Vulnerability is a fundamental component of risk and its understanding is important for
characterising the reliability of infrastructure assets and systems and for mitigating risks. The …

The high uncertainties involved in the design and construction of mountain tunnels have
driven the development of risk analysis procedures to control the risk level within an …

This study develops fragility curves for rectangular cut-and-cover tunnels from nonlinear
frame analyses. Fragility curves are generated for single, double, and triple boxes …

The paper presents a numerical approach for the construction of seismic fragility curves for
shallow metro tunnels considering the soil-structure-interaction (SSI) and the aging effects …

Fire hazards are a major threat to tunnel structures; however, the existing understanding of
the behavior of tunnel linings under fire is limited, which restricts cost-effective and safe …

The interstory drift ratios (IDRs) associated with the performance objectives for the
underground structure are not well defined. In this paper, four levels of performance …

This paper proposes a new method for evaluating the seismic performance and fragility of
large underground structures. A typical underground subway station consisting of a two …

Isolation bearings have been a widely applied seismic strengthening technique in above
ground structures. Whereas, the sliding isolation bearings were seldom used in …

The flexibility ratio (F) is defined as the stiffness of a structure relative to that of soil, a critical
factor affecting the soil–structure interaction. This study aimed to investigate the effect of F on …

Subjected to the coupling action of multiple hazards in hydraulic engineering, hydraulic
tunnels may be corroded and damaged to varying degrees during their service lives, which …