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INTEGRATED GEOPHYSICAL AND GEOTECHNICAL ANALYSIS TO SUBSURFACE LITHOLOGY OVERVIEW AT ITERA DORMITORY SITE, LAMPUNG, INDONESIA Santoso, Nono Agus; Irwanto, Prastowo Adhi; Syuhada, Syahidus
Indonesian Physical Review Vol. 8 No. 3 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i3.488

Abstract

The Student Dormitory is a gathering place for most new students at ITERA. For disaster mitigation, it is necessary to conduct geophysical and geotechnical surveys. Geophysical and geotechnical surveys are conducted to describe the subsurface lithology. The purpose of this study is to identify the subsurface of the Dormitory building so that it can be determined which buildings have the potential for geological hazards. The methods used are geomagnetic, geoelectric and geotechnical methods. The results obtained are that High and low magnetic anomalies are related to the thickness of the lithology. This is also justified by the results of geoelectric using resistivity cross-sections. The thickness of this lithology is related to the level of building security. TB4 has the highest security based on magnetic and geoelectric data. Meanwhile, TB1 has the lowest security based on subsurface conditions.
Focus Group Discussion (FGD) Penyusunan Kurikulum 2025 - 2030 Program Studi Teknik Sipil Institut Teknologi Sumatera Kurniawan, Rahmat; Michael, Michael; Syuhada, Syahidus; Maini, Miskar; Fitriana, Indri Rahmandhani; Hayati, Julita; Dwiyana, Putri Ayu; Mardika, M Gilang Indra; Aprilia, Ayu Sinta; Khanza, Ayu Kamila; Saputra, Cahyo Agung; Prayogi, Galih Rio; Ribowo, Anggarani Budi; Yudi, Ahmad; Nadi, Muhammad Abi Berkah
Jurnal Pengabdian Masyarakat Bhinneka Vol. 4 No. 1 (2025): Bulan September
Publisher : Bhinneka Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58266/jpmb.v4i1.463

Abstract

Penyusunan kurikulum berbasis Outcome Based Education (OBE) merupakan upaya strategis untuk memastikan ketercapaian kompetensi lulusan yang relevan dengan kebutuhan dunia kerja, perkembangan teknologi, dan tantangan pembangunan berkelanjutan. Sejalan dengan hal tersebut, Program Studi Teknik Sipil Institut Teknologi Sumatera (ITERA) menyelenggarakan Focus Group Discussion (FGD) sebagai wadah kolaboratif dalam merumuskan Kurikulum 2025–2030. Proses ini melibatkan pemangku kepentingan internal dan eksternal, termasuk dosen, mahasiswa, alumni, praktisi, asosiasi profesi, serta pengguna lulusan. Kurikulum yang dikembangkan dirancang sesuai dengan standar Outcome Based Education (OBE) dan kriteria akreditasi LAM Teknik, dengan penekanan pada penguatan kompetensi inti bidang teknik sipil, integrasi teknologi digital, prinsip keberlanjutan lingkungan, serta pengembangan soft skills mahasiswa. Hasil FGD ini menghasilkan rekomendasi kurikulum yang adaptif, aplikatif, dan berorientasi pada capaian pembelajaran lulusan (CPL) yang selaras dengan standar nasional maupun internasional, sekaligus mendukung visi ITERA untuk menjadi perguruan tinggi yang unggul dalam sains, teknologi, dan inovasi.
ANALISIS PENGARUH PEMASANGAN CONTROLLED MODULUS COLUMN (CMC) PADA DAYA DUKUNG DAN PENURUNAN TANAH LUNAK Julita Hayati; Alfredo, Alexander; Sitepu, Arif Rahman Hakim; Syuhada, Syahidus
Jurnal Teknik Sipil dan Arsitektur Vol 31 No 1 (2026): Jurnal Teknik Sipil dan Arsitektur
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v31i1.5773

Abstract

The construction of a structure on soft soil has the potential for structural failure. This phenomenon occurs because the low bearing capacity of soft soil is accompanied by high compressibility, resulting in large settlements and low stability. This problem needs to be solved by soil improvement. In the Indrapura–Kisaran STA 112 + 500 Toll Road Construction Project, soil will be filled more than the ground's bearing capacity. Therefore, a soil improvement method using a Controlled Modulus Column (CMC) is necessary. The analysis method used in this study uses analytical methods and the finite element method (FEM). The analysis was performed by comparing the bearing capacity and settlement in conditions without improvement (preloading) and with improvement using CMC. The installation of CMC with a spacing of 1 meter, a diameter of 0.42 meters, an LTP thickness of 1 meter, and a concrete quality of 16.41 MPa showed an increase in soil bearing capacity of 30%. The rise in ground bearing capacity also affected soil compressibility, resulting in a reduction of up to 68% in soil settlement. Therefore, installing CMC on soft soil effectively increases bearing capacity and reduces settlement. Ground stability is improved, with the safety factor rising to 2.11. Keyword: bearing capacity, Controlled Modulus Column (CMC), settlement, soft soil, soil improvement
ANALISIS PENGARUH PEMASANGAN CONTROLLED MODULUS COLUMN (CMC) PADA DAYA DUKUNG DAN PENURUNAN TANAH LUNAK Julita Hayati; Alfredo, Alexander; Sitepu, Arif Rahman Hakim; Syuhada, Syahidus
Jurnal Teknik Sipil dan Arsitektur Vol 31 No 1 (2026): Jurnal Teknik Sipil dan Arsitektur
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v31i1.5773

Abstract

The construction of a structure on soft soil has the potential for structural failure. This phenomenon occurs because the low bearing capacity of soft soil is accompanied by high compressibility, resulting in large settlements and low stability. This problem needs to be solved by soil improvement. In the Indrapura–Kisaran STA 112 + 500 Toll Road Construction Project, soil will be filled more than the ground's bearing capacity. Therefore, a soil improvement method using a Controlled Modulus Column (CMC) is necessary. The analysis method used in this study uses analytical methods and the finite element method (FEM). The analysis was performed by comparing the bearing capacity and settlement in conditions without improvement (preloading) and with improvement using CMC. The installation of CMC with a spacing of 1 meter, a diameter of 0.42 meters, an LTP thickness of 1 meter, and a concrete quality of 16.41 MPa showed an increase in soil bearing capacity of 30%. The rise in ground bearing capacity also affected soil compressibility, resulting in a reduction of up to 68% in soil settlement. Therefore, installing CMC on soft soil effectively increases bearing capacity and reduces settlement. Ground stability is improved, with the safety factor rising to 2.11. Keyword: bearing capacity, Controlled Modulus Column (CMC), settlement, soft soil, soil improvement
Analisis Pengaruh Kuat Tarik Geosintetik Pada Perkuatan Tanah Lunak Metode Geosynthetic Encased Stone Columns (GESC) Hayati, Julita; Syuhada, Syahidus; Shahroni, Celvin
Borneo Engineering: Jurnal Teknik Sipil Volume 9 Nomor 1 Tahun 2025
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v9i1.32

Abstract

Infrastructure development must consider soil conditions to avoid settlement and bearing capacity failure. This problem can occur if construction is carried out on soft soil due to the nature of soft soil, which has low load-bearing capacity and high compressibility. Soft soil is found in the Indrapura-Kisaran Toll Road Construction Project at STA 112+550 and has a geometry that requires a high embankment, necessitating soil reinforcement to address the issue. In this study, the Geosynthetic Encased Stone Columns (GESC) method was used with variations in geosynthetic tensile strength of 150 kN/m, 200 kN/m, 300 kN/m, and 400 kN/m. The analysis process conducted in this study involves analyzing the bearing capacity and settlement conditions without and with reinforcement using analytical and numerical methods. Generally, the magnitude of bearing capacity and reduction in settlement due to reinforcement with geosynthetic-encased stone columns is influenced by the tensile strength of the geosynthetic, spacing, and installation pattern. After reinforcement, the soil-bearing capacity increased by 75 to 84%. In addition, due to the GESC reinforcement, there was a reduction in settlement of up to 86% using the analytical method and 61.8% using the numerical method. There was an increase in the stability of the embankment, where before reinforcement the stability was 1,453, and after reinforcement, it became 1,596 to 1,828.