| 弱胶结富水顶板留巷围岩变形特征与控制技术 |
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| 引用本文： | 朱先龙1,杨张杰2,钟会军1,赵 均1. 弱胶结富水顶板留巷围岩变形特征与控制技术[J]. 中州煤炭, 2019, 0(11): 167-170，174. DOI: 10.19389/j.cnki.1003-0506.2019.11.039 |
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| 作者姓名： | 朱先龙1 杨张杰2 钟会军1 赵 均1 |
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| 作者单位： | （1.中北煤化工有限公司 色连二矿，内蒙古 鄂尔多斯 017000； 2.安徽省煤炭科学研究院，安徽 合肥 230001） |
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| 摘 要： | 为解决弱胶结富水顶板双巷布置工作面留巷支护难题，以色连二矿12309辅助运输巷为工程背景，开展了弱胶结富水顶板锚杆及锚索锚固性能试验，提出了以提高锚索锚固力为基础的分步支护与加固技术。通过巷道变形观测，分析了留巷围岩的变形特征。结果表明，留巷受本工作面采动影响主要为滞后影响，其中围岩变形剧烈影响区为工作面采后 0～300 m 区段，当留巷受下一个工作面采动影响时，其影响范围及影响程度较上一个工作面大幅降低，说明以提高锚索锚固力为基础的分步支护与加固技术是比较适合弱胶结富水顶板留巷的支护方式。
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| 关 键 词： | 弱胶结富水顶板 留巷 分步支护 变形特征 围岩控制 |
Deformation characteristics and control technology of surrounding rock in retaining roadway with weak cemented water rich roof |
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| Zhu Xianlong1,Yang Zhangjie2,Zhong Huijun1,Zhao Jun1. Deformation characteristics and control technology of surrounding rock in retaining roadway with weak cemented water rich roof[J]. Zhongzhou Coal, 2019, 0(11): 167-170，174. DOI: 10.19389/j.cnki.1003-0506.2019.11.039 |
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| Authors: | Zhu Xianlong1 Yang Zhangjie2 Zhong Huijun1 Zhao Jun1 |
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| Affiliation: | （1.Selian No.2 Coal Mine，Zhongbei Coal Chemical Co.，Ltd.，Ordos 017000，China；2.Anhui Province Coal Science Research Institute，Hefei 230001，China） |
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| Abstract: | In order to solve the problem of retaining roadway in the double roadway arrangement of weak cemented water rich roof，taking 12309 auxiliary haulage roadway of Selian No.2 Mine as the engineering background，the performance test of weak cemented water-rich roof bolt and anchor cable anchorage was carried out，and the step-by-step support and reinforcement technology based on the improvement of anchor cable anchorage force was proposed.Through the deformation observation of the roadway，the deformation characteristics of the surrounding rock of the retaining roadway was analyzed.The results show that the influence of the mining in this working face on the retaining roadway is mainly the lag effect，and the area of the severe influence of the surrounding rock deformation is the 0~300 m section after the mining in the working face，when the retaining roadway is affected by the mining in the next working face，its influence range and degree are greatly reduced compared with that in the previous working face，which means to the step-by-step support and reinforcement technology based on the improvement of anchoring force of anchor cable is more suitable for retaining roadway with weak cemented water-rich roof. |
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| Keywords: | weakly cemented water-rich roof retained entry step-by-step support deformation characteristic surrounding rock control |
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