... ground response curve stress analysis tunnels & tunnelling The relationship between support pressure and tunnel convergence (i.e. ground response curve, GRC) is vital for tunnel design with the convergence–confinement method (Brown et al., 1983 ; Park et al., 2008). Very...

... License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. limit equilibrium methods numerical modelling tunnels & tunnelling In this study, a circular trapdoor with diameter d (or a strip trapdoor...

...) . This indicates that the filter cake formation prevents further slurry penetration. grouting permeability tunnels & tunnelling Bentonite slurry is a kind of suspension with rheological, thixotropic and low-permeability characteristics (Au & Leong, 2013 ; Rinaldi & Clariá, 2016...

... is imposed at every node in the following manner: 8a σ max I − σ ′ ≥ 0 ICE Publishing: all rights reserved 2020 failure groundwater tunnels & tunnelling Tunnelling provides an excellent solution in building many infrastructures such as mass transit...

... ICE Publishing: all rights reserved 2020 Numerical modelling limit state design/analysis tunnels & tunnelling The stability of tunnels and underground openings is most often described by a stability number (N) that was stated in Broms & Bennermark (1967) . It was concluded...

.../rock mechanics tunnels & tunnelling The optimum rock cutting data (specific energy and tool forces) attained from the full-scale cutting testbeds provide fundamental input parameters for both performance prediction and excavation machine (tunnel-boring machines (TBM) or roadheaders) design...

... (N_{c) in their study. ICE Publishing: all rights reserved 2018 clays limit state design/analysis tunnels & tunnelling The stability of tunnels and underground openings is most often described by the stability number (N) in Broms & Bennermark (1967) . The stability number (N}...

... = 1 d Δ ε s − Δ ε e 2 Δ ϕ = ∫ Δ κ d z + A diaphragm & in situ walls field instrumentation tunnels & tunnelling Underground construction in congested urban environment has been increasingly challenging over the recent decades...

... in the transverse direction are reasonably consistent with the measured results. 02 01 2016 31 03 2016 ICE Publishing: All rights reserved 2016 centrifuge modelling numerical modelling tunnels & tunnelling Although tunnel–tunnel interaction has recently been studied...