导水裂隙带高度分析在综放开采中的应用

Application of Water Flowing Fractured Zone Height Analysis in Fully Mechanized Top Coal Caving Mining

本文结合山西省长治地区的A矿进行实例分析,根据导水裂隙带的形成原因及其影响因素,确定采用井下仰孔双端封堵测漏法进行观测。根据观测结果数据的分析,确定了导水裂隙带的高度及采裂比,并根据此最终给出了防水安全煤(岩)柱厚度计算值。

Combined with A mine of shanxi changzhi area and according to the forming causes and influence factors of water flowing fractured zone, the leak detection method of underground upward hole with two plugging is confirmed. In the light of the data analysis results, the height of water flowing fractured zone and fissure ratio is determined, and the pillar thickness calculate value of coal（rock） is also proposed.