东滩矿3煤顶板突水的影响因素

为了保证生产安全，分析了东滩矿3煤顶板发生的突水事故，并与大量地质钻孔资料（钻孔的岩性、冲洗液消耗量等）及水文地质资料进行对比，从而得出：构造、冒落带内岩性、含水层水文地质参数和发育高度、汇水条件以及矿山压力的影响等因素是东滩矿开采3煤顶板突水的主要影响因素．在现有水文地质资料缺乏的情况下，可以利用钻孔资料，如冲洗液消耗量在平面的分布等来估计、判断含水层的富水性或圈定3煤顶板含水层的富水区，最后提出了防治水的措施．

Influencing Factors on Water Burst in the Roof of No. 3 Seam in Dongtan Coal Mine

For safety production in coal mines,water bursting accidents happened in the roof of NO.3 coal seam of Dongtan mine were analyzed.The water bursting data were compared with the data from large numbers of drill holes(including the lithologic character and the consumption of flushing liquor,etc.) and the hydro-geological data.The results show that the geological structure feature,the lithologic character of the caving zone,the hydro-geological parameters and the developing height of the aquifer,water catchment condition and rock pressure etc.are main influencing factors of water inrush in the roof of No.3 seam of Dongtan mine.Being short of the hydro-geological materials,the consumption of flushing liquor in the geological log can be used to assess water-rich area or to circle the water-rich area.Finally,some countermeasures for preventing water from bursting are proposed.