CAJ | 학술논문

以平遥二亩沟煤矿为例,分析了洪山泉域和井田的地质及水文地质条件,考虑对11号煤层带压区采取降压疏水措施,应用Visual Modflow软件建立水文地质概念模型和数学模型,预测其对洪山泉岩溶地下水的影响。研究结果显示,在井田开采突水系数为0．06~0．07 MPa/m的井田中东部地段布设1口疏水降压井,排水110 d后,模拟区最大水位降深约54 m,影响半径约2056．77 m,影响面积约13．29 km2,表明降压疏水会对洪山泉域岩溶地下水环境产生影响,可为煤矿开采与地下水资源的保护提供依据。
이평요이무구매광위례,분석료홍산천역화정전적지질급수문지질조건,고필대11호매층대압구채취강압소수조시,응용Visual Modflow연건건립수문지질개념모형화수학모형,예측기대홍산천암용지하수적영향。연구결과현시,재정전개채돌수계수위0．06~0．07 MPa/m적정전중동부지단포설1구소수강압정,배수110 d후,모의구최대수위강심약54 m,영향반경약2056．77 m,영향면적약13．29 km2,표명강압소수회대홍산천역암용지하수배경산생영향,가위매광개채여지하수자원적보호제공의거。
In this paper, analysis was made on the geological and hydro-geological conditions of Hongshan spring and mine field by taking Pingyao Ermugou Mine as an example, since the pressure reduction measure by water drainage was taken in the pressure zone of No. 11 coal seam, the conceptual and mathematical models of hydro-geology were established with Visual Modflow software and prediction was carried out on its influence upon the karst groundwater of Hongshan spring. The research results showed that when a water drainage pressure-reduction well was arranged in the eastern area of the mine field where the water inrush coefficient was in the range of 0. 06-0. 07 MPa/m, the maximum water level drawdown in the simulated area was about 54 m, the influence radius was about 2 056. 77 m and the affecting area was about 13. 29 km2 after water drainage for 110 d, this indicated that the pressure reduction by water drainage would affect the karst groundwater environment of Hongshan spring, which can provide basis for the coal mining and water resources protection.