NUMERICAL SIMULATION AND TESTING STUDY OF LARGE DEFORMATION FOR CAVERN''S SURROUNDING JOINTED ROCKMASS
节理岩体中洞室围岩大变形数值模拟及模型试验研究

A numerical simulation, so-called block spring method, is used to study thelarge deformation of cavern's surrounding jointed rockmass with excavation and bolting.Furthermore, testing study of the deformation characters and boltins effect of surroundingrocks is made under different initial in-situ stresses during excavation and bolting. Thedeformation laws of surrounding rocks obtained from testing are in consistency with thoseof numerical simulation.