| 全断面高预应力强力锚索支护技术及其在动压巷道中的应用 |
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| 引用本文： | 康红普,林健,吴拥政.全断面高预应力强力锚索支护技术及其在动压巷道中的应用[J].煤炭学报,2009,34(9):1153-1159. |
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| 作者姓名： | 康红普 林健 吴拥政 |
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| 作者单位： | 煤炭科学研究总院 开采设计研究分院，北京，100013 |
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| 基金项目： | 国家科技支撑计划项目(2008BAB36B07,2006BAB16B02) |
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| 摘 要： | 分析了目前煤矿锚索支护存在的问题，在高预应力强力支护理论的基础上，提出高预应力、长度较短的强力锚索，并全断面垂直岩面布置，是高地压、大变形巷道的有效支护方式.介绍了强力锚索及配套护表构件的力学性能，将强力锚索、拱形大托板及钢筋网组成全断面强力锚索支护系统，在锚索施加预应力的同时，给钢筋网也施加了较高的预应力，使钢筋网成为预应力支护系统的重要组成部分.在潞安矿业集团有限责任公司漳村煤矿一条与回采工作面对掘的、受2次强烈动压影响的巷道中，进行了全断面高预应力强力锚索支护技术试验，巷道支护状况发生本质变化.巷道两帮移近量比原支护方式降低90%，顶板离层几乎为0，围岩变形得到有效的控制.不仅解决了巷道支护难题，而且验证了支护理论的正确性.
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| 关 键 词： | 全断面锚索支护 高预应力 强力锚索 动压巷道 |
| 收稿时间： | 2009-05-04 |
High pretensioned stress and intensive cable bolting technology set in full section and application in entry affected by dynamic pressure |
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| KANG Hong-pu,LIN Jian,WU Yong-zheng.High pretensioned stress and intensive cable bolting technology set in full section and application in entry affected by dynamic pressure[J].Journal of China Coal Society,2009,34(9):1153-1159. |
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| Authors: | KANG Hong-pu LIN Jian WU Yong-zheng |
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| Affiliation: | Coal Mining and Designing Branch;China Coal Research Institute;Beijing 100013;China |
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| Abstract: | The present problems of cable bolting in coal mines were analyzed.Based on high pretensioned stress and intensive bolting theory,it was put forward that the high pretensioned stress and intensive cable bolting with shorter length,set in full section and vertical to surface of roadways is an effective supporting type to the roadways with high stress or large deformation.The mechanical properties of intensive cable bolts,plate and steel mesh were introduced.The full section intensive cable bolting system was ... |
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| Keywords: | cable bolting in full section high pretensioned stress intensive cable bolt entry affected by dynamic pressure |
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