Construction technology for deep tunnels crossing superhigh-temperature fault zones with high water surges

IF 2.9 3区工程技术 Q2 ENGINEERING, CIVIL Frontiers of Structural and Civil Engineering Pub Date : 2024-07-26 DOI:10.1007/s11709-024-1054-2

Yong Zhao, Tingyu Zhu, Li Yu, Ming Lu

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Abstract

The harsh environment in tunnels with high geothermal temperatures and humidity can adversely impact machinery, personnel, and construction. The main causes of specific problems are the unknown mechanisms of local geothermal formation, inappropriate temperature control measures, and insufficient systematic safeguards. In this study, three work sections relating to a high geothermal tunnel are: the tunnel face, middle-of-tunnel section, and outside-of-tunnel section. A cooling strategy is proposed to offer technical support in achieving comprehensive cooling, overall as well as for each of the sections. First, a comprehensive geological survey explores the mechanism and exact location of the heat source. Secondly, grouting and centralized drainage measures are used to control the heat release of hot water. Enhanced ventilation, ice chillers and other applicable measures are used to control the ambient temperature. Finally, a monitoring and early warning system is established to prevent accidents. This cooling strategy has been applied in the field with good results.

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穿越高涌水量超高温断层带的深层隧道施工技术

隧道内地热温度高、湿度大，环境恶劣，会对机械、人员和施工造成不利影响。造成具体问题的主要原因是局部地热形成机制不明、温度控制措施不当以及系统保障不足。在本研究中，与高地热隧道相关的三个工作段分别是：隧道工作面、隧道中段和隧道外段。本研究提出了一种冷却策略，为实现整体和各段的全面冷却提供技术支持。首先，通过全面的地质勘测来探索热源的机制和确切位置。其次，采用灌浆和集中排水措施来控制热水的热量释放。采用加强通风、冰制冷机和其他适用措施来控制环境温度。最后，建立监测和预警系统，防止事故发生。这种冷却策略已在实地应用，并取得了良好的效果。

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来源期刊

Frontiers of Structural and Civil Engineering Engineering-Architecture

CiteScore

5.20

自引率

3.30%

发文量

734

期刊介绍： Frontiers of Structural and Civil Engineering is an international journal that publishes original research papers, review articles and case studies related to civil and structural engineering. Topics include but are not limited to the latest developments in building and bridge structures, geotechnical engineering, hydraulic engineering, coastal engineering, and transport engineering. Case studies that demonstrate the successful applications of cutting-edge research technologies are welcome. The journal also promotes and publishes interdisciplinary research and applications connecting civil engineering and other disciplines, such as bio-, info-, nano- and social sciences and technology. Manuscripts submitted for publication will be subject to a stringent peer review.