摘要
提出了一个基于测量锚固节理岩石位移的用以预测锚杆拉剪大变形行为的分析模型,给出了受拉剪荷载作用下的锚固节理岩石综合抗力的表达式,得到了考虑锚杆作用的锚固节理岩石剪切阻力与节理位移(或节理中锚杆变形角)间函数关系的理论全程曲线,试验验证了理论方法的有效性。
This paper presents a new analytical model for predicting the localized shear-tensile behavior of a bolt under large deformation based on measuring the displacement of bolted rock joints. The formulation of global resistance of bolted rock joints under shearing-tensile loads is proposed. The theoretical complete curves of bolts contribution on reinforced rock joints as the function of joint displacements (or deformation angle of bolt at rock joints) are obtained, and the validity of the theoretical approach is confirmed by experiment results.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2004年第1期140-144,共5页
Chinese Journal of Geotechnical Engineering
基金
Foundationitem :SupportedbyChineseNationalNaturalScienceFoundation(50 30 4 0 1 2 )
the 973ProgramofChina(2 0 0 2CB41 2 70 1 )andAwardProjectforExcellentYoungTeacher(No .2 0 0 0 - 91 )ofEducationMinistryofChina
关键词
锚杆
岩石节理
剪切阻力
大应变变形
荷载
bolt
analytical model
large strain deformation
global resistance
rock joints
