To further investigate the impact of fault characteristics on cavern stability,numerical simulations were con-ducted to assess the effects of varying fault dip angles,inclinations,and thicknesses on cavern displacement,stress,and plastic zone features.It is found that the increase of the dip angle of the fault fracture zone will reduce the horizon-tal displacement of the vault and the right wall of the plant,but will increase the uplift of the floor plate,and the change of dip angle will lead to the increase of the maximum and minimum principal stresses first and then decrease.The area of the plastic zone did not change much,but the distribution range was optimized.The horizontal and vertical displacement of the surrounding rock increases first and then decreases with the increase of the tendency of the fault fracture zone,the change trend of the principal stress is similar,and the area distribution range of the plastic zone gradually expands but the depth changes little. The increase of the thickness of the fault fracture zone will significantly increase the horizontal displacement of the vault and the right wall of the plant,and the vertical displacement will change abruptly,and the area of the principal stress and plastic zone will increase.
关键词
断层特征/单厂房/围岩稳定性/数值模拟
Key words
fault characteristics/single cavern/stability of surrounding rock/numerical simulation
维普
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