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地震作用下复合土钉支护边坡稳定性模型及应用
引用本文:朱彦鹏,马天忠.地震作用下复合土钉支护边坡稳定性模型及应用[J].兰州理工大学学报,2009,35(5).
作者姓名:朱彦鹏  马天忠
作者单位:兰州理工大学,土木工程学院,甘肃,兰州,730050
基金项目:甘肃省科技厅攻关项目 
摘    要:在考虑复合土钉支护结构与土体协同工作的情况下,根据土质边坡的破坏模式,考虑预应力锚杆中施加的预应力对稳定性计算的影响,根据极限平衡理论建立复合土钉支护边坡地震稳定性分析模型.推导计算机搜索法的边坡复合土钉支护滑移面动态搜索模式,实现随着复合土钉设计参数变化的复合土钉支护稳定性动态分析过程.较好地解决了地震作用下复合土钉支护结构稳定性分析问题.编制复合土钉支护边坡动力稳定性分析程序,结合具体工程实例进行验算.结果表明这种稳定性分析模型能够较准确地确定复合土钉支护边坡的最危险滑移面及其对应的稳定系数,具有较高的可靠度;该计算方法对土质较均匀的黄土地区是适用的.

关 键 词:复合土钉  边坡稳定性  地震作用  极限平衡理论  拟静力法

Stability model of slope supported by composite soil nailing wall and its application under earthquake
ZHU Yan-peng,MA Tian-zhong.Stability model of slope supported by composite soil nailing wall and its application under earthquake[J].Journal of Lanzhou University of Technology,2009,35(5).
Authors:ZHU Yan-peng  MA Tian-zhong
Institution:ZHU Yan-peng,MA Tian-zhong(College of Civil Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China)
Abstract:Taking into consideration the coordinated work of composite soil nail supporting structure with soil body and according to failure mode of soil slope,the seismic stability analysis model for composite soil nail supported slope was established by using limiting equilibrium theory,in which the influence of prestress in anchor on stability analysis was considered.The dynamic search pattern of slipping surface of composite soil nail supported slope was derived with computer searching,so that the dynamical analy...
Keywords:composite soil nailing  slope stability  seismic action  limiting equilibrium theory  pseudo-static approach  
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