Behavior of Structurally Defective Tunnel Lining and Effectiveness of Inner Reinforcement

Asakura, Toshihiro; Ando, Toyohiro; Omata, Fujio; Wakana, Kazuyuki; Matsuura, Akio

doi:10.2208/jscej.1994.493_89

Cited by 9 publications

(2 citation statements)

References 1 publication

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“…Rapid nondestructive testing technology is also being developed and some mathematical methods such as fuzzy evaluation, gray theory, and neural networks have been introduced into structural assessment [110,111]. Maintenance and reinforcement technologies such as bolting reinforcement, backfill pressure injection, and inner surface reinforcement have been verified by experiments [112][113][114][115][116], the results enriching the design programs of decaying tunnels and filling gaps in domestic research.…”

Section: Repair and Maintenancementioning

confidence: 99%

Research progress and development trends of highway tunnels in China

Wang

2013

J. Mod. Transport.

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The highway tunnel system in China has in recent years surpassed Europe, the United States, and other developed countries in terms of mileage, scale, complexity, and technical achievement. Much scientific research has been conducted, and the results have greatly facilitated the rapid development of China's highway tunnel building capacity. This article presents the historical development of highway tunneling in China, according to specific characteristics based on construction and operation. It provides a systematic analysis of the major achievements and challenges with respect to construction techniques, operation, monitoring, repair, and maintenance. Together with future trends of highway tunneling in China, suggestions have been made for further research, and development prospects have been identified with the aim of laying the foundation for a Chinese-style highway tunnel construction method and technical architecture.

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Section: Repair and Maintenancementioning

confidence: 99%

Research progress and development trends of highway tunnels in China

Wang

2013

J. Mod. Transport.

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“…For the reinforcement and repair technology of corrosion-deteriorated tunnel lining structure, Britain, the United States and other countries have performed relevant studies earlier, and proposed many practical local reinforcement and reinforcement schemes. For example, Asakura et al [10] used high-strength carbon fiber material to reinforce and repair the corroded lining, which effectively improved the bearing capacity of the cross-section. With the continuous increase in the number of old tunnels in recent years, some Chinese experts and scholars have also carried out corresponding studies [11,12].…”

Section: Introductionmentioning

confidence: 99%

Novel Reinforcing Techniques and Bearing Capacity Analysis for Tunnel Lining Structures with Extensive Corrosion

et al. 2023

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Affected by the erosive environment, tunnel lining concrete in the long-term service zprocess often exhibits engineering diseases such as concrete corrosion degradation and loss of strength, decreasing the stability of the tunnel lining structure and the traffic safety. Based on HTG tunnel project, the basic distribution rule of tunnel lining corrosion and macro mechanical properties of corroded concrete were explored in this paper through engineering disease site investigation. Then, on this basis, aiming at large-scale corrosion of tunnel lining structure, two reinforcement and repair schemes are proposed, corrugated steel plate reinforcement method and channel steel reinforcement method. Indoor component tests are carried out on the two reinforcement schemes. The failure characteristics and stress and deformation law of tunnel lining members after reinforcement and repair were verified. The analysis showed that the failure process of the reinforced specimens on the tensile side could be divided into the non-cracking stage and the working stage with cracks, and the cracking load and failure load of the specimens were significantly increased. The bearing capacity of the reinforced specimens was divided into the ultimate bearing capacity against cracking and the ultimate bearing capacity during failure. Finally, the calculation methods of the bearing capacity of the channel steel reinforcement method and the corrugated steel plate reinforcement method were derived. Comparative analysis shows that the results of numerical simulation, experimental testing and theoretical simplification methods are close to each other, and the maximum deviation is less than 8%. The established method for calculating the bearing capacity of corroded components after reinforcement is reliable and can be used for the design calculation of corroded lining reinforcement.

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Stabilization of the Ancient Serapeum at Saqqara—Strengthening Proposals Using Advanced Composite Materials

Hamdy

2020

Advances in Science, Technology &Amp; Innovation

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Behavior of Structurally Defective Tunnel Lining and Effectiveness of Inner Reinforcement

Cited by 9 publications

References 1 publication

Research progress and development trends of highway tunnels in China

Research progress and development trends of highway tunnels in China

Novel Reinforcing Techniques and Bearing Capacity Analysis for Tunnel Lining Structures with Extensive Corrosion

Stabilization of the Ancient Serapeum at Saqqara—Strengthening Proposals Using Advanced Composite Materials

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