结构反倾开挖损伤坡的典型实例,进行了地震荷载作用下变形破坏的室内物理模型试验。结果表明,开挖加剧了斜坡在地震荷载作用下的变形破坏从破坏形式来看,反倾斜坡的坡变形破坏分为2个部分,一为浅表覆盖层的整体滑动,二为反倾岩层受浅表覆盖层滑动牵引而发生倾倒崩塌,与野外调查结果吻合从整个变形破坏过程看, 可以划分为以下阶段:地震初始阶段(浅表覆盖层与基岩接触面逐渐贯通过程) 浅表覆盖层滑动启动阶段浅表覆盖层全面滑动及基岩牵引倾倒阶段试验
重现和揭示了斜坡的变形破坏过程和规律

英文摘要The slope of Wangjiaping landslide ,which is located in Longmenshan Town,Pengzhou City,was selected as a typical example
of binary structure anti-dip slope with excavation failure,and indoor physical model tests were carried out on its deformation and
failure under seismic loading. The results showed that the deformation and failure of slope under seismic loading were exacerbated by
excavation. As viewed from failure mode,the deformation and failure of anti-dip slope was characterized by both integral sliding of superficial
overburden and dump-collapse of anti-dip rocks,consistent with the results of field surveys. The entire process of deformation
and failure could be divided into the following phases,which were the initial stage of earthquake ( a gradual connecting process between
superficial overburden and bedrock interface) ,superficial overburden sliding initiation stage,and superficial overburden full sliding and
bedrock traction-dumping stage. The deformation and failure process and laws of binary structure anti-dip slope were reproduced by the
model test.
学科主题岩土力学 ; 工程力学 ; 工程地质学
分类号TU435
收录类别EI
资助信息国家自然科学基金重点资助项目(50639070);中国科学院知识创新工程重要方向项目(KKCX1-YW-03);云南省高校人才引进基金项目
语种中文
公开日期2013-01-10
内容类型期刊论文
源URL[http://192.168.143.20:8080/handle/131551/4781]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
推荐引用方式
GB/T 7714
孔纪名. 地震荷载作用下二元结构反倾开挖斜坡的变形破坏模型试验[J]. 四川大学学报( 工程科学版),2012,44(增刊1):20-25.
APA 孔纪名.(2012).地震荷载作用下二元结构反倾开挖斜坡的变形破坏模型试验.四川大学学报( 工程科学版),44(增刊1),20-25.
MLA 孔纪名."地震荷载作用下二元结构反倾开挖斜坡的变形破坏模型试验".四川大学学报( 工程科学版) 44.增刊1(2012):20-25.
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