Innovative Approach to Load-Settlement Curve for Improved Soil Analysis Using BWM Approach in Disaster Mitigation and Resilient Design

Gitartha Kalita, Palash Jyoti Hazarika

Abstract


Understanding the load transfer behavior at the interface between piles and soil is crucial for ensuring the stability and effectiveness of pile foundations. The allowable load that a pile can bear depends on various factors such as soil type, pile dimensions, and the interaction between the pile and surrounding soil. This study delves into the intricacies of load transfer at the pile-soil interface and proposes an innovative approach to accurately calculate these loads. Drawing upon an extensive review of existing literature for the last 3 decades, six studies presenting load transfer equations were identified as foundational to this research. Load-settlement curves were then generated using Octave software, accommodating a range of pile dimensions and soil types. To further refine load calculations, codes were developed to compute allowable bearing loads based on formulas from the Indian Standard code. Additionally, a decision tree model implemented in Python was utilized to predict the optimal load calculation methods for specific soil and pile conditions. Experimental findings unveiled significant variations in load-bearing capacities across different soil types and pile dimensions. The research further investigates six distinct methods for assessing allowable load—Point by Point Curve, Cubic Root Curve, Hiramaya Curve, Hyperbolic Curve, Krasinski Curve, and Root Curve. Each method was analyzed for its performance in load-settlement behavior, with the Hiramaya Curve emerging as the most conservative and reliable due to its lower allowable load estimates, which offer a higher factor of safety. A significant contribution of this study is the development of a merged curve that synthesizes the strengths of these six methods. This study initially evaluated weightage of each study using Best Worst Method (BWM) and then with the help of weightage a merged load settlement curve is drawn for various soil and various dimensions. The merged curve integrates unique parameters like load-bearing capacities and settlement behaviors, providing a comprehensive load-settlement model applicable across six soil types and five classes of pile dimensions. This tool enhances the accuracy and versatility of pile foundation design, offering geotechnical engineers a robust and adaptable model for a wide range of conditions

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References


Dutta, S. C., & Roy, R. (2002). A critical review on idealization and modeling for interaction among soil–foundation–structure system. Computers & Structures, 80(20-21), 1579-1594.

Reese, L. C., Isenhower, W. M., & Wang, S. T. (2005). Analysis and design of shallow and deep foundations, 10, John Wiley & Sons.

Kempfert, H. G., & Gebreselassie, B. (2006). Pile foundation. Excavations and Foundations in Soft Soils, 349-460.

Meyerhof, G. G. (1976). Bearing capacity and settlement of pile foundations. Journal of the Geotechnical Engineering Division, 102(3), 197-228.

Mattes, N. S., & Poulos, H. G. (1969). Settlement of single compressible pile. Journal of the Soil Mechanics and Foundations Division, 95(1), 189-207.

Poulos, H. G., & Davis, E. H. (1980). Pile foundation analysis and design (Vol. 397, pp. 233-248). New York: Wiley.

Hirayama, H. (1988). A unified base bearing capacity formula for piles. Soils and Foundations, 28(3), 91-102.

Zhu, H., & Chang, M. F. (2002). Load transfer curves along bored piles considering modulus degradation. Journal of Geotechnical and Geoenvironmental Engineering, 128(9), 764-774.

Coyle, H. M., & Reese, L. C. (1966). Load transfer for axially loaded piles in clay. Journal of the Soil Mechanics and Foundations Division, 92(2), 1-26.

Coyle, H. M., & Sulaiman, I. H. (1967). Skin friction for steel piles in sand. Journal of the Soil Mechanics and Foundations Division, 93(6), 261-278.

Guo, W. D., & Randolph, M. F. (1998). Rationality of load transfer approach for pile analysis. Computers and Geotechnics, 23(1-2), 85-112.

Vijivergiya, V. N. (1977). Load-movement characteristics of piles. In 4th Symp. of Waterway, Port, Coastal and Ocean Div., ASCE (Vol. 2, pp. 269-284).

Verbrugge, J. C. (1981). Évaluation du tassement des pieux à partir de l'essai de pénétration statique. Revue Française de Géotechnique, (15), 75-82.

Frank, R., & Zhao, S. R. (1982). Estimating the settlement of axially loaded bored piles in fine sand by PMT data. Bull. Liaison LPC, 119.

Frank, R. (1985). Recent developments in the prediction of pile behavior from pressuremeter tests. From theory to practice on deep foundations, UFRGS, Porto Alegre, Brazil.

Hirayama, H. (1990). Load-settlement analysis for bored piles using hyperbolic transfer functions. Soils and Foundations, 30(1), 55-64.

American Petroleum Institute (API). (1993). Recommended practice for planning, designing, and constructing fixed offshore platforms–Working stress design, 20th Ed., Washington, DC.

Bohn, C., Lopes dos Santos, A., & Frank, R. (2017). Development of axial pile load transfer curves based on instrumented load tests. Journal of Geotechnical and Geoenvironmental Engineering, 143(1), 04016081.

Randolph, M. F., & Wroth, C. P. (1978). Analysis of deformation of vertically loaded piles. Journal of the Geotechnical Engineering Division, 104(12), 1465-1488.

Briaud, J. L., & Tucker, L. (1984). Piles in sand: a method including residual stresses. Journal of Geotechnical Engineering, 110(11), 1666-1680.

Chow, Y. K. (1987). Axial and lateral response of pile groups embedded in nonhomogeneous soils. International Journal for Numerical and Analytical Methods in Geomechanics, 11(6), 621-638.

Poulos, H. G. (1987). Analysis of residual stress effects in piles. Journal of Geotechnical Engineering, 113(3), 216-229.

Polo, J. M., & Clemente, J. L. (1988). Pile-group settlement using independent shaft and point loads. Journal of Geotechnical Engineering, 114(4), 469-487.

Kiousis, P. D., & Elansary, A. S. (1987). Load settlement relation for axially loaded piles. Journal of Geotechnical Engineering, 113(6), 655-661.

Kaniraj, S. R. (1993). A semi-empirical equation for settlement ratio of pile foundations in sand. Soils and Foundations, 33(2), 82-90.

Zhu, H., & Chang, M. F. (2002). Load transfer curves along bored piles considering modulus degradation. Journal of Geotechnical and Geoenvironmental Engineering, 128(9), 764-774.

Bohn, C., Lopes dos Santos, A., & Frank, R. (2017). Development of axial pile load transfer curves based on instrumented load tests. Journal of Geotechnical and Geoenvironmental Engineering, 143(1), 04016081.

Zhou, Z., Zhang, Z., Chen, C., Xu, F., Xu, T., Zhu, L., & Liu, T. (2022). Application of load transfer method for bored pile in loess area. European Journal of Environmental and Civil Engineering, 26(10), 4457-4475.

Balakrishnan, E. G., Balasubramaniam, A. S., & Phien-wej, N. (1999). Load deformation analysis of bored piles in residual weathered formation. Journal of Geotechnical and Geoenvironmental Engineering, 125(2), 122-131.

Kim, S., Jeong, S., Cho, S., & Park, I. (1999). Shear load transfer characteristics of drilled shafts in weathered rocks. Journal of Geotechnical and Geoenvironmental Engineering, 125(11), 999-1010.

Shen, W. Y., Chow, Y. K., & Yong, K. Y. (2000). A variational approach for the analysis of pile group–pile cap interaction. Geotechnique, 50(4), 349-357.

Dyson, G. J., & Randolph, M. F. (2001). Monotonic lateral loading of piles in calcareous sand. Journal of Geotechnical and Geoenvironmental Engineering, 127(4), 346-352.

Reese, L. C., Cox, W. R., & Koop, F. D. (1974). Analysis of laterally loaded piles in sand. In Offshore Technology Conference (pp. OTC-2080). OTC.

O’Neill, M. W., & Murchinson, J. M. (1983). Fan evaluation of py relationships in sands. A report to the American Petroleum Institute.

Al-Homoud, A. S., Fouad, T., & Mokhtar, A. (2004). Evaluating accuracy for two empirical methods in predicting settlement of drilled shafts. Geotechnical & Geological Engineering, 22, 245-267.

Vesic, A. S. (1977). Design of pile foundations. NCHRP synthesis of highway practice, (42).

Mostafa, Y. E., & El Naggar, M. H. (2004). Response of fixed offshore platforms to wave and current loading including soil–structure interaction. Soil Dynamics and Earthquake Engineering, 24(4), 357-368.

Chang, M. F., & Zhu, H. (2004). Construction effect on load transfer along bored piles. Journal of Geotechnical and Geoenvironmental Engineering, 130(4), 426-437.

Kim, H. J., Mission, J. L. C., & Park, I. S. (2007). Analysis of static axial load capacity of single piles and large diameter shafts using nonlinear load transfer curves. KSCE Journal of Civil Engineering, 11, 285-292.

Hyeongjoo, K., Joseleo, M., Youngsun, S., Jaehong, B., & Pilsoon, B. (2008). Axial load capacity prediction of single piles in clay and sand layers using nonlinear load transfer curves. Journal of the Korean Society of Geotechnical Engineering, 24(5), 117-123.

Chou, Y. C., & Hsiung, Y. M. (2009). A normalized equation of axially loaded piles in elasto-plastic soil. J. Geo Eng, 4(1), 1-7.

Bradshaw, A. S., Haffke, S., & Baxter, C. D. (2012). Load transfer curves from a large-diameter pipe pile in silty soil. In Full-scale testing and foundation design: Honoring Bengt H. Fellenius (pp. 590-601).

Lim, A., Kwanda, A., & Rahardjo, P. P. (2013). The study of tz and qz curves on bored pile based on the results of instrumented pile load test in medium and stiff clays. Proceedings of Pile, 2(4th).

Reese, L. C., & O'NEIL, M. W. (1988). Field load tests of drilled shafts. In International Geotechnical Seminar on Deep Foundations on Bored and Auger Piles, 1 (pp. 145-191).

Ismail, A. (2014). Self-learning framework for estimating load transfer curves from uninstrumented pile loading tests. In Geo-Congress 2014: Geo-characterization and Modeling for Sustainability (pp. 1806-1815).

Nanda, S., & Patra, N. R. (2014). Theoretical load-transfer curves along piles considering soil nonlinearity. Journal of Geotechnical and Geoenvironmental Engineering, 140(1), 91-101.

Abchir, Z., Burlon, S., Frank, R., Habert, J., & Legrand, S. (2016). t–z curves for piles from pressuremeter test results. Géotechnique, 66(2), 137-148.

Grecu, S., Barari, A., & Ibsen, L. B. (2019). Axial load-transfer curves for suction bucket foundations in sand. In ISOPE International Ocean and Polar Engineering Conference (pp. ISOPE-I). ISOPE.

Octave, G. N. U. (2008). A high-level language, primarily intended for numerical computations, version 3.0. 3.

Rezaei, J., (2015). Best-worst multi-criteria decision-making method. Omega 53,49–57

Gerwick, B. C., & Brauner, H. A. (1978). Design of high-performance prestressed concrete piles for dynamic loading. Behavior of deep foundations, 323-334.

Mohammadi, A., Ebadi, T., Eslami, A., & van der Zee, S. E. (2019). Axial compressive bearing capacity of piles in‎ oil-contaminated sandy soil using FCV. Marine Georesources & Geotechnology, 37(2), 164-179.

Mizuno, R., Dong, L. P., Karya, A., & Nguyen, T. T. (2023, December). Design Challenges of Large Diameter and Long Steel Pipe Pile in High Plasticity Clay at Patimban Port Development Project. In International Conference on Geotechnics for Sustainable Infrastructure Development (pp. 203-220). Singapore: Springer Nature Singapore.

Jayasree, P. K., Arun, K. V., Oormila, R., & Sreelakshmi, H. (2018). Lateral load capacity of piles: a comparative study between indian standards and theoretical approach. Journal of The Institution of Engineers (India): Series A, 99, 587-593.

Liu, Z., Zhang, A., Xu, J., Zhou, C., & Zhang, L. (2021). Calculation model and bearing capacity optimization method for the soil settlement between piles in geosynthetic-reinforced pile-supported embankments based on the membrane effect. Plos one, 16(8), e0256190.

Lv, Y., & Zhang, D. (2018). Geometrical effects on the load transfer mechanism of pile groups: three-dimensional numerical analysis. Canadian Geotechnical Journal, 55(5), 749-757..

Gwizdala, K., & Krasinski, A. (2013, September). Bearing capacity of displacement piles in layered soils with highly diverse strength parameters. In Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering (pp. 2-5).

Mascarucci, Y., Miliziano, S., & Mandolini, A. (2016). 3M analytical method: evaluation of shaft friction of bored piles in sands. Journal of Geotechnical and Geoenvironmental Engineering, 142(3), 04015086.

Abbas, H. O. (2021). Compressive capacity of conventional and under reamed piles in soft clay. In IOP Conference Series: Materials Science and Engineering (Vol. 1076, No. 1, p. 012094). IOP Publishing.

Ismael, N. F. (2001). Axial load tests on bored piles and pile groups in cemented sands. Journal of geotechnical and geoenvironmental engineering, 127(9), 766-773.

Krasiński, A. (2012). Proposal for calculating the bearing capacity of screw displacement piles in non-cohesive soils based on CPT results. Studia Geotechnica et Mechanica, 34(4), 41-51.

Greco, S., Figueira, J., & Ehrgott, M. (2016). Multiple criteria decision analysis. New York: Springer.

Guo, S., Zhao, H., 2017. Fuzzy best-worst multi-criteria decision-making method and its applications. Knowl.-Based Syst. 121, 23–31..

Abouhashem Abadi, F., Ghasemian Sahebi, I., Arab, A., Alavi, A., Karachi, H., 2018.Application of best-worst method in evaluation of medical tourism development strategy. Decis. Sci. Lett., 77–86


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