Abstract
In contrast to reinforced concrete (RC) structures on land, RC shield tunnels in coastal regions deteriorate rapidly after their construction because of the combined effects of multiple mechanical and environmental stressors. In this paper, by considering the coastal hazards associated with chloride and the impacts of hydrostatic pressure, a novel approach is presented to estimate the life-cycle structural performance of a shield tunnel that has undergone deterioration due to chloride-induced steel corrosion. Deterioration processes in segmental linings are investigated via corrosion-accelerated experiments on individual segments, and the combined effects of corrosive agents and loads are emphasized. Monte Carlo simulation is used to estimate the time-variant failure probability of shield tunnels in a marine environment. In an illustrative example, the effects of structural location, hydrostatic pressure and material properties on the life-cycle reliability of shield tunnels are investigated.
| Original language | English |
|---|---|
| Journal | Structure and Infrastructure Engineering |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
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Keywords
- chloride
- corrosion initiation
- deterioration
- hazard assessment
- hydrostatic pressure
- Reinforced concrete shield tunnel
- time-variant failure probability
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Safety, Risk, Reliability and Quality
- Geotechnical Engineering and Engineering Geology
- Ocean Engineering
- Mechanical Engineering
Cite this
Life-cycle reliability analysis of shield tunnels in coastal regions : emphasis on flexural performance of deteriorating segmental linings. / He, Zhengshu; Akiyama, Mitsuyoshi; He, Chuan; Frangopol, Dan M.; Liu, Si Jin.
In: Structure and Infrastructure Engineering, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Life-cycle reliability analysis of shield tunnels in coastal regions
T2 - emphasis on flexural performance of deteriorating segmental linings
AU - He, Zhengshu
AU - Akiyama, Mitsuyoshi
AU - He, Chuan
AU - Frangopol, Dan M.
AU - Liu, Si Jin
PY - 2019/1/1
Y1 - 2019/1/1
N2 - In contrast to reinforced concrete (RC) structures on land, RC shield tunnels in coastal regions deteriorate rapidly after their construction because of the combined effects of multiple mechanical and environmental stressors. In this paper, by considering the coastal hazards associated with chloride and the impacts of hydrostatic pressure, a novel approach is presented to estimate the life-cycle structural performance of a shield tunnel that has undergone deterioration due to chloride-induced steel corrosion. Deterioration processes in segmental linings are investigated via corrosion-accelerated experiments on individual segments, and the combined effects of corrosive agents and loads are emphasized. Monte Carlo simulation is used to estimate the time-variant failure probability of shield tunnels in a marine environment. In an illustrative example, the effects of structural location, hydrostatic pressure and material properties on the life-cycle reliability of shield tunnels are investigated.
AB - In contrast to reinforced concrete (RC) structures on land, RC shield tunnels in coastal regions deteriorate rapidly after their construction because of the combined effects of multiple mechanical and environmental stressors. In this paper, by considering the coastal hazards associated with chloride and the impacts of hydrostatic pressure, a novel approach is presented to estimate the life-cycle structural performance of a shield tunnel that has undergone deterioration due to chloride-induced steel corrosion. Deterioration processes in segmental linings are investigated via corrosion-accelerated experiments on individual segments, and the combined effects of corrosive agents and loads are emphasized. Monte Carlo simulation is used to estimate the time-variant failure probability of shield tunnels in a marine environment. In an illustrative example, the effects of structural location, hydrostatic pressure and material properties on the life-cycle reliability of shield tunnels are investigated.
KW - chloride
KW - corrosion initiation
KW - deterioration
KW - hazard assessment
KW - hydrostatic pressure
KW - Reinforced concrete shield tunnel
KW - time-variant failure probability
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UR - http://www.scopus.com/inward/citedby.url?scp=85062774621&partnerID=8YFLogxK
U2 - 10.1080/15732479.2019.1578381
DO - 10.1080/15732479.2019.1578381
M3 - Article
JO - Structure and Infrastructure Engineering
JF - Structure and Infrastructure Engineering
SN - 1573-2479
ER -