【摘要】 溧阳抽水蓄能电站地下厂房洞室群围岩条件较差,且地下水十分丰富。为有效降低地下水对地下厂房洞室群施工期和运行期安全的影响,采取"以排为主,抽排与自流相结合"的防渗排水系统设计。排水廊道布置采取一洞多用,排水廊道先行施工,以为有效降低地下厂房洞室群的地下水水位、提前施工预应力锚索和预埋监测仪器等创造条件。更多还原

【Abstract】 The geological conditions of surrounding rock in the chamber group of underground powerhouse of Liyang Pumped-storage Power Station are unfavorable,and the groundwater is also abundant. In order to reduce the impact of groundwater on the safety of chamber group of underground powerhouse during construction and operation periods,the seepage prevention and drainage system is designed based on the idea of "drainage-based,pump drainage and gravity flow combined". Multi-purpose principle is adopted in the design of drainage gallery. The drainage gallery is first constructed,which lays a foundation for effectively reducing groundwater level,constructing pre-stressed anchor in advance and pre-embedding monitoring equipments.更多还原