Authors used synthetic suvey method to find its range,height,water transmissivity etc..At the same time,this paper described the method to comprehensively control subsided column by grouting.

• 为指导巷道施工,消除水患威胁,采取了综合勘探方法查明陷落柱的范围、高度、导水性等情况,并阐述了注浆加固综合治理陷落柱的方法。