The Study On Wall Rock Stability And Supporting Structure Of High-Buried Underground Cavern

People must to obtain something from the sky and underground because of being short of energy sources and living space. Nowaday, for the developing of science and technology, people make great progress in the scale and the deepness and the rate of underground project. The rocks's initial stress is higher when the deepness is increase, the rock burst and large deformation result from high initial geostress is the key factor for the restricting of design and construct. So it is important to study on the stability of the rock and supporting structure.In this paper, taking example of one high-buried Underground Cavern in our Contry, on the basis of analyzing initial geostress, simulated the course of excavation and support by numerical method. It adopt different model for rigid rock and weak rock. It analyzed the stress law and deformation law of surrounding rocks.and also studied some destruct law and supporting measure for different kind of rocks. It probed into the effect law of deepness,rocks's parameter and length of excavation. It also gave the rational supporting time by studing the law deformation and the stress of tunnel liner in the process of excavation. This paper draw some useful conclusions, and the result can give example for other similar project.