谭云亮, 王泳嘉. 1996: 巷道围岩塑性状态判定分析方法. 工程地质学报, 4(2): 63-68.
    引用本文: 谭云亮, 王泳嘉. 1996: 巷道围岩塑性状态判定分析方法. 工程地质学报, 4(2): 63-68.
    Tan YunLiang, Wang Yongjia. 1996: METHOD FOR DETERMININGG PLASTIC STATE OF SURROUNDING ROCKS OF GATE. JOURNAL OF ENGINEERING GEOLOGY, 4(2): 63-68.
    Citation: Tan YunLiang, Wang Yongjia. 1996: METHOD FOR DETERMININGG PLASTIC STATE OF SURROUNDING ROCKS OF GATE. JOURNAL OF ENGINEERING GEOLOGY, 4(2): 63-68.

    巷道围岩塑性状态判定分析方法

    METHOD FOR DETERMININGG PLASTIC STATE OF SURROUNDING ROCKS OF GATE

    • 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。

       

      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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