西南某水电站地下厂房顶拱衬砌裂损机理探讨

Discussion on the mechanism of a southwest hydropower station underground workshop roof arch lining crack and damage

通过对水电站地下厂房顶拱衬砌裂损进行分析探讨,揭示了衬砌裂损的机理,并指出开挖过程中,顺层岩体的顺层滑移产生偏压是主要原因,提出了初步的修复措施,以提高地下厂房围岩岩层的抗弯刚度及强度。

Through the discussion and analysis of hydropower station underground workshop roof arch lining crack, reveals the mechanisms of arch lining crack and damage, and points out that the bias production of bedding sliding of the layer of rock is the main reasons, puts forward the preliminary repair measures to improve the stiffness and strength of underground powerhouse rock strata.