Abstract
Two analytical solutions for estimating the ovaling deformation and forces in circular tunnels due to soil - Structure interaction under seismic loading are widely used in engineering practice. This paper addresses an unresolved issue related to discrepancy between the two solutions. A comparison of the two solutions shows that the calculated forces and displacements are identical for the condition of full-slip between the tunnel lining and ground. However, the calculated lining thrusts differ by an order of magnitude when assuming no-slip between the tunnel lining and the ground. The analytical solutions are compared to numerical analyses of the no-slip condition using the finite element method to validate which of the two solutions provide the correct solution. Numerical analysis results agree with one of the analytical solution that provides a higher estimate of the thrust on the tunnel lining, thus highlighting the limitation of the other analytical solution.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 435-441 |
| Number of pages | 7 |
| Journal | Tunnelling and Underground Space Technology |
| Volume | 20 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2005 |
Keywords
- Earthquake design
- Seismic design
- Tunnels
- Underground structures
ASJC Scopus subject areas
- Building and Construction
- Geotechnical Engineering and Engineering Geology