Numerical Modeling of a Pile Group Subjected to Seismic Loading Using the Hypoplasticity Model
Received: 21 September 2022 | Revised: 14 October 2022 | Accepted: 15 October 2022 | Online: 15 December 2022
Corresponding author: A. S. Jawad
Abstract
Various simple and complicated models have been utilized to simulate the stress-strain behavior of the soil. These models are used in Finite Element Modeling (FEM) for geotechnical engineering applications and analysis of dynamic soil-structure interaction problems. These models either can't adequately describe some features, such as the strain-softening of dense sand, or they require several parameters that are difficult to gather by conventional laboratory testing. Furthermore, soils are not completely linearly elastic and perfectly plastic for the whole range of loads. Soil behavior is quite difficult to comprehend and exhibits a variety of behaviors under various circumstances. As a result, a more realistic constitutive model is needed, one that can represent the key aspects of soil behavior using simple parameters. In this regard, the powerful hypoplasticity model is suggested in this paper. It is classified as a non-linear model in which the stress increment is stated in a tonsorial form as a function of strain increment, actual stress, and void ratio. Eight material characteristics are needed for the hypoplastic model. The hypoplastic model has a unique way to keep the state variables and material parameters separated. Because of this property, the model can implement the behavior of soil under a variety of stresses and densities while using the same set of material properties.
Keywords:
constitutive modeling, hypoplasticity, pile, PLAXIS 3D, seismic loadingDownloads
References
R. A. Rajapakse, Geotechnical Engineering Calculations and Rules of Thumb, 1st ed. Oxford, UK: Butterworth-Heinemann, 2008. DOI: https://doi.org/10.1016/B978-075068764-5.50019-2
R. Mackevicius, "Possibility for Stabilization of Grounds and Foundations of Two Valuable Ancient Cathedrals on Weak Soils in Baltic Sea Region with Grouting," Procedia Engineering, vol. 57, pp. 730–738, Jan. 2013. DOI: https://doi.org/10.1016/j.proeng.2013.04.092
M. Tatyana, N. Alexander, and C. Anastasia, "Reinforced Sandy Piles for Low-rise Buildings," Procedia Engineering, vol. 117, pp. 239–245, Jan. 2015. DOI: https://doi.org/10.1016/j.proeng.2015.08.156
M. T. A. Chaudhary, M. Abe, and Y. Fujino, "Identification of soil–structure interaction effect in base-isolated bridges from earthquake records," Soil Dynamics and Earthquake Engineering, vol. 21, no. 8, pp. 713–725, Dec. 2001. DOI: https://doi.org/10.1016/S0267-7261(01)00042-2
B. Manna and D. K. Baidya, "Dynamic nonlinear response of pile foundations under vertical vibration—Theory versus experiment," Soil Dynamics and Earthquake Engineering, vol. 30, no. 6, pp. 456–469, Jun. 2010. DOI: https://doi.org/10.1016/j.soildyn.2010.01.002
M. T. A. Chaudhary, "FEM modelling of a large piled raft for settlement control in weak rock," Engineering Structures, vol. 29, no. 11, pp. 2901–2907, Nov. 2007. DOI: https://doi.org/10.1016/j.engstruct.2007.02.001
G. W. Blaney, "Dynamic Stiffness of Piles," in International Conference on Numerical Methods in Geotechnical Engineering, Blacksburg, VA, USA, 1976, pp. 1001–1012.
S. Prakash, S. Kumar, and K. Sreerama, "Pile-soil-pile interaction effects under earthquake loadings," in Eleventh World Conference on Earthquake Engineering, Acapulco, Mexico, Jun. 1996.
D. Pitilakis, M. Dietz, D. M. Wood, D. Clouteau, and A. Modaressi, "Numerical simulation of dynamic soil–structure interaction in shaking table testing," Soil Dynamics and Earthquake Engineering, vol. 28, no. 6, pp. 453–467, Jun. 2008. DOI: https://doi.org/10.1016/j.soildyn.2007.07.011
D. Giretti, "Modeling of piled raft foundations in sand," Ph.D. dissertation, University of Ferrara, Ferrara, Italy, 2010.
I. G. Abdulwahhab, "Experimental and Numerical Approach for the Behavior of Machinery Piled Raft Foundation Embedded within Cohesionless Soils," M.S. thesis, University of Technology, Baghdad, Iraq, 2017.
M. S. Asheghabadi and X. Cheng, "Investigation of Seismic Behavior of Clay-Pile Using Nonlinear Kinematic Hardening Model," Advances in Civil Engineering, vol. 2020, Jul. 2020, Art. no. e9617287. DOI: https://doi.org/10.1155/2020/9617287
L. Zhang, S. H. Goh, and H. Liu, "Seismic response of pile-raft-clay system subjected to a long-duration earthquake: centrifuge test and finite element analysis," Soil Dynamics and Earthquake Engineering, vol. 92, pp. 488–502, Jan. 2017. DOI: https://doi.org/10.1016/j.soildyn.2016.10.018
T. Thanapon and A. Goran, "Three-Dimensional Analysis of Soil-Pile-Structure Interaction Problem on High Rise Building on Improved Soft Soil," International Journal of Geomate, vol. 21, no. 88, pp. 54–60, Dec. 2021. DOI: https://doi.org/10.21660/2021.88.gxi293
D. Kolymbas, "A generalized hypoelastic constitutive law," in Proceedings of the 11th international conference on soil mechanics and foundation engineering, San Francisco, CA, USA, 1988.
B. Hua, C. Hao, J. Zhao, C. Wang, X. Zhang, and G. Wang, "Nonlinear FEM analysis of bearing capacity and sedimentation of single pile in multi-layered soils," in Proceedings of the International Conference on Computing in Civil and Building Engineering, Shanghai, China, 2010.
K. E. Anaraki, "Hypoplasticity Investigated: Parameter Determination and Numerical Simulation," M.S. thesis, Delft University of Technology, Delft, Netherlands, 2008.
T. Kadlicek, T. Janda, and M. Sejnoha, "Calibration of Hypoplastic Models for Soils," Applied Mechanics and Materials, vol. 821, pp. 503–511, 2016. DOI: https://doi.org/10.4028/www.scientific.net/AMM.821.503
R. Suchomel and D. Masin, "Calibration of an advanced soil constitutive model for use in probabilistic numerical analysis," in 1st International Symposium on Computational Geomechanics, Juan-les-Pins, France, Dec. 2009, pp. 265–274.
D. Masin, "Hypoplasticity for practical applications part 4: determination of material parameters," Ph.D. dissertation, University of Prague, Prague, Czech Republic, 2015.
I. Herle and G. Gudehus, "Determination of parameters of a hypoplastic constitutive model from properties of grain assemblies," Mechanics of Cohesive-frictional Materials, vol. 4, no. 5, pp. 461–486, 1999. DOI: https://doi.org/10.1002/(SICI)1099-1484(199909)4:5<461::AID-CFM71>3.0.CO;2-P
J. Olarte, B. Paramasivam, S. Dashti, A. Liel, and J. Zannin, "Centrifuge modeling of mitigation-soil-foundation-structure interaction on liquefiable ground," Soil Dynamics and Earthquake Engineering, vol. 97, pp. 304–323, Jun. 2017. DOI: https://doi.org/10.1016/j.soildyn.2017.03.014
J. Ramirez et al., "Site Response in a Layered Liquefiable Deposit: Evaluation of Different Numerical Tools and Methodologies with Centrifuge Experimental Results," Journal of Geotechnical and Geoenvironmental Engineering, vol. 144, no. 10, Oct. 2018, Art. no. 04018073. DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0001947
S. S. Nagula, Y.-W. Hwang, S. Dashti, and J. Grabe, "Seismic site response of layered saturated sand: comparison of finite element simulations with centrifuge test results," International Journal of Geo-Engineering, vol. 12, no. 1, Sep. 2021, Art. no. 26. DOI: https://doi.org/10.1186/s40703-021-00155-2
"COSMOS," COSMOS. http://strongmnotion.org/index.html.
S. Azhar, A. Patidar, and S. Jaurker, "Parametric Study of Piled Raft Foundation for High Rise Buildings," International Journal of Engineering Research & Technology, vol. 9, no. 12, pp. 548–555, 2020.
A. El-Attar, "Dynamic analysis of combined piled raft system (CPRS)," Ain Shams Engineering Journal, vol. 12, no. 3, pp. 2533–2547, Sep. 2021. DOI: https://doi.org/10.1016/j.asej.2020.12.014
B. S. Albusoda and O. Y. Almashhadany, "Effect of Allowable Vertical Load and Length/Diameter Ratio (L/D) on Behavior of Pile Group Subjected to Torsion," Journal of Engineering, vol. 20, no. 12, pp. 13–31, 2014.
L. Salem, "Effect Of Pile Spacing On The Behavior Of Piled Raft Foundation Under Free Vibration And Earthquake," Australian Journal of Basic and Applied Sciences, vol. 10, no. 12, pp. 240–247, Jan. 2016.
M. O. Karkush, "Impacts of Soil Contamination on the Response of Piles Foundation under a Combination of Loading," Engineering, Technology & Applied Science Research, vol. 6, no. 1, pp. 917–922, Feb. 2016. DOI: https://doi.org/10.48084/etasr.616
J. A. Alomari, "The Effect of Mass, Depth, and Properties of the Soil Below the Raft Foundation on the Seismic Performance of R.C. Plane Frames," Engineering, Technology & Applied Science Research, vol. 9, no. 5, pp. 4685–4688, Oct. 2019. DOI: https://doi.org/10.48084/etasr.2943
T. Nagao and D. Shibata, "Experimental Study of the Lateral Spreading Pressure Acting on a Pile Foundation During Earthquakes," Engineering, Technology & Applied Science Research, vol. 9, no. 6, pp. 5021–5028, Dec. 2019. DOI: https://doi.org/10.48084/etasr.3217
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