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All Journal IPTEK The Journal for Technology and Science EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis Jurnal Rekayasa Sipil dan Lingkungan JMPM: Jurnal Matematika dan Pendidikan Matematika JMM (Jurnal Masyarakat Mandiri) Portal: Jurnal Teknik Sipil JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT) Journal of Social and Policy Issues SainsTech Innovation Journal Jurnal Riset Teknik Sipil dan Sains Handasah SainsTech Innovation Journal
Dora Melati Nurita Sandi
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Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Social Sciences Transportation Other

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Identification of Compressibility Rate and Expansion Index on the Physical Characteristics of Peat Soil Dora Melati Nurita Sandi, Lulu Adiya Salsabila
Jurnal Handasah Vol. 5 No. 01 (2025): Article In Press
Publisher : Fakultas Teknik, Universitas Islam Al-azhar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36679/handasah.v5i01.21

Abstract

ABSTRACT Peat soils have very high pore numbers and moisture content, so their bearing capacity is very low and their compressibility is very high. If it receives a load, it will decrease greatly over a relatively long period of time. Therefore, it is necessary to identify the characteristics of the Ambarawa peat soil due to the different properties of the peat soil in each location, the ability to shrink and the low bearing capacity. The purpose of this study was to determine the physical characteristics, compressibility velocity and development index of Ambarawa peat soil. By using laboratory testing methods in the form of testing soil physical properties including moisture content, specific gravity, fiber content, ash content, pH content and soil mechanical testing including consolidation testing to obtain the compressibility index and development index values. The laboratory test results showed that the moisture content was 410,58%, the specific gravity (Gs) was 1,20, the ash content was 48,143%, the organic content was 51,9%, the pH was 6,6, and the Ambarawa peat was a medium mature peat (hemic) with a fiber content of 56,16%. Sample 1 had a compressibility index (Cc) of 0,430764 and a development index (Cs) of 0,00632. Sample 2 has a compressibility index (Cc) value of 0,430182 and a development index (Cs) of 0,0025. With a percentage difference of Cc of 0,135% and a percentage difference of Cs of 60,44%.
Perkuatan Tanah Gambut Ambarawa dengan Cerucuk Menggunakan Pemodelan Finite Element Method Milala, Chyntia Helmalia Br S.; Sandi, Dora Melati Nurita; Rifqi, Mirza Ghulam
Journal of Applied Civil Engineering and Infrastructure Technology Vol 7 No 2 (2026): Desember 2026 (Articles in Press)
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v7i2.973

Abstract

Peat soils, which are mainly composed of semi-decayed plant remains, usually have high compressibility and low bearing capacity. The high compressibility and low bearing capacity mean that peat soil must be improved if construction is to be built on it. Research was conducted to find a method for soil improvement. Improvements were made by reinforcing the peat with bamboo stakes using the finite element method modeling. In the results of modeling and calculations using software based on the finite element method, the Ambarawa peat soil, before reinforcement with a bamboo stakes at a 5-day time interval, obtained a total deformation value of 7.18 m. After a 5-day interval, the soil collapsed due to its low bearing capacity, preventing further calculations and leaving the safety number unknown. In the Ambarawa peat soil after reinforcement with a bamboo stakes planned 8 m long bamboo stakes and a distance of 1 m between bamboo stakes based on calculations using finite element method modeling at a time interval of 5 days, the total deformation value was obtained at 3.98 m, a time interval of 10 days at 4.46 m, a time interval of 15 days at 4.46 m. Based on the known deformation value, the maximum safety value of this modeling was obtained at a time interval of 30 days, with a value of 1.173.
Co-Authors Anis Armaning Tyas Ayu Wanda Febrian Ayu Wanda Febrian Catur Bejo Santoso Deni Dwi Saputra Ella Nuritasari Erna Suryani Erna Suryani ERNA SURYANI Eva Olivia Hutasoit Firda Rachma Amalia, Firda Rachma Husnur rizal Indarto Indarto Januarti Jaya Ekaputri Maldini, Achmad Reynaldo Megalita Rodiyani Michel Kasaf Milala, Chyntia Helmalia Br S. Muhamad Ari Perdana Nurmawati, Yustika Dwi Pradita, Rahayu Prasetyo, Andika Junianto Rachmayu, Farra Anindita Ridho Bayuaji Rifqi, Mirza Ghulam Rodiyani, Megalita Siska Aprilia Hardiyanti Sukma Anandita, Hillary Widiyanti Tyas, Anis Armaning Ulfi, Kholidah Wahyu Satyaning Budhi Wari, Naris Wari, Wahyu Naris Wendy Natasha, Levia Yuni Ulfiyati Zulis Erwanto