A full 3-D finite element analysis of tunneling–adjacent structures interaction

Research on dynamic response of historic timber structure with platform-foundation under metro-induced loads

“…; 2) Boundary conditions: man-made viscoelastic boundary conditions were adopted, which can simulate the absorption of scattered wave energy by soil and the elasticity recovery capacity of the medium outside the artificial boundary, and thus had fairly good computational stability; 3) Selection of element type and constitutive relation: the timber structure adopt B31 beam element, and the soil and the tunnel structure employ C3D8R linear reduced-integration solid element, the timber structure and the tunnel use elastic model, and the soil adopt Mohr-Coulomb model; 4) Calculation parameters: the calculation parameters of the finite element model were determined according to concrete conditions of the geology of the Bell Tower region, the rammed earth of the tower platform-foundation, the superstructure(the effect of minor structure was ignored while calculating and the mass of the roof were converted into the pillar )and the tunnel structure(as shown in Table 1) [4][5][6] . Based on these, three-dimensional finite element model of Bell Tower-soil-tunnel structure interaction was established (as shown in Figure 5) and the simulated metro-induced loads which had been got above were applied to the model by means of table loading, and the position of dynamic response detecting points are shown in Figure 6.…”

The Influence of Building Weight on Tunnelling-Induced Ground and Building Deformation

“…More recently, Bloodworth (2002) carried out threedimensional finite element analyses similar to the work described above, including buildings modelled as collections of connected plane stress facades. Mroueh and Shahrour (2003) have also published full three-dimensional analyses including tunnel, soil and structure in which the initial stresses in the soil due to self-weight and building weight are included. These studies all point to the need for 3D models of tunnelling-induced settlement damage to buildings.…”

Effects of twin tunnels construction beneath existing shield-driven twin tunnels

“…The additional movements caused by the interaction between tunnels may result in asymmetric settlement troughs. The behaviours of existing structures induced by adjacent tunnelling have also been extensively studied, most of which focus on the influences on existing buildings (e.g., Boscardin and Cording, 1989;Burland, 1995;Boone, 1996;Burd et al, 2000;Mroueh and Shahrour, 2003;Zhang et al, 2013) or pipelines (e.g., Klar et al, 2005;Vorster et al, 2005;Fang et al, 2011;Zhang et al, 2012). Relatively speaking, there are only limited published data related to the response of existing tunnels to new tunnels construction nearby.…”