锚杆作用机理及不同锚固方式的力学特征

Study on the Principle of Bolt Action and the Feature of Variable Anchorage

运用理论分析及数值计算的方法对锚杆作用力的产生机理、分布规律及其对岩体作用的力学效应进行了探讨。结果表明 ,锚杆与围岩间的相对位移或相对位移趋势是锚杆作用产生的条件 ;从力学角度考虑 ,端部锚固。

According to the numerical analysis results, the axial force distribution principles of bolt have been studied. According to the mechanical feature, end anchorage and total length filling is the best style.