若羌河山口二级电站引水渠和泄水渠工程地质条件与评价研究

根据若羌河山口二级水电站引水渠和泄水渠的地质试验,确定了引水渠和泄水渠的工程地质条件。利用垂向渗漏公式计算得引水渠和泄水渠单位长度渗漏量分别为1.19×10-2m3/s和9.79×10-3m3/s,表明引水渠和泄水渠沿线属强透水性地层,渗漏损失较大,必须对其进行防渗措施处理,并且沿线土壤对混凝土结构无腐蚀性,对钢筋混凝土中钢筋无腐蚀性,同时引水和泄水均满足发电、居民生活用水和农田灌溉用水的水质要求。

Evaluation and Study on Engineering Geological Conditions of Diversion Canal and Drainage Canal of Ruoqiang River Secondary Hydropower Station

According to the geological tests for the diversion canal and drainage canal of Ruoqiang River secondary hydropower station,the engineering geological conditions of the canals are determined.Through the vertical leakage formula,it is obtained that the leakage quantity of the diversion canal and one of the drainage canal are respectively 1.19×10-2 m3/s and 9.79×10-3 m3/s,which shows that the formations along the canals are strong permeability and the leakage loss is larger,so the seepage control treating should be made for the formations.And the soil along the canal is non-corrosive to the concrete structures and the steels in the structures,while both the diversion water and drainage water could meet the needs of power generation,domestic water and irrigation water.