复杂地质条件下深井断层涌水综合治理技术
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摘要
为了有效治理某深井矿山因穿越断层造成的巷道涌水,保证矿山安全生产,采用探地雷达与钻探相结合的方法对涌水区域进行综合探测,对含水区域分布情况进行了研究,将巷道涌水区域自顶板向上依次划分为顶板空洞区、导水断裂带和富水破碎区。在此基础上,提出并实施了"帷幕注浆截流+浅部注浆加固+深部逐层引流注浆"的治理方案,先实施帷幕注浆构筑止浆层,再进行浅部注浆加固围岩,最后进行深部逐层引流并注浆。结果表明:该方案能有效封堵巷道断层涌水,减水率达99.2%,且治理后围岩完整性及稳定性较好,达到预期目标。
In order to effectively control the water inrush in the roadway caused by crossing faults in a deep mine and ensure the safe production of the mine, the integrated detection of the water inrush area is carried out by the method of ground penetrating radar and drilling, and the distribution of the water bearing area is studied. The water inrush area is divided into the roof cavity zone, water fissure zone and water rich fractured zone from the roof in turn. On this basis, the treatment scheme of "curtain grouting + shallow grouting reinforcement + deep drainage grouting layer by layer"was proposed and implemented. The curtain grouting was first implemented to construct the grouting wall, and then the shallow grouting was used to reinforce the surrounding rock, and the deep layer was finally drained and grouted layer by layer. The results show that the scheme can effectively seal the water inrush of the roadway, with the water reduction rate of 99.2%, and the integrity and stability of the surrounding rock after treatment is better, reaching the expected goal.
In order to effectively control the water inrush in the roadway caused by crossing faults in a deep mine and ensure the safe production of the mine, the integrated detection of the water inrush area is carried out by the method of ground penetrating radar and drilling, and the distribution of the water bearing area is studied. The water inrush area is divided into the roof cavity zone, water fissure zone and water rich fractured zone from the roof in turn. On this basis, the treatment scheme of "curtain grouting + shallow grouting reinforcement + deep drainage grouting layer by layer"was proposed and implemented. The curtain grouting was first implemented to construct the grouting wall, and then the shallow grouting was used to reinforce the surrounding rock, and the deep layer was finally drained and grouted layer by layer. The results show that the scheme can effectively seal the water inrush of the roadway, with the water reduction rate of 99.2%, and the integrity and stability of the surrounding rock after treatment is better, reaching the expected goal.
引文
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[2]卜昌森.煤矿水害探查、防治实用技术应用与展望[J].中国煤炭,2014(7):100-107.
[3]李海燕,王琦,江贝,等.深立井大水工作面注浆堵水技术[J].煤炭学报,2011,36(S2):444-448.
[4]刘国正,朱飞,赵文强.南水北调中线煤矿采空区注浆材料配比优化设计[J].人民长江,2016(13):66.
[5]张霄,李术才,张庆松,等.矿井高压裂隙涌水综合治理方法的现场试验[J].煤炭学报,2010,35(8):1314.
[6]郭正文,王光全,蔡宪贵.大型含导水构造与突水通道封堵技术[J].煤炭技术,2014,33(8):287-289.
[7]崔文龙.工作面预注浆在治理砂砾岩涌水中的应用[J].煤炭技术,2012,31(5):122-124.
[8]邢敏,胡耀青.矿井裂隙动水注浆堵水研究[J].煤炭技术,2014,33(10):280-283.
[9]王忠民,陈建营,程龙杰.向家坝水电站砂卵砾层边坡锚杆注浆试验[J].人民长江,2012,43(19):101-103.
[10]姬中奎.深部开采高水压条件下矿井注浆堵水技术[J].煤炭技术,2014,33(4):254-257.
[11]焦义.深部开采煤层底板突水控制技术研究[J].中国煤炭,2017,43(3):109-112.
[12]高春芳,李冲.大地压影响下出水钻孔封堵技术研究[J].中国煤炭,2014(9):102-103.
[13]赵宏海,李磊,秦福刚,等.裂隙岩体注浆模拟试验研究[J].人民长江,2012,43(1):30-32.
[14]陈剑华,王松波.袖阀管注浆法在松散地层防渗处理中的应用[J].人民长江,2009(12):41-42.
[15]刘国龙,刘晓琴,张明恩.南水北调中线矿区段采空区帷幕注浆试验研究[J].人民长江,2013,44(16):74-76.