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All Journal Menara: Jurnal Teknik Sipil Jurnal Teknik Sipil Cendekia (JTSC)
Ardhya Maharani, Shinta
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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Analisis Kombinasi Alat Berat pada Pekerjaan Galian Batu As Maindam STA 0+25 Sampai 0+50 (Studi Kasus : Proyek Pembangunan Bendungan Cijurey Paket 1) Ardhya Maharani, Shinta; Tunggulgeni, Ekodjati; Arsita Laksmi, Anasya
Menara: Jurnal Teknik Sipil Vol. 20 No. 1 (2025): Menara : Jurnal Teknik Sipil
Publisher : Teknik Sipil, Fakultas Teknik Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jmenara.v20i1.51344

Abstract

Peningkatan produktivitas merupakan kunci keberhasilan proyek konstruksi. Penelitian ini berfokus pada analisis kombinasi alat berat yang optimal untuk memaksimalkan produktivitas pekerjaan galian batu pada proyek Bendungan Cijurey. Dengan mempertimbangkan faktor-faktor seperti kapasitas alat, waktu siklus, dan efisiensi kerja, penelitian ini mengidentifikasi kombinasi alat yang mampu menghasilkan volume galian terbesar dalam waktu tercepat. Selain itu, penelitian ini juga memperhitungkan biaya operasional dan kepemilikan untuk setiap kombinasi alat. Hasil penelitian menunjukkan bahwa kombinasi dengan pengurangan jumlah dump truck dari 4 menjadi 3, yaitu Rock Drill Breaker 2 Excavator 1 Dump Truck 3, dapat mempertahankan prduktivitas sebesar 50,31 m3/jam dengan durasi pekerjaan tetap 340 jam. Selain itu, kombinasi ini mampu meningkatkan optimasi operasional dan mengurangi biaya operasional dari RP945.227.618,20 menjadi Rp837.206.928,80 dengan selisih penghematan sebesar Rp108.020.689,40 dibandingkan dengan kombinasi alat yang ada saat ini.
ALTERNATIF DESAIN SPILLWAY PROYEK PEMBANGUNAN BENDUNGAN CIBEET KABUPATEN BOGOR PROVINSI JAWA BARAT Trianto, Adden; Dwi Prasetyo, Ega; Ardhya Maharani, Shinta; Tunggulgeni, Ekodjati; Ahmad Fauzan, Sayed; Harianja, Ricky; Suprayogi, Suprayogi
JURNAL TEKNIK SIPIL CENDEKIA (JTSC) Vol 6 No 2 (2025): July
Publisher : Departement of Civil Engineering, Universitas Winaya Mukti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51988/jtsc.v6i2.305

Abstract

Indonesia, as an agrarian country, heavily relies on the availability of water for irrigation, raw water supply, and electricity generation to support industrial growth. One of the government’s efforts to ensure water availability is the construction of dams, including the Cibeet Dam, which serves to reduce flooding, provide raw water, support irrigation, and generate electricity. A crucial component of a dam is the spillway, which must be capable of accommodating excess water, especially during extreme flood events. This study aims to re-evaluate the spillway design of the Cibeet Dam using a hydraulic and structural stability analysis approach. The data used includes the Cibeet Dam planning documents, topographic data, hydrological data, geotechnical data, soil investigation data, climatological data, and reservoir capacity data. The analysis covers stability against overturning, sliding, seepage, and soil bearing capacity under three water level conditions (empty, normal, flood), and assesses construction cost efficiency. The results show that reducing the spillway crest width by 0.5 m only increases the head (Hd) by 2 cm. The spillway with an ogee crest and USBR II stilling basin is considered stable, with safety factors >1.5 under normal conditions and >1.2 during seismic events. The soil bearing capacity is also deemed sufficient to support the structure under all water level conditions.
Co-Authors Ahmad Fauzan, Sayed Arsita Laksmi, Anasya Dwi Prasetyo, Ega Harianja, Ricky Suprayogi Suprayogi Trianto, Adden Tunggulgeni, Ekodjati