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采空区是地下矿藏被开采出后留下的地下空洞区,从采空区顶板岩层向上形成垮落带、裂隙带和弯曲带“三带”破坏形式。南水北调中线工程禹州长葛段穿越禹州4处煤矿采空区,该段工程采用灌浆地基处理,对灌浆材料、灌浆方式、验收标准进行了研究,结合结构设计优化,全过程安全监测等综合措施,确保工程安全稳定运行,对类似采空区处理和采空区水利工程建设具有一定的参考价值。
The goaf is an underground cavity left after the underground mineral is mined. The caving zone, the fissure zone and the bending zone are formed upwards from the top rock strata of the goaf. The section of Yuzhou Changge of the mid-route of South-to-North Water Diversion Project passes through 4 coal mined-out areas in Yuzhou. The project uses grouting foundation treatment to study the grouting material, grouting method and acceptance criteria. Combining with structural design optimization and overall process safety monitoring, , To ensure the safe and stable operation of the project and has certain reference value for the similar goaf treatment and the construction of water conservancy projects in the goaf.