A comprehensive hybrid method for performance evaluation of a modified earth pressure balance shield machine in mixed strata

IF 3.7 2区工程技术 Q3 ENGINEERING, ENVIRONMENTAL

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-26 DOI:10.1007/s10064-024-03965-7

Yong Zeng, Yingjie Wei, Yuyou Yang, Mengyao Zhao

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引用次数: 0

Abstract

The complex geological conditions and operational performance of reconditioning modified earth pressure balance shield (M-EPBS) machines can critically influence tunnel excavation and construction safety. To address this, the study proposes a comprehensive framework for assessing the overall construction performance of reconditioned shield machines in compound strata. This framework employs fuzzy mathematics theory and analytic hierarchy process (F-AHP) to construct a three-level multi-factor evaluation matrix and establish comprehensive membership function relationships. We then quantify the weight of each factor and the interval membership function, followed by a relative superiority analysis of the interval matrix. A shield tunneling case study is utilized to evaluate the model, focusing on layer conditions, shield design parameters, and shield construction parameters. The study also addresses the challenges encountered during the tunneling process and the corresponding countermeasures. The results reveal that the proposed framework is effective, user-friendly, and adaptable for selecting and evaluating M-EPBS machines in compound strata. This framework provides a novel approach for feasibility assessments, safe operation management, pre-shield design evaluations, and post-shield construction verifications.

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混合地层中改良土压平衡盾构机性能评估的综合混合方法

改造后的土压平衡盾构机（M-EPBS）的复杂地质条件和运行性能会严重影响隧道挖掘和施工安全。为此，本研究提出了一个综合框架，用于评估修复后的盾构机在复合地层中的整体施工性能。该框架采用模糊数学理论和层次分析法（F-AHP）构建了一个三级多因素评价矩阵，并建立了全面的成员函数关系。然后，我们量化了每个因素的权重和区间成员函数，接着对区间矩阵进行了相对优劣分析。利用盾构隧道案例研究对模型进行评估，重点关注地层条件、盾构设计参数和盾构施工参数。研究还探讨了隧道挖掘过程中遇到的挑战以及相应的对策。研究结果表明，所提出的框架对于在复合地层中选择和评估 M-EPBS 机器是有效的、用户友好的和适应性强的。该框架为可行性评估、安全运营管理、盾构前设计评估和盾构后施工验证提供了一种新方法。

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

Bulletin of Engineering Geology and the Environment 工程技术-地球科学综合

CiteScore

7.10

自引率

11.90%

发文量

445

审稿时长

4.1 months

期刊介绍： Engineering geology is defined in the statutes of the IAEG as the science devoted to the investigation, study and solution of engineering and environmental problems which may arise as the result of the interaction between geology and the works or activities of man, as well as of the prediction of and development of measures for the prevention or remediation of geological hazards. Engineering geology embraces: • the applications/implications of the geomorphology, structural geology, and hydrogeological conditions of geological formations; • the characterisation of the mineralogical, physico-geomechanical, chemical and hydraulic properties of all earth materials involved in construction, resource recovery and environmental change; • the assessment of the mechanical and hydrological behaviour of soil and rock masses; • the prediction of changes to the above properties with time; • the determination of the parameters to be considered in the stability analysis of engineering works and earth masses.