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All Journal Journal of Degraded and Mining Lands Management Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat
Pachri, Hendra
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Public Health

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Journal : Journal of Degraded and Mining Lands Management

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A new approach to determining the slip surface in tuff to determine the volume of landslide material: A case study on the West Sinjai road section, Sinjai Regency, South Sulawesi, Indonesia Busthan, Busthan; Pachri, Hendra; Alimuddin, Ilham; Bahri, Syamsul; Bundang, Syarifullah
Journal of Degraded and Mining Lands Management Vol. 11 No. 2 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.112.5533

Abstract

Analysis of landslide slip surface based on the engineering properties of tuff rocks, including shear strength, water content, and infiltration rate on the West Sinjai road section, South Sulawesi, Indonesia. This study aimed to analyze the effect of shear strength, water content infiltration rate, and weathering grade of tufa rocks in the study area. The methods used in this study area included a study of weathered tuff profile characteristics, weathered tuff infiltration testing and residual soil (RS) determination of weathered tuff water content and residual soil, and testing of shear strength of weathered tuff and residual soil. This research used aspects of engineering geology, including shear strength, water content, and infiltration rate, as well as rock weathering grade to determine the slip surface in tuff to determine the volume of landslide material. The results showed that the tuff profile consisted of four grades, namely moderately weathered tuff (MW), highly weathered tuff (HW), completely weathered tuff (CW), and soil residual (RS). The rate of tuff infiltration increases with increasing weathering grade. The water content is more significant with the high degree of weathering of tuff. At the same time, the shear strength decreases with high weathering. Therefore, the research area is prone to landslide events. The slip surface is in a layer of moderately weathered tuff rock (MW), and those that experience landslides are highly weathered tuff rock (HW), completely weathered (CW), and residual soil (RS).
Co-Authors ., Agustinus ., Kaharuddin ., Safruddim A. M. Imran Adi Maulana, Adi Azrul, Muh. Zulfahmi Busthan Azikin Busthan, Busthan Fajrin, Muh. Fauzi Arifin Haerany Sirajuddin Hidayah, Bahrul Husain, Ratna Ilham Alimuddin, Ilham Jamal Rauf Husain Jaya, Asri Meinarni Thamrin Meutia Farida Nurul Ikhsan Rohaya Langkoke Safri Burhanuddin Sultan . Syamsul Bahri Syarifullah Bundang