Civil Engineering and Architecture Vol. 12(3), pp. 1327 - 1337
DOI: 10.13189/cea.2024.120303
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The Role of High Tensile Geotextile Above Rigid Inclusions to Support Embankment on Peat

Yasin Widodo ^1,2,*, Samira A. Kamaruddin ¹, Ramli Nazir ³, Idrus M. Alatas ⁴, Agus Himawan ⁵, Reguel Mikhail ^2
1 Department of Engineering and Technology, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Malaysia
² PT. Bauer Pratama Indonesia, 12430, Jakarta, Indonesia
³ Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, Malaysia
⁴ National Science and Technology Institute (ISTN), 12630, Jakarta, Indonesia
⁵ PT. Promisco Sinergi Indonesia, 40191, Bandung, Indonesia

ABSTRACT

Recently, construction on shores, flood plains, swamps, and similar areas with soft soil deposits cannot be avoided. Soft soil has low bearing capacity and high compressibility. Peats are soft soil that was formed by the weathering of plants. Consequently, the organic content found in peats was 75% or higher. High organic content causes many uncertainties in the construction of peat. Padang Pariaman Toll Road Project is constructed on top of a soil embankment. The height of the embankment was 3 m to 6 m above the existing ground. Peat and soft soil were found in the area up to 11 m depth. Selected soil improvement was rigid inclusion and high-strength geotextile. Inclusions utilized are concrete mortar columns with a diameter of 420 mm. The spacing between each column was 1.6 m. Load Transfer Platform (LTP) was placed above the columns. High-strength geotextile was inserted inside the LTP. A settlement profiler was installed to monitor the settlement of embankment. Finite Element Models (FEM) were developed with several scenarios of LTP thickness and geotextile tensile strength. This paper presents the results of full-scale monitoring on construction sites compared with finite element analysis. Slope stability of the reinforced embankment complies with the minimum criteria in Indonesia. Total vertical settlement observed on field was only 2% relative to the total thickness of peat and soft soil. Results are confirmed on both finite element model and field monitoring. The addition of high tensile geotextile reinforcement above rigid inclusion columns to support embankment on peat in the Padang Pariaman Toll Road Project has been proven to be feasible and successful.

KEYWORDS
Embankment, Peat, Rigid Inclusion, Geotextile

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Yasin Widodo , Samira A. Kamaruddin , Ramli Nazir , Idrus M. Alatas , Agus Himawan , Reguel Mikhail , "The Role of High Tensile Geotextile Above Rigid Inclusions to Support Embankment on Peat," Civil Engineering and Architecture, Vol. 12, No. 3, pp. 1327 - 1337, 2024. DOI: 10.13189/cea.2024.120303.

(b). APA Format:
Yasin Widodo , Samira A. Kamaruddin , Ramli Nazir , Idrus M. Alatas , Agus Himawan , Reguel Mikhail (2024). The Role of High Tensile Geotextile Above Rigid Inclusions to Support Embankment on Peat. Civil Engineering and Architecture, 12(3), 1327 - 1337. DOI: 10.13189/cea.2024.120303.