| U型棚锁腿支护与围岩关系数值分析及应用 |
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| 引用本文： | 王成,张农,韩昌良,李桂臣,钱德雨.U型棚锁腿支护与围岩关系数值分析及应用[J].采矿与安全工程学报,2011,28(2):209-213. |
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| 作者姓名： | 王成 张农 韩昌良 李桂臣 钱德雨 |
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| 作者单位： | 中国矿业大学煤炭资源与安全开采国家重点实验室,矿业工程学院,江苏,徐州,221008 |
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| 基金项目： | 国家“十一五”科技支撑计划项目(2007BAK28B04); 国家自然科学基金青年科学基金项目(50904064); 煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM09X03);煤炭资源与安全开采国家重点实验室开放基金项目(08KF10); 中国矿业大学青年科研基金项目(2008A004) |
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| 摘 要： | 随着煤矿开采深度的增加,巷道矿压显现加剧,巷道以主被动的组合支护为主,其中U型钢可缩支架被广泛采用,但是开放式的拱形结构不适应深井全断面来压的应力环境,U型棚腿部折断和倒棚现象时有发生.采用数值模拟软件FLAC5.0对锚杆护帮约束前后U型棚支架的载荷变化规律及对巷道围岩的稳定性影响进行深入研究和剖析,得出U型棚采用锚杆...
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| 关 键 词： | 深部巷道 架棚支护 支护体与围岩 锁腿护帮锚杆 数值模拟 |
Numerical Analysis and Application of the Relationship Between Surrounding Rock and U-Shaped Shed Under Leg Locking |
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| WANG Cheng,ZHANG Nong,HAN Chang-liang,LI Gui-chen,QIAN De-yu.Numerical Analysis and Application of the Relationship Between Surrounding Rock and U-Shaped Shed Under Leg Locking[J].Journal of Mining and Safety Engineering,2011,28(2):209-213. |
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| Authors: | WANG Cheng ZHANG Nong HAN Chang-liang LI Gui-chen QIAN De-yu |
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| Affiliation: | WANG Cheng,ZHANG Nong,HAN Chang-liang,LI Gui-chen,QIAN De-yu(State Key Laboratory of Coal Resources and Safe Mining,School of Mines,China University ofMining & Technology,Xuzhou,Jiangsu 221008,China) |
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| Abstract: | With the increase of mining depth,deep roadway mainly use the combination of the active support with the passive support method and the U-shaped shed is widely used in this method.However,its open arched structure is not suitable for stress environment of full section of ground pressure,making the legs of U-shaped shed broken down and shed frequently collapse.Aiming at this problem,we simulate the U-shaped shed's load distribution by the software FLAC5.0 before and after bolt locking leg and protecting side... |
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| Keywords: | deep roadway shed supporting support system and surrounding rock bolt of leg locking and side protecting numerical simulation |
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