区域超前探查治理技术在推覆体下深部采煤底板灰岩水害防治中的应用

Application of Regional Advanced Exploration and Treatment Technology in Prevention and Control of Limestone Water Damage in Deep Coal Mining Floor under Nappe

新集二矿受巨厚推覆体影响,在地面三维地震无法有效查明煤层底板地层埋深和构造发育分布的情况下,充分分析矿区水文地质特征和突水主控因素,从创新防控理念出发,对传统的地面超前探查治理技术工艺进行集成创新,提出"选层-设计-施工-判断-治理-评价"一体化的综合工艺流程,在施工前、施工中、施工后3个方面有机的紧密结合,动态调整,以达到煤层底板防治水需求。结合工程实例应用,说明治理效果的有效性,在本区及国内其他类似条件地区具有良好的借鉴意义。

The Xinji No.2 mine is affected by the huge thickness of the nappe,and when the ground three-dimensional seismic cannot effectively identify the buried depth and structural development of the coal seam floor,fully analyze the hydrogeological characteristics of the mining area and the main controlling factors of water inrush,and innovative prevention and control proceeding from the concept,it integrates and innovates the traditional ground advanced exploration and treatment technology,and proposes an integrated integrated process flow of "layer selection-design-construction-judgment-treatment-evaluation" in three aspects before,during and after construction.Closely organically and dynamically adjusted to meet the water demand of coal seam floor prevention and control.Combined with the application of engineering examples,it shows the effectiveness of the governance effect,which has good reference and promotion significance in this area and other areas with similar conditions in the country.