Journal of Applied Civil Engineering and Infrastructure Technology

Simulasi Angka Keamanan Menggunakan Metode Elemen Hingga Berdasarkan Nilai Kohesi (c) dan Sudut Geser Dalam

Wed, 12 Nov 2025 00:00:00 +0000

Expansive soil is a type of soil that can expand and shrink based on the moisture content. In Cisauk Subdistrict, Tangerang City, there are many damages to building structures and/ or roads caused by the expansive soil. This research is intended to identify the expansive soil, including its physical characteristics, in determining the cohesion (c) and internal shear angle (f) values using the UU (unconsolidated undrained) triaxial test. Test results indicated that the cohesion value was around 0.33 kg/cm² or 32.94 kN/m², and an internal shear angle of 20.51°. Both datasets were used to analyze slope stability modeling in defining the safety factor (SF) using PLAXIS software in 2D during rainy and dry seasons. Each condition was evaluated by the three slope variations, such as 20°, 40°, and 60°. Modeling results show that the (SF) would be higher on flatter slopes, and on the contrary, would decrease on steeper slopes. In addition, the (SF) would be higher during the dry season than the rainy season. The soil condition would be more saturated during the rainy season.

Perkuatan Tanah Gambut Ambarawa dengan Cerucuk Menggunakan Pemodelan Finite Element Method

Chyntia Helmalia Br S. Milala, Dora Melati Nurita Sandi, Mirza Ghulam Rifqi — Wed, 12 Nov 2025 00:00:00 +0000

Peat soils, which are mainly composed of semi-decayed plant remains, usually have high compressibility and low bearing capacity. The high compressibility and low bearing capacity mean that peat soil must be improved if construction is to be built on it. Research was conducted to find a method for soil improvement. Improvements were made by reinforcing the peat with bamboo stakes using the finite element method modeling. In the results of modeling and calculations using software based on the finite element method, the Ambarawa peat soil, before reinforcement with a bamboo stakes at a 5-day time interval, obtained a total deformation value of 7.18 m. After a 5-day interval, the soil collapsed due to its low bearing capacity, preventing further calculations and leaving the safety number unknown. In the Ambarawa peat soil after reinforcement with a bamboo stakes planned 8 m long bamboo stakes and a distance of 1 m between bamboo stakes based on calculations using finite element method modeling at a time interval of 5 days, the total deformation value was obtained at 3.98 m, a time interval of 10 days at 4.46 m, a time interval of 15 days at 4.46 m. Based on the known deformation value, the maximum safety value of this modeling was obtained at a time interval of 30 days, with a value of 1.173.

Evaluasi Efektivitas Drainase Jalan Kusuma Bangsa dalam Mengatasi Intensitas Banjir Tahunan dan Strategi Mitigasi Genangan Air di Kabupaten Lamongan

Nur Azizah Affandy, Yuniar Eka Andhika — Wed, 12 Nov 2025 00:00:00 +0000

The increasing urban growth in Lamongan Regency, Indonesia, has led to various issues and challenges related to stormwater management and flood risk in Lamongan District, particularly along Kusuma Bangsa Street. This study aims to evaluate the drainage system on Kusuma Bangsa Street by analyzing the capacity of drainage channels using a hydrological and hydraulic analysis approach. Rainfall data with return periods of 2, 5, and 10 years were used to estimate flood discharge. The results indicate that the flood risk in the area has significantly increased, as most existing drainage channels are unable to accommodate the planned flood discharge. Poor maintenance and excessive waste accumulation in certain sections of the channels further reduce the drainage system’s capacity. This evaluation is crucial for formulating strategies to improve drainage channels, mitigate flood risk, and enhance the resilience of urban infrastructure in Lamongan District. Flood risk mitigation strategies for this road include redesigning critical drainage sections, implementing green infrastructure solutions to enhance water absorption and reduce surface runoff, and adopting a routine maintenance schedule. These measures are expected to provide a more sustainable approach to urban flood risk management and support the sustainable development of the region.

Analisis Sifat Tanah Lempung Lunak yang Di Stabilisasi Dengan Limbah Ban Karet dan Fly Ash

Hasrullah, Hasan Bisri — Wed, 12 Nov 2025 00:00:00 +0000

Soft soil in construction is often a problem. This is because the bearing capacity of the soil is very low. Various soil improvement methods have been developed, one of which is the soil stabilization method. This study aims to investigate the effect of the addition of waste rubber tires and fly ash as stabilizer materials on changes in the physical and mechanical properties of soft clay soil. In addition, the effect of the length of curing of the soil mixture with stabilizer was also observed. After identifying the clay soil locally, the clay soil was mixed with stabilizer materials at several percentages (5%, 10%, 15% and 20%), which were then cured for 7, 14, and 28 days before testing the physical and mechanical properties. The results revealed that rubber tire powder plus fly ash mixed in soft clay soil had a positive effect on the physical and mechanical properties of the soil. The results of the consistency limits test showed a decrease in moisture content by 53.23% and the plasticity index (PI) value of the soil by 27.32% from its original condition. This decrease depends on the length of the soaking period. In addition, the CBR test results also increased significantly. The largest data value was obtained at 20% stabilizer mixing with 28 days of curing time by 10.32%. This shows that rubber tire powder and fly ash can work well as a binder (pozzolan) because they can bind the soil so that the carrying capacity of the soil increases.

Penentuan Debit Banjir Rancangan Sungai Saluki Kabupaten Sigi dengan Metode HSS SCS

Yosephina Puspa Setyoasri, Dantje Kardana Natakusumah — Wed, 12 Nov 2025 00:00:00 +0000

This study aims to determine the design flood discharge as the basis for planning the construction of a sabo dam on the Saluki River. The sabo dam is intended to protect the existing weir structure and ensure the sustainability of raw water supply in the Pasigala region (Palu, Sigi, Donggala). The 7.4-magnitude earthquake that struck on September 28, 2018, had a severe impact on infrastructure in Central Sulawesi, including water resources facilities along the Saluki River. As part of post-disaster rehabilitation and reconstruction efforts, a weir and intake structure were built to meet raw water needs. However, the Saluki River—classified as a third-order river within the Palu watershed—carries sediment and debris during flood events, posing a threat to infrastructure. Debris flow is a hazardous phenomenon involving a high-speed mixture of water, mud, gravel, and rocks that can damage downstream structures. Therefore, constructing a sabo dam upstream of the weir is essential. This preliminary study employed hydrological analysis using the Synthetic Unit Hydrograph method of the Soil Conservation Service (SCS-UH) to estimate the design flood discharge, considering the limited rainfall data in the area. The analysis resulted in flood discharges for various return periods: Q2 = 116.14 m³/s; Q5 = 158.15 m³/s; Q10 = 185.97 m³/s; Q25 = 221.12 m³/s; Q50 = 247.19 m³/s; and Q100 = 273.08 m³/s. These values serve as a reference for designing the sabo dam, analyzing sediment transport and storage capacity, and developing flood mitigation strategies for the Saluki River sub-watershed.

Analisa Produktivitas Tiang Menggunakan Alat Pancang Diesel Hammer Pada Proyek Pembangunan Gedung Kantor Pengadilan Agama Dataran Hunipopu

Ramona Istiqamah Marasabessy, Henriette Dorothy Titaley, Maslan Abdin — Wed, 12 Nov 2025 00:00:00 +0000

The pile driving process is a crucial stage in foundation construction, ensuring the stability and strength of the building structure. Piling can be done with various types of tools, one of which is a diesel hammer. Diesel hammers are renowned for delivering significant impact energy to piles, enabling effective and efficient soil penetration. The purpose of this research is to determine the cycle time of the piling process and to determine the productivity of piling using diesel hammer tools. The method used in this research is direct observation in the field. The results obtained from the research were the average cycle time in the piling process using a diesel hammer piling tool at 101 points for 16 days, which was 50.35 minutes during normal working hours and 59.94 minutes during overtime. The productivity of the diesel hammer on the work of the Religious Court Office Building was the lowest on the first day, with a productivity value of 10.48 m/hour, and the highest occurred on day fifteen, with a productivity value of 17.25 m/hour. During overtime working hours, the highest productivity was recorded on the fifteenth day at 16.71 m/hour, while the lowest was on the first day at 4.01 m/hour.

Implementasi Konsep BIM Pada Tahap Pelaksanaan Gedung B Proyek Pembangunan RSPTN Universitas Jember

Shifa Ikrima Hayya Isvahani, Anita Trisiana, Ketut Aswatama Wiswamitra — Wed, 12 Nov 2025 00:00:00 +0000

The construction project for Building B of RSPTN University of Jember still employs conventional methods, utilizing AutoCAD and Microsoft Excel, which results in a lack of integration between disciplines and an inefficient volume calculation process. To overcome this, this study implements BIM to improve coordination, clash detection, and automation of work volume calculations. The purpose of this study is to implement Building Information Modeling (BIM) technology using Autodesk Revit and Navisworks to improve the accuracy of coordination between disciplines through clash detection and to simplify and accelerate the calculation of work volumes on the construction project of Building B of RSPTN University of Jember. The implementation method of this research includes the creation of a 3D model of the building using Autodesk Revit, which integrates the disciplines of architectural structure and QTO calculation. Furthermore, clash detection analysis was carried out using Autodesk Navisworks. The study's results showed that the use of BIM through Autodesk Revit and Navisworks was effective in significantly identifying clashes between building elements, utilizing the clash detection feature. In addition, the volume calculation process became more accurate and efficient, as indicated by the minimal discrepancy between the BIM-based and conventional methods. BIM enables automated volume calculations directly from a 3D model, which includes detailed information for each construction element. The implementation of BIM has been proven to minimize the risk of errors, accelerate decision-making processes, and improve the overall effectiveness of project execution in the construction phase.

Perbandingan Kemampuan Menahan Beban Aksial Kolom Pendek Berlubang Dengan Variasi Jarak Sengkang

Wed, 12 Nov 2025 00:00:00 +0000

This study investigates the effect of stirrup spacing variation on the axial load capacity of short reinforced concrete columns with openings. The research focuses on square cross-section short columns measuring 12 cm × 12 cm × 45 cm, incorporating a pipe opening that reduces the cross-sectional area by 5.58%. The objective is to determine whether varying the stirrup spacing can enhance the axial compressive strength of perforated columns, which typically experience strength reduction due to the decreased cross-sectional area. The study was conducted experimentally in a laboratory using 20 MPa concrete, with longitudinal reinforcement of ø10 mm and stirrups of ø6 mm. Two types of columns were tested: solid columns (with 19 cm stirrup spacing) and perforated columns (with 8 cm stirrup spacing). Test results indicate that reducing stirrup spacing in perforated columns was not sufficiently effective to equal or surpass the axial strength of solid columns. The solid columns had an average axial compressive strength of 296.71 kN, while the perforated columns with 8 cm stirrup spacing showed a slightly lower strength of 288.92 kN, representing a decrease of 2.62%.

Perbandingan Kemampuan Menahan Beban Aksial Kolom Pendek Berlubang Dengan Variasi Diameter Tulangan Utama

Wed, 12 Nov 2025 00:00:00 +0000

Tuntutan estetika dari sisi arsitektural dalam sebuah bangunan sering dijadikan sebagai alasan utama pemasangan pipa-pipa drainase ataupun instalasi mekanikal elektrikal di dalam kolom. Penambahan lubang tersebut mengakibatkan terjadi pengurangan luas penampang kolom yang akan mempengaruhi kekuatan tekan kolom. Dalam peraturan SNI 2847-2013 pasal 6.3.4 sudah di jelaskan penempatan saluran atau pipa di dalam kolom diperbolehkan dengan syarat tidak boleh melebihi 4% dari luas penampang kolom, namun dalam praktik di lapangan sering melebihi batas tersebut. Penelitian ini bertujuan untuk mengetahui perbandingan kemampuan kuat tekan kolom normal dengan kolom berlubang dalam memikul beban tekan dengan mutu yang sama dan dimensi yang sama. Metode yang digunakan untuk menentukan kuat tekan beton dilakukan perencanaan, pembuatan, dan pengujian kuat tekan pada kolom normal dan kolom berlubang variasi diameter tulangan utama dengan diameter pipa PVC 5,58% dari luas penampang kolom. Pengujian dilakukan setelah beton berumur 28 hari. Berdasarkan hasil penelitian, diperoleh bahwa kolom beton berlubang dengan variasi diameter tulangan utama memiliki kuat tekan rata-rata sebesar 311,610 kN, lebih besar 4,98% dibandingkan kolom beton normal yang memiliki kuat tekan rata-rata sebesar 296,713 kN. Hasil penelitian ini merekomendasikan penggunaan kolom berlubang dengan variasi diameter tulangan utama sebagai alternatif pada kolom yang membutuhkan ruang instalasi pipa, tanpa menurunkan kekuatan tekan secara signifikan. Hasil ini dapat dimanfaatkan oleh industri konstruksi untuk meningkatkan efisiensi ruang dan material pada struktur bangunan.

Analisis Biaya Pekerjaan Timbunan Tanah Dengan Metode Photogrammetry

Andita Oktavia, Retna Kristiana — Wed, 12 Nov 2025 00:00:00 +0000

Recently, the construction industry has rapidly developed technology, particularly in infrastructure construction. One alternative is Free and Open Source Software (FOSS) Photogrammetry to factor in the cost of landfill work on the Padang – Sicincin toll road project. The photogrammetry method is a science and part of the art of obtaining mathematically precise measurements. The photogrammetry method can be an alternative solution for increasing cost effectiveness in projects with direct cost calculations. Surveyors conduct data measurement in the hoarding work for each layer of the Padang - Sicincin toll road project. Then, in the field, there was an inaccuracy in the x, y, z results when data was collected using a total station. According to the analysis results, the volume of the fill material deviated by 5.4%. The photogrammetry method indicated a difference of 26.95 m³ more than the manual method. The cost deviation from the previously calculated volume results was Rp2,234,719.26, making the photogrammetry method cheaper than the manual method.