刘桥一矿太灰岩溶含水层介质空间结构特征评价

Evaluation of Medium Spatial Structure Features of Karst Aquifer of Taiyuan Formation Limestone in Liuqiao No.1 Mine

基于刘桥一矿已完工注浆改造工作面底板成孔与注浆信息,在分析太原组灰岩岩性与岩溶发育特征的基础上,统计工作面底板太灰含水层出水量与注浆量,得出钻孔出水量与注浆量呈正相关关系。综合选取钻窝单孔最大出水量和单位体积注浆量两个指标,将太灰上段岩溶含水层岩溶结构划分为四种类型,并分析各结构类型在矿井内的分布状况,为进一步评价注浆效果和指导防治水工作提供基础。

Water yield and grouting quantity were obtained on the data of floor pore-forming and grouting of the working face where grouting reconstruction has finished in Liuqiao No. 1 Mine and on the analysis of Taiyuan formation limestone features and karst aquifer development features. The calculation obtains a positive correlation between the water yield and grouting quantity. The maximum water yield of a single pore and the grouting quantity of unit volume were selected to classify the karst aquifer into 4 types. The distribution of the different structure types could provide a basis for further evaluation of the grouting effect and water control.