Journal ArticleDOI
Mechanical behavior of concrete pipes with erosion voids and the effectiveness evaluation of the polyurethane grouting
TLDR
In this paper , a large-scale disaster testing system was used to evaluate the effectiveness of polyurethane (PU) grouting in rehabilitating erosion voids in concrete pipes of intact, with an erosion void at the invert.About:
This article is published in Tunnelling and Underground Space Technology.The article was published on 2022-11-01. It has received 10 citations till now. The article focuses on the topics: Void (composites) & Bending moment.read more
Citations
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Journal ArticleDOI
Impact of erosion voids and internal corrosion on concrete pipes under traffic loads
TL;DR: In this article , a parametric analysis was conducted to investigate the statistical relationship between the maximum principal stress on the pipe and the defect parameters, and a multiparameter formula was used to predict the maximum stress.
Journal ArticleDOI
Axial stresses in pressure pipe liners spanning joints with initial gap, opening as a result of differential ground movements
Ke Wei Zhai,Ian F. Moore +1 more
TL;DR: In this paper , a finite element model is established and evaluated against results from available solutions, and a parametric investigation is presented considering various values of initial gap width, liner diameter, internal fluid pressure, friction coefficient between the liner and host pipe, and the liner thickness.
Journal ArticleDOI
Failure experiment on CFRP-strengthened prestressed concrete cylinder pipe with broken wires
Ke Wei Zhai,Hongyuan Fang,Bin Li,Chengchao Guo,Kang Yang,Xueming Du,Mingrui Du,Niannian Wang +7 more
TL;DR: In this article , a retrofitting technique of using externally bonded carbon fiber reinforced polymer (CFRP) to repair PCCP was proposed, which is particularly useful when shutting down water is not possible.
Journal ArticleDOI
Trenchless rehabilitation of sewage pipelines from the perspective of the whole technology chain: A state-of-the-art review
Bin Li,Wei Yu,Yong-ping Xie,Hongyuan Fang,Xueming Du,Niannian Wang,Ke Wei Zhai,Dan Wang,Xian-peng Chen,Mingrui Du,Mingming Sun,Xiaohua Zhao +11 more
TL;DR: In this article , the authors provide a state-of-the-art review of trenchless rehabilitation technologies for sewage pipelines from the perspective of the whole technology chain, including cleaning technologies, rehabilitation technology decision methods, and trenchless technologies.
Journal ArticleDOI
A state-of-the-art review of concrete strength detection/monitoring methods: With special emphasis on PZT transducers
TL;DR: In this article , the authors provide a state-of-the-art review of the various detection/monitoring methods of concrete strength, including the core drilling method, pull-out method, pulling-off method, nail-shooting method, rebound method, ultrasonic pulse velocity (UPV), ultrasonic rebound method, electromechanical impedance (EMI) method, and wave propagation (WP) method.
References
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Journal ArticleDOI
Plastic-Damage Model for Cyclic Loading of Concrete Structures
Jeeho Lee,Gregory L. Fenves +1 more
TL;DR: In this paper, a new plastic-damage model for concrete subjected to cyclic loading is developed using the concepts of fracture-energy-based damage and stiffness degradation in continuum damage mechanics.
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Mechanical behavior of buried steel pipes crossing active strike-slip faults
TL;DR: In this article, the mechanical behavior of buried steel pipes crossing active strike-slip tectonic faults is investigated. And the results from the present study can be used for the development of performance-based design methodologies for buried steel pipelines.
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Effectiveness of using fibre-reinforced polymer composites for underwater steel pipeline repairs
TL;DR: In this article, a comprehensive review on the use of fiber-reinforced polymer composites for in-air, underground and underwater pipeline repairs is presented, and critical aspects of technical challenges, benefits and shortcomings in determining the feasibility and suitability for repair systems involving the composites are also presented.
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Evaluation of side wall friction for a buried pipe testing facility
TL;DR: In this article, a small scale investigation using a direct shear apparatus examined the effectiveness of different configurations of unlubricated and lubricated geosynthetic treatments intended to reduce the boundary friction mobilized between a steel-soil interface.
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The mechanical behaviour of drainage pipeline under traffic load before and after polymer grouting trenchless repairing
TL;DR: In this article, the authors investigated the mechanical behavior of drainage pipeline under traffic load before and after polymer grouting and cement grouting trenchless repairing through three-dimensional finite element method (FEM).