Shell Bolting And Sprayed The Supporting Structure Of The Finite Element Analysis

The buried support structures have widely used in urban build, military and transportation engineering, etc else . Due to the area of the buried structures is ceaselessly enlarged, the stability of the underground hole have become more and more important in early construction, the stability issue of wall rock is the difficulty of the study of the buried structures, and it gets extensive attention. The researches about the stability of deeply buried, large-spaned underground structures in bad wall rock have been focuses in construction circles. The researches about support structures of underground support are mostly in the exploring phase as wall rock often shows discontinuous and ununiformity character.The shell bolting and shotcrete support structures researched in the article is newly crested in our country, which combine the character of space shell, shotctrete, bolting.In the article, build the limited element model in which the load are supported by wall rock classification and support structure, compute and analyse with nonlinear method stress and displacement in the initial crustal stress condition of wall rock and timbering structures, in the ANSYS. The stress and displacement of each other lay can be clearly showed in the digital graph through computations of different ways in the model, avoiding formerly reading results through nephogram. The results along the way of tunnel door's radial direction, received through microcosmic analyses and researches about macrosopical model, can be divinable guide when designers chose types of tunnel and plan support structures. The article can be a reference or an example when construction proper criterion system because no certain criterions or regulations about these structures can be available still. The method in the article can be a try to solve problems about the touch of wall rock and support structures.