In the past few decades, the number of tunnels constructed next to an existing tunnel has
been gradually increasing in order to accommodate infrastructure needs in congested urban …

Tunnel excavation below existing tunnels produces ultimate and serviceability problems to
the existing tunnels. The behaviours of induced stresses on the existing tunnels haven't yet …

With the expansion of underground space networks, new tunnels especially large-diameter
shields under-crossing existing tunnels have been commonly practiced. To obtain a better …

The subway systems have greatly released the pressure of ground traffic, but shield
construction will cause considerable disturbance to the surrounding soil. Consequently …

The impact of twin shields tunneling undercrossing with an oblique angle on the existing
tunnels is complicated and still lacks of understanding. This paper investigated the …

This paper presents a simplified procedure to evaluate the failure probability of crossing
tunnels considering the spatial variabilities of rock mass properties. Numerical package …

Due to the increasing development of infrastructure systems in urban areas of China, many
subway tunnels are being constructed near existing subway lines. Shield tunneling …

Tunnelling in the dense urban areas frequently results in over-crossing or bypassing the
existing tunnels. It is obvious that the over-crossing tunnelling will adversely affect and even …

The shield tunnelling adjacent pile group was a common phenomenon in urban metro
construction, and additional internal force and displacement field of pile group was …

This paper proposed an analytical solution to investigate the response of an existing tunnel
induced by new tunnel excavation underneath. A Timoshenko beam lying on a Kerr …