采区上山受采动影响条件下围岩注浆加固实践
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摘要
针对矿井东翼采区上山巷道受采动影响时的维护难题,在现场调研及研究注浆加固机理的基础上,对五条上山巷道设计了针对性的表面喷浆及"浅部—深部"围岩耦合注浆加固方案,并进行了现场工程实践及后续的矿压观测,实现了正常期间尤其是采动影响条件下对巷道围岩的有效控制,实现了安全生产。
Aiming at the maintenance problem of the upper roadway in the east wing mining area affected by mining,on the basis of field investigation and study on the mechanism of grouting reinforcement, a specific surface grouting and "shallow-deep" surrounding rock coupling grouting reinforcement scheme are designed for five upper roadways,and field engineering practice and subsequent mine pressure observation are carried out. The effectiove control of surrounding rock in roodway is realized especially under the influence of mining in normal period, and the safa production is realized.
Aiming at the maintenance problem of the upper roadway in the east wing mining area affected by mining,on the basis of field investigation and study on the mechanism of grouting reinforcement, a specific surface grouting and "shallow-deep" surrounding rock coupling grouting reinforcement scheme are designed for five upper roadways,and field engineering practice and subsequent mine pressure observation are carried out. The effectiove control of surrounding rock in roodway is realized especially under the influence of mining in normal period, and the safa production is realized.
引文
[1]张江利,陶广美.松软煤层大采高工作面深孔注浆加固技术[J].煤矿安全,2018,49(9):175-178.
[2]韩杰.复杂应力条件下巷道加固技术研究[J].煤,2018,27(9):1-4;19.
[3]李宗泽,马明杰,熊富发,等.三软煤层巷道围岩注浆加固技术研究[J].煤炭技术,2018,37(6):66-68.
[4]刘立民,李延辉,闫旭,等.FZ-H800巷道注浆堵水加固水泥基外加剂试验研究[J].煤矿安全,2018,49(3):40-43.
[5]付玉凯.采动应力影响下巷道围岩变形破坏机理及注浆加固技术[J].煤矿开采,2017,22(6):34-39.
[6]朱家锐,毛明发,常伟华,等.注浆加固在强动压下软岩巷道支护中的作用[J].煤炭技术,2017,36(11):37-39.
[2]韩杰.复杂应力条件下巷道加固技术研究[J].煤,2018,27(9):1-4;19.
[3]李宗泽,马明杰,熊富发,等.三软煤层巷道围岩注浆加固技术研究[J].煤炭技术,2018,37(6):66-68.
[4]刘立民,李延辉,闫旭,等.FZ-H800巷道注浆堵水加固水泥基外加剂试验研究[J].煤矿安全,2018,49(3):40-43.
[5]付玉凯.采动应力影响下巷道围岩变形破坏机理及注浆加固技术[J].煤矿开采,2017,22(6):34-39.
[6]朱家锐,毛明发,常伟华,等.注浆加固在强动压下软岩巷道支护中的作用[J].煤炭技术,2017,36(11):37-39.