土钉在拉拔荷载作用下的剪切位移计算  

Analytical Calculation of Shear Displacement for Soil Nail Under Pull-out Load

作　　者：杨勇 YANG Yong(Qingdao Beiyang Architectural Design Co.Ltd., Qing dao 266000,Chin)

机构地区：[1]青岛北洋建筑设计有限公司,山东青岛266000

出　　处：《工程建设与设计》2017年第21期95-97,共3页Construction & Design for Engineering

摘　　要：基于假设软化段总应变率等于塑性应变率的改进的梯度塑性理论,对软化段塑性应变率积分得到土钉-土界面荷载传递模型中软化段的塑性剪切位移;对求得的土钉-土界面剪切位移解析进行了参数分析,为从渐进性破坏角度的土钉表面应力分布理论解析解的获得提供依据。Based on the assumption of the total strain rate is equal to the plastic rate in the softening stage corresponding improved gradient plasticity theory, plastic shear displacement can be deduced by integrating the plastic strain-rate in softening stage, parameters in the deduced shear displacement were analyzed, a basis to obtain the analytical solution of stress distribution on soil nail surface from the perspective of progressive destruction is provided.

关 键 词：土钉 软化 剪切位移 梯度塑性理论 

分 类 号：U416.14[交通运输工程—道路与铁道工程]