Serving behavior of tunnels under normal working conditions but also extreme events such
as earthquakes is very important for the safe and long-time operation, and effective …

This paper investigates the development of crack and damage in shield tunnel lining under
seismic loading. Based on a recently constructed undersea-shield tunnel, ie the Shantou …

This study proposes a novel hybrid MFO-XGBoost model that integrates the moth-flame
optimization (MFO) algorithm and the extreme gradient boosting (XGBoost) to predict the …

More and more projects of underground structures undercrossing adjacent surface
structures have emerged in recent years. The existence of underground structure influences …

Fiber reinforced concrete has been a widely applied durable material in ground structures or
as the primary support in underground structures in the form of shotcrete. Whereas, fiber …

Due to the special configurations of the shaft-tunnel junction, discrepant responses of the
shaft and the tunnel will arise when earthquakes strike. This paper presents shaking table …

A transition tunnel is generally built to connect a TBM tunnel and a drill-and-blast tunnel,
given the different cross sections associated with each construction method. The transition …

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 …

This paper proposes convenient probabilistic models to estimate the seismic demands of
circular tunnels to transversal seismic load. The uncertainties in the earthquake intensity …

The voids between the primary and the secondary linings for tunnel structures can be
regarded as the worst contact state, which is deemed as serious tunnel quality defect …