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UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology
Published by Universitas Muslim Indonesia
ISSN : 25974815     EISSN : 27986500     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Transportation
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology is an international language national journal that publishes the best peer-reviewed research in all fields of science and technology based on originality, importance, interdisciplinary interest, timeliness, accessibility, elegance and surprising conclusions. UNDERPASS provides fast, authoritative, insightful and engaging news and interpretations and interpretations of topical and upcoming trends that will impact science, scientists and society at large. UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology is an electronic journal (e-ISSN) in 2021 which is an improvement change from the flyover journal which previously used the Print ISSN (p-ISSN) starting in 2017.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 68 Documents
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ANALYSIS OF HOUSEHOLD VEHICLE OWNERSHIP AGAINST CONFLICT IN MANGGALA DISTRICT MAKASSAR CITY Lambang Basri Said; Maryam H; Sri Indriyani
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 2 No. 1 (2018): Journal Flyover Vol 2 Issue 1 Juni 2018
Publisher : Moeslim Indonesian University (UMI)

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Abstract

The increase in population accompanied by economic growth in Bumi Tamalanrea Permai Housing (BTP) has pushed the level of motorized vehicle ownership from year to year to increase. This of course will have an effect on the existing traffic conditions. So the objectives to be achieved in this study are: to analyze the socio-economic and demographic characteristics of households in Manggala District and to analyze the vehicle ownership model in households with the factors that influence it. The number of family members is 5 people or more, by 35.2%. And 1 person with a total percentage of 2.8%. the percentage who work 2 people is 40.4%. The highest number of family members who are students/students is 1 person with a percentage value of 38.8%. The highest monthly net income of Rp. 6 million - Rp. 10 million, which is 28.4%. Meanwhile, the gross income per month is Rp. 6 million – Rp. 10 million, which is 31.6%. The average distance per day is 10-20 km, with a percentage of 35.2%. The average monthly transportation cost per household is IDR 500 thousand – IDR 1 million, with a percentage of 39.2%. Average travel time per day is 1-2 hours, with a percentage of 40.8%. The highest level of household car ownership in Manggala District is 1 unit, with a percentage of 49.2%. While the smallest is more or equal to 4 units with a percentage of 0.4%. The highest level of motorcycle ownership in each household in Manggala District is 1 unit, with a percentage of 40.8%. While the smallest is more or equal to 4 units with a percentage of 1.2%.
CASHFLOW PLANNING ON THE BULUKUMBA STATE COURT BUILDING PROJECT PHASE II Wudi Darul Putra; Hanafi Ashad
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 2 No. 1 (2018): Journal Flyover Vol 2 Issue 1 Juni 2018
Publisher : Moeslim Indonesian University (UMI)

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Abstract

Cashflow planning is inseparable from scheduling conditions which include EST (earliest start time) or the earliest project start time, LST (latest start time) or the slowest project start time, and the use of non-critical activity floats which are a combination of the two, where activities in the project is collected in the middle. Thus, it is necessary to conduct a study to further examine cash flow planning in a construction project to obtain an optimal cash flow concept, which in the end can obtain maximum profit. This study aims to [1] Optimal cash flow planning in order to obtain maximum profit, from the payment model without a down payment, scheduling conditions for EST, LST and Optimum Shift. [2] Optimal cash flow planning in order to obtain maximum profit, with 20% down payment and 30% down payment, scheduling conditions for EST, LST and Optimum Shift. [3] Get a Project Scheduling scenario that can generate optimal cash flow, in other words the cash flow that generates the greatest profit. The results showed that [1] Conditions Without Down Payment with Monthly Payments, resulted in 9.29% Profit, the largest Overdraft was Rp. 1,533,680,766.00 CV =+, SV=+. [2] Conditions with 20% down payment and payment terms according to progress, resulting in 9.29% Profit, the biggest Overdraft Rp 848,581,656.00 CV =+, SV=+. [3] For conditions with 30% down payment and payment according to the progress terms, it generates 9.29% Profit, the largest Overdraft is IDR 586,319,072.00CV =+ , SV=+. And [4] Downpayment can indirectly affect profits, if when an overdraft occurs, the contractor cannot have sufficient funds so that they have to borrow funds from a third party, resulting in fluctuating interest expenses.
Roughness (MANNING) COEFFICIENT VALUE STUDY WITH HEC-RAS SOFTWARE VERSION 4.0 Ratna Musa; Hanafi Ashad; Trifandy Musafir Wellang
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 2 No. 1 (2018): Journal Flyover Vol 2 Issue 1 Juni 2018
Publisher : Moeslim Indonesian University (UMI)

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Abstract

Swadaya ponds are located in Lamasi District, Luwu Regency, South Sulawesi Province with a total area of ​​384 hectares of ponds. The Swadaya pond drainage system consists of a carrier channel and a discharge channel with water sources for irrigating the pond area obtained from fresh water sources taken from the Central Minanga river and salt water sources taken directly from the sea (Teluk Bone). The simulation was carried out on the Swadaya pond channel in Luwu Regency with Unsteady conditions using the HEC-RAS 4.0 software (Hydrologic Engineering Center-River Analysis System) issued by the US Army Corps of Engineering. What is reviewed with various quantities of Q80 and Qmin annual discharges for upstream Boundary Conditions and for downstream conditions using the influence of tidal changes, this is to find out how big the hydraulic changes are in the Swadaya pond channel. From the simulation for the boundary conditions Q80 and Qmin shows that: The greater the discharge in the upstream channel conditions, the greater the discharge, velocity, and depth of flow in the channel. At high tide, the flow discharge from upstream (Central Minanga River) to the primary carrier channel is smaller than at low tide. Meanwhile, the discharge that enters the secondary channel is greater when the water is in high tide. As for the effect of the Manning coefficient on discharge, time and distance, the smaller the discharge (Qmin = 13.99 m3/s) in upstream conditions, the effect of high tide will be greater and the distance from downstream will be further (s = 2680.64 m) and the greater the discharge (Q80 = 21.37 m3/s) in the upstream, the smaller the influence of the tide and the closer the distance from the downstream (s = 2665.33 m). In order for the availability of water to meet the needs of pond water in the Swadaya pond channel, a trial and error test is carried out on the slope of the secondary and tertiary canals.
STUDY OF THE EFFECT OF ADDITIONAL VARIATIONS IN LAWELE ASBUTON AND ASPHALT PEN 60/70 LEVEL IN THE UTILIZATION OF Limestone AS A RUDE AGGREGATE TO STABILITY AND AC-WC MIXED DURABILITY Lambang Basri Said; Mysdelty
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 2 No. 1 (2018): Journal Flyover Vol 2 Issue 1 Juni 2018
Publisher : Moeslim Indonesian University (UMI)

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Abstract

Bitumen Asbuton as a type of natural asphalt extracted from which there are many deposits in Indonesia is an alternative that can be used to improve the performance of asphalt mixtures where asphalt concrete pavements often experience problems, namely not achieving the design life due to early damage and at the same time it is expected to be able to utilize materials local. The purpose of this study was to obtain the results of the optimization of the asphalt mixture asphalt Laston Lapis Aus (AC-WC) when used Asphalt Oil and the addition of Asbuton which varied 0%, 5%, 7% and 10% and to obtain the characteristics of the asphalt mixture asphalt mixture (AC) -WC) which uses limestone as coarse aggregate. The research procedure uses the experimental method by referring to the provisions, terms and procedures of SNI, Bina Marga, AASHTO, or other related organizations. Sources of data obtained from research results as primary data and secondary data obtained from other sources which are the results of research that has been done previously. For the mixture with the addition of Asbuton 0%, 5%,7% and 10%, the optimum value of asphalt content (KAO) is 6.2%. The stability values ​​are 2161 kg, 2257 kg, 2410 kg and 2371 kg. The VIM score is 4.26%; 4.69%; 4.82%; and 5.10%. The deformation values ​​are 1.4825 (0%) and 0.945 (7%). With the addition of Asbuton will increase the value of stability, and the value of VIM also increases and reduces the rate of deformation. A mixture that uses asbuton a lot shows a greater stability value and is more resistant to hot temperatures and reduces the rate of deformation of the mixture so that it is indicated that it can improve the performance of the mixture and increase the durability of the mixture.
STUDY OF ACTIVITIES USING PDAM CLEAN WATER IN TAMALATE DISTRICT MAKASSAR CITY Arie Satriadi Sadewa; Ratna Musa
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 2 No. 1 (2018): Journal Flyover Vol 2 Issue 1 Juni 2018
Publisher : Moeslim Indonesian University (UMI)

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Abstract

One of the most important urban infrastructure is clean water as well as basic human needs. Its use is not only limited to household needs but also for public, social and economic facilities. One way to obtain clean water is to use PDAM services. The Regional Drinking Water Company (PDAM) is a business entity that processes and serves the drinking water needs of the community. One of the problems that have and will arise in the management of clean water is that the ability of PDAMs as clean water providers is generally still limited both in terms of coverage and quality of service. This study aims to determine the economic and demographic characteristics of the population as well as the most dominant PDAM water use activity in households in Tamalate District. The desired quantity of water is to meet the standards of the needs of the metropolitan city. The desired continuity of flow is to meet 24 hours per day. The desired water quality is to meet the applicable standards of physical parameters. The results showed that based on field observations of the dominant economic characteristics, the highest activity was bathing, continuity and quality were still not effective because the quantity of water still did not meet all customer needs, continuity of flow still did not flow 24 hours per day for all customers, and still there are customers who complain about the quality of the clean water consumed in terms of turbidity, smell and taste.
RISK MANAGEMENT IN ROAD DEVELOPMENT PROJECTS REGENCY. KUTAI TIMUR, EAST KALIMATAN PROVINCE Rizki Ayu Saraswati
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 5 No 1 (2021): Underpass Journal of Civil Engineering, Applied sciences, and Technology VOL 5 IS
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

risk management from the start of a project to its completion, starting from actively identifying risks, then assessing the levels of these risks so that management priorities are obtained, and determining the handling steps so that risks can be minimized as much as possible. This study aims to (1) identify risks during the construction of the Sp.Perdau – Plb Road Reconstruction project. Ronggang (Sangkulirang), (2) Analyzing the most dominant risks that occur in the Sp. Road Reconstruction project. Perdau – Plb. Ronggang (Sangkulirang) in order to improve project quality performance and (3) Knowing the risk response of the most dominant risks that occur in the Sp. Road Reconstruction project. Perdau – Plb. Ronggang (Sangkulirang). The results showed that (1) 53 out of 95 risk variables occurred in the construction of the sp. reconstruction Preservation project. Perdau-ma. Lembak-port of carang (sangkulirang), (2) the dominant risk in this project is to use the Probablity x Impact table on both cost and time. From this analysis, it was found that 9 risk variables occurred and had a significant impact on costs
SCHEDULING STUDY ON THE FACULTY OF MEDICINE COLLEGE BUILDING PROJECT INDONESIAN MUSLIM UNIVERSITY Wudi Darul Putra
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 5 No 1 (2021): Underpass Journal of Civil Engineering, Applied sciences, and Technology VOL 5 IS
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

A construction project is an activity that has a certain period of time, with limited resources to carry out a predetermined task in the form of building/repairing facilities (buildings, roads, bridges, dams). This study aims to [1] Optimal scheduling planning in order to obtain maximum profit by using the "S" curve, CPM Network and Analysis of Variance. [2] Get a Project Scheduling scenario that can produce optimal scheduling, in other words the scheduling method that produces the greatest profit. The results showed that [1] In the Scenario of Monthly Payments without Down Payment on Schedule Variant (SV) for 24 weeks, the Cost Variant (CV) was obtained in the form of negative overdraft (-) 17 weeks, positive overdraft (+) at 7 weeks. The biggest overdraft was Rp. 1,412,025,292.00 in the 23rd week. Assuming Profit + Overhead in Unit Price Analysis is 15%, the contractor's potential profit from RAB is 9.71% before tax. [2] In the 20% Advance Payment Scenario with Progress Payments on Schedule Variant (SV) for 24 weeks, the Cost Variant (CV) is obtained in the form of negative overdraft (-) 19 weeks, positive overdraft (+) in 4 weeks, overdraft ( 0) at 1 week. The biggest overdraft was Rp 2,534,761,037.00 in the 19th week. Assuming Profit + Overhead in Unit Price Analysis is 15%, the contractor's potential profit from RAB is 9.24% before tax. [3] In the scenario of 30% Advance Payment with Progress Payment on Schedule Variant (SV) for 24 weeks, the Cost Variant (CV) is obtained in the form of negative overdraft (-) 12 weeks, positive overdraft (+) in 1 week, overdraft ( 0) at 1 week. The biggest overdraft was Rp. 1,599,188,191.00 in the 19th week. Assuming Profit + Overhead in Unit Price Analysis is 15%, the contractor's potential profit from RAB is 10.2% before tax. [4] From the CPM curve, it was found that this project should be carried out using the Earliest Start Time (EST) Scheduling Method, because by shifting activity items to be postponed for 1 week, almost all activity items become part of critical activities. And [5] Cashflow that generates Optimal Profit, namely Payment Scenario with 30% Advance and Progress Payment, and uses Earliest Start Time Scheduling, with potential profit for contractors of 10.2% assuming Profit + Overhead in Unit Price Analysis is 15 %.
ANALYSIS OF SERVICE LEVEL OF PERINTIS INDEPENDENCE ROAD KM. 017 – Km. 018 MAKASSAR CITY FITRIAH
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol 5 No 1 (2021): Underpass Journal of Civil Engineering, Applied sciences, and Technology VOL 5 IS
Publisher : Magister Teknik Sipil Pps Universitas Muslim Indonesia

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Abstract

Road Independence Perintis City of Makassar is an urban road, from direct observation in the field on Jalan Perintis Kemerdekaan Km. 017 – Km. 018 Makassar City occurs several times of congestion causing long queues, namely during peak hours in the afternoon, at sunset until at night under certain conditions. Some of the traffic jams are temporary and some are routine, this is caused by the number of certain road conditions that are damaged, the presence of vehicles entering and leaving the road, the number of road users who have not obeyed the rules in an orderly manner, thus disrupting the smooth flow of traffic which can cause congestion. traffic. This study aims to (1) analyze the traffic conditions and characteristics on the Perintis Kemerdekaan Km. 017 – Km. 018 Makassar City, and (2) Analyzing the value of the degree of saturation (DS) and service level indicator (LoS) for the Pioneer Independence Km. 017 – Km. 018 Makassar City.This research is a non-experimental research, descriptive exploratory, case study type with survey methods and direct observation in the field to determine the performance of the road network. The results showed that (1) light vehicles (LV), heavy vehicles (HV), motorcycles (MC) and non-motorized vehicles (UM). The peak current on the Jalan Perintis Kemerdekaan Km.017 - Km.018 west is 4728 smp/hour at 17.00 - 18.00. The speed at that hour was 0.14 km/hour with a density level of 34937 smp/km while the peak current on the East Perintis Kemerdekaan Road was 4974 smp/hour at 17.00 - 18.00. The speed at that hour was 0.14 km/hour with a density level of 36288 pcu/km. the value of road capacity (C) is 5296 pcu/hour. And (2) the value of the service level (LoS) obtained a service level of 0.89 entered into category E while in the east direction the value of the degree of saturation was 0.94. The two values ​​of the degree of saturation are in the range between 0.85 to 1.00 with lower flow conditions than service level D with traffic volume approaching road capacity and very low speed; high traffic density due to high traffic internal drag; drivers begin to experience short duration traffic jams
EFFECTIVENESS OF THE CITY WITHOUT SLUM (KOTAKU) PROGRAM IN INFRASTRUCTURE DEVELOPMENT AND IMPROVEMENT : (CASE STUDY OF KAMPUNG BUYANG VILLAGE, MARISO DISTRICT, MAKASSAR CITY) andi nirma yanti; hanafi ashad; Ratna Musa
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 4 No. 1 (2020): Flyover Vol 4 Issue 1 juni 2020
Publisher : Moeslim Indonesian University (UMI)

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Abstract

Permasalahan permukiman kumuh menjadi salah satu isu utama dalam pembangunan perkotaan yang upaya penanganannya dari waktu ke waktu berbanding lurus dengan terus berkembang dan munculnya kawasan kumuh baru apabila tidak ditangani secara intensif, menyeluruh, dan tepat sasaran. Permukiman kumuh adalah permukiman yang tidak layak huni antara lain karena berada pada lahan yang tidak sesuai dengan peruntukkan atau tata ruang, kepadatan bangunan yang sangat tinggi dalam luasan yang sangat terbatas, rawan penyakit sosial dan penyakit lingkungan, kualitas umum bangunan rendah, tidak terlayani prasarana lingkungan yang memadai, membahayakan keberlangsungan Kehidupan penghuninya. Penelitian ini bertujuan untuk mengetahui faktor pendukung dan penghambat dalam pelaksanaan program dan menganalisis efektivitas Program Kota Tanpa Kumuh (KOTAKU) dalam peningkatan dan pembangunan infrastruktur. Penelitian ini menggunakan teori pengukuran efektivitas menurut Sugiyono dan tingkat kualitas efektivitas diukur mengunakan SK.MENPAN No.25/M/Mpan/2/2004. Lokasi penelitian dilaksanakan di Kelurahan Kampung Buyang Kecamatan Mariso, Kota Makassar. Objek yang diteliti pada penelitian ini adalah Efektivitas Program Kota Tanpa Kumuh (KOTAKU) yang dilihat dari aspek (1) Ketepatan Sasaran Program, (2) Sosialisasi Program, (3) Tujuan Program, dan (4) Pemantauan Program. Penelitian ini menggunakan jenis penelitian kualitiatif dengan pendekatan deskriptif. Berdasarkan teori Miles dan Huberman Teknik pengumpulan data yang dilakukan menggunakan teknik dalam bentuk kata-kata dan pernyataan, yang meliputi wawancara mendalam, observasi, dokumentasi, , reduksi data, tampilan data dan penarikan kesimpulan. Program Kota Tanpa Kumuh (KOTAKU) yaitu meningkatkan akses terhadap infrastruktur dan pelayanan dasar di kawasan kumuh perkotaan untuk mendukung terwujudnya permukiman perkotaan yang layak huni, produktif dan berkelanjutan. Adapun faktor pendukung dari program KOTAKU yaitu dukungan penuh dari pemerintah setempat, ketepatan waktu dalam pengerjaan fisik, pertanggung jawaban penggunaan dana dan hasil wawancara dari total sampel 144 kk, yang mengatakan masyarakat mendukung sebanyak 44%. Adapun faktor penghambat dari program Kota Tanpa Kumuh (1) Turunnya dana dari pusat terlambat, (2) Kurangnya masyarakat yang aktif berpartisipasi/kesadaran untuk mendukung program KOTAKU. Sehingga Program KOTAKU di Kelurahan Kampung Buyang masih Kurang Efektif dengan nilai interval 56%.
THE EFFECT OF PROJECT MANAGER LEADERSHIP PERFORMANCE ON THE SUCCESS OF CONSTRUCTION WORK AT PT. NINDYA KARYA (PERSERO) REGION V hanafi ashad; abd karim hadi; oskar harris
UNDERPASS Journal of Civil Engineering, Applied Sciences, and Technology Vol. 4 No. 1 (2020): Flyover Vol 4 Issue 1 juni 2020
Publisher : Moeslim Indonesian University (UMI)

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Abstract

PT. Nindya Karya (Persero) Wilayah V merupakan perusahaan yang bergerak dibidang konstruksi. Penelitian ini memfokuskan pada karyawan PT. Nindya Karya (Persero) wilayah V yang berlokasi di Makassar karena disini merupakan pusat kegiatan manajerial dilakukan untuk zona Indonesia bagian Timur. Kinerja karyawan yang tinggi sangatlah diharapkan oleh perusahaan terserbut. Semakin banyak karyawan yang mempunyai kinerja tinggi, maka produktivitas perusahaan secara keseluruhan akan meningkat sehingga perusahaan akan dapat bertahan dalam persaingan global. Keberhasilan karyawan dapat diukur melalui kepuasan konsumen, berkurangnya jumlah keluhan dan tercapainya target yang optimal. Disinilah muncul faktor-faktor yang dapat digunakan untuk meningkatkan kinerja diantaranya adalah gaya kepemimpinan, motivasi dan disiplin kerja. Dalam tulisan ini penulis ingin menerangkan tentang salah satu factor dari kebersihan suatu tim proyek adalah dari Kinerja Kepemimpinan sang Project Manager yang didapat dari hasil sample isian kuisioner pada PT. Nindya Karya (Persero) Wilayah V tingkat pengaruh gaya kepemimpinan mencapai prosentase 51,4%.

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