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Fondasi: Jurnal Teknik Sipil
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 23024976     EISSN : 25031511     DOI : http://dx.doi.org/10.36055/jft.v9i1.7440
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Transportation
Terbitan berkala yang mempublikasikan hasil penelitian yang berkaitan dengan pengembangan sains dan teknologi dalam bidang teknik sipil (Struktur, Transportasi, Geoteknik, Sumber Daya Air dan Manajemen Konstruksi) sebagai bentuk kekayaan intelektual. Diterbitkan sebanyak 2 kali dalam satu tahun yakni pada Bulan April dan Oktober.
Arjuna Subject : -
Articles 15 Documents
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Search results for , issue "Vol 14, No 1 (2025)" : 15 Documents clear
Planning of Pedestrian Facilities and Integrated Crossing Based on the Concept of Active Living on C UNTIRTA Bethary, Rindu Twidi; Intari, Dwi Esti; Pradana, Muhammad Fakhruriza; Maharani, Anisah Yogiana
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32179

Abstract

Campus C of Sultan Ageng Tirtayasa University does not yet have adequate pedestrian facilities and crossing facilities at the main gate are not yet available so that the analysis of pedestrian facilities and crossing facilities is carried out with the aim of knowing the types of pedestrian facilities and road crossing facilities needed and making pedestrian facility designs that use the concept of active living. Campus C of Sultan Ageng Tirtayasa University is located on Jalan Ciwaru Raya No. 25, Cipare, Serang City. Data collection was conducted using direct observation method. The data collected included pedestrian volume, traffic volume, crosswalk volume, and road geometric data. The results showed that the recommended crossing facility for segment 1 on Jalan Ki Ajurum No. 2 is a zebra crossing with waiting stalls with a maximum PV2 result of 1748717534 (1 × 109). While for segment 2 on Jalan Ciwaru Raya No. 25 is a zebra crossing with a maximum PV2 result of 1615465208 (1 × 109). The recommended effective width of sidewalks within Campus C of Sultan Ageng Tirtayasa University is divided into 2 sizes, namely 2 meters and 2.5 meters. Complementary facilities that support the concept of active living that can be recommended are by providing seating, lighting, shading in the form of trees, trash bins, drinking water taps at several points, and special paths for people with disabilities.
Study of Equilibrium Time in Wetting Soil-Water Characteristics Curves (SWCC) using Capillarity Column Method Nurjanah, Ina Asha; Kusumah, Rama Indera; Mina, Enden; Fathonah, Woelandari; Abdurohim, Abdurohim
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32281

Abstract

The soil-water characteristic curve (SWCC) of soil plays the key roll in unsaturated soil mechanics which is a relatively new field. To encourage the geotechnical engineers to apply unsaturated soil mechanics theories in routine practice, numerical methods, based on the SWCC and saturated soil properties, have been developed to predict unsaturated permeability function and unsaturated shear strength properties which are expensive, time consuming, and it may require specials techniques or apparatus to measure the SWCC in laboratories. However, it is important to have laboratory measured data of SWCCs to enhance and verify the proposed numerical methods. Hence, employing the capillary column method which applies the tempe cell pressure principle, namely varying the matric suction value, this study aims to obtain the water content in each matric sauction variation which is then presented in SWCC form. Saturated permeability is obtained from constant head test. Permeability function is calculated indirectlt by Fredlund and Rahardjo method (1993) using SWCC and saturated permeability. 
Landslide Potential Analysis using Geographic Information System and Analytical Hierarchy Process (AHP) (Case Study: Taktakan District, Serang City) Mina, Enden; Fathonah, Woelandari; Kusumah, Rama Indera; Nurjanah, Ina Asha; Rafsanjaya, Aditiya
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32283

Abstract

This research aims to analyze the landslide potential in Taktakan Sub-district, Serang City, which is prone to landslides due to geographical and hydrometeorological factors. The analysis was conducted using Geographic Information System (GIS) method with QGIS software and Weighted Linear Combination (WLC) approach combined with Analytical Hierarchy Process (AHP). Factors causing landslides, such as slope, rainfall, geology, and land use, were analyzed based on the weights obtained from respondents' questionnaires. The results showed that rainfall has the greatest influence (42%), followed by slope (37%), geology (11%), and land use (10%). The highest landslide potential is found in Taktakan sub-district, with the dominant vulnerability level in the medium class (50.73%), while the high and very high risk areas are 20.65% and 3.66%, respectively. This study concludes that high rainfall and steep slopes are the main factors that increase the risk of landslides in the area
Changes in The Flexural Strength Characteristics of Concrete Due To The Effect of Coconut Fiber Addition on Normal Concrete Darwis, Zulmahdi; Baehaki, Baehaki; Soelarso, Soelarso; Fathonah, Woelandari; Rahma, Midia; Ramadhan, Malik Agung
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32200

Abstract

Concrete has high compressive strength, long durability, and easy maintenance. Innovation in using waste such as coconut fibers can improve the mechanical quality of concrete, reduce pollution, and provide added economic value. Fiber concrete is commonly used on broad structural elements to overcome expansion shrinkage due to oxidation, temperature, and evaporation. This study aims to determine the effect of the addition of coconut fiber waste and the optimum percentage on the bending strength characteristics of concrete. This research method is an experiment that compares the results of the bending strength test with the consideration of deflection that occurs on the force received from the variation of coconut fibers as much as 0%, 1.75%, 2.25%, and 2.75% of the weight of cement with a coconut fiber length of 65 mm, a planned quality of f'c 20 MPa, and using test specimens measuring 15 cm x 30 cm for cylinders and 15 cm x 15 cm x 60 cm for beams. Based on analysis and discussion, the addition of coconut fibers influences increasing flexural strength for a certain percentage with the addition of coconut fibers as much as 2.25% of the weight of cement showing the best flexural strength value with less deflection produced than other variations of fiber concrete at the same amount of force when charged.
Analysis of Flood Discharge at Catchment Area of West Jurang Mangu Reservoir using HEC-HMS Purnaditya, Ngakan Putu; Jannah, Dahlia Raudothul; Subekti, Subekti; Priyambodho, Bambang Adhi; Wigati, Restu
Jurnal Fondasi Vol 14, No 1 (2025)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fondasi.v14i1.32274

Abstract

High rainfall in Indonesia is one of the causes of flooding, especially in vulnerable areas such as watersheds. In addition to high rainfall, an increase in population and land use that is not in accordance with its function can worsen watershed conditions and cause an increase in flood risk. South Tangerang City is one of the areas prone to flooding, so flood control efforts are carried out such as widening rivers, raising embankments, and building retention ponds. Around the catchment area of the West Jurang Mangu Reservoir, flooding with a height of 50 60 cm still occurs, so further research was carried out at that location. In this study, the research method used QGIS to determine the catchment area, followed by hydrological analysis of the planned flood discharge using the HSS Synder method and modeling with HEC-HMS software. The results showed that the planned flood discharge using HSS Synder at return periods of 2, 5, 10, 25, and 50 years was 2.55 m3/s; 3.599 m3/s; 4.261 m3/s; 5.033 m3/s; and 5.718 m3/s.

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