化学灌浆在特殊地质中坝基防渗效果的试验研究

Application of chemical grouting in seepage preventionof dam foundation

大坝作为水利工程的主体结构,其稳定性与整体性关系着整个水利工程能否安全运行。从水利工程运行实践现状来看,很多水利大坝的基础都会受各种因素的影响而出现不同程度的渗漏现象。在大坝的防渗和地基加固施工技术中,化学灌浆施工技术是一种较为先进的防渗处理技术。以新疆大西沟水库工程的大坝基础防渗试验为例,使用不同化学灌浆材料进行灌浆试验比较,观察其防渗效果,以确定较为合理的灌浆材料,以供工程参考使用。

As the main structure of the hydraulic engineering, the stability and integrity of the dam are related to the safe operation of the whole hydraulic project.According to the current situation of the water conservancy project operation,the foundation of many water conservancy dams will be affected by various factors,and the degree of leakage will occur.In the construction technology of seepage prevention and reinforcement of dam foundation,chemical grouting construction technology is a kind of advanced anti-seepage treatment technology. The seepage of dam foundation test of Xinjiang Daxigou reservoir project as an example,comparing the grout- ing test using different chemical grouting material, to observe the effect of seepage, to determine the reasonable grouting materials,to provide a reference for engineering use.