Abstract
Inclined pile foundations with high inclination angles, subjected to both vertical and horizontal load, are increasingly used due to the advancement in installation technology. This study aimed to characterize the bearing capacities and deformation behavior of inclined pile foundations subjected to vertical and horizontal loads in laboratory-scaled testing. In a series of pile-modeled tests, the stainless-steel pile as a model pile, the single pile and the symmetrical 2 × 1 pile group were installed in dense sand at 0°, 10°, 20°, and 30° of inclination angles. The experiment in an inclined single pile subjected to vertical load aimed to minimize the eccentricity effect. The results showed that the optimal pile inclinations for vertical load were 10° and 20° for single pile and pile group, respectively. For optimal pile inclinations of horizontal load, they were between −10° to −20° and 20° for single pile and pile group, respectively. The ratios of the ultimate horizontal load to the ultimate vertical load (Quh/Quv) ranged from 0.02 to 0.19 and 0.15 to 0.23 for the single pile and the pile group tests, respectively. The group efficiencies for vertically loaded pile groups ranged from 58%–139% and 107%–130% for horizontal loading.
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Al-Neami MA, Rahil FH, Al-Bayati KS (2016) Bearing capacity of batter piles embedded in sandy soil. International Journal of Geotechnical Engineering 10(5):529–532, DOI: https://doi.org/10.1080/19386362.2016.1203094
Al-Neami MA, Rahil FH, Al-Bayati KS (2020) Behavior of batter pile group models embedded in sandy soil under monotonic loading. Proceedings of 4th international conference on buildings, construction and environmental engineering, October 7–9, Istanbul, Turkey
Bhardwaj S, Singh SK (2014) Experimental study on model micropiles under oblique pullout loads. Proceedings of the Geo-Shanghai 2014 International conference on tunneling and underground construction, May 26–28, Shanghai, China
Chim-Oye W, Marumdee N (2013) Estimation of uplift pile capacity in the sand layers. International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies 4(1)
Fukui J (2006) Performance of seismic retrofits with high capacity micropiles. Proceedings of the 7th international society for micropiles workshop on micropiles, May 3–7, Schrobenhausen, Germany
Gerolymos N, Giannakou A, Anastasopoulos I, Gazetas G (2008) Evidence of beneficial role of inclined piles: Observations and summary of numerical analyses. Bulletin of Earthquake Engineering 6(4):705–722, DOI: https://doi.org/10.1007/s10518-008-9085-2
Giannakou A, Gerolymos N, TT, Anastasopoulos I (2010) Seismic behavior of batter piles: Elastic response. Journal of Geotechnical and Geoenvironmental Engineering 136(9):1187–1199, DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0000337
Kim J, Yun SK, Kang M, Kang G (2021) Behavior characteristics of single batter pile under vertical load. Applied Science 11(10), DOI: https://doi.org/10.3390/app11104432
Kitiyodom P, Matsumoto T (2002) A simplified analysis method for piled raft and pile group foundations with batter piles. International Journal for Numerical and Analytical Methods in Geomechanics 26(13):1349–1369, DOI: https://doi.org/10.1002/nag.248
Lutenegger AJ (2004) Low energy compacted concrete grout micropiles. Proceedings of the GeoSupport Conference on innovation and cooperation in the Geo-Industry, January 29–31, Orlando, Florida, United States
Lv FR, Yin JM, Jin YH (2011) Study on proportional relationship of lateral bearing capacity of batter pile by model experiments. Proceedings of 2011 international conference on electric technology and civil engineering, April 22–24, Lushan, China
Manoppo FJ (2010) Behaviour of the ultimate bearing capacity of single flexible batter pile under horizontal loads in homogeneous sand. Dinamika Teknik Sipil 10(2):116–119
Meyerhof GG, Ranjan G (1972) The bearing capacity of rigid piles under inclined loads in sand. i: Vertical piles. Canadian Geotechnical Journal 9(4):430–446, DOI: https://doi.org/10.1139/t72-043
Nazir A, Nasr A (2013) Pullout capacity of batter pile in sand. Journal of Advanced Research 4(2):147–154, DOI: https://doi.org/10.1016/j.jare.2012.04.001
Potyondy JG (1961) Skin friction between various soils and construction materials. Géotechnique 11(4):339–353, DOI: https://doi.org/10.1680/geot.1961.11.4.339
Sharma B, Hussain Z (2019) Behaviour of batter micropiles subjected to vertical and lateral loading conditions. Journal of Geoscience and Environment Protection 7(2):206–220, DOI: https://doi.org/10.4236/gep.2019.72014
Tsukada Y, Miura K, Tsubokawa Y, Otani Y, You GL (2006) Mechanism of bearing capacity of spread footings reinforced with micropiles. Soils and Foundations 46(3):367–376, DOI: https://doi.org/10.3208/sandf.46.367
Vu AT, Matsumoto T, Kobayashi SI, Shimono S (2017) Experimental study on pile foundations having batter piles subjected to combination of vertical and horizontal loading at 1-g field. Geotechnical Engineering Journal of the SEAGS & AGSSEA 48(3):12–24
Wolosick JR (2009) Ultimate micropile bond stresses observed during load testing in clays and sands. Proceedings of international foundation congress and equipment exposition on deep foundation and geo-support construction equipment, March 15–19, Orlando, Florida, USA
Acknowledgments
The first author would like to acknowledge the financial support for master’s degree Program in Civil Engineering, Faculty of Engineering, Chiang Mai University, Under the CMU Presidential Scholarship. The second author and forth author would like to express the gratitude to the Department of Civil Engineering, Faculty of Engineering, Chiang Mai University under RA Scholarship Scheme (No. RA/002/2561).
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Chaikla, K., Thongmunee, S., Jitsangiam, P. et al. Behaviors of Inclined Single Piles and Pile Groups Subjected to Vertical and Horizontal Loads Based on Physical Model Tests in Sand. KSCE J Civ Eng 27, 2813–2821 (2023). https://doi.org/10.1007/s12205-023-1394-0
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DOI: https://doi.org/10.1007/s12205-023-1394-0