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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 303 Documents
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Analysis of Time and Cost Control in a 2-Storey Construction Project Using the Earned Value Method (Case Study: Puri Cempaka Serang Housing Development Project) Setiawati, Dwi Novi; P, Bambang Setyo; Kurniawan, Inggit
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19559

Abstract

Poor planning is a common factor in project delays. For this reason, a time and cost analysis method is needed which can examine how much deviation occurs and the remaining time and costs to complete the project. The purpose of this research is to find out time and cost performance, what causes delays, and the estimated time and cost of project completion. For management activities costs (Cost Management) and time management (Time Management) can be This is done by using one of the project control methods, namely the value concept method results (Earned Value). The Earned Value (EV) method is one of the techniques for determining the real advantages and disadvantages of projects and provides a means to balance gains/losses and maximize profits. Week 1 to week 9 cost performance saves job fees. However, from the 14th to the 20th week of experiencing expenditure is greater than the project budget with a CPI value of 0,748 and performance The time from week 1 to week 9 is faster. But from week 13 to week, 20 time performance is slower with an SPI value of 0,59. The result of the calculation of the estimated cost of completing the project is Rp. 5.245.556.910 with an estimated turnaround time of 41 weeks, showing the project was 17 weeks late from the planned 24 weeks. Causative factor delays are work drawings or shop drawings that are late coming out as well as their gradual submission, lack of fill land, and workers getting a portion of the Eid holiday of ± 1 month.
Analysis of the Availability of Pedestrian Facilities for Mode Shift in Supporting the Merak-Banten Transit-Oriented Development (TOD) Area Furjatullah, Sarah Auliya; Irawan, Muhammad Zudhy; Mulyono, Agus Taufik
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19617

Abstract

High accessibility is a challenge for Cilegon City, an area with high transportation demands due to increasing migration rates. Increasing the high accessibility of Cilegon City can be focused on integrating transportation nodes in the Merak area, namely the Merak Integrated Terminal, Merak Harbor, and Merak Station, especially pedestrian accessibility as one of the indicators in the TOD area development plan in Merak-Banten. This research focuses on the walking interest of users of transportation nodes at modal shift facilities, knowing the level of interest and performance of capital switching facilities that can support a walking claim. The results of field observations show that several modal shift facilities need to meet the minimum service standards. Based on the results of the crosstab analysis and the chi-square test, it is known that social, economic, and demographic characteristics are related to the respondent's walking interest in capital transfer facilities that comply with minimum service standards. The minimum service standards consider security, safety, and comfort. Based on the results of the analysis using the importance-performance analysis (IPA) method, it is known that there are modal transfer facilities with a high level of importance but a low level of performance, namely the construction of a pedestrian bridge, the slope of the stairs and the direction facilities. Based on these conditions, optimizing the mode transfer facility per minimum service standards is necessary. This effort can be carried out in collaboration between stakeholders, such as the government and operators responsible for the three nodes.
Analysis of the Implementation of the Occupational Safety and Health (K3) System and the Implementation of Risk Management in the Cipunten Agung Hilir River Flood Handling Construction Project, Labuan District Maddeppungeng, Andi; Asyiah, Siti; Setiawati, Dwi Novi; Ujianto, Rifky; Priyatno, Yusup
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19544

Abstract

Construction projects require working time specifications that need to be completed in a short time. But in practice, some interfere with the implementation. This study aims to determine whether the OHS system has been implemented in construction projects. The applications of risk management in construction projects. This study was conducted as part of the Shipunten Agung Hill River Flood Management Project in the Labuan District. The method used is the distribution of questions to be filled out by respondents who are involved in projects in the OHS Section. The type of research in this research is quantitative. Quantitative research is research that distributes surveys in the form of questionnaires to respondents and the data is processed to determine the correlation between the results of the data obtained. Processing data in this study using SPSS v.20 software to test simple linear regression analysis. The results showed that the K3 system had been applied to the project by 64.8%. The most dominant variable affecting the implementation of the OHS system and the application of risk management in construction projects is that signs/signs/information about the project have been installed around the project site with a coefficient value of 6,053 and the variable that has the lowest effect on the application of the OHS system and the application of risk management to the project. 
The Effect of Rainwater in Concrete Mixture on Concrete Compressive Strength Siregar, Adde Currie; Liana, Ulwiyah Wahdah Mufassirin; Yatnikasari, Santi; Agustina, Fitriyati; Rahma, Annisa
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19561

Abstract

Rainwater was acidic water and had a pH generally ranging from pH 5.2 to 6.5. In this research using quantitative research types, where the data was obtained by conducting research in the laboratory. The sample used a cylindrical concrete with a size of 15 x 30 cm with a total of 30 specimens that will be tested for compressive strength with a Machine Compression testing machine to determine the compressive strength of concrete. The results of this study were the compressive strength of concrete using rainwater pH 5.8 and normal PDAM water pH 7.0 as a comparison. The results showed of compressive strength with water pH 7.0 at the age of 3 days 6,638 MPa, 7 days 11,878 MPa, 14 days 17,567 Mpa, 21 days 19,840 MPa and 28 days 21,490 MPa. While the results of compressive strength with rainwater pH 5.8 at the age of 3 days are 9,107 MPa, 7 days 13,830 MPa, 14 days 16,425, 21 days 16,470 and 28 days 17,982 MPa. From the results of the compressive strength above, it can be concluded that the use of rainwater pH 5.8 in concrete mixtures and curing at the age of 28 days had decreased in compressive strength by 16,32% of the compressive strength of PDAM water. Which indicates that PDAM water pH 7.0 was better for mixing concrete and curing compared to rainwater pH 5.8.
Flood Risk Indices Mapping of Lebak Regency, Banten Province Maulana, Yovi; Purnaditya, Ngakan Putu; Wigati, Restu; Subekti, Subekti; Priyambodho, Bambang Adhi
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19640

Abstract

Indonesia, as a developed country, has water-related disaster problems.Flood is one of them and it occurs in mostly province, includingBanten province. Lebak Regency as the region of Banten Province hashistory of flood occurrences. According to the Banten ProvincialBPBD (2021), among 2015-2020 period, twenty-nine flood eventsoccurred in Lebak Regency. The severest flood of that period occurredin 2020. A total 2389 residents’ homes and forty-five units of publicfacilities were damaged. Flood in Lebak regency historically alsoresulted in nine deaths, and two people were declared missing. Theobjective of this study is to be figuring out the flood risk profile andwhich districts have the highest risk in Lebak Regency by develop therisk indices map. Risk indices map informs the risk of flooding in eachsub-district, hence the policies taken can be delivered by the authorityproperly. The method used in this study used overlays based on PerkaBNPB No. 2 of 2012. This research obtains the map of the floodhazard, vulnerability, and capacity level that generates through QGIS.According to the results of the study, the risk index of Lebak district islow with three states. The sub-districts with the non-risk category areseven sub-districts with a percentage of 25%, while the sub-districtsthat fall into the slightly risky category are 10 sub-districts with apercentage of 35.7% and the sub-districts that are in the fairly riskycategory are 11 sub-districts with a percentage of 39.3%. These resultsgiven the conclusion that Lebak Regency is not considerable risk onhydrological flood events. Moderate level on vulnerability shouldgives note to the authorities to enhance the disaster resiliences.
Project Delay Analysis Using Fault Tree Analysis (FTA) Method And Failure Mode And Effect Analysis (FMEA) Method (Case Study of the Karian Rangkasbitung Dam Development Project) Maddeppungeng, Andi; Asyiah, Siti; Ujianto, Rifky; Akbar, Bagus Istigosah; Setiawati, Dwi Novi
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19545

Abstract

The Karian Dam Project is one of a total of 48 dam construction strategic projects in Indonesia that have experienced delays. Based on Addendum 6, the Karian Dam Project is targeted for completion in March 2021. However, the Karian Dam Project experienced delays in several works. This study discusses the factors of delay, the location of the risk of delay, and the work item assistance that causes delays in the Karian Dam Project. The research method used in this study is a quantitativ. Data collection was carried out using questionnaires and interviews. The obtained data is then analyzed using the Fault Tree Analysis (FTA) method to find the source of risk that is the cause of the delay. The subsequent analysis uses the Failure Mode and Effect Analysis (FMEA) method to assess the risks that have been identified using the FTA method for risk capture. According to the findings, there are 47 potential sources of delay in the FTA method. After calculating the probability index, it is found that activity A9-1 (planning and implementation) has the highest probability index value of 4. The FMEA method obtains the highest value of the highest Risk Priority Number (RPN) there is R-42 (planning change) with an RPN value of 64, and on arrest risk using the search risk matrix, as many as 9 risks are at high risk (high risk).
The Effect of the Addition Steel Slag and Bamboo Leaf Ash on the CBR Unsoaked Value in Subgrade Stabilization Kusuma, Rama Indera; Mina, Enden; Fathonah, Woelandari; Ramadhan, Thanara; Abdurohim, Abdurohim
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.19598

Abstract

This research was conducted to determine the physical and mechanical properties of origin and mixed soil with added steel slag (SS) and bamboo leaf ash (BLA) and to determine soil classification based on the Unified Soil Classification System (USCS) guidelines. This study used a mixture of steel slag and bamboo leaf ash with variations (0% SS ; 0% BLA), (20% SS; 10% BLA), (40% SS; 10% BLA), (60% SS, 10 % BLA), (100% SS; 10% BLA) with a curing time of 0 and 7 days. The mechanical properties test in this study was the unsoaked CBR test. In the USCS soil type classification system at the road location, it is included in the OH group (organic clay with high plasticity) with a plasticity index value of 22.86%, a liquid limit above 50%, which is equal to 64.5% and a DCP (Dynamic Cone Penetrometer) was obtained by 3.01%. The results showed that mixing native soil with added materials increased the CBR value. The optimum soil CBR value is found in the percentage of added material, 100% steel slag, and 10% bamboo leaf ash during seven days of curing with an unsoaked CBR value of 24.95%.
Effect of Installation Pattern of Prefabricated Vertical Drain (PVD) on Degree of Consolidation in Soft Soils Liliwarti, Liliwarti; Archenita, Dwina; Misriani, Merley; Refnaldo, Afdal
Jurnal Fondasi Vol 12, No 1 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i1.16175

Abstract

Soft soil has high water content and low permeability, causing a high settlement and long time. Soil improvement with prefabricated Vertical Drain (PVD) can accelerate settlement in soft soils and primary consolidation time. Prefabricated Vertical Drain (PVD) functions to accelerate the release of water from the ground, and the accelerated settlement process, which is indicated by the degree of consolidation (U) reaching 90%, generally this method combines PVD and preloading (additional load). The required time to achieve a 90% degree of consolidation is determined by the PVD installation pattern (triangle pattern and rectangular pattern) and its distance. This study reviewed the effectiveness of PVD installation patterns with distance variations of (1 m, 1.3 m, 1.6 m, 1.9, 2.2 m, 2.5 m, 2.8 m, and 3.1 m). The analysis results show that in the triangular pattern, the time required to achieve a degree of consolidation of 90% (U90) is from 1 to 8.5 months, and in the rectangular pattern is from 1 to 9.5 months. The greater distance between PVDs, the more time is required to achieve a 90% degree of consolidation (U90). The PVD with a triangular pattern could reduce the 6% - 25% time to complete a degree of consolidation (U90) compared to the rectangular pattern. It can be noted that the installation triangle pattern is more effective than the rectangular installation pattern.
Soil Stabilization on Cibingbin Village Roads Using Rice Husk Ash and Cement Rama Indera Kusuma; Woelandari Fathonah; Enden Mina; Yuda Inayatullah
Jurnal Fondasi Vol 12, No 2 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i2.22056

Abstract

Soil is the foundation of civil buildings, and its function is to support and withstand structural loads. Many materials can be used as soil stabilization materials. For this soil stabilization, RHA and type 1 cement as stabilization materials were chosen. Soil samples were collected on Cibingbin Village Road, Cibaliung. The soil was mixed with RHA at 0%, 5%, 10%, 15%, and 20% with 20% cement as an additive with 0, 7, 14, and 28 days of curing time. Soil from Cibingbin village can be classified as high plasticity inorganic clay (CH) based on the USCS classification table. UCT result shows the most optimum RHA content is in the 5% variation. The highest unconfined compressive strength value is at 28 days of curing time with 5% RHA content and 20% cement with unconfined compressive value of 20.9 kg/cm2. According to the provisions of Bina Marga PUPR in 2018, the plasticity index value of the Cibingbin soil is 12.94%, which meets the requirements for making road subgrades plasticity index value below 15%.
Utilization of Nickel Slag as an Aggregate Substitute in Asphalt Pavement Mixtures (AC-BC) Bethary, Rindu Twidi; Intari, Dwi Esti; Mutaqin, Agung Huda
Jurnal Fondasi Vol 12, No 2 (2023)
Publisher : JURUSAN TEKNIK SIPIL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fondasi.v12i2.21973

Abstract

Developments in road construction and repair are currently increasing in number. The length of roads in Indonesia in 2020 according to the level of authority is 548,366 km (Ministry of Public Works and Public Housing; Prov / City Government Public Works Office). To support the smooth running of daily community activities, roads can connect one region to another. This study aims to determine how the effect of using nickel slag as a substitute for aggregate with nickel slag levels of 0%, 10%, 40% and 70% on the characteristics of the intermediate layer (AC-BC) by testing material and marshall characteristics. The results obtained from this study indicate that the use of nickel slag as an aggregate substitute meets the specifications of LFA class A. Through the marshall test referring to the 2018 bina marga general specifications, the ideal proportion of nickel slag addition to asphalt concrete mixtures is obtained based on the highest stability value in each mixture proportion that meets all the characteristics of the marshall mixture according to the 2018 bina marga general specifications Division 6 for the type of mixture of Asphalt Concrete Layer (Laston) Layer Between (AC-BC), namely at 70% slag contentwith 5.5% asphalt content with a stability value of 1098.30 kg. Where from the results of this study it can be concluded that the use of nickel slag as a substitute for aggregate can be utilized as a road pavement material because it meets the Bina Marga Standard Specifications.

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