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本文论述了二滩水电站地下厂房的工程地质和水文地质条件,厂房轴线选择原则。就坝肩式地下厂房的三油洞室布置方案的围岩稳定、洞室群的间距以及支护等问题进行了论证。
This article discusses the geotechnical and hydrogeological conditions of the underground powerhouse of Ertan Hydropower Station and the principle of plant axis selection. The stability of surrounding rock, the spacing of caverns and the support of three oil caverns in the abutment of underground powerhouse are demonstrated.