A study on settlements of road embankments on soft ground using vertical drains

  • Trinh Dinh Toan

    Thuyloi University, No 175 Tay Son Street, Hanoi, Vietnam
Email: Trinhdinhtoan@tlu.edu.vn
Từ khóa: settlement, ground treatment, embankment, soft soil, vertical drain

Tóm tắt

In civil engineering, the study of embankment settlement on soft ground is a vital geotechnical task in order to maintain serviceability of the road embankment, pavement, and facilities. This paper presents a study on settlements of road embankment on soft ground using vertical drains, including prefabricated-vertical drain (PVD), sand drain (SD), and sand compaction pile (SCP) on a number of packages of Hanoi – Haiphong Expressway Construction Project. The effectiveness of settlement prediction of vertical drain solutions is evaluated considering the ratios between the observed consolidation settlements and settlements predicted in the Detailed Design, in relation to the thickness of soft soil and the depth of treatment. Regression analysis is used to establish the correlation between the observed settlement and the height of embankment. The results show that (i) the design generally overestimated settlements; (ii) the ratios between observed and predicted settlements tend to positively correlate with the thickness of soft soil and the depth of treatment, and (iii) there are positive correlations between the height of embankment and the observed settlement. These correlations can be a valuable source of reference for anticipating settlements in basic design of highway projects with soft ground treated by vertical drains, in the regions that have geological stratum similar to Thabinh and Haihung formations of Bacbo Plain

Tài liệu tham khảo

[1]. W.Herman, L. Yudhi, R.S. Trihanindyo, A.Musta, T.K. Putu, The Comparison of the Soft Clay Settlement under an Embankment Load Using Field Instrumentation and Empirical Formulation. International Journal of GEOMATE, 21 (2021) 93-102. https://doi.org/10.21660/2021.84.j2151
[2]. M. Salem, R. El-sherbiny, Comparison of Measured and Calculated Consolidation Settlements of Thick under Consolidated Clay, Alexandria Eng. J., 53 (2014) 107–117. https://doi.org/10.1016/j.aej.2013.11.002
[3]. P.T.K. Sari, Y. Lastiasih, Prediction of Settlement Ratio of Compressible Soil under Embankment Load Using Empirical Correlation and Linear Regression, ARPN J. Eng. Appl. Sci., 12 (2017) 443–448.
[4]. M. Rezania, M. Bagheri, M.M. Nezhad, N. Sivasithamparam, Creep Analysis of an Earth Embankment on Soft Soil Deposit with and without PVD Improvement, Geotextiles and Geomembranes, 45 (2017) 537–547. https://doi.org/10.1016/j.geotexmem.2017.07.004
[5]. N. Ramli, M. Hossein, S. Puspanathan, G. See-Sew, Field Performance of Transition Rigid Piled Embankment with Surcharged Vertical Drain over Soft Ground, International Journal of GEOMATE, 13 (2017) 151 – 155. https://doi.org/10.21660/2017.35.60892
[6]. M. Rezania, H. Nguyen , H. Zanganeh, M. Taiebat, Numerical Analysis of Ballina Test Embankment on a Soft Structured Clay Foundation, Computers and Geotechnics, 93 (2018) 61–74. https://doi.org/10.1016/j.compgeo.2017.05.013
[7]. B.Vesterberg, M. Andersson, Settlement and Pore Pressure Behavior and Predictions of Test Embankments on an Organic Clay, International Journal of Geotechnical Engineering, 16 (2022) 1-19. https://doi.org/10.1080/19386362.2022.2030129
[8]. A. Amavasai, N. Sivasithamparam, J. Dijkstra, M. Karstunen, Consistent Class A & C Predictions of the Ballina Test Embankment, Computers and Geotechnics, 93 (2018) 75–86. https://doi.org/10.1016/j.compgeo.2017.05.025
[9]. S.A. Degago, G. Grimstad, Evaluation of Soil Parameters for Creep Calculations of Field Cases. Proceedings of the 17th Nordic Geotechnical Meeting, Reykjavik, (2016) 651–660.
[10]. G. Mesri, J.R. Funk, Settlement of the Kansai International Airport Islands. Journal of Geotechnical and Geo-Environmental Engineering, 141 (2015) 1–16. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001224
[11]. A. Muhammad, B.M. Indrasurya, E.M. Noor, F.A. Yulian, Road Embankment Full-Scale Investigation on Soft Soil with Geotextile Stabilization, International Journal of GEOMATE, 19 (2020) 145 – 152. https://doi.org/10.21660/2020.71.04022
[12]. Z. Adnan, N.A. Mohamad , K.Azman, F. Mohd, M.D. Azlan, N.R. Siti, S.E.A.R. Engku, Settlement Behaviour of Parit Nipah Peat under Static Embankment, International Journal of GEOMATE, 17 (2019) 151-155. https://doi.org/10.21660/2019.60.8263
[13]. A.Q.A. Mary, D.L.C.Miller, The Effect of Void Ratio, Moisture Content and Vertical Pressure on the Hydro Compression Settlement of Copper Mine Tailing, International Journal of GEOMATE, 14 (2018) 82-89. https://doi.org/10.21660/2018.44.7108
[14]. YOOSHIN-KPT, Jsc., Detail Design, HaNoi – HaiPhong Expressway Construction Project, 2010.
[15]. TEDI, Geological Report of Soil Survey (Detailed Survey). HaNoi – HaiPhong Expressway Construction Project, 2009.
[16]. Korean Expressway Cooperation, Project Appraisal Report on Basic Design. HaNoi – HaiPhong Expressway Project, 2008.
[17]. MEINHARDT International, Observation Data on Settlements, HaNoi – HaiPhong Expressway Construction Project, 2015.
[18]. TCCS 41: 2022/TCĐBVN, Specification for Survey and Design of Road Embankments on Soft Soil. Vietnam Ministry of Transport, 2022.
[19]. V.L. Hiep, T.P. Binh, S.H. Lanh, D.N. Manh, Analysis of Consolidation Degree Using Settlement Observation Results and Asaoka Method: A Case Study of Route Km 94+340 -:- Km 94 + 440 of Hanoi – Haiphong Highway Construction Project, International Journal of Civil Engineering and Technology, 8 (2017) 91-100.
[20]. T.T. Hoang, W.Y. Jang, A Case Study on Soft Soil Improvement of Hanoi - Haiphong expressway project in Vietnam, Geotechnics for Sustainable Development - Geotec Hanoi, 2013.

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