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Physical and numerical studies of stability of soil blocks reinforced by brittle shear pins

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Abstract

In this paper, the stability and failure mechanism of soil blocks that were reinforced by brittle shear pins and rested on a low-interface friction plane were studied by means of physical and numerical models. The humid silica sand no. 6 was employed to build the physical models of soil blocks, while the Teflon sheet was employed as the low-interface friction plane. To study the effect of stabilizing piles on slopes, the soil blocks were reinforced by brittle shear pins using pencil leads with 2 mm in diameter. Three-dimensional finite element analyses were employed to analyze the stability of this problem. The effects of numbers and patterns of shear pins on the stability and failure mechanisms of physical and numerical models were compared and discussed.

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Acknowledgements

This work was funded by the ASEAN University Network/Southeast Asia Engineering Education Department Network (AUN/SEED-Net) PhD Sandwich Program under the Japanese International Cooperation Agency (JICA) and Electricity Generating Authority of Thailand (EGAT) for the Project “Failure mechanisms and stabilization of undercut slope with faults at Lowwall Area 4.1 by using shear pins and rock bunds”.

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Correspondence to Boonchai Ukritchon.

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Ukritchon, B., Ouch, R., Pipatpongsa, T. et al. Physical and numerical studies of stability of soil blocks reinforced by brittle shear pins. Acta Geotech. 14, 2103–2122 (2019). https://doi.org/10.1007/s11440-019-00824-8

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