| 煤矿新型让压锚杆研究及应用 |
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| 引用本文： | 沈攀,陈新年,熊咸玉. 煤矿新型让压锚杆研究及应用[J]. 煤矿机械, 2020, 41(1): 130-132 |
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| 作者姓名： | 沈攀 陈新年 熊咸玉 |
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| 作者单位： | 西安科技大学建筑与土木工程学院,西安710054 |
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| 基金项目： | 国家自然科学基金项目(11872299) |
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| 摘 要： | 针对高应力软岩巷道围岩的大变形特征,设计了一种煤矿新型让压锚杆,主要运用钢套管内部约束热固性聚氨酯弹性材料来达到大变形让压的目的。试验表明,该锚杆与传统让压锚杆相比,具有让压距离大(为传统让压锚杆的3倍)、让压后承载性能稳定的显著特点。工程应用表明,该锚杆对深部高应力软岩巷道围岩稳定性能起到较好的控制作用。
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| 关 键 词： | 新型锚杆 让压作用 让压距离 试验研究 |
Research and Application of New Pressure-relief Anchor in Coal Mine |
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| Shen Pan,Chen Xinnian,Xiong Xianyu. Research and Application of New Pressure-relief Anchor in Coal Mine[J]. Coal Mine Machinery, 2020, 41(1): 130-132 |
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| Authors: | Shen Pan Chen Xinnian Xiong Xianyu |
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| Affiliation: | (College of Architecture and Civil Engineering,Xi’an University of Science and Technology,Xi’an 710054,China) |
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| Abstract: | Aiming at the large deformation characteristics of the surrounding rock of high stress soft rock roadway, a new pressure-relief anchor for coal mine was designed, which mainly used the steel casing inner restraint thermosetting polyurethane elastic material to play the role of large deformation pressure-relief. The test shows that compared with the traditional pressure-relief anchor,the anchor has a large pressure-relief distance, which is 3 times that of the traditional pressure-relief anchor, and the bearing performance after pressure-relief is stable. The engineering application shows that the anchor can better control the surrounding rock stability of deep high stress soft rock roadway. |
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| Keywords: | new anchor pressure-relief effect pressure-relief distance experimental research |
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