Analysis of Foam Mortar and Prefabricated Vertical Drain (PVD) Application for Soft Soil Improvement on the Aruk–Sp. Take Road Section, Sambas Regency, West Kalimantan
Downloads
Infrastructure damage on the Aruk – Sp. Take Road Section, Sambas Regency (especially STA 99+000 to STA 99+550), is directly attributed to soft soil conditions characterized by low bearing capacity and high compressibility. Previous conventional repair methods were deemed ineffective, while permanent solutions involving Pile Slabs proved to be financially prohibitive for extensive road segments. This study aims to analyze the effectiveness of combining a lightweight fill material (Foam Mortar) with consolidation acceleration using Prefabricated Vertical Drains (PVD) on key geotechnical parameters: settlement, consolidation time, and slope stability. The methodology comprises soil data analysis, modeling of embankment designs with varying Foam Mortar compositions (0%, 25%, and 50%) at different heights, and consolidation calculations using a triangular PVD pattern. The analysis results demonstrate that installing PVD at an optimal spacing of 1.25 meters achieved a degree of consolidation of 91.2% within 22 weeks. Furthermore, the inclusion of Foam Mortar was proven significant in reducing the overall load and substantially improving stability. In the final height design of 3.30 meters, the 50% Foam Mortar variation reduced the maximum settlement to 1.38 meters (compared to 1.70 meters on 100% conventional earthfill) and drastically increased the Safety Factor (SF) from 1.90 to 3.06.
Copyright (c) 2025 Victor Bela Sendoro Hia, Indrasurya B. Mochtar, Noor Endah Mochtar
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-ShareAlike 4.0 International. that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
