河南平禹煤电有限责任公司一矿在历年开采过程中，深受底板寒灰水威胁，曾因寒灰水发生突水导致淹井事故，为此采掘工程开掘前需制定底板寒灰水治理方案对寒灰水进行治理，以达到带压开掘条件。寒灰水治理方案中确定治理层位及治理深度是关键。本文通过对一矿煤层采后底板破坏带深度、底板有效隔水层厚度、底板水突水系数等进行计算研究，综合确定底板水治理深度、治理层位，为类似情况下寒灰水治理提供经验借鉴。

In the mining process over the years of No.1 mine in Henan Pingyu Coal and Electricity Co., Ltd., the safety mining was threatened by the Cambrian limestone water in the floor. The well flooding accident occurred because of Cambrian limestone water outburst. Therefore, before the excavation of the mining project, it was necessary to formulate a treatment plan for the Cambrian limestone water in the floor to treat the Cambrian limestone water to achieve the excavation conditions under pressure. It was the key to determine the treatment layer and depth in the Cambrian limestone water treatment scheme. In this paper, through the calculation and research on the depth of the floor failure zone, the thickness of the effective aquifuge and the water outburst coefficient of the floor water after the mining of the coal seam in No.1 mine, the depth and layer of the floor water treatment were comprehensively determined, which provided experience for the treatment of Cambrian limestone water under similar conditions.