Research on the Collapse Column in Mining Working Face of Xieqiao Coal Mine
FANG Liang-cheng
ZHOU Ji-sheng
ZHANG Yan-xi
Abstract：Karstic collapse column refers to fissure cave collapse of matter in the thick layer of limestone of coal-bearing strata floor and the formation of overlying strata collapse , there are 2 karstic collapse columns in the eastern mine of Xieqiao coal mine , in order to ensure the safe passing of the No.13216 fully-mechanized coal mine face across 1# sink hole zone of influence , take mine transient electromagnetic method and Mine high-density electrical method to detect , excavation adopt the comprehensive detection technology of the combination of geophysical exploration and drilling exploration.Before actual mining ,the use of transportation gateway on 1#collapse column and its affected area adopt geophysical exploration after drilling technology , and the grouting reinforcement , so that the face of mining safety pass 1#subsided column zone of influence , multi-ple the production of coal resources 102 thousand tons , and create good economic benefits.
Keywords：Karst collapse columngeophysical explorationdrilling explorationeconomic benefit
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )