Interaction analysis of subway construction and groundwater seepage in spring area using PD-FVM coupling method

IF 2.8 3区工程技术 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS

Computational Particle Mechanics Pub Date : 2024-12-04 DOI:10.1007/s40571-024-00874-0

Zongqing Zhou, Daosheng Zhang, Chenglu Gao, Zhuohui Li, Xu Guo, Chengshun Shang, Penghui Wang

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引用次数: 0

Abstract

The impact of subway tunnel construction on the surrounding strata and hydrogeological environment presents a multifaceted challenge. Jinan is characterized by numerous springs and rich karst groundwater resources, contributing to an exceptionally intricate urban groundwater system. This study establishes an efficient computational framework combining peridynamics (PD) and the finite volume method (FVM) to simulate the excavation of engineering-scale subway tunnels under fluid–solid coupling conditions. The modeling and analysis process of the PD-FVM coupling method is demonstrated using the Jinan Metro as a case study. Considering factors such as groundwater levels, tunnel buried depths, and geological conditions (presence of fractures), 20 sets of numerical simulation cases are designed. Engineering-scale simulations of groundwater seepage and the evolution of surrounding rock damage and deformation during subway construction in the spring area are conducted. The study culminates in an analysis of the interaction between subway construction and groundwater seepage, providing essential theoretical support for rail transit route design and the safety of tunnel engineering projects.

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基于PD-FVM耦合法的春季地区地铁施工与地下水渗流相互作用分析

地铁隧道建设对周边地层和水文地质环境的影响是一个多方面的挑战。济南泉水众多，岩溶地下水资源丰富，城市地下水系统异常复杂。本研究建立了一种结合周动力学（PD）和有限体积法（FVM）的高效计算框架，用于模拟流固耦合条件下的工程规模地铁隧道开挖。以济南地铁为例，阐述了PD-FVM耦合方法的建模与分析过程。考虑地下水位、隧道埋深、地质条件（有无裂缝）等因素，设计了20组数值模拟案例。对春区地铁施工过程中地下水渗流及围岩损伤变形演化进行了工程尺度模拟。本研究最终分析了地铁建设与地下水渗流的相互作用，为轨道交通线路设计和隧道工程安全提供了重要的理论支持。

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来源期刊

Computational Particle Mechanics Mathematics-Computational Mathematics

CiteScore

5.70

自引率

9.10%

发文量

期刊介绍： GENERAL OBJECTIVES: Computational Particle Mechanics (CPM) is a quarterly journal with the goal of publishing full-length original articles addressing the modeling and simulation of systems involving particles and particle methods. The goal is to enhance communication among researchers in the applied sciences who use "particles'''' in one form or another in their research. SPECIFIC OBJECTIVES: Particle-based materials and numerical methods have become wide-spread in the natural and applied sciences, engineering, biology. The term "particle methods/mechanics'''' has now come to imply several different things to researchers in the 21st century, including: (a) Particles as a physical unit in granular media, particulate ﬂows, plasmas, swarms, etc., (b) Particles representing material phases in continua at the meso-, micro-and nano-scale and (c) Particles as a discretization unit in continua and discontinua in numerical methods such as Discrete Element Methods (DEM), Particle Finite Element Methods (PFEM), Molecular Dynamics (MD), and Smoothed Particle Hydrodynamics (SPH), to name a few.