Numerical Study on the Effect of Twin-Tube Shield Excavation on Adjacent Pipelines
Numerical Study on the Effect of Twin-Tube Shield Excavation on Adjacent Pipelines
- New search for: Wang, Xin
- New search for: Zhao, De-Shen
- New search for: Xu, Meng-Lin
- New search for: Wang, Xin
- New search for: Zhao, De-Shen
- New search for: Xu, Meng-Lin
Based on Dalian subway line 2 from Chun-guang street station to Xiang-gong street station, the three dimensional finite element model was established using FLAC3D software, the shield excavated surface against the pressure, the stress release, the shield tail escape and grouting. The numerical result indicated that the pipeline displacement increases gradually with the advance of the tunnel excavation. When one-sided tunnel excavation is carried out, the largest displacement is located at the tunnel axis, the settling curve basically conforms to the normal distribution curve with the unimodal characteristic. The excavation of right-side tunnel is disadvantageous to the left-side tunnel. The analysis indicated that the pipeline is in a secure state. The work in this paper provided theoretical basis and the practical guidance to this project.
Document information
Numerical Study on the Effect of Twin-Tube Shield Excavation on Adjacent Pipelines
CEABM, International Conference on Civil Engineering, Architecture and Building Materials, 2 ; 1491-1496
Applied Mechanics and Materials ; 170-173
2012
6 Seiten
Conference paper
English
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