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All Journal U Karst Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil
Mareta, Ganeca Efa
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Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Energy Environmental Science Materials Science & Nanotechnology

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ANALISA PERBANDINGAN DAYA DUKUNG DAN PENURUNAN TERHADAP VARIASI BENTUK PENAMPANG FONDASI TIANG PANCANG Wardani, Mila Kusuma; Syafiarti, Arintha Indah Dwi; Utami, Gati Sri; Lestari, Laras Laila; Mareta, Ganeca Efa
Jurnal Kacapuri : Jurnal keilmuan Teknik Sipil Vol 6, No 2 (2023): Vol 6, No 2 (2023 JURNAL KACAPURI : JURNAL KEILMUAN TEKNIK SIPIL (Edisi Desember
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al-Banjari Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jk.v6i2.12880

Abstract

Gedung Rumah Sakit bertingkat struktur baja komposit dengan tanah dasar lempung berlanau berdasarkan hasil uji SPT sedalam 30 m. Berdasarkan hasil tersebut, diperlukan perencanaan fondasi sesuai syarat SNI 8460:2017 yakni aman terhadap daya dukung dan penurunan. Penelitian ini menganalisis perbandingan variasi dimensi dan bentuk penampang guna dipilih yang paling memenuhi syarat izin. Metode yang digunakan untuk perhitungan daya dukung sesuai data SPT yaitu Luciano Decourt, Meyerhof, dan Reese O’Neil. Perhitungan penurunan total berdasarkan metode Vesic dan Tomlinson. Hasil perhitungan daya dukung ultimate tiang pada variasi tiang D40 cm, D60 cm, 40 x 40 cm dan 60 x 60 cm jika diurutkan dari yang terbesar pada 60 x 60 metode Meyerhof (172,34 ton) dan yg terkecil pada D40 metode Luciano Decourt (54,16 ton). Dengan perbandingan kebutuhan tiang dimensi 40 cm ke 60 cm sebesar 33% dan peningkatan nilai efisiensi 5%. Penurunan yang terjadi pada tiang D40 cm, D60 cm, 40 x 40 cm dan 60 x 60 cm pada beban terbesar sebesar 330,38 ton yaitu 16,145 cm, 15,660 cm, 16,269 cm dan 15,660 cm. Berdasarkan hasil didapatkan alternatif yang disarankan yaitu tiang lingkaran D60 cm dan persegi 60 x 60 cm dengan metode Reese O’Neil yang telah memenuhi syarat izin 8460:2017.
Unveiling Subsurface Characteristics of Cliff Land in Sibang, Bali Through Geoelectric Investigation Diana, Nur Ayu; Mareta, Ganeca Efa
UKaRsT Vol. 8 No. 1 (2024): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v8i1.5557

Abstract

The unique geological formations and environmental dynamics of cliffs underscore the significance of comprehending soil composition and structural integrity for diverse applications, such as infrastructure development and environmental conservation. Geoelectrical needs to be done because the underground geological conditions of the cliff must be researched and assessed first before construction is carried out so that construction failure does not occur. This research aims to reveal the subsurface characteristics of cliff soil in Sibang, Bali through geoelectrical investigation. This research was conducted by evaluating the soil condition in the field using the geoelectric resistivity method to the ability of a material to inhibit the flow of electric current and geological regional theories. At points BL-01 and BL-04, there is a significant potential risk of landslides due to the thick layer of breccia, especially during high rainfall or additional loads in the area. Point BL-02 also has a potential risk of landslides due to the thick layer of basalt and wet sand. Meanwhile, points BL-03 and BL-05 are more ideal locations for construction because they consist of relatively stable hard rock. Point BL-06 outside the development zone has layers of gravel, weathered tuffa and andesite which could be considered for future development. Thus, a deep understanding of the geological characteristics of each point is important to manage risks and ensure the safety and sustainability of construction projects in that area.
Co-Authors Arintha Indah Dwi Syafiarti Diana, Nur Ayu Lestari, Laras Laila Utami, Gati Sri Wardani, Mila Kusuma