A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Impact of Broken Rock behind Expressway Tunnel Lining on Structure Safety
According to the model tests of the broken rock behind the tunnel lining impacting on the structural safety, and numerical simulation studying the tunnel in 3 different stress fields while the broken rock locates 2 different positions, the article studies the safety of tunnel structure. The results showed that: in a uniform stress field, the lining played a maximum carrying capacity whenever the broken rock on the vault or behind the right side of the wall. In the horizontal pressure based stress field, when broken rock is on the vault, the grouting effect is most significant and the negative moment was controled by the rate of 75%. In the vertical pressure based stress field, when the broken rock is behind the right side wall, the disease spread sporadically throughout the arch after grouting.
Impact of Broken Rock behind Expressway Tunnel Lining on Structure Safety
According to the model tests of the broken rock behind the tunnel lining impacting on the structural safety, and numerical simulation studying the tunnel in 3 different stress fields while the broken rock locates 2 different positions, the article studies the safety of tunnel structure. The results showed that: in a uniform stress field, the lining played a maximum carrying capacity whenever the broken rock on the vault or behind the right side of the wall. In the horizontal pressure based stress field, when broken rock is on the vault, the grouting effect is most significant and the negative moment was controled by the rate of 75%. In the vertical pressure based stress field, when the broken rock is behind the right side wall, the disease spread sporadically throughout the arch after grouting.
Impact of Broken Rock behind Expressway Tunnel Lining on Structure Safety
Advanced Materials Research ; 446-449 ; 2118-2124
2012-01-24
7 pages
Article (Journal)
Electronic Resource
English
Impact of Broken Rock behind Expressway Tunnel Lining on Structure Safety
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