Calculation and Analysis of the TBM Construction Rational Buried Depth

Abstract:

The sixth Chongqing metro line is taked for example, numerical simulation is applied for finite analysis and calculation, the safety of the primary support and the second lining are calculated respectively in different level of surrounding rock, double hole case,different bedrock and overlying abandon ballastless thickness for 45 cases,and then based on the result analysis and calculate the rational buried deepth of the surrounding rock under the different level, And according to the actual measurement of deformation calculation value and deformation value of hole is used for comparison, reference and basis for the similar case is presented.

• Periodical: Applied Mechanics and Materials (Volumes 90-93)
• Pages: 2803-2807
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.90-93.2803
• Online since: September 2011
• Authors: Li Na Ma, Song Hong Yan, Rong Ling Zhang
• Keywords: Double Hole, Metro Tunnel, Numerical Simulation, Rational Buried Depth

References

[1] Reilly John,Arrigoni Gianni,Xu Shulin,Grasso Piergiorgio.Modern tunnel technology.VOL.39 No.1 Feb.2002 :P.1～5.

[2] Zhuoxiong Xie.Research on the stability of surrounding rock by construction structure and mechanical behavior characteristics for small interval tunnel [Master's degree thesis][D].Xi Nan Jiaotong University Master's thesis,2005. In Chinese

[3] Yong Yao,Qixiang Yan,Lili Zhou. Chengdu：Southwest university of science and technology In Chinese,VOL.20 No.2,2005(6): P.54～57.

[4] Juyi Hu. Chongqing: vehicular tunnel In Chinese.2007(4): P.26～29.

[5] Maocheng Wang,Min Shao. The basic principle and method of finite element numerical calculation In Chinese [M].Beijing: Tsinghua university press,1997.