针对蒙陕接壤区存在水文地质条件不清、水害问题多发、水资源漏失严重等问题,通过分析区内呼吉尔特矿区4个矿井首采工作面顶板地质水文地质特征、回采过程中涌水量变化及差异性,查清了矿区煤炭开采初期扰动下的水文地质条件,结果表明:四个矿井首采工作面涌水量,均随着工作面回采呈逐渐增加趋势,其中葫芦素和巴彦高勒矿井首采工作面最大涌水量分别为645.0m3/h和494.0m3/h,且七里镇砂岩含水层不同区域存在富水性差异,导致涌水量的增加呈台阶式,波动性较大,与该区域七里镇砂岩含水层厚度较薄、富水性较弱的特征一致;门克庆和母杜柴登矿井首采工作面最大涌水量分别为1372.0m3/h和938.0m3/h,且七里镇砂岩含水层整体富水性较强、富水性较均一,涌水量的增加呈平稳增加态势,波动性较小,与该区域顶板七里镇砂岩含水层厚度较大、富水性较强的特征一致。

Aiming at the unclear hydrogeological conditions and frequent water disasters at border area between Inner Mongolia and Shaanxi, by analyzing the geological and hydrogeological characteristics of the roof of the first mining face of four mines in Hujierte mining area, and the change and difference of water inflow during mining. The results showed that: The water inflow of the first mining face of the four mines gradually increases with the mining of the working face. The maximum water inflow of the first mining face of Hulusu and Bayangol mines are 645. 0 m3 / h and 494. 0 m3 / h, respectively, and there are water abundance differences in different areas of Qilizhen sandstone aquifer, resulting in a stepped increase in water inflow with great fluctuation, which is consistent with the characteristics of thin sandstone aquifer and weak water yield in Qilizhen. The maximum water inflow of the first mining face of Menkeqing and Muduchaideng mines were 1372. 0 m3 / h and 938. 0 m3 / h, respectively, and the overall water yield of the Qilizhen sandstone aquifer is strong and uniform. The increase of water inflow shows a steady increase trend with small fluctuation, which is consistent with the characteristics of large thickness and strong water yield of Qilizhen sandstone aquifer on the roof of this area.