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ResearchandApplicationofHighDurabilityIntelligentShieldTunnelConcreteSegment

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Registration number:G20250617

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Key words: Infrastructure health monitoring concrete pipe segments

Green classification:

Publisher:管理人员

Release time:2025-08-09 08:56:43.0

  • Essential information
Name of achievement: ResearchandApplicationofHighDurabilityIntelligentShieldTunnelConcreteSegment
Result registration number: G20250617 Subject classification:
Green classification: Item keywords: Infrastructure health monitoring   concrete pipe segments      
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Tongji University

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Mode of cooperation: Outcome Information:
Countries/regions: China Intellectual property rights:
Introduction: Click to view
Long-term health monitoring of major infrastructure is an important topic in the field of civil engineering. Domestic and international requirements for tunnel lining segment materials have become higher, such as: being able to withstand long-term action of earth pressure and water pressure to maintain the tunnel space; having sufficient impermeability, crack resistance, and durability; possessing enough stiffness and strength to bear the thrust from shield jacks and one-time loads from backfilling behind the lining; having good fire resistance; being easy to assemble with small assembly errors; considering seismic conditions and states during construction, ensuring safety relative to temporary load effects; and having a comprehensive state monitoring and evaluation system. The research on high-durability intelligent shield tunnel concrete lining segments carried out in this project is based on the current severe situation of tunnel engineering and also on the needs of durability and health monitoring for important infrastructure projects. Based on the current development status of tunnel segments both domestically and internationally, and on existing research foundations, this study aims to develop new practical lining segment materials that integrate anti-seepage, crack resistance, durability, and sensitivity. The research content includes: determining comprehensive index parameters for concrete lining segment crack resistance; predicting technology for the durability of concrete under corrosive environments and stress conditions; optimizing the formulation technology for high-durability tunnel concrete segment materials; and integrating technology for monitoring and assessing the temperature, stress conditions, and durability of tunnel concrete segments. The research results are of significant theoretical importance and engineering application value in enhancing China's high-tech reserves in important infrastructure construction fields and meeting the safety and durability requirements of critical engineering structures.
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