Bearing Behavior of Steel Foot Pipe in Tunnel on Soft Base

Yi Min Wu

doi:10.4028/www.scientific.net/AMR.163-167.3604

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Reliability Analysis and Design Suggestion of Concrete Structure Bonded Rebars with Inorganic Material
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Effect of Cycle-Counting Methods on Fatigue Evaluation of Railway Bridges
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Experimental Investigation on Anchorage Mechanisms of Self-Locked Anchor under Combined Tension and Shear
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Bearing Behavior of Steel Foot Pipe in Tunnel on Soft Base
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 163-167Bearing Behavior of Steel Foot Pipe in Tunnel on...

Bearing Behavior of Steel Foot Pipe in Tunnel on Soft Base

Abstract:

Numerical simulations were conducted to investigate the bearing behaviour of steel foot pipe. Main mechanical affections occur at the lateral zone, and the maximal stress occurs at the lateral end of the pipe. With the increase of cross direction load, the maximal stress increases and exceeds the strength of material, and the pipe is pulled out. The influencing factors of bearing capacity of the steel foot pipe were studied. Some important results different from engineering experiences are as following: 1) to steel foot pipe that can not penetrate the soft base, its reasonable dip angle is very small for its low longitudinal bearing capacity; 2) steel pipe with diameter of 42mm is unsuitable for foot steel pipe because its low cross bearing capacity; 3) to a given geological condition and pipe parameter, the reasonable length of steel pipe is certain, extra longer pipes can’t obtain larger capacity; 4) surrounding rock near the support structure should be especially reinforced by drilling grouting holes along the whole steel pipe.

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Periodical:

Advanced Materials Research (Volumes 163-167)

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3604-3609

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.163-167.3604

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Online since:

December 2010

Authors:

Yi Min Wu

Keywords:

Bearing Behavior, Soft Base, Steel Foot Pipe, Tunnel

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References

[1] Liu G., Zhang F.Y., Li X.Z., et al. Chinese Journal of Rock Mechanics and Engineering, Vol. 24(S2), 5521-5526. (2005, in Chinese).

Google Scholar

[2] He M.C., Jing H.H., Sun X.M. Soft rock engineering geomechanics,. Science Press, Beijing, China. (2002, in Chinese).

Google Scholar

[3] Wu Y.M., Lu K.C. The Chinese Journal of Geological Hazard and Control, Vol. (1), 133-137. (2007, in Chinese).

Google Scholar

[4] Wu Y.M., Wang Y., Lu K.C. Treatment of slope of large span and shallow buried tunnel of Changgan No. 1 tunnel,. Proc. of 2007 National Conference of CHTS(C). Chongqing, China. (2007, in Chinese).

Google Scholar

[5] Wang B., Wu D.X. Railway Engineering, Vol. (1), 43-47. (2007, in Chinese).

Google Scholar

[6] Wang X. Study on behavior of square concrete-filled steel tubular column". Master Dissertation, Xi'an University of Science and Technology, Xi, an, China. (2006, in Chinese).

Google Scholar