带压开采防治水技术及研究方向

Water Prevention Technology for Mining with Water Pressure and Research Tendency

结合目前华北型煤田下组煤带压开采防治水技术现状,分析了下组煤带压开采的适用条件、安全标准和开采下限等主要技术问题。阐述了下组煤开采的主要防治水技术,水文地质条件勘察和采场综合探查是防治水工作的前提和关键;充分利用隔水层的天然阻水条件、适应充水或人工改造充水条件进行带压开采;利用底板突水监测预警技术进行预测预报。指出带压开采的研究方向:完善和发展安全评价体系;对带压条件进行分级;加强采场物探技术研究;确定开采下限及建立技术装备和安全保障体系。

This paper analyzed adaptable condition, safety standard and mining lower limit of mining low coal group with water pressure. It put forward that water prevention technology and hydrogeologic condition and comprehensive exploration for mining field were premise and key to water prevention. Mining with water pressure should be done by taking advantage of natural waterproof layer and artificially changing hydrology condition. Applying floor water-burst monitoring forecast technology to predicting water-burst. It also indicated research tendency of mining with water pressure. They are showed as follows. Perfecting and developing safety evaluation system ; grading water pressure conditions; developing geophysical prospecting technology; determining mining lower limit and constructing technical equipment and safety supporting system.