Graciela Febriyanti Zulfa, Ngakan Putu Purnaditya, Restu Wigati, Subekti Subekti, Bambang Adhi Priyambodho
{"title":"Prediction of Snyder Synthetic Unit Hydrograph Coefficient for Cidurian Watershed","authors":"Graciela Febriyanti Zulfa, Ngakan Putu Purnaditya, Restu Wigati, Subekti Subekti, Bambang Adhi Priyambodho","doi":"10.36055/fondasi.v12i2.22046","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.22046","url":null,"abstract":"Watershed management is starting with knowing and recording the problems that exist in the watershed. Condition of the watershed that continues to deteriorate can trigger natural disasters such as flash floods that occurred in the Cidurian Watershed. Hydrological design, especially for short-term phenomena runs generates the synthetic unit hydrograph. Snyder synthetic unit hydrograph is the common synthetic hydrograph that widely used on hydrological analysis. Generally, on the snyder synthetic unit hydrograph, the coefficient value (peak coefficient, time coefficient, CW75 and CW50) is only based on estimates or previous research so that the calculation of discharge is less accurate and needs further research. This study discusses the prediction of the value of the Peak Coefficient (Cp), Time Coefficient (Ct), CW75 and CW50 in the Cidurian Watershed using the Snyder Synthetic Unit Hydrograph (HSS) and get a calculation graph between the Polynomial and Collins Unit Hydrographs against the Snyder Synthetic Unit Hydrograph (HSS) in the Cidurian Watershed with rainfall data processing using the Thiessen Polygon, Mononobe, and Alternating Block Method (ABM). The results showed that the value of Peak Coefficient (Cp) = 0.59, Coefficient of Time (Ct) = 0.09, CW75 = 1.22, CW50 = 2.14, with Peak Discharge (Qp) Collins Measured Unit Hydrograph 19th hour = 1.589 m 3 /s, and Peak Discharge (Qp) Snyder Synthetic Unit Hydrograph 11th hour, 1 = 1.59 m 3 /s.","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135977314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Utilization of Muara Badak Sand and Palm Kernel Shell in The Mixture for Paving Blocks","authors":"Santi Yatnikasari, Andi Wadaryanto, Adde Currie Siregar, Fitriyani Agustina","doi":"10.36055/fondasi.v12i2.20461","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.20461","url":null,"abstract":"Paving block is a building material composition made from a mixture of portland cement or other hydraulic adhesives, water and aggregate with or without other additives which do not reduce the quality of the concrete. This study aims to analyze the compressive strength of paving blocks from the utilization of local sand and palm shell waste. Palm shell waste is obtained from PT. Tapian Nadenggan who processes palm oil into palm oil. The large amount of waste can be used as an added ingredient in the manufacture of paving blocks. This research method is an experimental research, by making hexagon-shaped paving blocks with a mold size of 20 cm wide, 12 cm side and 6 cm thick using estuary sand and palm oil shell ash waste with variations of 0%, 25%, 50%, 75%, 100%. The addition of ash from palm shell waste resulted in an effective compressive strength test at 28 days of age with the highest value at 50%, namely 17.64 MPa, then a 25% variation, namely 17.38% and a 75% variation with a value of 16.03%, classified as quality B can be used for parking lots. Meanwhile, the 100% variation with a yield of 11.03 MPa is included in grade D and can be used for garden.","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135977311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Soil Stabilization Using Slag Cement for Improved CBR Performance: A Study in Lebak Regency, Banten","authors":"Woelandari Fathonah, Rama Indera Kusuma, Enden Mina, Giant Muhammad Satrio Negoro, Abdurohim Abdurohim","doi":"10.36055/fondasi.v12i2.22039","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.22039","url":null,"abstract":"The site of Kukulu Village, Parungsari Village, Sajira District, Lebak Regency, Banten was examined in this study. The Dynamic Cone Penetrometer test indicated that the soil carrying capacity value in this location was rather low, at 3.8%. It is crucial to remember that excellent subgrade soil (basic soil) has to have a CBR value of at least 6%. The use of slag cement is good for stabilizing soil because it contains silica and is cementitious. Slag cement is an environmentally friendly material, therefore in this study slag cement was used. The Unified Soil Classification System (USCS) will be used in this study to define the soil type and classification. The soil's grain size, Atterberg limits, compaction, and laboratory CBR tests will all be examined in order to achieve this. The CBR value will be calculated for a period of time and at different percentages of 0%, 8%, 10%, and 12% before and after stabilization using slag cement. In previous research, it was carried out and obtained an optimum CBR value when adding 10% slag cement and experienced a decrease when adding 15% slag cement, so in this study we wanted to find out whether there was still an increase in the CBR value in the range of 10% to 15%. The results of the CBR test obtained the highest CBR value of 23% from the addition of 12% cement slag and 7 days of curing.","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"388 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andi Maddeppungeng, Siti Asyiah, Dwi Esti Intari, Bahtiar Imanul Hakim, Dwi Novi Setiawati
{"title":"Analysis of Heavy Equipment Productivity Tower Crane in The Construction Project of Sultan Maulana Hasanudin State Islamic University Building","authors":"Andi Maddeppungeng, Siti Asyiah, Dwi Esti Intari, Bahtiar Imanul Hakim, Dwi Novi Setiawati","doi":"10.36055/fondasi.v12i2.21982","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.21982","url":null,"abstract":"Building construction in Indonesia has increased rapidly; according to the BPS (Badan Central Statistics), in 2020, building construction from 2016–2019 will have 189 buildings in Jakarta. The construction includes apartments, hotels, offices, and campuses. While productivity measurements are useful as information for the company to evaluate the trends of its productivity developments over time, information from these results will later be used for reference in correcting previous shortcomings. This research aims to determine how long a tower crane’s cycle time, productivity, and operating costs are. This research was carried out on the construction project of the State Islamic University of Sultan Maulana Hasanuddin Banten. The study was conducted by observing the tower crane for six days. From data collection, whether cycle time, productivity, or operating cost, the data analysis used in this study is an analysis using productiveness formulas, cycle times, and operating costs. From the analysis of the data, it can be known that the cycle time of the tower crane heavy tool on April 25, 2022, to April 29, 2022, gained an average of 0.311 hours for the average productivity of the tower crane on April 25, 2022, until April 29, 2022, which is 9662.131 kg/hour, while the operating cost of the crane tower was Rp. 575.037.37 per hour","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Azarine Vashti Alpha Raissa, Bambang Adhi Priyambodho, Ngakan Putu Purnaditya, Restu Wigati, Subekti Subekti
{"title":"The Effect of Groundsill Height on Bridge Pillar Flow Characteristics (Physical Model)","authors":"Azarine Vashti Alpha Raissa, Bambang Adhi Priyambodho, Ngakan Putu Purnaditya, Restu Wigati, Subekti Subekti","doi":"10.36055/fondasi.v12i2.22047","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.22047","url":null,"abstract":"Groundsill is one of the categories of wide thresholds that are generally built transversely in the river downstream of a building threatened with damage caused by scouring such as bridge pillars. In addition to construction factors, local scour around the pillars can be another factor causing the collapse of the bridge structure. The purpose of this study was to determine the effect of groundsill height on flow characteristics. Physical model research on open channels (flume) was carried out at the Integrated Laboratory of Sultan Ageng Tirtayasa University, Sindangsari Campus. The groundsill model is modeled with dimensions of 8 cm peak width, 30 cm length, and groundsill height variations (1, 2, 3, 4, and 5 cm) made of wood while the bridge pillar model is modeled with a diameter of 1 inch made of PVC pipe which is filled with concrete. The results showed that the higher the groundsill (p), the higher the water level upstream (H 1 ) is greater and downstream (H 2 ) is smaller, while the flow speed upstream (V 1 ) is smaller and downstream (V 2 ) is greater so that the Froude number downstream is greater than upstream. The higher the groundsill (p), the Froude number downstream will increase (supercritical flow) while upstream will decrease (subcritical flow).","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"214 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of the Service Level of the Serang City Station During the Pandemic of COVID-19","authors":"Arief Budiman, Rindu Twidi Bethary, Dwi Esti Intari, Syifa Kria Madani","doi":"10.36055/fondasi.v12i2.22055","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.22055","url":null,"abstract":"The increasing number of COVID-19 cases in Indonesia has caused a decrease in the number of users of public transportation services, one of which is users of train transportation services. This makes some facilities at the station require adjustments to the applicable rules. The purpose of this study is to measure the level of satisfaction and importance of train station service during the COVID-19 pandemic, determine the gap between the level of satisfaction and importance, and determine the attributes that are prioritized for improvement. This research uses Service Quality and Importance Performance Analysis methods. The results of the data analysis show that the expected station services are not in accordance with what is received by users of Serang Station services. It is necessary to improve the quality of service and increase the number of facilities at the station to increase the satisfaction of service users who use Serang Station services.","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rindu Twidi Bethary, Dwi Esti Intari, Agung Huda Mutaqin
{"title":"Utilization of Nickel Slag as an Aggregate Substitute in Asphalt Pavement Mixtures (AC-BC)","authors":"Rindu Twidi Bethary, Dwi Esti Intari, Agung Huda Mutaqin","doi":"10.36055/fondasi.v12i2.21973","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.21973","url":null,"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 content with 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.","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"46 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental Study Comparative Compressive Strength and Tensile Strength of Nail Fiber Concrete Against Fiber Concrete","authors":"Widya Wiraningrum, Baehaki Baehaki, Zulmahdi Darwis","doi":"10.36055/fondasi.v12i2.22040","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.22040","url":null,"abstract":"Concrete has high compressive strength but weak tensile strength. The innovations to increase tensile strength is addition fiber. Fiber concrete has been proven increase the tensile strength, but the basic material from flammable plastic and difficult to find in Indonesia, making polypropylene fibers less desirable, so an innovation was to add nails to concrete mix as substitute for polypropylene fibers. Nails made of steel, non-flammable, higher melting point than polypropylene, high tensile strength and easy to find in Indonesia. The purpose of this study was to determine the effect of adding nail and polypropylene fiber to the compressive and split tensile strength of concrete, and to determine the optimum proportion of nail fiber to polypropylene fiber concrete. Mix design using SNI 7656:2012. Based on the results, the compressive strength of normal concrete was 20,007 MPa and 1% polypropylene concrete was 20,097 MPa. The compressive strength of nail fiber concrete varies 0,5%, 1%, 1,5%, 2% and 2,5%, respectively, 16,334 MPa, 18,790 MPa, 21,290 MPa, 21,324 MPa, 19,242 MPa. The split tensile strength of normal concrete is 1,834 MPa and 1% polypropylene concrete is 2,361 MPa. The split tensile strength of nail fiber concrete varies 0,5%, 1%, 1,5%, 2% and 2,5%, respectively, 1,620 MPa, 1,990 MPa, 1,942 MPa, 1,800 MPa, and 1,730 MPa. The optimum proportion of nail fiber concrete as substitute for 1% polypropylene fiber concrete is variation of 1,5% with compressive strength of 21,290 MPa and split tensile strength of 1,942 MPa.","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"386 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andi Maddeppungeng, Siti Asyiah, Dwi Esti Intari, Miftha Adityo Putro, Dwi Novi Setiawati
{"title":"Occupational Health and Safety (K3) Risk Management Analysis on Building Construction Projects in Indonesia: Literature Review","authors":"Andi Maddeppungeng, Siti Asyiah, Dwi Esti Intari, Miftha Adityo Putro, Dwi Novi Setiawati","doi":"10.36055/fondasi.v12i2.21986","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.21986","url":null,"abstract":"The construction of building construction projects in Indonesia is inseparable from various risks related to work accidents, therefore risk management is very important for construction to prevent or minimize negative influences caused by an unexpected event. Since the announcement of covid-19 for the first time in 2020 until now, Indonesia is still experiencing the COVID-19 pandemic so large-scale social restrictions are imposed. This leads to restrictions on activities in the construction project environment. This study aims to analyze risk identification, risk assessment, and risk control contained in building construction projects in Indonesia. This research uses the systematic literature review method where data sources are obtained from \"google scholar\" in the form of published journals regarding occupational safety and health risk management in building construction projects in Indonesia from 2016-2021 with the keywords risk management, risk identification, risk assessment, risk control, and building construction. After the selection process, 23 journals were obtained. From this literature review, the most identified risks are technical project risks, the most emerging risk levels are moderate, and the most widely used risk control is administrative control.","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"136 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of the Use of Cobweb-Shaped Foundation for Road Pavement Construction","authors":"Soelarso Soelarso, Rindu Twidi Bethary","doi":"10.36055/fondasi.v12i2.21993","DOIUrl":"https://doi.org/10.36055/fondasi.v12i2.21993","url":null,"abstract":"Flexible pavement and rigid pavement are the two types of road construction pavement. This study attempts to employ CobwebShaped Foundation (KSLL) as an alternative style of road construction, KSLL being the labor of the nation's youth and commonly used in structures. PT. Katama Suryabumi owns the building patent. This study attempts to incorporate KSLL, which has been widely utilized for building foundations, into road construction. The study was carried out by doing experimental comparisons and analysis using the Finite Element Method, in which the model is summarized in order to achieve accurate comparison findings, and it is believed that they will find a formula connected to the design of KSLL for road building. It is expected that this concept may be used to solve problems in designs that do not currently have regulations or standards. As a result, the study objectives are as follows: a) The KSLL foundation is a stiff pavement that may be used as an alternative pavement. b) Calculating the KSLL foundation's strength and settling. b) Restoring and improving the KSLL foundation","PeriodicalId":475041,"journal":{"name":"Fondasi: Jurnal Teknik Sipil","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}