Since the traditional model cannot sufficiently reflect the multifield coupling problem, this paper established an elastoplastic stress-seepage-damage analysis model considering the seepage field, stress field, and damage field. Simultaneously, the elastoplastic damage model involves many parameters and is difficult to determine. An inverse analysis program is compiled based on the differential evolution algorithm, and the surrounding rock damage parameters are inverted. Finally, the elastoplastic stress-seepage-damage coupling program and the damage parameter displacement back analysis program is compiled using C++ language. Then, the program is used to calculate the coupling problem of tunnel elastoplastic stress-seepage-damage. The results show that the proposed elastoplastic damage constitutive model can well describe the mechanical behavior of rock. The computational procedure can also simulate practical engineering problems, which can provide specific guidance for site construction.

中文翻译：

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水力－机械－损伤耦合分析及其在水电站引水隧洞中的应用

由于传统模型不能充分反映多场耦合问题，因此建立了考虑渗流场，应力场和破坏场的弹塑性应力-渗流-破坏分析模型。同时，弹塑性损伤模型涉及许多参数并且难以确定。基于差分演化算法，编制了反分析程序，对围岩破坏参数进行了反演。最后，用C ++语言编写了弹塑性应力-渗流-损伤耦合程序和损伤参数位移反分析程序。然后，该程序用于计算隧道弹塑性应力-渗流-损伤的耦合问题。结果表明，所提出的弹塑性损伤本构模型可以很好地描述岩石的力学行为。计算过程还可以模拟实际的工程问题，可以为现场施工提供具体指导。