[1]DU Mingrui,LI Chenguang,YAO Xupei,et al.A Review of In-situ Sprayed Lining Repair Technology for Structural Defects in Concrete Drainage Pipeline Networks[J].Journal of Zhengzhou University (Engineering Science),2027,48(XX):1-12.[doi:10.13705/j.issn.1671-6833.2027.01.003]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
48
Number of periods:
2027 XX
Page number:
1-12
Column:
Public date:
2027-12-10
- Title:
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A Review of In-situ Sprayed Lining Repair Technology for Structural Defects in Concrete Drainage Pipeline Networks
- Author(s):
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DU Mingrui1,2, LI Chenguang1, YAO Xupei1, FANG Hongyuan1,2, LI Bin1, ZHAO Peng3
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1. School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China 2. Yellow River Laboratory (Henan), Zhengzhou 450046, China 3. Zhengzhou Anyuan Engineering Technology Co., Ltd, Zhengzhou 450048, China
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- Keywords:
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Concrete Pipeline; Trenchless Rehabilitation; In-situ Spraying Method; Pipeline Damage Mechanism; Spray-applied Repair Material; Rehabilitation Mechanism
- CLC:
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TU992. 05TU991. 33
- DOI:
-
10.13705/j.issn.1671-6833.2027.01.003
- Abstract:
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Concrete pipelines in urban underground drainage networks are prone to structural defects such as leakage and cracking under combined chemical-biological corrosion and external loads, posing threats to public safety. Traditional excavation-based repair methods have significant drawbacks, making trenchless in-situ spray lining technology an important development direction. This paper reviews the damage mechanisms of concrete drainage pipes and the research progress on spray repair materials. It first analyzes the damage evolution laws under multi-factor actions and clarifies the performance requirements of repair materials for different types of damage. It then focuses on two major categories of spray repair materials: cement-based and polymer-based. Cement-based materials, through fiber toughening and microstructure optimization, exhibit excellent performance in structural reinforcement and crack control. Polymer materials, with their high elasticity, rapid curing, and superior corrosion resistance, offer unique advantages in seepage prevention and deformation accommodation. The paper further examines three key mechanisms—barrier isolation, interface bonding with synergistic deformation, and composite structure enhancement—demonstrating that the repair layer restores pipeline integrity and load-bearing capacity through physical isolation, stress redistribution, and overall structural improvement. Finally, considering trends in intelligent repair and green materials, the future development of repair materials is envisioned toward multi-functional synergy, self-healing capabilities, and intelligent construction, providing theoretical support and technical reference for enhancing the long-term safety of urban drainage networks.