Numerical Simulation of the Stability of Rock Mass around Large Underground Cavern

Geotechnical problems are complicated to the extent and cannot be expected in other areas since non-uniformities of existing discontinuous, pores materials various properties components. At present, it is extremely difficult develop a program for tunnel analysis that considers all factors. However, has made remarkable growth past several years due development numerical method computer development, given situation was solve formula elasticity, viscoelasticity, plasticity dynamic feature ground when constituent laws, yielding conditions materials, geometrical shape boundary structure were simulated past. The stability rock mass around an underground large cavern key construction large-scale projects. In this paper, carried out based on those parameters by using 2D FEM RS2 program. calculated stress displacements surrounding support compared with allowable values. pattern deformation, state, distribution plastic analyzed. Finally, whole caverns evaluated Rock Science - software. axial forces far below design capacity bolts. strong strength high horizontal vertical ratio enhanced safe working throughout excavation period. Thus wide span system could excavated sedimentary during blasting method. new provides reliable way analyze also will help or optimize subsequent support. Doi: 10.28991/CEJ-2022-08-01-06 Full Text: PDF