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Study on Surrounding Rock Deformation Discipline of Extra-Large Section Super-Shallow-Buried Tunnel

Huang, Ming Li / Chen, Ke Zhi / Tan, Zhong Sheng / Zhang, Jian Qiang

The type B section of Hongqihegou station is cross section and its excavation section area is about 730 m2. This section is located in rail transit line 3 at the center of Chongqing. For this reason, the heavy traffic, large amount buildings and pipelines surrounding, super-shallow-buried depth and small cross-cover ratio (only 0.4) become the determinant factor in tunnel construction. By using a new method—the up-down sidewall drift method combined with first-wall-and-then-arch method, the Hongqihegou station was successfully completed. Through the analysis of the monitoring measurement data, the discipline of surrounding rock deformation during construction is revealed.

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Study on Surrounding Rock Deformation Discipline of Extra-Large Section Super-Shallow-Buried Tunnel

Huang, Ming Li / Chen, Ke Zhi / Tan, Zhong Sheng / Zhang, Jian Qiang

The type B section of Hongqihegou station is cross section and its excavation section area is about 730 m2. This section is located in rail transit line 3 at the center of Chongqing. For this reason, the heavy traffic, large amount buildings and pipelines surrounding, super-shallow-buried depth and small cross-cover ratio (only 0.4) become the determinant factor in tunnel construction. By using a new method—the up-down sidewall drift method combined with first-wall-and-then-arch method, the Hongqihegou station was successfully completed. Through the analysis of the monitoring measurement data, the discipline of surrounding rock deformation during construction is revealed.

Study on Surrounding Rock Deformation Discipline of Extra-Large Section Super-Shallow-Buried Tunnel

Huang, Ming Li / Chen, Ke Zhi / Tan, Zhong Sheng / Zhang, Jian Qiang

The type B section of Hongqihegou station is cross section and its excavation section area is about 730 m2. This section is located in rail transit line 3 at the center of Chongqing. For this reason, the heavy traffic, large amount buildings and pipelines surrounding, super-shallow-buried depth and small cross-cover ratio (only 0.4) become the determinant factor in tunnel construction. By using a new method—the up-down sidewall drift method combined with first-wall-and-then-arch method, the Hongqihegou station was successfully completed. Through the analysis of the monitoring measurement data, the discipline of surrounding rock deformation during construction is revealed.

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Title:

Study on Surrounding Rock Deformation Discipline of Extra-Large Section Super-Shallow-Buried Tunnel

Contributors:

Huang, Ming Li / Chen, Ke Zhi / Tan, Zhong Sheng / Zhang, Jian Qiang

Published in:

Applied Mechanics and Materials ; 90-93 ; 2318-2322

Publication date:

2011-09-08

Size:

5 pages

ISSN:

1662-7482 , 1660-9336

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.90-93.2318

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Monitoring Measurement , Up-down Sidewall Drift Method , Extra-Large Section , First-Wall-and-then-Arch Method , Super-Shallow-Buried

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