Modeling of Anchors in Gravel Formation Using Discrete Element Method

Sung Chi Hsu; Bo Jing Lai; Wei Hsu; Juir Ren Lai

doi:10.4028/www.scientific.net/AMR.189-193.1726

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Modeling of Anchors in Gravel Formation Using...

Modeling of Anchors in Gravel Formation Using Discrete Element Method

Abstract:

The subject of this research mainly focuses on the gravel formation along the western foothill of Taiwan. Numerical simulations are performed using discrete element method (DEM) based the software Particle Flow Code (PFC). Physical properties and internal friction angle of gravels are obtained from the three dimensional modeling of in-situ direct shear tests. The numerical experiments using PFC2D are used to model single-vertical anchor installed at shallow depths. The numerical results indicate that the failure range for the tension-type anchor is smaller than the range for compression-type anchor at the same bonded length and friction angle. The pullout resistance for the compression anchor is also greater than the tension anchor. Similar results have been obtained from the field pullout tests. The transmission of forces along the anchor is significantly affected by way of particle permutation with the anchor. If bigger size particles are piled around the anchor, the transmission of forces along the anchor will be faster and the affecting range of particles is also larger.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

1726-1731

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.1726

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Online since:

February 2011

Authors:

Sung Chi Hsu, Bo Jing Lai, Wei Hsu, Juir Ren Lai

Keywords:

Anchor, Discrete Element Method (DEM), Gravel, Numerical Simulation, PFC

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References

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