空心包体应力计和松动圈测试仪在煤矿测量中的联合应用
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摘要
煤矿的安全开采十分重要,地应力资料和围岩松动圈的范围是煤矿开采的宝贵地质勘探资料,针对谢桥矿区西翼进风大巷,采用空心包体应力计和BA-Ⅱ型松动圈测试仪对巷道进行地应力测量和围岩松动圈测试。结果表明:该处是以水平应力为主导的高地应力场,巷道的松动圈范围为200~210 cm属大松动圈的Ⅳ-Ⅴ类围岩。针对此地应力场特点提出采用三心拱断面和锚、网、索、注的支护形式。
The safety of coal mining is very important. The geo-stress data and the range of loose circle of surrounding rock are valuable geological exploration data of coal mining. In this paper, the hollow inclusion stress meter is used to measure the in-situ stress of the intake roadway in the west wing of Xieqiao Mining Area, and the loose circle test of the roadway is carried out with the BA-II type loose moving coil tester. The results show that the site is in the high geo-stress field and is dominated by the horizontal crustal stress and the loose zone of the roadway is 200 cm to 210 cm, which belongs to the category IV-V surrounding rock. According to the characteristics of stress field in this area, three-core arch section and support form of anchor, mesh, cable and grouting are proposed.
The safety of coal mining is very important. The geo-stress data and the range of loose circle of surrounding rock are valuable geological exploration data of coal mining. In this paper, the hollow inclusion stress meter is used to measure the in-situ stress of the intake roadway in the west wing of Xieqiao Mining Area, and the loose circle test of the roadway is carried out with the BA-II type loose moving coil tester. The results show that the site is in the high geo-stress field and is dominated by the horizontal crustal stress and the loose zone of the roadway is 200 cm to 210 cm, which belongs to the category IV-V surrounding rock. According to the characteristics of stress field in this area, three-core arch section and support form of anchor, mesh, cable and grouting are proposed.
引文
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[5]张东明,白鑫,齐消寒,等.含层理岩石的AE特征分析及基于Kaiser效应的地应力测试研究[J].岩石力学与工程学报,2016,35(1):87-97.
[6]赵奎,闫道全,钟春晖,等.声发射测量地应力综合分析方法与实验验证[J].岩土工程学报,2012,34(8):1403-1411.
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[9]李远,王卓,乔兰,等.基于双温度补偿的瞬接续采型空心包体地应力测试技术研究[J].岩石力学与工程学报,2017,36(6):1479-1487.
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[2]董方庭,宋宏伟,郭志宏,等.巷道围岩松动圈支护理论[J].煤炭学报,1994,19(1):21-31.
[3]靖洪文,傅国彬,郭志宏.深井巷道围岩松动圈影响因素实测分析及控制技术研究[J].岩石力学与工程学报,1999,18(1):70-74.
[4]白金朋,彭华,马秀敏,等.深孔空心包体法地应力测量仪及其应用实例[J].岩石力学与工程学报,2013,32(5):902-908.
[5]张东明,白鑫,齐消寒,等.含层理岩石的AE特征分析及基于Kaiser效应的地应力测试研究[J].岩石力学与工程学报,2016,35(1):87-97.
[6]赵奎,闫道全,钟春晖,等.声发射测量地应力综合分析方法与实验验证[J].岩土工程学报,2012,34(8):1403-1411.
[7]王成虎,邢博瑞.原生裂隙水压致裂原地应力测量的理论与实践新进展[J].岩土力学,2017,38(5):1289.
[8]薛维培,姚直书,经来旺,等.应力解除法在巷道周围区域地应力测试中的应用[J].煤矿安全,2016,47(1):134-137.
[9]李远,王卓,乔兰,等.基于双温度补偿的瞬接续采型空心包体地应力测试技术研究[J].岩石力学与工程学报,2017,36(6):1479-1487.
[10]蔡美峰.地应力测量原理与技术[M].北京:科技出版社,2000.
[11]刘泉声,刘恺德.淮南矿区深部地应力场特征研究[J].岩土力学,2012,33(7):2089-2096.