Face stability protection is a critical issue during large cross-section tunneling. This study
investigates the evolution mechanism of tunnel face instability with different ground …

The soil layers that are traversed by urban tunnel are usually complex. The failure mode of
the tunnel face under complex soil conditions with different layers plays a key role for the …

Seepage plays a significant role affecting the tunnel face failure process. However, its effect
on the stability of the underwater tunnel face remains unclear. To study the seepage effect …

Tunnel excavation inevitably causes variations in stress and displacement fields in soil,
which could affect the serviceability and safety of the adjacent underground structures …

An analysis of tunnel face stability generally assumes a single homogeneous rock mass.
However, most rock tunnel projects are excavated in stratified rock masses. This paper …

The support pressure acting on a tunnel face is critical for the stability of the ground during
shield tunnelling. This paper presents a multi-arch model to predict the limit support …

The mechanical response of conditioned soil in an earth chamber is crucial for maintaining
the face stability of earth pressure balance (EPB) box jacking. This study presents the project …

The stability of excavation face in shield tunneling plays a key role for construction safety.
The ignorance of soil anisotropy in most previous studies would induce inaccurate stability …

Earth pressure balance (EPB) shield machine frequently drives along a route with a
longitudinal inclination angle (δ) during tunnel construction. The tunnel face stability is a …

In nature, rock masses often present non-horizontal layered characteristics due to geological
tectonics. Tunnelling in such rock formations threatens and reduces the stability of the tunnel …