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All Journal Jurnal Konstruksi Jurnal Konstruksia Prosiding Semnastek AGREGAT Rancang Bangun BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil JUTEKS - Jurnal Teknik Sipil Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Borneo Engineering : Jurnal Teknik Sipil Jurnal Konstruksi Prosiding Seminar Nasional Teknik Sipil UMS Jurnal Spesialis Teknik Sipil (JSpTS) Jurnal Inovasi Teknologi dan Edukasi Teknik JMTSS Clean Energy and Smart Technology PASAK: Jurnal Teknik Sipil dan Bangunan
Heri Khoeri
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Journal : Jurnal Spesialis Teknik Sipil (JSpTS)

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Asesmen Stabilitas Geoteknik dan Rekomendasi Perbaikan Tanah dengan Soil Grouting dan Drainage Tunnels (Studi Kasus: Pergeseran Dinding Penahan Tanah Pondasi Tower Transmisi) Khoeri, Heri; Isvara, Wisnu; Pradana, Roberto
Jurnal Spesialis Teknik Sipil (JSpTS) Vol 5 No 2 (2024)
Publisher : Magister Teknik Sipil, Fakultas Teknik, Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jspts.v5i2.12067

Abstract

The detection of a retaining wall displacement in early 2023 at one of the DD6+12 transmission tower sites raised concerns about the tower's stability, potentially leading to structural failure. A comprehensive assessment was conducted on the tower's verticality, retaining wall displacement, subsurface conditions, and soil properties around the tower area. The assessment results revealed a linear inclination of the transmission tower from the base to the top, with a deflection at the top of approximately ±20 cm to the south and ±7 cm to the west. With this condition, some structural elements reached a stress-to-permitted stress ratio of 0.91. Although still within allowable limits, without soil stabilization, it is at risk of structural failure. GPR scan results showed differences in foundation dimensions compared to the as-built drawings and identified cavities filled with water beneath the ground surface due to poor drainage, resulting in a safety factor of 1.088, whereas the required safety factor is 1.5. This condition caused the retaining wall displacement. Recommendations including constructing drainage tunnels upstream, soil grouting, installing wheep holes in the retaining walls, and adding secant piles would increase the safety factor to 1.988.
Co-Authors Adeputra, Galuh Andika Setiawan, Andika Badaruddin Badaruddin Badaruddin Badaruddin, B Davit Fikri Deby Puspitaningrum Dini Sofiana Dwi Yulina Abdi Jayanti Faisal Ridho Faisal Ridho, Faisal Galuh Ade Putra Haryo Koco Buwono Irwanto, Rachmad Jack Widjajakusuma Natasa, Fani Naufal Rafif Rizqullah Nugroho, Panji Pradana, Roberto Prof. Ir. Sofia W. Alisjahbana, M.Sc., Ph.D., Prof. Ir. Sofia W. Rizqullah, Naufal R. Rizqullah, Naufal Rafif Rizwan Komarudin Roberto Pradana Satiawan, Budi Sembada, Zerik Sofiana, Dini Tri Setiyono Wisnu Isvara Wisnu Isvara, Wisnu