亭子口水利枢纽红层基岩帷幕灌浆技术

Curtain Grouting Technologies for the Red Layer Foundation Rock in Tingzikou Water Control Project

亭子口水利枢纽红层基岩微裂隙岩体的可灌性、坝基软弱夹层、基岩缓倾是灌浆工作面临的3大难题。通过帷幕灌浆试验,得出了适合该工程的灌浆参数。在灌浆实施过程中,通过6级管控体系等管理方式,解决了灌浆劈裂等问题。从检查结果、监测数据可知,整个工程的帷幕灌浆质量达到了设计要求,可为红层地区高坝帷幕灌浆提供参考。

The groutability, weak interlayer and slight dipping of the red layer foundation rock in Tingzikou Water Control Project are the three problems of curtain grouting. The grouting parameters are achieved by curtain grouting tests, and the grout splitting and other issues are solved by a 6-level management system and other management ways during grouting implementation period. The inspections of grouting and the monitoring data shows that the quality of curtain grouting meets design requirements. This practice provides a reference for the curtain grouting of high dams in red layer region.