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Journal : Nusantara Civil Engineering Journal

Study of Flood Control in the Gang Mufakat of Balikpapan City (Qualitative Study) Rus, Tatag Yufitra; Pongtuluran, Ezra Hartarto; Rundengan, Kezia Putri; Moammar Yasser Alfarizi; Ghanio Effendi
Nusantara Civil Engineering Journal Vol 2 No 1 (2023): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/nuce.v2i1.435

Abstract

Balikpapan City is a city that often experiences floods. One of the most frequently flooded locations is Gang Mufakat, which is located in Damai Village, South Balikpapan. This area is an area passed by the Ampal River Basin which is one of the causes of flooding besides the lack of vegetation as land cover in the settlement. This research aims to identify the management and control/control of floods in general. This is done to obtain information on several things that are considered important in management and to assess the understanding of the community and government regarding flood control/management. The research method used is a descriptive qualitative method. This research results from the community's understanding of floods and community actions in dealing with floods. Understanding of flooding in the form of causes of flooding, and the importance of the role of vegetation on land cover and the creation of infiltration wells. The recommendation for the government is to dredge sedimentation as well as deepen the Ampal watershed, and create a polder as a substitute for water catchment areas because there are many residential areas around the Ampal watershed which do not allow water to flow directly into the watershed. The recommendation for the community is to build an infiltration well in the Gang Mufakat.
Comparative Analysis of Slope Enforcement Between Gravity Wall With Gabions and Borepile on Samarinda – Bontang Axis Road Slide Sta. 3+450 Al Irsyad, Muhammad Rama; Rus, Tatag Yufitra; Ain, Muhamad Isram
Nusantara Civil Engineering Journal Vol 2 No 2 (2023): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/nuce.v2i02.492

Abstract

Jalan poros Samarinda – Bontang merupakan jalan nasional yang menghubungkan kota Samarinda dan kota Bontang. Longsoran yang terjadi di Sta.3+450 dapat membahayakan pengguna jalan. Diperlukan suatu penanganan untuk meningkatkan stabilitas lereng tersebut dengan melakukan analisa stabilitas lereng dengan menggunakan aplikasi plaxis 2D. Penelitian ini bertujuan untuk mengetahui nilai faktor keamanan stabilitas lereng setelah menggunakan perkuatan existing pasangan batu dan dinding penahan tanah bronjong dengan bore pile. Parameter tanah yang digunakan adalah model parameter Hardening Soil (HS) Undrained B. Tanah dibagi kedalam tiga lapisan dengan konsistensi lapisan lempung kelanauan bercampur laterit (0-2 m), lempung berpasir (2-6 m), dan batu lempung (6-16 m). Pada analisis stabilitas lereng menggunakan nilai beban lalu lintas sebesar 100 kN/m2 berpengaruh terhadap stabilitas lereng. Dari hasil analisis didapatkan nilai faktor keamanan stabilitas lereng dengan perkuatan existing pasangan batu sebesar 1,346 < 1,5 dimana nilai tersebut dikategorikan tidak aman. Hasil analisis stabilitas lereng dengan perkuatan dinding penahan tanah bronjong dan bore pile didapatkan nilai faktor keamanan sebesar 1,604 > 1,5 bahwa perkuatan stabilitas lereng tersebut dikategorikan aman karena memenuhi syarat angka keamanan sebesar 1,5 (Safety Factor > 1,5).
The Productivity Analysis of Heavy Equipment Usage in Cut and Fill Work for the IKN Toll Road Construction Project Section 1B, Bandara Sepinggan – Balsam Toll Segment Sulistianto, Dedy; Rus, Tatag Yufitra; Mahfud, Mahfud
Nusantara Civil Engineering Journal Vol 3 No 2 (2025): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/nuce.v3i2.664

Abstract

Cut and fill work is a critical initial stage in toll road construction, including the IKN Toll Road Project Section 1B spanning the Bandara Sepinggan – Balsam Toll segment. The effective use of heavy equipment is a key factor influencing the speed and quality of earthwork operations in this project. This study aims to analyze the productivity of excavators, dump trucks, and bulldozers, as well as determine the optimal number of heavy equipment units based on actual operational conditions in the field. A quantitative research method was employed by collecting primary data such as cycle time and equipment efficiency, along with secondary data including equipment capacity and production targets. The results indicate that excavators with bucket capacities of 0.93 m³ and 1.4 m³ have similar productivity levels of approximately 100 m³/hour, requiring nine units each. Dump trucks with capacities of 22 m³ and 10 m³ produce 32.73 m³/hour and 29.03 m³/hour, with required units of 26 and 30, respectively. The bulldozer shows a productivity of 93.2 m³/hour requiring five units. The findings highlight that productivity is influenced not only by equipment capacity but also by cycle time and operational efficiency. The study concludes that planning based on actual field data is crucial for determining the required heavy equipment efficiently and preventing resource inefficiencies.