高膨胀性软岩巷道支护技术研究
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摘要
文章介绍了峰峰集团万年矿三水平南翼回风下山整修加固工程,提出了4种巷道整修加固方案,通过对4种方案进行对比分析,最终决定采用"U型钢底拱梁+混凝土底拱碹+壁后注浆"联合支护,并对该方案的整修加固实施技术及支护参数进行了阐释,现场应用情况表明,该支护方式可以有效实现对高膨胀性软岩巷道的整修加固,彻底治理了围岩膨胀变形,为高膨胀性软岩巷道支护探索出了一种新方法。
The paper introduced the repair and reinforcement project of south wing air return dip in No. 3 Level of Wannian Mine of Fengfeng Group and provided the four repair and reinforcement plans of the mine roadway. With the comparison analysis on the four plans,a combined support with"U type steel floor arch beam + concrete floor arch liner + backfill grouting"was finally determined. The paper explained the repair and reinforcement implemented technology and support parameters of the plan. The site application conditions showed that the support technology could effectively realize the repair and reinforcement of the mine roadway,could completely control the swelling and deformation of the surrounding rock and could discover a new method to support the mine roadway with the high swelling soft rock.
The paper introduced the repair and reinforcement project of south wing air return dip in No. 3 Level of Wannian Mine of Fengfeng Group and provided the four repair and reinforcement plans of the mine roadway. With the comparison analysis on the four plans,a combined support with"U type steel floor arch beam + concrete floor arch liner + backfill grouting"was finally determined. The paper explained the repair and reinforcement implemented technology and support parameters of the plan. The site application conditions showed that the support technology could effectively realize the repair and reinforcement of the mine roadway,could completely control the swelling and deformation of the surrounding rock and could discover a new method to support the mine roadway with the high swelling soft rock.
引文
[1]张俊波,陈政平,周朝辉.膨胀型软岩巷道支护技术研究及应用[J].煤炭工程,2011,43(6):40-41.
[2]王兴,徐遵玉,邓东生.高应力软岩巷道锚注支护的数值分析[J].煤矿现代化,2010(5):82-83.
[3]艾克中.古汉山矿西大巷工钢圆对棚复合支护技术研究[J].煤炭工程,2009,41(7):41-43.
[4]刘玉卫,黄庆享.自稳隐形拱理论在软岩巷道围岩控制中的应用[J].煤炭工程,2011,43(9):81-83,86.
[5]耿清友.复合顶板软岩巷道锚注支护数值模拟研究[J].水力采煤与管道运输,2010(4):15-18.
[6]王国臣.PA-膨胀注浆锚杆支护研究与应用[J].煤炭工程,2006(12):38-40.
[7]刘新河,田灵涛,陈龙,等.薛村矿高应力软岩巷道支护数值模拟研究[J].中国煤炭,2009(3):4-7.
[2]王兴,徐遵玉,邓东生.高应力软岩巷道锚注支护的数值分析[J].煤矿现代化,2010(5):82-83.
[3]艾克中.古汉山矿西大巷工钢圆对棚复合支护技术研究[J].煤炭工程,2009,41(7):41-43.
[4]刘玉卫,黄庆享.自稳隐形拱理论在软岩巷道围岩控制中的应用[J].煤炭工程,2011,43(9):81-83,86.
[5]耿清友.复合顶板软岩巷道锚注支护数值模拟研究[J].水力采煤与管道运输,2010(4):15-18.
[6]王国臣.PA-膨胀注浆锚杆支护研究与应用[J].煤炭工程,2006(12):38-40.
[7]刘新河,田灵涛,陈龙,等.薛村矿高应力软岩巷道支护数值模拟研究[J].中国煤炭,2009(3):4-7.