| 深井高应力巷道围岩变形及控制技术研究 |
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| 引用本文： | 黄玉东,付振江,付玉斌.深井高应力巷道围岩变形及控制技术研究[J].中州煤炭,2019,0(10):181-186. |
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| 作者姓名： | 黄玉东 付振江 付玉斌 |
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| 作者单位： | （河南能源化工集团 焦煤公司赵固一矿，河南 新乡 453634） |
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| 摘 要： | 为了解决赵固一矿2号煤层11271胶带巷围岩变形破坏严重的问题，通过现场监测数据分析地质力学参数和原支护方案围岩变形破坏规律，指出围岩强度低、赋存水文地质环境复杂、应力集中系数高、支护强度无法达到要求是巷道围岩变形破坏的主要原因。提出了强力一次支护理论，采用全长预应力锚固强力锚杆锚索控制技术提高顶板初期支护预应力和支护强度，加强两帮支护的支护方案。现场试验效果表明:无论是从锚杆索受力还是从巷道顶底板和两帮变形量来看，采用全长预应力锚固强帮控顶技术后，巷道变形得到有了效控制，而且保证了正常回采。
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| 关 键 词： | 深部高应力 变形破坏 全长预应力 围岩稳定性 |
Study on deformation and control technology of surrounding rock of high stress roadway in deep mine |
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| Huang Yudong,Fu Zhenjiang,Fu Yubin. Study on deformation and control technology of surrounding rock of high stress roadway in deep mine[J].Zhongzhou Coal,2019,0(10):181-186. |
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| Authors: | Huang Yudong Fu Zhenjiang Fu Yubin |
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| Affiliation: | （Zhaogu No.1 Coal Mine，Jiaozuo Coal Group Co.，Ltd.，Henan Energy and Chemical Industry Group，Xinxiang 453634，China） |
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| Abstract: | In order to solve the serious problem of deformation and failure of surrounding rock of No. 2 coal seam 11271 belt roadway in Zhaogu No. 1 Coal Mine，the geomechanical parameters and the deformation and failure laws of surrounding rock of the original support scheme were analyzed through on-site monitoring，it is pointed out that the main reasons for deformation and failure of roadway surrounding rock are low strength，complicated hydrogeological environment，high stress concentration coefficient and failure of support strength.The theory of strong primary support is put forward，the full-length pre-stressed anchor bolt and cable control technology is used to improve the pre-stress and support strength of the initial roof support，and to strengthen the support scheme of the two sides.Field test results show that the deformation of roadway can be effectively controlled and normal mining can be ensured by adopting full-length prestressing anchorage and strong roof control technology，whether from the force of anchor cables or from the deformation of roof and floor and two sides of roadway. |
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| Keywords: | ,deep high stress, deformation damage, full-length prestress, stability of surrounding rock |
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