顺层边坡演化状态与稳定性分析  

Stability Analysis of Bedding Slope Based on Effect of Evolution State

作　　者：孙刚[1] 刘娜[1] 王虎妹 龚小琴 王以明[1] 

机构地区：[1]河北工程技术高等专科学校基础部,河北沧州061001 [2]天津铁路职业技术学院建筑工程系,天津300240

出　　处：《人民黄河》2013年第11期79-81,共3页Yellow River

基　　金：河北省高等学校人文社会科学研究青年基金资助项目(SQ126005)

摘　　要：根据对不同摩擦状态相互作用联系起来的双滑块边坡系统的分析,探讨了边坡演化状态对其稳定性的影响。结果表明:顺层边坡的失稳过程具有多物理量控制的特点,与坡体潜在滑面上摩擦滑动本构方程的状态控制变量密切相关;当边坡系统由多部分组成时,系统中任何一个或几个块体失稳都会改变原来边坡系统的结构功能和特性;边坡系统中,影响控制变量的因素体现为系统的几何控制因素和系统的物理力学性质两方面,对于边坡系统而言,一般几何控制因素不会发生剧烈的变化,但物理力学性质的改变则相对容易发生,如大量的边坡失稳正是地下水的作用改变了滑坡以及坡体的性质所诱发。According to the analysis of interaction of different friction state for double slide slope system,it is studied the stability of bedding slop by considering effect of evolution state. The result shows that the instability process of bedding slop is controlled by multiple physical quantities. The stability coefficient is closed to the sliding friction constitutive equation of slip surface. When the slope system has many parts,the structure and function of the system will be changed with the instability of any one or a few blocks. The control variable of slope system can be divided to geo-metric and physical-mechanical properties. For the slope system,generally,the dramatic change of geometric condition will not be occurred. How-ever,the change of physical-mechanical properties is relatively easy to occur,such as the instability of many slopes are induced by the effect of groundwater.

关 键 词：顺层边坡 边坡稳定系数 摩擦力 位移量 

分 类 号：TU457[建筑科学—岩土工程] P642.22[建筑科学—土工工程]