Peridynamics simulation method and application of hydro-mechanical coupling in fractured rock masses under dynamic disturbance

IF 3.5 2区计算机科学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Simulation Modelling Practice and Theory Pub Date : 2025-07-17 DOI:10.1016/j.simpat.2025.103187

Daosheng Zhang , Zongqing Zhou , Liping Li , Chenglu Gao , Minghao Li , Panpan Gai , Xiaochu Chen

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引用次数: 0

Abstract

The hydro-mechanical coupling failure mechanism of fractured rock masses under dynamic disturbance remains a significant challenge in the field of rock mechanics. To address this, a peridynamics-based simulation method is developed to scientifically characterise the water pressure variations within water-bearing fractures subjected to dynamic disturbance and the associated rock mass damage. First, a governing equation for fracture seepage in the peridynamics framework is proposed. Building on this, a three-dimensional hydro-mechanical coupled peridynamics model for fractured rock masses is established, based on the principle of effective stress. Next, the response characteristics of fracture water pressure under dynamic disturbance (e.g., blasting impact) are analysed, and a mathematical expression describing the relationship between fracture deformation and water pressure variation is formulated. A three-dimensional peridynamics simulation method is then constructed to capture the coupled stress–seepage behaviour of fractured rock masses under dynamic loading. The evolution of water pressure and the dynamic propagation mechanisms of water-bearing fractures are subsequently investigated. The accuracy of the proposed method is validated through a series of numerical examples. Finally, the method is utilised to assess the stability of the surrounding rock during subsea tunnel construction using the drilling–blasting method. The influence of dynamic disturbance on tunnel stability is revealed, offering valuable insights for the safe construction of subsea tunnels.

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动态扰动下裂隙岩体水-力耦合动力学模拟方法及应用

裂隙岩体在动力扰动作用下的水-力耦合破坏机制一直是岩石力学领域的一个重大挑战。为了解决这一问题，开发了一种基于周动力学的模拟方法，以科学地表征受动力扰动和伴生岩体破坏的含水裂缝内的水压变化。首先，提出了围动力框架下的裂缝渗流控制方程。在此基础上，基于有效应力原理，建立了裂隙岩体三维水-力耦合动力学模型。其次，分析了裂隙水压在动力扰动（如爆破冲击）作用下的响应特征，建立了裂隙变形与水压变化关系的数学表达式。在此基础上，建立了裂隙岩体在动力加载作用下的三维围动力模拟方法。在此基础上，研究了水压力的演化和含水裂缝的动态扩展机制。通过一系列数值算例验证了该方法的准确性。最后，将该方法应用于钻爆法海底隧道施工过程中围岩稳定性的评估。揭示了动力扰动对隧道稳定性的影响，为海底隧道的安全施工提供了有价值的见解。

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来源期刊

Simulation Modelling Practice and Theory 工程技术-计算机：跨学科应用

CiteScore

9.80

自引率

4.80%

发文量

142

审稿时长

21 days

期刊介绍： The journal Simulation Modelling Practice and Theory provides a forum for original, high-quality papers dealing with any aspect of systems simulation and modelling. The journal aims at being a reference and a powerful tool to all those professionally active and/or interested in the methods and applications of simulation. Submitted papers will be peer reviewed and must significantly contribute to modelling and simulation in general or use modelling and simulation in application areas. Paper submission is solicited on: • theoretical aspects of modelling and simulation including formal modelling, model-checking, random number generators, sensitivity analysis, variance reduction techniques, experimental design, meta-modelling, methods and algorithms for validation and verification, selection and comparison procedures etc.; • methodology and application of modelling and simulation in any area, including computer systems, networks, real-time and embedded systems, mobile and intelligent agents, manufacturing and transportation systems, management, engineering, biomedical engineering, economics, ecology and environment, education, transaction handling, etc.; • simulation languages and environments including those, specific to distributed computing, grid computing, high performance computers or computer networks, etc.; • distributed and real-time simulation, simulation interoperability; • tools for high performance computing simulation, including dedicated architectures and parallel computing.