| 轨道大巷底鼓机理分析及控制技术研究 |
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| 引用本文： | 李旭东. 轨道大巷底鼓机理分析及控制技术研究[J]. 山东煤炭科技, 2021, 39(2): 32-34,36 |
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| 作者姓名： | 李旭东 |
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| 作者单位： | 山西新景矿煤业有限责任公司,山西 阳泉045000 |
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| 摘 要： | 为解决中条带轨道巷底鼓量大的问题,根据地质条件分析巷道底鼓机理,确定巷道底板鼓起量大主要是由于围岩受到剪切变形、遇水膨胀和流变的影响,据此确定采用浅孔注浆+深孔锚索注浆的治理方案.方案实施后进行的围岩控制效果的分析表明:底鼓治理措施使用后,顶底板最大移近量为281 mm,符合设计要求.
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| 关 键 词： | 底鼓 加固 注浆 锚索 |
Mechanism Analysis and Control Technology Research of Floor Heave in Track Roadway |
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| Li Xudong. Mechanism Analysis and Control Technology Research of Floor Heave in Track Roadway[J]. Shandong Coal Science and Technology, 2021, 39(2): 32-34,36 |
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| Authors: | Li Xudong |
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| Affiliation: | (Shanxi Xinjing Coal Mining Co.,Ltd.,Shanxi Yangquan 045000) |
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| Abstract: | In order to solve the problem of large floor heave in the middle-strip track,the mechanism of the floor heave of the roadway is analyzed according to the geological conditions and it is determined that the large heave of the roadway floor is mainly due to the influence of shear deformation,water expansion and rheology of the surrounding rock.Based on this,the treatment plan of shallow hole grouting+deep hole anchor cable grouting is determined.The analysis of the surrounding rock control effect after the implementation of the scheme shows that:after the floor heave treatment measures are used,the maximum displacement of the roof and floor is 281 mm,which meets the design requirements. |
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| Keywords: | floor heave reinforcement grouting anchor cable |
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