| 莒山煤矿动压影响下大巷底鼓控制技术应用 |
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| 引用本文： | 焦彪. 莒山煤矿动压影响下大巷底鼓控制技术应用[J]. 江西煤炭科技, 2022, 0(1): 4-7,10. DOI: 10.3969/j.issn.1006-2572.2022.01.003 |
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| 作者姓名： | 焦彪 |
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| 作者单位： | 兰花集团莒山煤矿有限公司,山西 泽州 048200 |
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| 摘 要： | 为解决莒山煤矿9#煤层大巷在回采动压影响下底鼓变形严重的难题,以进风大巷返修为工程背景,借鉴相似地质条件下的相关研究成果提出多个备选方案,通过数值模拟研究不同支护方案条件下大巷围岩破坏特征,确定最佳返修支护方案:锚网喷+U型钢反底拱+锚注支护,返修后的进风大巷顶底板最大相对移近量为162～298 mm,有效控制了大巷底...
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| 关 键 词： | 进风大巷 底鼓控制 数值模拟 注浆锚杆 |
Application of floor heave control technology under dynamic pressure in Jushan Coal Mine |
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| Jiao Biao. Application of floor heave control technology under dynamic pressure in Jushan Coal Mine[J]. Jiangxi Coal Science & Technology, 2022, 0(1): 4-7,10. DOI: 10.3969/j.issn.1006-2572.2022.01.003 |
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| Authors: | Jiao Biao |
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| Affiliation: | (Orchid Group Jushan Coal Mine C j LTD.,Zezhou 048200,Shanxi,China) |
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| Abstract: | To solve junan mountain coal mine 9#coal seam in alleys in extraction of severe floor heave deformation under the influence of dynamic pressure problem, into the wind alleys repair as engineering background, related research achievements of reference to the similar geological conditions put forward multiple alternative, through numerical simulation research under the condition of different support scheme alleys failure characteristics of surrounding rock and supporting schemes to determine the best repair: The maximum relative movement of roof and floor of large inlet roadway after repair is 162 ~ 298 mm, which effectively controls the excessive floor heave and surrounding rock damage of large inlet roadway. The repair and reinforcement scheme has a certain promotion and reference significance. |
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| Keywords: | Air inlet main alley Floor heave control Numerical simulation Bolt grouting |
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