Jurnal Teknik Sipil Terapan

Studi Analisis Waktu Proyek Pembangunan Gedung Kementerian Koordinator 2 di IKN Menggunakan Program Evaluation and Review Technique

Eunike Imania Kaligis — 2025-12-21

Penjadwalan waktu pelaksanaan yang akurat merupakan aspek krusial dalam pengelolaan proyek konstruksi, terutama pada proyek gedung perkantoran berskala besar. Penelitian ini bertujuan untuk menganalisis estimasi waktu penyelesaian proyek menggunakan metode Program Evaluation and Review Technique (PERT), serta membandingkan dengan realisasi waktu proyek berdasarkan data Kurva S. Metode PERT digunakan untuk menghitung estimasi waktu rata-rata (te) dari setiap aktivitas proyek, dengan memperhitungkan waktu optimis, waktu kemungkinan besar, dan waktu pesimis. Hasil analisis menunjukkan bahwa pekerjaan struktur memiliki estimasi waktu penyelesaian sebesar 303 hari dengan probabilitas 96,56% (z = 1,824). Dibandingkan dengan realisasi di lapangan sebesar 321 hari, sehingga ditemukan keterlambatan sebesar 18 hari pada pekerjaan struktur. Keterlambatan ini disebabkan oleh beberapa faktor, seperti kompleksitas pekerjaan, durasi aktivitas yang panjang, serta ketergantungan antar disiplin kerja. Penelitian ini memberikan kontribusi dalam penerapan metode PERT untuk evaluasi kinerja waktu proyek konstruksi, serta sebagai acuan pengambilan keputusan dalam perencanaan waktu pada proyek serupa.

Evaluasi Sistem Jaringan Distribusi Air Bersih PAMSIMAS Desa Lubuk Tilan Kabupaten Siak Menggunakan EPANET 2.2

Lintang Putri Fakar — 2025-12-21

The distribution of clean water remains a challenge, especially in rural areas. To address this issue, the government has implemented the PAMSIMAS Program as an alternative solution for providing clean water. Howev er, due to the conventional distribution system being less than optimal, further analysis is conducted through numer ical simulations using the EPANET 2.2 software to identify problems and formulate improvement solutions. Existing condition data and technical specifications of the pipe network are used as input for the analysis, referring to the Minister of Public Works Regulation No. 18 of 2007 to evaluate pressure, velocity, and head loss at each node and pipe. Three simulations were conducted: the existing condition, system improvement simulation, and projection of clean water needs until 2040, using the geometric method to calculate population growth. In 2024, the water de mand for 224 residents was recorded at 0.257 liters/second, indicating that the flow velocity did not meet the re quired standard. As a result, improvements such as pump replacement and pipe diameter adjustments were neces sary. The 2040 projection estimates a population increase to 1,470 people with a constant service level of 18.93%, leading to a projected water demand of 0.319 liters/second. The simulation results indicate that replacing the 2 HP pump with a 3 HP unit, along with adjusting the pipe diameter from 40–50 mm to 20–40 mm.

Beton Geopopolimer Hibrid Abu Terbang untuk Kolam Penampungan Limbah Cair Kelapa Sawit

Azzahra Aqilla — 2025-12-21

Analisis Hidrologi dan Perencanaan Sistem Drainase Menggunakan GIS di Sub DAS Melangit Kecamatan Bangli

Ni Wayan Suprianingsih — 2025-12-21

Land use changes in the Melangit Sub-Watershed, Bangli Regency, have caused an increase in surface runoff, a decrease in infiltration capacity, and a risk of flooding in residential areas. This study aims to analyze hydrological characteristics and evaluate the capacity of the existing drainage system using a Geographic Information System (GIS) approach. The research methods included analysis of planned rainfall using the Gumbel distribution, calculation of planned discharge using the Rational method, and evaluation of channel capacity based on hydraulic parameters using the Manning equation. The results showed that the planned rainfall intensity for a 5-year return period was 177.5 mm/hour with a total runoff discharge of 40.89 m³/second. Residential areas produced the highest discharge of 11.39 m³/second, while industrial plantations produced the lowest discharge of 4.41 m³/second. Spatial analysis showed that the priority zone for drainage planning was in flat to sloping areas with high residential density. The research findings confirm that GIS-based drainage planning and conservation zoning are necessary to improve the effectiveness of runoff control and flood mitigation. In conclusion, the integration of hydrological analysis and GIS can be the basis for adaptive and sustainable drainage infrastructure planning.

Keywords: Hydrological analysis, Drainage, GIS, Surface runoff, Water management system

Analisis Dampak Aktivitas Konstruksi terhadap Kualitas Udara Ambien Menggunakan Model Dispersi Gaussian di Kawasan Ubud, Bali

I Wayan Gde Sutasoma — 2025-12-30

Aktivitas konstruksi memiliki potensi menghasilkan emisi udara yang bersumber dari pembakaran bahan bakar alat berat dan pergerakan kendaraan proyek. Penelitian ini bertujuan untuk menilai pengaruh aktivitas konstruksi terhadap kualitas udara ambien di kawasan Ubud, Kabupaten Gianyar, Provinsi Bali. Pengukuran dilakukan pada tiga lokasi, yaitu area pintu masuk proyek, area inti pembangunan, serta permukiman warga di sekitarnya. Parameter yang diamati meliputi Sulfur Dioksida (SO?), Karbon Monoksida (CO), Nitrogen Dioksida (NO?), dan Partikulat Halus (PM?.?), dengan metode pengujian merujuk pada SNI 19-7119 (seri 2011–2017). Perhitungan beban emisi alat berat menggunakan faktor emisi CORINAIR dan pola dispersi polutan dianalisis dengan model Gaussian Plume. Hasil penelitian menunjukkan bahwa konsentrasi maksimum polutan pada jarak 25 meter masih berada jauh di bawah baku mutu udara ambien berdasarkan PP No. 22 Tahun 2021. Dengan demikian, pengaruh aktivitas konstruksi terhadap kualitas udara di lokasi penelitian tergolong sangat kecil dan tidak signifikan, sehingga kualitas udara tetap berada pada kategori sangat baik.

Kata Kunci : dampak konstruksi, emisi alat berat, kualitas udara ambien, model Gaussian

Pengembangan Mekanisme Monitoring Termin Kontrak Menggunakan Pendekatan RCPS untuk Pengendalian Proyek dan Manajemen Kontrak di Direktorat Enjiniring PLN Enjiniring

Dewi Tumewu — 2026-01-07

Effective monitoring of contractual milestones (termin) is essential in project and construction management because milestone validation directly influences schedule control, cost performance, and revenue recognition. In PLN Enjiniring, the existing monitoring process remains fragmented, spreadsheet-based, and weakly integrated with engineering progress, leading to inconsistent data, unreliable milestone verification, delays in billing, and deviations from planned performance. This study employs a process engineering approach supported by Root Cause Problem Solving (RCPS) to analyze systemic deficiencies, quantify their impact on construction project control, and redesign a standardized monitoring mechanism. The redesigned model introduces unified milestone indicators, integrated technical–administrative control points, and a structured verification workflow. A dashboard prototype was developed to provide real-time visualization of milestone status, deviation analysis, and revenue projections. Pilot testing across several engineering service contracts demonstrated improvements in milestone accuracy (25–30%), reduced inter-unit discrepancies (up to 30%), faster update cycles, and a 50–70% reduction in revenue reconciliation time. These findings indicate that a systematically analyzed and structured monitoring mechanism strengthens construction project control, improves schedule and cost reliability, and enhances the PMO's strategic role in engineering-based project environments.