Please use this identifier to cite or link to this item:
|dc.title||Centrifuge modelling of tunnel face reinforcement using forepoling|
|dc.identifier.citation||Juneja, A., Hegde, A., Lee, F.H., Yeo, C.H. (2010-07). Centrifuge modelling of tunnel face reinforcement using forepoling. Tunnelling and Underground Space Technology 25 (4) : 377-381. ScholarBank@NUS Repository. https://doi.org/10.1016/j.tust.2010.01.013|
|dc.description.abstract||This paper investigates the effect of forepoles on stability of tunnel face and unsupported length during tunnel excavation in clay beds. Forepoles were modelled using 1. mm diameter brass rods. The tests were conducted using 65. mm diameter model tunnels with a flexible face at 100. g centrifuge environment. The unsupported length of the tunnel varied between 1 and 1.5 times the tunnel diameter in different tests. The results seem to suggest that forepoles influence to reduce the length of settlement trough ahead of the tunnel face. However, width of the settlement trough remained unaffected. Excess negative pore pressures after collapse were noted to decrease with distance ahead of the tunnel face and increase with depth from the surface up to the tunnel axis. However, scatter in the measured data points suggest that the tunnel stability depends not only on the unsupported length of the tunnel but also on the length of forepoles. It is difficult to include these effects in the simple plasticity solution framework wherein the soil structure interaction is ignored. © 2010 Elsevier Ltd.|
|dc.description.sourcetitle||Tunnelling and Underground Space Technology|
|Appears in Collections:||Staff Publications|
Show simple item record
Files in This Item:
There are no files associated with this item.
checked on Aug 7, 2020
WEB OF SCIENCETM
checked on Jul 31, 2020
checked on Aug 3, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.