On Stability and Deformation of Slurry-Trench Affected by Formation Equipment

Abstract:

A synthesized investigation is conducted of trench formation machine’s effect on trench wall in soft soil area. The failure pattern of the slurry-trench is analyzed by means of 3D FEM based on strength reduction method. The investigation shows that the global instibility occurs in the superficial layers and speads along the trench segment. The grab movement in slurry has an instant impact on the trench wall and may cause local instability. The overload and construction technique of trench formation equipment are both important concerns during trench construction to ensure safetry.

• Periodical: Applied Mechanics and Materials (Volumes 580-583)
• Pages: 805-811
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.580-583.805
• Online since: July 2014
• Authors: Mao Yin Shi*, Fu Gui Song
• Keywords: Deformation, Formation Equipment, Instability Mechanism, Slurry-Trench

References

[1] Guobin Liu, Weidong Wang: Manual of Excavation Engineering[M]. China Building Industry Press. 2009, 2rd Edition. (in Chinese).

[2] TSAI J S: Canadian Geotechnical Journal, 3, 189, (1997).

[3] Pengming Jiang et al: Chinese Journal of Geotechnical Engineering, 21, 338, 1999. (In Chinese).

[4] Shiyong Shi, Wei Zhang: Journal of Geotechnical Engineering. S1, 1418, 2006. (in Chinese).

[5] Yonggang Xu et al: Journal of Rock Mechanics and Engineering, S2, 3464, 2011. (in Chinese).

[6] Powrie W，Kantartzi C: Geotechnique. 46(4), 725, (1996).

[7] Oblozinsky P, Ugai K, Kataguri M, et al: Computers and Geotechnics. 28(2): 145, (2001).

[8] Guogang Lei etal: Advances in Science and Technology of Water Resources. 01, 82, 2006. (in Chinese).

[9] Washbourne J: Ground Engineering the Magazine of the British Geotechnical Association, 18(05), 18, (1985).