Optimization study on artificial ground freezing in elliptical tunnel construction: A comprehensive analysis of groundwater flow and thermodynamic parameters of soil

IF 6.7 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology Pub Date : 2025-05-31 DOI:10.1016/j.tust.2025.106774

Gyu-Hyun Go , Viet Dinh Le

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引用次数: 0

Abstract

Recently, there has been a growing interest in the use of Artificial Ground Freezing (AGF) to temporarily stabilize unstable ground at tunnel construction sites. Recognizing that the effectiveness of this method is significantly influenced by groundwater flow, it is crucial to conduct a sophisticated thermal-hydraulic coupling analysis to assess the potential adverse effects of groundwater flow in the artificial ground freezing process. This study establishes a numerical analysis model to evaluate the efficiency of AGF and proposes a novel design approach for freeze pipe layouts in elliptical tunnel face under conditions of excessive groundwater flow. These design concepts are implemented using a Gravitational Search Algorithm (GSA) and the COMSOL Multiphysics platform integrated with MATLAB. Furthermore, the study employs a constructed simulation model to analyze and assess the sensitivity of thermodynamic parameters concerning the efficiency of AGF under groundwater flow conditions. The findings contribute valuable insights to the field of tunnel construction and ground stabilization.

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椭圆隧道人工冻结施工优化研究：地下水流量和土壤热力参数综合分析

近年来，人们对在隧道施工现场使用人工冻结技术来暂时稳定不稳定的地面越来越感兴趣。由于该方法的有效性受到地下水流量的显著影响，因此进行复杂的热-水力耦合分析以评估地下水在人工冻结过程中的潜在不利影响至关重要。本文建立了一种评价AGF效率的数值分析模型，提出了一种超量地下水流条件下椭圆隧洞工作面冻结管布置的新设计方法。这些设计概念是使用重力搜索算法（GSA）和COMSOL多物理场平台集成MATLAB实现的。利用构建的模拟模型，分析和评价地下水渗流条件下影响AGF效率的热力学参数的敏感性。研究结果为隧道施工和地面稳定领域提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tunnelling and Underground Space Technology 工程技术-工程：土木

CiteScore

11.90

自引率

18.80%

发文量

454

审稿时长

10.8 months

期刊介绍： Tunnelling and Underground Space Technology is an international journal which publishes authoritative articles encompassing the development of innovative uses of underground space and the results of high quality research into improved, more cost-effective techniques for the planning, geo-investigation, design, construction, operation and maintenance of underground and earth-sheltered structures. The journal provides an effective vehicle for the improved worldwide exchange of information on developments in underground technology - and the experience gained from its use - and is strongly committed to publishing papers on the interdisciplinary aspects of creating, planning, and regulating underground space.