|
|
|
| Study on Ground Settlement Caused by Shield Tunneling Long Distance Across Multitracks |
| XIAO Li, ZHANG Qing-He |
| (Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China) |
|
|
|
|
Abstract Based on the bidsection of Binhai mass transit from Tianjin station to Qijing road station, 3DFEM was put forward to simulate shield tunneling long distance under multitracks of railway. According to the simulation results, settlement of ground surface along and perpendicular to the shield tunnel were analyzed. The disturbance area of ground and the settlement ratio dedicated by first tunnel and second tunnel were studied. The ground settlements caused by tunneling in different conditions were simulated and studied. The simulation results which fit well with monitoring data show that the maximum settlement of ground is between 18 mm and 20 mm. The influence of grouting amount is more significant than that of grouting pressure and soil pressure.
|
|
Received: 21 September 2010
Published: 30 May 2011
|
|
|
|
|
|
| No related articles found! |
|
|
|
|
