新疆小山口二级电站引水渠道工程设计

The diversion canal engineering design of Xinjiang Xiaoshankou secondary hydropower station

新疆小山口二级电站地处新疆严寒地区,引水渠道沿线地形起伏,高度变化较大。同时,工程区覆盖层多为砂砾石层,基岩多为泥岩、砂质泥岩等,覆盖层渗透性强,基岩具有较强的冻胀性和膨胀性。在进行渠道设计时,应考虑排水、防渗、保温及抗冻胀等工程措施,重点介绍了小山口二级电站引水渠道的工程设计内容。

The Xiaoshankou secondary hydropower station is located in the cold region in Xinjiang. The terrain fluctuation along the canal is big. The overburden is mostly sand gravel and the bed rocks are mudstone and sandy mudstone in the project area,the permeability of overburden is strong and the bed rocks have strong frost heave and expansion. So during the canal design,the engineering measures of drainage,anti-seepage,hot insulation and anti-expansion should be considered. This paper mainly introduces the diversion canal design content.