摘要
黄河尼那二期下游围堰及部分上游围堰采用高喷灌浆技术，成功地在夹河卵砾石中构筑了二期围堰防渗工程。在分析场地水文地质与工程地质条件的基础上，研究了围堰防渗工程的结构形式与工程布置，探讨了施工工艺和质量控制问题。
High-jet grouting was successfully applied for the anti-seepage works of the second stage downstream cofferdam and part of upstream cofferdam with a geological condition of river cobble and gravel in Nina Hydropower Station. Based on EHG analysis of hydrogeologic and engineering geologic conditions on site, the pattern and arrangement of high-jet grouting were investigated particularly, while the construction technology and quality control were explored in detail.
作者
刘鹏程
杨建平
赵玉杰
LIU Peng-cheng, YANG Jian-ping, ZHAO Yu-jie （Sino-hydro Foundation Engineering Corporation, Tianjin 301700, China）
关键词
高喷灌浆
防渗工程
围堰
尼那水电站
high-jet grouting
anti-seepage works
cofferdam
Nina hydropower station
