摘要
帷幕灌浆技术是水利工程施工中重要的一项坝基处理措施,其目的是减少坝基的渗流量,降低坝底渗透压力,保证基础的渗透稳定。坝基帷幕灌浆属于隐蔽工程,施工过程较难控制。大渡河深溪沟水电站大坝基础廊道帷幕补强灌浆过程中遇到的部分孔段灌浆前涌水较大,灌浆后存在冒浆等情况采用一种循环灌浆的方法,对涌水较大的孔段处理效果较好。
Curtain grouting technology is an important dam foundation treatment measure in the construction of water conservancy project for the purpose of reducing the seepage flow of dam foundation, reducing the seepage pressure of dam bottom, and ensuring the seepage stability of foundation. The curtain grouting of dam foundation is a concealed project, and the construction process is difficult to control. In the process of curtain reinforcement grouting of dam foundation gallery of Shenxigou Hydropower Station in Dadu River, a circulating grouting method is adopted to deal with the problems of large water gushing before grouting and concrete leakage after grouting, which has good effect on large water gushing section.
作者
刘树国
梁金松
LIU Shuguo;LIANG Jinsong(Dadu River Pubugou General Hydropower Station, China Guodian, Hanyuan, Sichuan, 625304)
出处
《四川水力发电》
2019年第5期141-143,共3页
Sichuan Hydropower
关键词
水电站大坝
帷幕灌浆
涌水孔段
补强技术
dam of hydropower station
curtain grouting
water gushing section
reinforcement technology
