建井技术
建井技術
건정기술
2015年
2期
8-11,18
,共5页
采空区%涌水量%注浆%定向分支孔
採空區%湧水量%註漿%定嚮分支孔
채공구%용수량%주장%정향분지공
mining goaf%water inflow%grouting%directional branch borehole
新集二矿111305工作面采空区因受推覆体寒武系灰岩水补给，涌水量稳定在110 m3／h 左右，加重了矿井排水负荷，增加了排水费用。为此，决定通过地面注浆方式对采空区出水点进行封堵。该工作面采空区位于花家湖下，在湖面搭设大平台，安装“A”型钻塔，采用主孔与定向分支孔相结合的方式，成功完成注浆封堵施工，采空区涌水量降至20 m3／h ，注浆效果良好，经济效益明显。
新集二礦111305工作麵採空區因受推覆體寒武繫灰巖水補給，湧水量穩定在110 m3／h 左右，加重瞭礦井排水負荷，增加瞭排水費用。為此，決定通過地麵註漿方式對採空區齣水點進行封堵。該工作麵採空區位于花傢湖下，在湖麵搭設大平檯，安裝“A”型鑽塔，採用主孔與定嚮分支孔相結閤的方式，成功完成註漿封堵施工，採空區湧水量降至20 m3／h ，註漿效果良好，經濟效益明顯。
신집이광111305공작면채공구인수추복체한무계회암수보급，용수량은정재110 m3／h 좌우，가중료광정배수부하，증가료배수비용。위차，결정통과지면주장방식대채공구출수점진행봉도。해공작면채공구위우화가호하，재호면탑설대평태，안장“A”형찬탑，채용주공여정향분지공상결합적방식，성공완성주장봉도시공，채공구용수량강지20 m3／h ，주장효과량호，경제효익명현。
Due to a water supply from Cambrian limestone of the nappe ,the water inflow of the goaf in No.111305 coal mining face of Xinji No.2 Mine was stabilized around the 110 m3 /h ,would increase the mine water drainage load and would increase the water drainage cost. Therefore the surface grou‐ting method determined was applied to seal the water flowing point in the goaf. The goaf of the coal mining face was under Huajia Lake. A large platform was set up on the lake and an “A” type drilling tower was installed on the platform. A combined method with a main borehole and directional branch boreholes was applied and the grouting and sealing construction was successfully completed. The water inflow in the goaf was reduced to 20 m3 /h ,the grouting effect was excellent and the economic benefit was remarkable.
