论岩体软弱结构面对应力波传播的影响

本文引入岩体软弱结构面上的边界条件,给出应力波斜入射到能滑移、有摩擦的软弱结构面时,波势、应力和能流的透反射关系和一些计算结果。在此基础上,提出了判断岩体是否沿结构面产生相对滑移的准则,给出计算结构面能量耗损的关系式和一些计算结果,并就与工程爆破有关的一些问题进行了讨论。

INFLUENCE OF THE STRUCTURAL WEAKNESS PLANES IN ROCK MASS ON THE PROPAGATION OF STRESS WAVES

In this paper, the relations among wave potentials, stresses, and energy of the incident compression wave, the refracted, reflected longitudial and transverse waves, the formula of energy absorption of the structural weakness plane, and some computational results have been obtained according to the boundary conditions at the structural weakness plane with friction slipping. The criterion for judging if rocks on both sides of the plane slip relatively along the plane is proposed. On this basis, some problems about engineering blasting is discussed.