ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2018, Vol. 38 ›› Issue (S2): 384-388.DOI: 10.3973/j.issn.2096-4498.2018.S2.053
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CHEN Wangqi1, LIU Baodong1, *, LIU Rui2, JING Lijiang3
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Abstract:
In order to solve the problem of delamination of the tunnel lining, a lining reinforcement method using corrugated steel sheets is proposed. The method uses chemical anchor bolts to connect the corrugated steel sheets are connected with the lining concrete, and a filling material is added in the connections. The finite element numerical simulation models are established under 3 conditions, i.e. the corrugated steel plate works alone, the corrugated steel plate and the chemical anchor bolt work together, and the corrugated steel plate, the chemical anchor bolt and the filling layer work together when tunnel lining concrete falls; and the corresponding reinforcement effects are calculated and analyzed. The calculation results show that: (1) The structure is in the most unfavorable condition when the corrugated steel plate works alone, the top deflection of the corrugated plate is 110.2 mm and the stress is 136.8 MPa, which can still meet requirements. (2) When considering the actions of the chemical anchor and the filling layer, the structural response is minimal.
Key words: tunnel lining disease, corrugated steel, numerical simulation
CLC Number:
U 45
CHEN Wangqi, LIU Baodong, LIU Rui, JING Lijiang. Analysis of Working Effect of Corrugated Steel Lining on Tunnel Lining Fall[J]. Tunnel Construction, 2018, 38(S2): 384-388.
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URL: http://www.suidaojs.com/EN/10.3973/j.issn.2096-4498.2018.S2.053
http://www.suidaojs.com/EN/Y2018/V38/IS2/384
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