Deformation calculation of the reinforced tunnel is always the key and difficult problem in
tunnel support design. To achieve simple and rapid tunnel performance evaluation, this …

Tunnels embedded in soft rock masses experience time-dependent behaviour, and
designing an appropriate supporting system is a challenging task. This condition can be …

According to the excavation methods of tunneling, a damaged zone may be developed in
the rock mass around the tunnel, the mechanical properties of which can be significantly …

A new theoretical method is proposed to simulate the fiberglass dowels performance in the
confinement of the tunnel face in weak rock masses. In this method, to find the stress …

Long-term tunnel displacement prediction is of great engineering significance to tunnel
maintenance and hazard warning. To that end, this paper provides a novel combination idea …

Abstract Design of pressurized tunnels in rock masses which have a time-dependent
behavior is a challenging task. On the one hand, time-dependent behavior not only imposes …

Rockbolt is a common support method in underground tunnel engineering, used to enhance
the strength of rock mass and improve the stability of surrounding rock. In this paper, the …

If an underground opening is excavated using the drill and blast method, an excavation
damaged zone (EDZ) will appear around the opening in which it's mechanical and creep …

The issue of pressurized tunnels has been sufficiently investigated in the literature;
nevertheless, the long-term behavior of the problem, which is the case in very squeezing …

abstract To study the mechanical behavior of crushed rock aggregate, a series of large-scale
direct shear tests were conducted. Then the particle flow model was established with PFC3D …