白布井田充水因素分析

Baibu Minefield Water Filling Factor Analysis

通过对白布井田水文地质资料的分析研究,认为浅部6上、6中、7号煤层开采时充水水源为顶板进水的长兴组岩溶裂隙水、含煤地层裂隙水、滑坡体中的孔隙水;充水通道主要为裂隙、岩溶管道、导水裂隙带、断层带。井田深部低于白布河水位的各煤层除受上述充水水源影响外,也受河水的影响。开采东北、东南角深部28、33号煤层时,局部还会受下部茅口组岩溶水充水水源的影响。井田属以裂隙、孔隙含水层充水为主,水文地质条件中等的煤矿床。

After analyzed the hydrogeological data from Baibu minefield, considered that the water filling sources of shallow part Nos. 6u, 6m and 7 coal seams＇ roofs are Changxing Formation karstic fissure water, coal-beating strata fissure water, and pore water in landslide masses; water filling channels are fissures, karstic conduits, water conducted fractures and faulted zones. Coal seams in deep part of the minefield below the Baibu River water level except above mentioned sources still have impacts from the river. During the mining of deep part Nos.28 and 33 coal seams at northeast and southeast corners, will be impacted by Maokou Formation karstic water filling source underneath locally. The minefield belongs to moderating hydrogeological condition coal deposit with mainly water filling fissure and pore aquifers.