小天都水电站气垫式调压室工程地质勘察研究

Research on air cushion surge chamber engineering geological prospecting of Xiaotiandu Hydropower Station

小天都水电站采用气垫式调压室方案,除了开展常规地质勘察工作外,着重进行了岩体质量及成洞条件研究、山体抗抬稳定性研究、地应力及围岩抗劈裂稳定性研究、岩体渗透性与围岩抗渗稳定性研究,总结出了在高山峡谷地区引水式电站建气垫式调压室的勘察工作方法与经验。

Xiaotiandu Hydropower Station adopts air cushion surge chamber plan. It not only develops conventional geological prospecting work, but also focuses on the research of rock quality and holes formation condition, mountain lifting resistance stability, ground stress and surrounding rock crack resistance stability, rock permeability and surrounding rock stability. Survey work methods and experience of building air cushion surge chamber on water diversion power station in mountain valley areas are summarized.