节理对采动覆岩断裂边界影响的研究

探讨了采动覆岩断裂边界形成的力学原理及特征，研究了岩体中的初始节理对采动覆岩断裂边界的控制作用，建立了节理端部附近的最大切向应力值和节理开裂的力学条件，分析了节理对断裂边界的影响规律，并利用实验进行了验证，与实验结果相吻合。

Study on the Effect of Joints on the Boundary of Mining Covered Rock Break

This article Approaches the mechanics principle and feature on which the boundary of the covered rock break appears,studies the control from the original joints in rock mass to the boundary of covered rock break and gives the formula of the mechanics condition in which joints effects the boundary' of covered rock break.And the article verifies the result of simulated tests of equivalent materials.