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Model Tests on Granular Pile Anchor and Helical Anchor: A Comparative Study

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Abstract

Helical anchors (HAs) are widely used as a tension resistance foundation technique. A relatively new anchor technique called granular pile anchor (GPA), an economical anchoring method, can be implemented in the field without sophisticated machinery. The laboratory model tests were conducted to compare the uplift capacity of GPA with the HA in medium dense sand. The influence of the number of anchor plates and the inter-plate distance on the uplift performance of the GPA was also assessed. The results indicated that GPA performed better than the HA. The uplift performance of GPA and HA improved with additional anchor plates/helix plates. When compared to HA, the GPA with an embedment ratio of 7.5 outperformed the GPA with an embedment ratio of 5 and 10. The optimum number of anchor plates was found to be two for the GPA. The optimum anchor plate spacing for GPA was observed to be 3D and 2D for the double and triple anchor plate GPA, respectively.

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Acknowledgements

The authors wish to express their gratitude to the Gujarat Council on Science and Technology (GUJCOST), Department of Science and Technology, Gujarat, grant no. GUJCOST/MRP/2015-16/2612 dated 28/03/2016 for funding the research of Dr. Jignesh Patel and Dr. Yogendra Tandel. The present study has utilized the uplift apparatus and the electronic measuring instruments procured through this funding.

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Authors and Affiliations

  1. Department of Civil Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, India

    Jerin Joseph, Shailendra Kumar & Jignesh B. Patel

  2. Department of Civil Engineering, Indian Institute of Technology, Roorkee, India

    Vishwas Sawant

  3. Applied Mechanics Department, Government Engineering College Dahod, Dahod, Gujarat, 389151, India

    Yogendra Tandel

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  1. Jerin Joseph
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  2. Shailendra Kumar
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  3. Jignesh B. Patel
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  4. Vishwas Sawant
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  5. Yogendra Tandel
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Contributions

SK and JP designed research, contributed to the interpretation of the results; JP and YT provided funding acquisition, project administration, and resources; JJ performed the model tests, and wrote the manuscript; VS and YT conducted review and editing.

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Correspondence to Jignesh B. Patel.

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Joseph, J., Kumar, S., Patel, J.B. et al. Model Tests on Granular Pile Anchor and Helical Anchor: A Comparative Study. Int. J. of Geosynth. and Ground Eng. 8, 44 (2022). https://doi.org/10.1007/s40891-022-00386-y

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