摘要
某水电站具有土石坝高、泄洪流量大、地震烈度高、地质条件复杂等特点。电站坝址地处深山峡谷地区,坝址区断层、层间挤压错动带、节理裂隙等构造结构面发育,基础处理等技术问题比较复杂,大坝对基础的防渗性能要求高,防渗系统质量的优劣直接影响到大坝的稳定和安全运行。分析并探讨了采用改性环氧树脂化学灌浆材料以提高右坝肩f4、f12断层及影响区灌浆帷幕的防渗效果和耐久性,所取得的经验可供其他类似工程参考借鉴。
A hydropower station has the characteristics of high earth-rock dam,large flood discharge,high seismic intensity,and complicated geological conditions.The dam site is located in a deep mountain canyon area.Faults,interlayer compression dislocation zone and joint fissures,etc.are developed at the dam site,so such technical issues as foundation treatment,etc.are quite complicated.The dam has high requirements for the foundation's anti-seepage performance and the quality of anti-seepage system directly affects the stability and the safe operation of the dam.This paper analyzes and studies the application of modified epoxy resin chemical grouting materials to improve the anti-seepage performance and durability of the grouting curtain in the f4 and f12 faults of the right abutment and the affected area.
作者
干海勇
甘贻强
王宏刚
孙起军
GAN Haiyong;GAN Yiqiang;WANG Honggang;SUN Qijun(Sinohydro Bureau 5 Co., LTD, Chengdu, Sichuan, 610066;PowerChina Vibroflotation Construction Engineering Co., LTD, Beijing, 100048)
出处
《四川水力发电》
2021年第2期28-32,共5页
Sichuan Hydropower
关键词
两河口水电站
砂板岩
断层
化学灌浆
Lianghekou Hydropower Station
sand slate
fault
chemical grouting
