Impact of Coupling Beams on Shearing Force of Micro-Pile Group in Landslide

Abstract:

In recent years, micro-pile has been widely applied to landslide treatment engineering due to its advantages in application and construction, with quite evident engineering effect. Different geological experts have focused on sundry research direction on its resistance mechanism. Based on results from numerical simulation, shearing forces of micro-pile in landslide treatment engineering with and without coupling beams were analyzed, all of which are hoped to reveal the impact of coupling beams between the top of the piles on shearing force of micro-pile group in landslide. Results from contradistinction showed that coupling beam played greater role with shearing force to segment piles, comparing with less to the force near the sliding surface. Without coupling beams, shearing force of each pile from each row suffered quite different, comparing to that of small differences with beams. With no coupling beams, first damage points were located under top of the piles at about six times the pile diameter.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 341-345
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.341
• Online since: January 2014
• Authors: Shu Feng Wang
• Keywords: Coupling Beam, Micro-Pile, Numerical Simulation, Physical Model Test, Shearing Force

References

[1] M.J. Thompson: Experimental Load Transfer of Piles Subject to Lateral Soil Movement, Transportation Scholars Conference. Iowa, America (2004), p.18.

[2] Y.Y. Su. Model Tests on Grouted Micro-steel-tube Pile in Earth Slope (MS, Ocean University of China, China 2010), p.16.

[3] S.W. Sun, B.Z. Zhu and H.M. Ma: Model Experimental Research on Anti-sliding Characteristics of Micropiles with Cap Beam, Chinese Journal of Rock Mechanics and Engineering, Vol. 29(supp. 1) ( 2010), p.30.

[4] W.M. Xiao. Study on Anti-sliding Mechanism of Micro-pile Structure (MS, Southwest Jiaotong University, China 2008), p.16.

[5] Andrew• Z•B. Load Transfer in Micropiles for Slope Stabilization from Tests of Large-scale Physical Models (MS, University of Missouri-Columbia, America 2006), p.69.

DOI: 10.32469/10355/4633

[6] J.K. Yan. Model Test Study on Micropiles in Landslide Reinforcement[D]. Xi'an: Chang'an University, 2010, p.71-p.98.

[7] S.F. Wang, Y.P. Yin and Y.M. Men, In-situ test and numerical analysis of skid resistance for micropile to loess landslide [J]. HYDROGEOLOGY & ENGINEERING GEOLOGY, 2010, 37(6): p.22-p.26.

[8] D.P. Zhou, H.L. Wang, S.W. Sun. Micro-pile composite structure and its design theory[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(7): p.1354-p.1356.