پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شماره‌ها | 641 |
| تعداد مقالات | 9,370 |
| تعداد مشاهده مقاله | 68,048,770 |
| تعداد دریافت فایل اصل مقاله | 30,807,203 |
A Simple Solution for Estimating the Smear Effect Permeability Ratio Using Finite Element Method | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 3، دوره 12، شماره 1 - شماره پیاپی 33، اردیبهشت 2024، صفحه 34-46 اصل مقاله (1.23 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2023.28956.1751 | ||
| نویسندگان | ||
| Rufaizal Che Mamat* 1؛ Azuin Ramli1؛ Sri Atmaja P. Rosyidi2 | ||
| 1Centre of Green Technology for Sustainable Cities, Department of Civil Engineering, Politeknik Ungku Omar, Jalan Raja Musa Mahadi, Ipoh 31400, Perak, Malaysia | ||
| 2Department of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Jalan Brawijaya, Bantul, Yogyakarta, 55183, Indonesia | ||
| تاریخ دریافت: 24 آبان 1401، تاریخ بازنگری: 16 اردیبهشت 1402، تاریخ پذیرش: 14 تیر 1402 | ||
| چکیده | ||
| The installation of a vertical drains system beneath the embankment results in enhanced soil consolidation in soft soil. This article explores the behaviour of soft soil stabilized with prefabricated vertical drains (PVDs) beneath embankments through finite element analysis. A multi-drain analysis, which varied the smear effect permeability ratio using both equivalent and plane strain models, was performed. Back-calculation of the permeability ratio of the smear effect is employed to adjust the model parameters. The analytical formulation employed the Cam-clay concept in combination with the smear effects. The study revealed that PVDs installation in the soft soil beneath the embankment increased the settlement rate and improved pore water pressure dissipation. Accurate prediction requires the estimation of the equivalent horizontal permeability using appropriate values of the smear effect permeability ratio. Incorporating the smear effect into the numerical analysis of vertical drains improved prediction accuracy. The article proposes a new approach for estimating the smear effect permeability ratio for soft soil stabilized with PVDs. | ||
| کلیدواژه‌ها | ||
| Soft soil؛ Smear zone؛ Road embankment؛ Prefabricated vertical drains؛ Finite element method | ||
| مراجع | ||
|
[1] Mamat RC, Kasa A, Razali SFM. A Review of Road Embankment Stability on Soft Ground: Problems and Future Perspective. IIUM Eng J 2019;20:32–56. https://doi.org/10.31436/iiumej.v20i2.996.
[2] Ayeldeen M, Tschuchnigg F, Thurner R. Case study on soft soil improvement using vertical drains—field measurements and numerical studies. Arab J Geosci 2021;14:343. https://doi.org/10.1007/s12517-021-06701-7.
[3] Qi C, Li R, Gan F, Zhang W, Han H. Measurement and Simulation on Consolidation Behaviour of Soft Foundation Improved with Prefabricated Vertical Drains. Int J Geosynth Gr Eng 2020;6:23. https://doi.org/10.1007/s40891-020-00208-z.
[4] Kjellman W. Accelerating consolidation of fine grained soils by means of cardboard wicks. 2nd Int. Conf. Soil Mech. Found. Eng., Rotterdam: 1948, p. 302–305.
[5] Bergado DT, Chaiyaput S, Artidteang S, Nguyen TN. Microstructures within and outside the smear zones for soft clay improvement using PVD only, Vacuum-PVD, Thermo-PVD and Thermo-Vacuum-PVD. Geotext Geomembranes 2021;48:828–43. https://doi.org/10.1016/j.geotexmem.2020.07.003.
[6] Mamat RC, Kasa A, Mohd Razali SF. Comparative Analysis of Settlement and Pore Water Pressure of Road Embankment on Yan soft soil Treated with PVDs. Civ Eng J 2019;5:1609–18. https://doi.org/10.28991/cej-2019-03091357.
[7] Mamat RC, Ramli A. Evolutionary polynomial regression for predicting the unconfined compressive strength of lime-stabilized. Suranaree J Sci Technol 2023;30:010212(1-7).
[8] Indraratna B, Redana IW. Laboratory determination of smear zone due to vertical drain installation. J Geotech Geoenvironmental Eng 1998;124:180–4. https://doi.org/10.1061/(ASCE)1090-0241(1998)124:2(180).
[9] Barron RA. Consolidation of fine-grained soils by drain wells. Trans ASCE 1948;113:718–724.
[10] Bergado DT, Asakami H, Alfaro MC, Balasubramaniam AS. Smear effects of vertical drains on soft Bangkok clay. J Geotech Eng 1991;117:1509–1530. https://doi.org/10.1061/(ASCE)0733-9410(1991)117:10(1509).
[11] Mamat RC, Ramli A, Khahro SH, Yusoff NIM. Numerical Simulation and Field Measurement Validation of Road Embankment on Soft Ground Improved by Prefabricated Vertical Drains: A Comparative Study. Appl Sci 2022;12:8097. https://doi.org/10.3390/app12168097.
[12] Indraratna B, Redana IW. Plane strain modeling of smear effects associated with vertical drains. J Geotech Geoenvironmental Eng 1997;123:474–478. https://doi.org/10.1061/(ASCE)1090-0241(1997)123:5(474).
[13] Kamash W El, Hafez K, Zakaria M, Moubarak A. Improvement of Soft Organic Clay Soil Using Vertical Drains. KSCE J Civ Eng 2021;25:429–441. https://doi.org/10.1007/s12205-020-0561-9.
[14] Parsa-Pajouh A, Fatahi B, Vincent P, Khabbaz H. Trial Embankment Analysis to Predict Smear Zone Characteristics Induced by Prefabricated Vertical Drain Installation. Geotech Geol Eng 2014;32:1187–210. https://doi.org/10.1007/s10706-014-9789-9.
[15] Plaxis. Reference Manual. The Netherlands: Delft University of Technology and Plaxis b.v.; 2008.
[16] Mamat RC, Ramli A, Samad AM, Kasa A, Razali SFM, Omar MBHC. Stability Assessment of Embankment on Soft Soil Improved with Prefabricated Vertical Drains Using Empirical and Limit Equilibrium Approaches. Int J Adv Trends Comput Sci Eng 2019;8:444–9. https://doi.org/10.30534/ijatcse/2019/6481.62019.
[17] Rezania M, Nguyen H, Zanganeh H, Taiebat M. Numerical analysis of Ballina test embankment on a soft structured clay foundation. Comput Geotech 2018;93:61–74. https://doi.org/10.1016/j.compgeo.2017.05.013.
[18] AASHTO. Bridge Design Specifications. 6th ed. Washington, DC, US.: American Association of State Highway and Transportation Officials; 2012.
[19] Hird CC, Pyrah IC, Russell D, Cinicioglu F. Modelling the effect of vertical drains in two-dimensional finite element analyses of embankments on soft ground. Can Geotech J 1995;32:795–807. https://doi.org/10.1139/t95-077.
[20] Rixner JJ, Kraemer SR, Smith AD. Prefabricated vertical drains. Washington, DC, US.: 1986.
[21] Hird CC, Moseley VJ. Model study of seepage in smear zones around vertical drains in layered soil. Géotechnique 2000;50:89–97. https://doi.org/10.1680/geot.2000.50.1.89.
[22] Holtz RD, Jamiolkowski M, Lancellotta R, Pedroni S. Behaviour of bent prefabricated vertical drains. 12th Int. Conf. Soil Mech. Found. Eng., vol. 3, Rio De Janeiro: 1988, p. 1657–60.
[23] Zhang Z, Ye GB, Xu Y. Comparative analysis on performance of vertical drain improved clay deposit under vacuum or surcharge loading. Geotext Geomembranes 2018;46:146–54. https://doi.org/10.1016/j.geotexmem.2017.11.002. | ||
|
آمار تعداد مشاهده مقاله: 678 تعداد دریافت فایل اصل مقاله: 132 |
||