Hyperstatic reaction method for calculations of tunnels with horseshoe-shaped cross-section under the impact of earthquakes |
| |
Authors: | Chi Thanh Nguyen Alexandr Gospodarikov |
| |
Affiliation: | 1.Saint Petersburg Mining University, Saint Petersburg, Russian Federation ;2.Faculty of Civil Engineering, Hanoi University of Mining and Geology, Hanoi, Vietnam ; |
| |
Abstract: | Tunnels are now an integral part of the infrastructure in major cities around the world. For many reasons, these tunnels have horseshoe-shaped cross-sections with round top and flat bottom. This paper presents some improvements to the use of the Hyperstatic Reaction Method-HRM for analysing tunnels with horseshoe-shaped cross-sections when these tunnels operate under the influence of earthquakes, particularly in cases when the tunnel lining is a continuous lining. The analysis used parameters of a tunnel from the Hanoi metro system, as well as parameters of the strongest earthquake that may occur in the central Hanoi area in the improved HRM and 2 D numerical methods using the ABAQUS software. On the basis of the results obtained, the paper gives conclusions about the HRM methodology when it is used to calculate tunnels that have horseshoe cross-sections operating under the influence of earthquakes. |
| |
Keywords: | |
本文献已被 CNKI SpringerLink 等数据库收录! |
|