不同地震力偏角下线性边坡的稳定性分析  

Stability Analysis on Linear Slope under Different Seismic Angle Force

作　　者：李哲[1] 张浩[2] 王纲 荆周宝 李超[2] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,西安710064 [2]长安大学公路学院,西安710064 [3]武警水电部队第一总队第一支队,河北唐山063004

出　　处：《广东公路交通》2015年第3期56-60,共5页Guangdong Highway Communications

基　　金：交通部科技项目(2008353361420);高等学校博士学科点专项科研基金(20110205110003)

摘　　要：为了解决线性边坡在地震荷载下的稳定性问题,使用毕肖普法,考虑受地震力影响产生切向力和竖向力,建立线性边坡受力模型。对不同地震力偏角范围内一阶边坡安全系数计算公式进行推导。编写计算机软件进行迭代计算,得出在不同地震力偏角时线性边坡的安全系数和最小安全系数所对应的地震力偏角,以及安全系数随不同地震加速度与震动时刻的变化规律,为线性边坡抗震设计提供重要的参考依据。For the problem of the linear slope stability under the loads of the earthquake, the vertical force and horizontal force formed in the earthquake have been considered with the Bishop Method. The stress model for slope has been built up. In the paper, the safety factor of slope with varies ranges of different Seismic Force an- gle has been derived, computer programming software has been developed to obtain the safety factor of slope and the corresponding minimum safety factor in different seismic force angle through iterative calculations has been obtained, which could provide important references for the seismic design of slope.

关 键 词：线性边坡 支护结构 边坡失稳 地震角 防护力 边坡防护 

分 类 号：U416.14[交通运输工程—道路与铁道工程]