Tunnelling and Underground Space Technology最新文献

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Accounting for all the consequences of roadworks and streetworks design options: A scoping review 考虑道路工程和街道工程设计方案的所有后果：范围检讨

IF 6.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-02-05 DOI: 10.1016/j.tust.2026.107503

Kelwalee Jutipanya, Emma J.S. Ferranti, Christopher D.F. Rogers

引用次数: 0

Numerical assessment of plasticity development and energy expenditure of ant-like microtunnelling 类蚁微隧道塑性发育及能量消耗的数值评价

IF 6.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-02-05 DOI: 10.1016/j.tust.2026.107501

Meron Belachew, Yulong Liu, J. David Frost, Chloé Arson

引用次数: 0

Coupled thermo-mechanical simulation of lining cracking evolution and sealing system mechanical response in CAES lined rock caverns using finite-discrete element method 基于有限离散元法的CAES衬砌洞室衬砌开裂演化与密封系统力学响应的热-力耦合模拟

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-02-03 DOI: 10.1016/j.tust.2026.107460

Zhangxing Wang , Jiao Wang , Guanhua Sun , Shan Lin , Zhijun Liu , Hong Zheng

Lined rock caverns (LRCs) have become a key underground solution for large-scale compressed air energy storage (CAES). Clarifying the lining’s cracking pattern is a prerequisite for achieving coordinated performance with the sealing layer. This study proposes a coupled thermo-mechanical numerical framework based on the finite-discrete element method, which can effectively predict the random cracking process and crack evolution patterns of the lining. The accuracy and applicability of the proposed framework are verified through comparison with results from laboratory model tests. Finally, an engineering-scale model is constructed to investigate the effects of factors such as thermal effects, surrounding rock stiffness, and reinforcement parameters on the cracking characteristics and mechanical performance of the lining-sealing system. Results show that thermally induced circumferential compression offsets tensile stresses caused by internal pressure, reducing the maximum crack width and the steel liner stress amplitude by approximately 30%. Surrounding rock stiffness governs deformation compatibility: a higher elastic modulus suppresses plastic zone expansion, significantly reduces cracking, and improves the stress uniformity of the steel liner. Reinforcement factors (including reinforcement type, bar diameter, and spacing) have a limited effect on crack development and overall stress in the steel liner but influence the uniformity of stress in the sealing layer. Lining thickness exhibits a dual effect: thicker linings generate fewer but wider cracks, whereas thinner linings produce more but narrower cracks. The proposed framework provides a reliable theoretical and engineering basis for safety assessment and design optimization of LRCs in CAES applications.

衬砌岩洞室（lrc）已成为地下大规模压缩空气储能（CAES）的关键解决方案。澄清衬里的裂缝模式是实现与密封层协调性能的先决条件。本文提出了一种基于有限-离散元法的热-力耦合数值框架，可以有效地预测衬砌的随机开裂过程和裂纹演化模式。通过与实验室模型试验结果的比较，验证了所提框架的准确性和适用性。最后，建立了工程尺度模型，研究了热效应、围岩刚度、配筋参数等因素对衬砌-密封系统开裂特征和力学性能的影响。结果表明，热诱导的周向压缩抵消了由内压引起的拉应力，使最大裂纹宽度和钢衬应力幅值减小了约30%。围岩刚度支配变形相容性，较高的弹性模量抑制塑性区扩展，显著减少开裂，提高钢衬板的应力均匀性。配筋因素（包括配筋类型、钢筋直径和间距）对钢衬板的裂缝发展和整体应力影响有限，但会影响密封层应力的均匀性。衬里厚度表现出双重效应：衬里越厚，裂缝越少，但裂缝越宽；衬里越薄，裂缝越多，但裂缝越窄。所提出的框架为CAES应用中lrc的安全评估和设计优化提供了可靠的理论和工程依据。

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引用次数: 0

Calculation method for the mechanical performance of pipe–liner composite structure under multi-factor coupling effects 多因素耦合作用下管板复合结构力学性能的计算方法

IF 6.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-02-02 DOI: 10.1016/j.tust.2026.107486

Kangjian Yang, Yizhuang Lou, Jianwei Zhang, Hongyuan Fang, Shaochun Ma, Lei Shi, Kejie Zhai

引用次数: 0

Inertial-buoyant coupling and bi-directional flow effects on plume deflection in inclined tunnel fires under natural ventilation 自然通风条件下倾斜巷道火灾中惯性-浮力耦合和双向流动对烟羽偏转的影响

IF 6.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-02-02 DOI: 10.1016/j.tust.2026.107495

Tianhang Zhang, Lei Liu, Ke Wu, Shaorun Lin, Shiyi Wang, Xin Zhang

引用次数: 0

Physics-based digital twin system for artificial ground freezing: implementation in Bangkok tunnel rehabilitation 基于物理的人工冻土数字孪生系统：在曼谷隧道修复中的实施

IF 6.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-02-01 DOI: 10.1016/j.tust.2026.107469

Jie Zhou, Chengjun Liu, Chao Ban, Zhenming Shi, Hsinming Shang, Huade Zhou, Zeyao Li

引用次数: 0

Towards intelligent shield position control: A novel offline reinforcement learning framework with SCA-MOPCEO integration 面向智能盾构位置控制：基于SCA-MOPCEO集成的新型离线强化学习框架

IF 6.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-01-31 DOI: 10.1016/j.tust.2026.107468

Jiajie Zhen, Fengwen Lai, Ming Huang, Jim S. Shiau, Junjie Zheng, Zhen Hua

引用次数: 0

Instability analysis of circumferential and radial yielding structures in high in-situ stress soft rock tunnels based on polyurethane foam 基于聚氨酯泡沫的高地应力软岩巷道周向和径向屈服结构失稳分析

IF 6.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-01-31 DOI: 10.1016/j.tust.2025.107399

Jimeng Feng, Yifei Li, Jianchi Ma, Jiacheng Song, Bo Wang, Junru Zhang, Zhijian Yan, Hongtao Li

引用次数: 0

Responses and failure characteristics of rock containing a circular hole under multi-path coupled true triaxial loading and unloading 含圆孔岩石多径耦合真三轴加卸载响应及破坏特征

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-01-31 DOI: 10.1016/j.tust.2026.107498

Shaofeng Wang , Yin Xiao , Zilong Zhou , Shanyong Wang

A series of true triaxial loading and unloading tests were conducted on cubic rock specimens (100 mm × 100 mm × 100 mm) containing circular holes (30 mm) to comprehensively understand the influence of the hole orientation and stress path on the mechanical response and failure characteristics of rock subjected to excavation-induced disturbances. A true triaxial electrohydraulic servo testing system was improved to enable loading and unloading through an internal hole. The experiments included true triaxial compression tests with holes oriented in different directions; true triaxial internal hole loading and unloading tests with holes oriented in the most dangerous direction; and uniaxial compression, triaxial compression, and true triaxial internal and external hole loading–unloading tests with holes oriented in the safest direction. The study found that rock specimens with holes oriented along the intermediate principal stress direction were most prone to failure, whereas those with holes oriented along the maximum principal stress direction were the most stable. Under internal hole loading–unloading conditions, the rock exhibited enhanced plasticity during failure, and the severity of rock failure increased with increasing complexity of the stress path. When the hole is aligned along the minimum and intermediate principal stresses, rock failure near the hole wall progresses through four stages: microcrack initiation, crack propagation and local spalling, V-shaped notch formation, and complete failure. When the hole is aligned along the maximum principal stress, the process includes circumferential crack initiation, crack propagation, circumferential spalling failure, and hole fracturing failure.

通过对含圆孔（30 mm）的立方岩样（100 mm × 100 mm × 100 mm）进行真三轴加卸载试验，全面了解圆孔方向和应力路径对开挖扰动下岩石力学响应和破坏特征的影响。改进了真三轴电液伺服测试系统，使其能够通过内孔进行加载和卸载。实验包括不同方向孔洞的真三轴压缩试验；孔在最危险方向的真三轴内孔加载与卸载试验在最安全方向进行单轴压缩、三轴压缩和真三轴内外孔加载卸载试验。研究发现，沿中间主应力方向开孔的岩样最容易破坏，沿最大主应力方向开孔的岩样最稳定。在孔内加卸载条件下，岩石在破坏过程中表现出增强的塑性，并且随着应力路径复杂性的增加，岩石破坏的严重程度也随之增加。当孔沿最小主应力和中间主应力方向排列时，孔壁附近岩石破坏经历了微裂纹萌生、裂纹扩展和局部剥落、v形缺口形成和完全破坏四个阶段。当孔沿最大主应力方向排列时，该过程包括周向裂纹萌生、裂纹扩展、周向剥落破坏和孔破裂破坏。

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引用次数: 0

New cutting tool wear testing method for evaluating the influence of foam additive on plowing effect during shield TBM tunnelling in dense sandy gravel ground 评价泡沫添加剂对盾构掘进机在密砂砾石地层中掘进效果影响的刀具磨损试验新方法

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Tunnelling and Underground Space Technology

Pub Date : 2026-01-30 DOI: 10.1016/j.tust.2026.107499

Shao-Hui Tang , Xiao-Ping Zhang , Quan-Sheng Liu , Yu-Cong Pan , Wei-Qiang Xie , Xin-Fang Li , Hao-Jie Wang

When shield TBM tunnelling in abrasive sandy gravel ground, the higher ripper tooth plows the excavation surface, and then the lower scraper cuts the loose sandy gravel. The plowing effect refering to the mitigation of ripper tooth on scraper wear by loosing the dense sandy gravel is related to cutter height difference, inherent soil properties and foam additive parameters. However, the previous studies focus mainly on the former two factors, and the influence mechanisms of foam additives on the plowing effect are unclear. To fulfill the evaluation of plowing effect under various foam additive conditions, the WHU-SAT test apparatus that can continuously change cutter height difference was developed. The plowing coefficient was proposed to quantify the plowing effect of ripper tooth on dense sandy gravel ground. The variations in plowing coefficient, ripper tooth wear and modelled cutterhead torque with foam additive parameters were analyzed under various cutter height difference conditions. The influence mechanisms of solution concentration and injection ratio on plowing effect were revealed based on particle contact analysis. Cutter height difference and foam additive parameters were optimized for abrasive sandy gravel ground tunnelling. The results indicate that under the lubrication of active material on particle surface and the cushion of air bubble on particle contact, the plowing coefficient increases rapidly and then slowly with increasing solution concentration and injection ratio. The ripper tooth wear and modelled cutterhead torque decrease first rapidly and then slowly with increasing solution concentration, while they decrease first and then stabilize with increasing injection ratio. The optimal cutter height difference stabilizes with solution concentration, while it decreases first and then stabilizes with increasing injection ratio. The present study provides a reference for optimizing cutter height difference and foam additive parameters in abrasive sandy gravel ground tunnelling using shield TBM.

盾构掘进机在磨蚀砂砾地层中掘进时，上部的开刀齿刨开开挖面，下部的刮板切割松散的砂砾。通过松散密砂砾石来缓解撕裂齿对刮板磨损的犁削效果与刀高差、固有土性和泡沫添加剂参数有关。然而，以往的研究主要集中在前两个因素上，泡沫添加剂对耕地效果的影响机制尚不清楚。为评价不同泡沫添加剂条件下的耕地效果，研制了可连续改变刀具高度差的WHU-SAT试验装置。提出了用犁耕系数来量化开刀齿在密砂砾石地面上的犁耕效果。分析了不同刀具高度差条件下，泡沫添加剂参数对犁耕系数、撕裂齿磨损和模拟刀盘扭矩的影响。在颗粒接触分析的基础上，揭示了溶液浓度和注入比对犁耕效果的影响机理。对磨料砂砾地面隧道掘进的刀具高度差和泡沫添加剂参数进行了优化。结果表明：在活性物质对颗粒表面的润滑和颗粒接触处气泡的缓冲作用下，随着溶液浓度和注入比的增加，犁耕系数先增大后减慢；随着溶液浓度的增加，撕裂齿磨损和模拟刀盘扭矩先快速减小后缓慢减小，随着注入比的增加，先减小后趋于稳定。最佳切削高度差随溶液浓度的增加而趋于稳定，随注入比的增加先减小后稳定。本研究为盾构机砂砂砾石地面隧道掘进中刀具高度差和泡沫添加剂参数的优化提供了参考。

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