Alternatives for Overcoming Cliff Landslide Problems (Case Study of Km 20+300 Of the Pekanbaru-Kandis-Dumai Toll Road)

Authors

  • yohan handoko ITS
  • Yudhi Lastiasih Institut Teknologi Sepuluh Nopember
  • Indrasurya Budisatria Mochtar Institut Teknologi Sepuluh Nopember

DOI:

https://doi.org/10.33603/jki.v13i2.10724

Keywords:

Slope Stability Analysis, Safety Factor, Secant Pile, Geo5

Abstract

The Pekanbaru-Kandis-Dumai Toll Road passes through a hilly topography with steep valleys. In April 2024, a landslide occurred at Station 20+300, disrupting toll road traffic towards Pekanbaru. This condition forces the toll road to be cut and follow the contours to obtain both horizontal and vertical alignments. The purpose of this study was to determine the cause of the landslide and to find alternative repair methods using Geo5 analysis with two methods: crack soil approaches.The results of the analysis of existing conditions with the conventional method, the safety factor value is 1.082 and the crack soil method obtained a value of 0.882. After being reinforced with secant piles, the static safety factor value is 1.56 and the earthquake safety factor value is 1.122.

References

H. C. Hardiyatmo, Mekanika Tanah I, Gadjah Mada University Press. Yogyakarta, 2002.

P. P. d. P. Jalan, Perumahan Permukiman dan Pengembangan Infrastruktur Wilayah Kemen PUPR, modul I Pengertian Lereng dan Longsoran, Diklat Penanganan Longsor pada Struktur Jalan.

D. Amalia and I. B. a. M. N. Mochtar, Penerapan Konsep Baru Cracked Soil Pada Penanggulangan Kelongsoran Lereng, (Studi Kasus : Pembangunan Gedung Reskrimsus Polda Kalimantan Timur, Balikpapan), 2018.

K. PUPR, Kumpulan Korelasi Parameter Geoteknik dan Fondasi, Direktorat Jenderal Bina Marga , 2019.

I. Mocthar, Cara Baru Memandang Konsep Stabilitas Lereng (Slope Stability) Berdasarkan Kenyataan di Lapangan” – A New Method of Perceiving Slope Stability Concept Based on Field Evidences, South kalimantan Branch, Banjarmasin: Proceedings of HATTI Seminar, July 23rd 2011.

M. I. Hutagamissufardal, The Effects of Soil Cracks on Cohesion and Internal Friction Angle at Landslide”, Hanyang Univ., Seoul, South Korea. Hutagamissufardal: Proc. 6th International Conference of Euro Asia Civil Engineering Forum (EACEF), August 22-25, 2017.

B. Das, Mekanika Tanah (Prinsip-prinsip Rekayasa Geoteknis) Jilid 1, Penerbit Erlangga, Jakarta..

M. I. Qomariyah, "Analisis Peningkatan Tekanan Tahanan Geser tanah Lunak akibat adanya Cerucuk berdasarkan pemodelan di Laboratorium".

Y. E. D. Barrang, "Studi Literatur Tentang Analisis Stabilitas Lereng Dengan Perkuatan Soil Nailing Menggunakan Program GEO5," TEKNO - Volume 19 Nomor 79, Desember 2021.

I. Hutagamissufardal and Mochtar, "Analisa Parameter Kekuatan Geser Tanah Berdasarkan Pendekatan Bidang Retak pada Peristiwa Kelongsoran Lereng” (Analyses of Shear Strenth Parameters of Soils Based on Existence of Crack Planes during Slopes Failures)," Jurusan Teknik Sipil FTSP - ITS, no. Doctoral Disertasi S-3 (PhD research Dissertation), Mei 2013.

C. Lazarte, "Proposed Specifications For LRFD Soil Nailing Design And Contruction” NCHRP Report 701," no. Transpormation Research Board, Wangshington 2011.

I. Mochtar, "Kenyataan Lapangan sebagai Dasar untuk Usulan Konsep Baru tentang Analisa Kuat-Geser Tanah dan Kestabilan Lereng” – Field Evidences as the Base for Suggested New Concept of Soils Shear Strength Analysis and Slope Stability,," Proceedings of 16th Annual Scientific Meeting HATTI Indonesia, Jakarta, Desember 4 th 2012.

Downloads

Published

2025-10-29