宝珠寺水电站沉井群施工的主要技术特点

The Main Technical Characteristics for Construction of Open Caissons at Baozhusi Hydroelectric Project

宝珠寺水电站沉井群施工的主要技术特点有:(1)兼顾排水、出渣措施的沉井结构型式;(2)平行交叉法施工;(3)黄土铺盖防渗与井群大井点辅助排水法;(4)岩层中的开挖下沉措施;(5)沉井浅层纠偏的经验。本文对这些技术特点进行总结,提供类似工程施工时参考。

The main technical characterestics for construction of open caissons at Baozhusi includes: (1)open caisson structural style which takes account of both mucking and drainage ;(2)parallel and resection constru-tion method; (3)impervious loess blanket and large well-point dewatering method; (4)measures adopted in rock stratum excavation correcting of shallow open caisson. The paper summurises these technical characteristics and gives a references to the similar project construction.