柔模混凝土沿空留巷过陷落柱支护技术研究
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摘要
针对陷落柱影响段综放沿空留巷施工困难、成巷效果差等问题,以霍尔辛赫煤矿3605综放工作面柔模混凝土沿空留巷为例,介绍陷落柱段巷内异型柔模混凝土墙体支护、底板注浆等技术。工程实践表明:在陷落柱影响段柔模混凝土沿空留巷施工速度快,留巷效果好,采空区封堵严实,具有良好的经济效益和应用前景。
In view of the construction difficulties and poor effect of gob-side entry retaining under the influence of collapse column,the 3605 fully mechanized caving face of Holzer coal mine are introduced as an example,which used gob-side entry retaining with flexible formwork concrete wall support and floor grouting technology in the collapse column section. The engineering practice shows that,construction speed in the collapse column area is fast,the entry-retaining and goaf blocking effect is favorable,the technology is of good economic benefits and application prospect.
In view of the construction difficulties and poor effect of gob-side entry retaining under the influence of collapse column,the 3605 fully mechanized caving face of Holzer coal mine are introduced as an example,which used gob-side entry retaining with flexible formwork concrete wall support and floor grouting technology in the collapse column section. The engineering practice shows that,construction speed in the collapse column area is fast,the entry-retaining and goaf blocking effect is favorable,the technology is of good economic benefits and application prospect.
引文
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[4]华心祝.我国沿空留巷支护技术发展现状及改进建议[J].煤炭科学技术,2006(12):78-81.
[5]崔亚仲.神东矿区快速沿空留巷技术研究及应用[J].煤炭科学技术,2014,42(1):129-133.
[6]王晓利,刘忠平,吴玉意.柔模支护原理与应用[R].西安,2012.
[7]黄辅强,孙国忠.平朔井工一矿导水陷落柱注浆加固治理技术[J].煤炭工程,2018,50(4):51-54.
[8]赵仁乐,张国朋,段会玲,等.断层破碎带冒顶巷道支护技术研究[J].煤炭工程,2018,50(3):42-46.