Dewatering Effect on Piles Behaviour in Piled Raft System Due to Use PLAXIS-3D

Ghusoon Sadiq Al-Qaisee

doi:10.15866/irece.v12i5.20563

Dewatering Effect on Piles Behaviour in Piled Raft System Due to Use PLAXIS-3D

Ghusoon Sadiq Al-Qaisee^(1*)

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/irece.v12i5.20563

Abstract

The study has aimed to investigate the piles behaviour in the piled raft system through the loading process with the nearby line drain influence utilized as a dewatering operation through the two soil layers below the piles group. The pile behaviour has included axial force, bending moment, lateral displacement, and vertical displacement at different piles locations within the group, the corner, the edge and the centre. The three-dimensional finite element PLAXIS 3D has been used to imitate the trouble. The soil has been supposed to be consisting of two layers deposit, the upper layer has been the clayey layer obeying the soft soil criterion, and the other layer has been the sandy layer obeying the Mohr-Coulomb failure principle. The results have indicated a significant influence of line drain on the group's corner and edge piles, while the line drain's insignificant effect at other piles has been observed. Furthermore, after dewatering, the axial forces and the bending moment have been highly increased for external piles, while a contrary behaviour for centre piles has been noticed. All examined piles have suffered lateral and vertical displacement after dewatering.
Copyright © 2021 Praise Worthy Prize - All rights reserved.

Keywords

Dewatering; Line Drain; Model Pile; Piled Raft

Full Text:

PDF

References

B. Singh, and N.T. Singh, Influence of piles on load-Vertical displacement Behavior of Raft Foundation, India, International Journal of Engineering Science and Technology (IJEST), 3(12):8385-8394, 2011.

C. Zeng, G. Zheng, X.Zhou, X. Xue, H. Zhou, behaviours of wall and soil during pre-excavation dewatering under different foundation pit widths, Computers and Geotechnics, Volume 115, 103169, 2019.
https://doi.org/10.1016/j.compgeo.2019.103169

E. Chong, and D. Ong, Data-Driven Field Observational Method of a Contiguous Bored Pile Wall System Affected by Accidental Groundwater Drawdown, Geosciences, 10(7), 268; 2020.
https://doi.org/10.3390/geosciences10070268

E. M. Comodromos, M. C. Papadopoulou, and K. Georgiadis, Design procedure for the modelling of jet-grout column slabs supporting deep excavations, Computer and Geotechnics, 100, 2018.
https://doi.org/10.1016/j.compgeo.2018.04.008

G.S. Al-Qaisee, M.D. Ahmed and B.A. Ahmed, Performance of piled raft foundation under the effect of dewatering nearby open pit, IOP conference Ser.: Mater. Eng.737 012081,2020
https://doi.org/10.1088/1757-899X/737/1/012081

J. Chai, S. Shen, W. Ding, J. Carter, Numerical Investigation of the Failure of a Building in Shanghai, China, Computers and Geotechnics, 55 (2014).
https://doi.org/10.1016/j.compgeo.2013.10.001

J. Cho, J. Lee, S. Jeong, J. Lee, the Settlement behavior of Piled Raft in Clay Soil, Ocean Engineering, 53, 153-163, 2020.
https://doi.org/10.1016/j.oceaneng.2012.06.003

L. Gu, Z.Wang, Q. Huang, G. Ye, F. Zhang, Numerical investigation into ground treatment to mitigate the permanent train-induced deformation of pile-raft-soft soil system, Transportation Geotechnics, Volume 24, 100368, 2020.
https://doi.org/10.1016/j.trgeo.2020.100368

L. Pitteloud, and J. Meier, High-Frequency Monitoring Results of a Piled Raft Foundation under Wind Loading, International Journal of Geotechnical and Geological Engineering Vol:13, No:3 (2019).

L. Yuan, Z. Cui, J.Yang and Y. Jia, Land subsidence induced by the engineering-environmental effect in Shanghai, China, Arabian Journal of Geosciences volume 13, Article number: 251, 2020.
https://doi.org/10.1007/s12517-020-5224-0

M.D. Ahmed, B. Al-Obaidy and A. Shiekhah, Dewatering Effect on Virtual Vertical displacement of Pile Foundation: case study in Bab AL-Mudham area, Baghdad-Iraq, Journal of the Federation of Arab Universities for Engineering Studies and Research Vol. 22, No.2, 2015.

M. Apen, Soil-structure interaction of a permanent steel fibre reinforced underwater concrete floor system, MSc Thesis, Geo-Engineering, the Delft University of Technology, Netherlands, 2019.

M. Khanmohammadi, K. Fakharian, Evaluation of performance of piled-raft foundations on soft clay: A case study, Geomechanics and Engineering, Vol. 14, No. 1, 43-50 (2018).

M. Korff, R.J. Mair, and A. F. VanTol, Pile-Soil Interaction and Settlement Effects Induced by Deep Excavation, Geotech. Geoenviron. Eng., 142 (8) (2016)
https://doi.org/10.1061/(ASCE)GT.1943-5606.0001434

M. Shivanand and S. Baleshwar, Behavior of large piled-raft foundation on clay soil, Ocean Eng. , 149, 205-216 , 2018.
https://doi.org/10.1016/j.oceaneng.2017.12.029

M. Zumrawi, E. and Hassan, Effect of Excavation Dewatering on Adjacent Structures, University of KEJ, 6 (2), Pp. 22-29 (2016).

N. K. Meena and S. Nimbalkar, Effect of Water Drawdown and Dynamic Loads on Piled Raft: Two-Dimensional Finite Element Approach, Infrastructures, 4, 75, (2019).
https://doi.org/10.3390/infrastructures4040075

Plaxis 3D foundation; Material models manual Vol1.6 (2020).

Q. Farooq , A. Shaath, Appraisal of Hybrid Foundations on Loose Granular Soil of Western Saudi Arabia, Proceedings of Engineering and Technology Innovation, vol. 16, pp. 13 - 22 , 2020
https://doi.org/10.46604/peti.2020.5515

R.P. Cunha, H.G. Poulos, Importance of the Excavation Level on the Prediction of the Settlement Pattern from Piled Raft Analyses, Soils and Rocks, 41(1): 91-99, 2018
https://doi.org/10.28927/SR.411091

S. Liew and D. Ting, Design of Full Top-Down Basement Construction with Drain Raft Concept Over Coastal Weathered Sedimentary Formation in Malaysia, Proceedings of the 2nd International Symposium on Asia Urban Geo-Engineering pp 616-630, 2018
https://doi.org/10.1007/978-981-10-6632-0_48

S. Meissner, H. Quick, R. Katzenbach, and A. Werner, An innovative dewatering system to reduce the environmental impact, Proceedings of the XVII ECSMGE, ISBN 978-9935-9436-1-3 (2019).

V. Kalpakci, S. Ozturk, H. Murat Algin, and A. Burak Ekmen, 3D Settlement Analysis of Underpinning Piles Under raft Foundation Subjected to Non-uniform Vertical Loading, Proceeding of China-Europe Conference, Geotechnical Engineering, SSGG,pp.973-977, 2018.
https://doi.org/10.1007/978-3-319-97115-5_19

W. Lu, D. Zhao and W. Lan, The effect of excavation dewatering and supporting structure deformation on soil settlement, Vol. 20, Bund. 9. (2015).

X.T. Tran, and T.M. Nguyen, Negative Skin Friction on Concrete Piles in Soft Subsoil of the Basis of the Shafting Rate of Piles and the vertical displacement rate of surrounding Soils, Slovak Journal of Civil Engineering, 2003/3 Pages 13-20.

Z. Cui, Land Subsidence Induced by the Engineering-Environmental Effect, ISBN: 978-981-10-8040-1, Springer, 2018.
https://doi.org/10.1007/978-981-10-8040-1_1

Ali, A., Kareem, H., Statistical and Numerical Study on the Performance of Skirted Foundations in Clayey Soil, (2021) International Review of Civil Engineering (IRECE), 12 (1), pp. 20-30.
https://doi.org/10.15866/irece.v12i1.18713

Sharo, A., Alhowaidi, Y., Al-Tawaha, M., Improving Properties of Expansive Soil Using Cement, Quick Lime and Cement-Lime Blend, (2019) International Review of Civil Engineering (IRECE), 10 (2), pp. 94-103.
https://doi.org/10.15866/irece.v10i2.16064

Refbacks

There are currently no refbacks.

Username
Password
Remember me