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contributor authorHao Chen
contributor authorHongpeng Lai
contributor authorYuliang Qiu
contributor authorRui Chen
date accessioned2022-01-30T19:10:01Z
date available2022-01-30T19:10:01Z
date issued2020
identifier other%28ASCE%29CF.1943-5509.0001363.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4264777
description abstractLining cracks are one of the most common distresses in in-service highway tunnels and pose severe threats to the safety of tunnel operation. Traditional methods for retrofitting distressed tunnel lining all have limitations, and the inner-surface reinforcing method using bonded steel plates is becoming increasingly popular. However, research into its use for reinforcing the distressed lining of highway tunnels is limited. This paper intends to fill this knowledge gap by presenting a case study of using bonded steel plates for strengthening the cracked lining of highway tunnels. First, the cracking status of tunnel lining was thoroughly analyzed through field investigation. It is found that water-induced swelling and softening of surrounding rock increases the overburden pressure on the structure and an aging effect accelerates the degradation of the lining concrete, finally causing the cracking of the tunnel lining. Second, the thickness, width, and spacing of bonded steel plates that have a significant effect on the reinforcing performance were studied numerically by FLAC3D software. It is found that bonded steel plates with a thickness of 8 mm, a width of 30 cm, and spacing of 20 cm can achieve optimum reinforcing performance. Finally, the field implementation scheme for reinforcing the cracked tunnel is proposed accordingly.
publisherASCE
titleReinforcing Distressed Lining Structure of Highway Tunnel with Bonded Steel Plates: Case Study
typeJournal Paper
journal volume34
journal issue1
journal titleJournal of Performance of Constructed Facilities
identifier doi10.1061/(ASCE)CF.1943-5509.0001363
page04019082
treeJournal of Performance of Constructed Facilities:;2020:;Volume ( 034 ):;issue: 001
contenttypeFulltext


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