黄润秋, 许强. 1999: 开挖过程的非线性理论分析. 工程地质学报, 7(1): 9-14.
    引用本文: 黄润秋, 许强. 1999: 开挖过程的非线性理论分析. 工程地质学报, 7(1): 9-14.
    Huang Runqiu, Xu Qiang. 1999: NONLINEAR THEORY ANALYSIS OF ROCKMASS MOVEMENT IN EXCAVATION. JOURNAL OF ENGINEERING GEOLOGY, 7(1): 9-14.
    Citation: Huang Runqiu, Xu Qiang. 1999: NONLINEAR THEORY ANALYSIS OF ROCKMASS MOVEMENT IN EXCAVATION. JOURNAL OF ENGINEERING GEOLOGY, 7(1): 9-14.

    开挖过程的非线性理论分析

    NONLINEAR THEORY ANALYSIS OF ROCKMASS MOVEMENT IN EXCAVATION

    • 摘要: 本文从岩土介质力学非线性和变形破坏过程自组织非线性的角度对开挖过程岩土体非线性行为进行了探讨。以此为依据,分析了岩土从微观破坏、滑移面形成、直至整体变形破坏全过程的自组织发生机理,在此基础上,建立了伴随开挖过程岩土体变形破坏的非线性动力学描述方程。

       

      Abstract: A lot of facts indicate that the deformation and failure processes of rockmass during surface and underground excavations are of different non linear behaviors.In this paper,an effect of media non linear haviours on deformation and stress of rockmass during excavation is discussed firstly and the numerical simulation method for excavation is modified.Further,a series of non linear self organization models for rockmass fracture and movement are established.They provide a systematic description of the whole process, from micro fracture ofrock elements, formation and evolution of slip surface, to entire failure. Based on the above discussed,a non linear dynamic equation for describing rockmassmovement during excavation is formulated.

       

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