A New Calculation Approach to Deal with Hydraulic Pressure in the Sandy Strata and its Application in Wuhan Subway

Abstract:

Based on the consideration of the performance, disaster prevention, relief and tunnel drainage requirement, the connected aisle becomes more and more important to the shield tunnel section with the construction of large quantities of shield tunnels. The construction mechanical behavior of the connected aisle is complex and difficult to simulate with exist method sometimes. In allusion to the numerical simulation of the construction mechanical behavior of the connected aisle in the shield tunnel which is built in the sandy strata with the high hydraulic pressure, a new calculation approach is put forward. The core idea is the coupling use of the stratum structure method and the load structure method. The new method is used in the construction mechanical behavior study of the connected aisle which is built in the shield tunnel across the Yangtze River in Wuhan subway. Some conclusions are drawn and some related advices are proposed based on the analysis of the numerical simulation.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 3605-3609
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.3605
• Online since: May 2011
• Authors: Shi Min Wang, Chuan He, Si Jin Liu, Yun Long Gao
• Keywords: Calculation Approach, Hydraulic Pressure, Sandy Stratum, Subway

References

[1] The National Standards Compilation Group of People's Republic of China. Code for the Design of Metro (GB50157–2003). Beijing:China Planning Press,2003. (In Chinese)

[2] Zhang Zhiqiang,He Chuan: Research on mechanical behaviour of construction of link line and shield tunnel on No.2 line of Guangzhou metro. Journal of the China Railway Society,2002,24(6):89-92. (In Chinese)

[3] GUO Lei: Study on mechanics behavior of cross passage and shaft for underwater shield tunnel. Chengdu: Southwest Jiaotong University, 2009. (In Chinese)

[4] Li Dayong, Chen Fuquan and Zhang Qinghe: 3-D numerical simulation of frozen construction of a connected aisle in metro. Rock and Soil Mechanics,2004, (S2):472-474. (In Chinese)

[5] Zhang Zhiqiang,He Chuan: Study on construction of cross connection of shield tunnel and connecting aisle by freezing method . Journal of the China Railway Society,2002,24(6):89-92. (In Chinese)