| 巷道围岩塑性状态判定分析方法 |
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| 引用本文： | 谭云亮,王泳嘉.巷道围岩塑性状态判定分析方法[J].工程地质学报(英文版),1996,4(2):63-68. |
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| 作者姓名： | 谭云亮 王泳嘉 |
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| 作者单位： | 1.山东矿业学院,泰安271019; |
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| 摘 要： | 本文依照莫尔-库仑屈服条件和非关联流动准则, 从地应力场及地下巷道开挖工程特点出发, 提出对围岩塑性屈服状态进行判定的方法。对无支护巷道和水泥锚杆支护巷道围岩进行有限元分析表明, 巷道开挖以后及时支设锚杆, 对出现塑性屈服的围岩起到了等效提高其刚度和强度的作用, 从而增加了围岩稳定性。与现场实测结果对比说明, 非关联流动准则比关联流动准则更符合实际。
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| 关 键 词： | 莫尔－库仑屈服条件 流动准则 有限元 塑性状态 锚杆 地下巷道 |
| 收稿时间： | 1995-02-15 |
METHOD FOR DETERMININGG PLASTIC STATE OF SURROUNDING ROCKS OF GATE |
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| Tan YunLiang.METHOD FOR DETERMININGG PLASTIC STATE OF SURROUNDING ROCKS OF GATE[J].Journal of Engineering Geology,1996,4(2):63-68. |
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| Authors: | Tan YunLiang |
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| Institution: | 1.Shanddong Institute of Mining and Technology, Taian 271019;2.Northeast China University, Shenyang 110006 |
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| Abstract: | According to Mohr-Coulomb yield condition and non-related flowing rule in consideration of the crustal stress field and engineering characteristics of underground gate,we propose a method for determing the plastic state of sorrounding rocks of gate. By FEM analysis of sourrounding rocks for the unsupported gate and bolt-supported gate,we got the result that to support the gate by bolt immediatly after digging the gate, it can improve the stiffness and strength equivalently of the surrounding rock. |
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| Keywords: | Morh-Coulomb yield condition Flowing rule FEM Plastic state Undergrounder rocks Bolt |
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