CAJ | 학술논문

为了解决保水与采煤这一矛盾，在论证了保水开采机理及其可行性后，神东矿区补连塔煤矿32202长壁工作面在正常回采过程中，根据浅埋煤层保水开采适用条件的初步分类研究成果，确定采高为5.3 m以下，并选用高强度液压支架和大功率高可靠性配套设备，保证工作面推进速度大于15 m/d。工作面回采后，地面水井水位观测显示，工作面中部10号水井水位，在采后25 d左右就渐趋稳定；靠近回风平巷的18号水井水位，在近1个月后才能够稳定。工作面回采稳定后，10号水井水位相对于地面升高0.66 m，18号水井水位相对于地面下降0.87 m，对第四系松散含水层影响较小，地表主要植被能够正常生长。工业性试验表明，以工作面快速推进为核心的长壁工作面保水开采技术在适宜地质条件下能够取得成功，为我国西部浅埋煤层矿区的生态环境建设和提高煤炭资源回收率提供了借鉴。
위료해결보수여채매저일모순，재론증료보수개채궤리급기가행성후，신동광구보련탑매광32202장벽공작면재정상회채과정중，근거천매매층보수개채괄용조건적초보분류연구성과，학정채고위5.3 m이하，병선용고강도액압지가화대공솔고가고성배투설비，보증공작면추진속도대우15 m/d。공작면회채후，지면수정수위관측현시，공작면중부10호수정수위，재채후25 d좌우취점추은정；고근회풍평항적18호수정수위，재근1개월후재능구은정。공작면회채은정후，10호수정수위상대우지면승고0.66 m，18호수정수위상대우지면하강0.87 m，대제사계송산함수층영향교소，지표주요식피능구정상생장。공업성시험표명，이공작면쾌속추진위핵심적장벽공작면보수개채기술재괄의지질조건하능구취득성공，위아국서부천매매층광구적생태배경건설화제고매탄자원회수솔제공료차감。
In order to solve the contradiction between the protection of water resources and mining, according to the classified research result of aquifer-protective mining (APM) conditions in shallow coal seam during normal mining process of 32202 longwall coalface of Bulianta mine in Shendong mining area, the mining height is determined to be below 5.3 m and large power of hydraulic support and large power and high reliability equipment are selected to ensure that advance rate of coalface is greater than 15 m/d after demonstrating APM mechanism and feasibility. After coalface mined, the water level ob-servation of ground well shows that the water level of No.10 observation well located in the middle of the coalface stabilizes gradually after about 25 days and relatively increases 0.66 m compared to the ground while the water level of No.18 observation well near the tail entry stabilizes after about a month and relatively reduces 0.87 m compared to the ground. The Quaternary loosened aquifer is less affected by the variation of water level and the main plant species of the surface can grow normally. The indus-trial test shows that aquifer-protective mining technology which features fast forwarding in the long wall coalface can be successfully applied in suitable geological conditions. What’s more, the research can provide reference for ecological environment construction and increases coal recovery rate for the shallow seam of mines with our country.