scholarly journals Analisis Produktivitas Alat Berat Pada Pekerjaan Timbunan

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Dian Febrianti ◽  
Zulyaden Zulyaden

Heavy equipment plays an important role in terms of speed and acceleration of work. The road improvement project of Suka Makmue Square - the eastern ring road of capital of phase II, funding from OTSUS budget of Nagan Raya Regency with project cost Rp.3.922.503.000, - road length 2475 m The work followed is preferred heap work, B-class aggregate foundation layers, class A aggregate foundation layers. This research uses heavy equipment dump trucks, motor graders, roller vibrators, water tanker trucks. The purpose of the research is to know the productivity of heavy equipment and to know the time needed by heavy equipment to complete the work. The method used is the calculation method manually using the formula productivity. Based on the calculation of productivity at occupation of accumulation using dump truck production per hour 32,4 m/hour, production per day 259.2 m/day with 11 days, 6 days class B class aggregate work, 4 days class A class aggregate work, motor grader production hourly 128,3 m /hour, production per day 1026,43 m3/day with time 3 day, 2 days class B class aggregate work, 1 day class A class aggregate work, vibrator roller production hourly 64,8 m3/hour, production per day 518,4 m3/day with time 6 days, 3 days class aggregate layer work B , 2 days class A class aggregate work, water tankers truck production per hour 16.2 m3/hour, production per day 129,6 m3/day with 21 days, 11 days class B aggregate work, 8 days class A class aggregate work  Keywords-productivity, heavy equipment, time of work.

INFO-TEKNIK ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 103
Author(s):  
Aulia Isramaulana ◽  
Rizka Norjanah

On the project Periodic Maintenance of Road Sungai Lakum Pasar Kamis is a project implemented using heavy equipment. By using heavy equipment, will facilitate and accelerate the course of the project. The tools used must be considered maintenance, because it is very influential on the production tools and costs incurred for the use of the tool. This study aims to analyze the use of heavy equipment in the periodic Maintenance Project of road Sungai Lakum Pasar Kamis by using theoretical analysis based on field data. Analyzing the calculation is the productivity and cost of the equipment on the scope of work that is the work of the land, widening work and road shoulder work, grinding pavement work, and asphalt work, using Excel program as a tool in data processing so that the achievement of the use of heavy equipment available in finish the job. Based on the calculation obtained the price of theoretical analysis unit based on field data for the work of preferred stockpiles from the source of Rp. 310.994.714,2; Class B aggregate base layer Rp. 76.127.086,04; Aggregate base layer with hill excavation Rp. 59.705.050,39; Class A base aggregate layer Rp. 204.703.029,9; Asphalt lining resap coat liquid Rp. 3.038.436,28; Lataston coating foundation Rp. 306.997.682,6. Where the calculation of unit price based on field data is smaller than the unit price of the bid data.


Author(s):  
A. Fihani ◽  
Hasyim Hasyim ◽  
I.D.M.A. Karyawan

The Street-Race Circuit is being built in the Mandalika Tourism Special Economic Zone (KEK), Central Lombok, West Nusa Tenggara. The construction is targeted to be completed, before the MotoGP event on this circuit is implemented in 2021. One of the infrastructure related to this, which also really needs to be built to support the smooth running of the 2021 MotoGP is the development of access to the circuit location. The analysis carried out includes the calculation of heavy equipment productivity. Heavy equipment productivity is determined based on cycle times, production per hour, number of heavy equipment used, the amount of operating costs per hour. The analysis was carried out for the road surface layer work, namely the Asphalt Concrete Base Course (AC-BC) work. Based on the results of the analysis, it was found that the production for 1 unit of asphalt mixing plant (AMP) was 49.80 tons/hour and 9 units of dump trucks were 2.34 tons/hour. The spreader using the asphalt finisher can spread 109.18 tons/hour. As for the compactor, which is 18.55 tons/hour for 2 units of tandem rollers and 27.47 tons/hour for 1 unit of pneumatic tire roller. Other equipment is 9.96 m2/hour for air compressor and 2.74 liter/hour for asphalt sprayer. Meanwhile, in the Asphalt Concrete Wearing Course (AC-WC) work, several tools have the same productivity as the AC-BC job, namely asphalt mixing plant, air compressor and asphalt sprayer. Meanwhile, 13 units of Dump Trucks amounted to 2,338 tons/hour, 1 unit of asphalt finisher of 72,787 tons/hour, 3 units of tandem rollers of 12,367 tons/hour, and 1 unit of pneumatic tire roller of 18.31 tons/hour. The total cost of using heavy equipment for road surface layer work is Rp. 4,967,657,344. The total cost based on the contract document is Rp. 5,042,082,622. So that there is a difference in costs of Rp. 74,425,278.


Author(s):  
V. N. Dobromirov ◽  
◽  
K. I. Fomin ◽  
U. N. Meike ◽  
◽  
...  

The article presents the analysis results of the design of dump trucks used in road construction field. The authors point out the tendency of expanding the use of dump trucks with articulated frames in the world practice. The necessity of evaluating the possibilities of domestic manufacturers to produce the machines of this type is justified. Comparative evaluation of samples was carried out by comparing generalized indicators of the vehicle quality determined by their technical level coefficients, as well as by directly comparing a number of specific indicators of their performance properties. Information search, statistical processing of information materials, expert research and mathematical modeling were used as scientific methods for obtaining the initial data for evaluation. The comparative qualimetric assessment of the operational capabilities of dump trucks of various designs gives grounds to recognize that the use of a machine with an articulated frame for direct filling of the road embankment will be preferable to machines of frame construction. This is due to the fact that the articulated dump truck has a higher cross-country ability and maneuverability, while having a certain reserve for increasing the load capacity and the similar cargo capacity of the body with the frame truck. The evaluation results confirm the feasibility of producing a domestic dump truck with an articulated frame.


2020 ◽  
Vol 9 (1) ◽  
pp. 71-80
Author(s):  
Munawar Thoharudin ◽  
Fatkhan Amirul Huda ◽  
Tedi Suryadi

The purpose of this study was to find out how the Harapan Jaya Cooperative development in terms of cooperative financial capital and business. In financial capital, there are assets, incomes, and Net Income. While the business is from the business run by the cooperative. This study uses a qualitative descriptive method. In this study, the researcher acts as a data collector and as an active instrument to collect data. This research uses two data sources; they are primary and secondary data. Data collection was conducted by researchers using in-depth interviews, documentation and observation. Data analyzed using qualitative analysis, the validity of the data using the triangulation method. The Harapan Jaya Cooperative Capital development in this study was reviewed from the Solvency, Liquidity and Profitability Ratio. Overall shows good and excellent criteria. The development of the cooperative business is indicated by the addition of income from savings and loan units, management of plasma tubers, dump truck rental, beko heavy equipment rental, motor grader heavy equipment. In addition, business development is also seen from the addition of dump trucks and heavy equipment owned by cooperatives.


2019 ◽  
Vol 134 ◽  
pp. 01005
Author(s):  
Boris Gerike ◽  
Aleksandr Zacharov ◽  
Pavel Gerike ◽  
Yuriy Drozdenko

One of the risk factors for dump trucks drivers is the over-vibration on various parts and control units. This leads to the formation of high intensity of work. To search for the causes of over-vibration it is proposed to use vibration analysis methods. To search for the causes of over-vibration it is proposed to use vibration analysis methods in time when dump truck is not moving. This allows the escaping the influence of external factors such as like profile of the road, slope, etc. The analysis of the vibrational signal spectrum allows determining the type of defect with a high degree of reliability.


2021 ◽  
Vol 1 (2) ◽  
pp. 128-137
Author(s):  
Rio Rahma Dhana ◽  
Armanda Lutfi Febrianto

Reservoir is a container or place for storing raw water, which will later be used as a temporary water storage area, then used as a place for water treatment for the continued growth of rice plants. In addition to rice plants, reservoirs are also used to minimize drought disasters in the dry season. The construction of this reservoir will be used by the Kramat village community to improve the economy in two sectors, namely agriculture and village potential, Kramat village itself is one of the villages in Lamongan Regency which has an area of ​​194.80 hectares and is located in Lamongan sub-district which has a population of 2,012 people. Most of their livelihoods are farmers. Seeing such conditions, farmers need facilities to help meet the needs of raw water for their agricultural land which will be planned with the planning method carried out by the construction of the reservoir with various stages such as measuring with 2 methods, either surveying in the field or utilizing digital applications or software using fields area or Google earth, after finding the size, then we can determine the sketch of the image on the reservoir by drawing in AutoCAD software. The area of ​​land used for the construction of the reservoir has an area of ​​1,452.03 m2, which is later estimated to be able to accommodate 8,507,190 L of water. The total volume of excavation work is 8,507.19 m3 with an estimated work period of 23 days. Excavator pc 200 heavy equipment operational cost : Rp. 101.200.000 per 23 days and for Dump truck capacity of 8 m3: Rp. 2,400,000 (2 dump trucks) per day.


Author(s):  
Humiras Hardi Purba

An operational stop time is a condition where heavy equipment is not working as usual. It is important to avoid this condition since excessive idling wastes an enormous amount of fuel and money. However, the operational stop time of a dump truck Hauller HD465-7 is 2.83 minutes, which is far above the normal standard. This project aims to optimize the improvement of an operational stop time by using a Six Sigma method with optimize plan selection. This will return the operational stop time to the standard range within 1.25 to 1.65 minutes. These steps of define, measure, analyze, improve, and control are applied to the standardization process according to the rules and criteria established by the Six Sigma. The result found that the Six Sigma’s approach which was applied in PT X has reduced the cost from US$1,105,300 to US$963,000 every month. An improvement have been made to matching fleet by combining six fleet of dump trucks at driving speed of 22 km per hour and the average simulated haul distance was 2,000 meters.


2020 ◽  
Vol 1 (1) ◽  
pp. 137-146
Author(s):  
Geniusman Sidabutar ST IPM ◽  
Desyandi Putraldi ST

ABSTRAK Coal hauling road merupakan jalan utama yang dipergunakan untuk mengangkut batubara dari Pit ke Stockpile Port dengan jarak 48 Km menggunakan unit dump truck bermuatan 26 ton hingga 34 ton dengan target produksi 1.000.000 ton pertahun. Unit dump truck yang digunakan masuk ke dalam kategori truck 3 sumbu – sedang, dengan nilai faktor ekivalen beban atau Vehicle Damage Factor (VDF) sesuai dengan tabel dari Manual Perkerasan Jalan 2017. Jumlah lintas harian rata-rata (LHR) semua unit dump truck yang melintas dalam sehari mencapai 270 lintasan sehingga jumlah kumulatif beban gandar standar (CESA) dalam hal ini CESA pangkat 4 sebesar 12.86 x 106 dan CESA pangkat 5 sebesar 17.69 x 106.Secara visual dan kondisi yang ada california bearing ratio (CBR) tanah dasar coal hauling road lebih besar dari 6% maka tidak tidak diperlukan perbaikan tanah dasar. Struktur pengerasan berdasarkan ESA5 masuk ke dalam kategori Bagan Desain 3 dimana berdasarkan Bagan Desain 3, desain perkerasan jalan dilakukan dengan menggunakan pondasi agregat kelas A hingga menggunakan asphaltic concrete wearing course (AC WC). Secara aktual Bagan Desain 3 tidak dapat terpenuhi, sebagai alternatif adalah menggunakan Bagan Desain 5 dimana perkerasan jalan menggunakan 3 lapisan, yaitu lapis pondasi agregat kelas A, kelas B dan Burda (lapis penutup berupa laburan dengan ukuran 20 mm).Penerapan perkerasan jalan dengan mengunakan Bagan Desain 5, khususnya penggunaan agregat A di coal hauling road dipilih menggunakan ukuran 10 mm - 20 mm, 20 mm – 30 mm dan 30 mm – 50 mm sedangkan lapisan burda tidak digunakan. Penggunaan agregat modifikasi ini telah dilakukan di STA KM 37 dengan panjang jalan mencapai 300 meter. Tujuan dari penggunaan agregat modifikasi ini yaitu untuk menjaga traksi roda kendaraan dengan permukaan jalan, mempercepat slippery, mengurangi potensi jalan berdebu dan mengurangi perawatan jalan khususnya penggunaan unit grader. Kata kunci: Coal hauling Road, VDF, LHR, ESA, Manual Desain Perkerasan Jalan, Bagan Desain, Agregat  ABSTRACT Coal hauling road is the main road used to transport coal from the Pit to Stockpile Port with a distance of 48 Km using dump trucks capacity 26 - 34 tons with a production target of 1,000,000 tons per year. The dump truck units used fall into the 3 axes - medium truck category, with the value of the Vehicle Damage Factor (VDF) in accordance with the table from the Road Pavement Manual 2017. The average daily traffic count (LHR) of all dump truck units passing in a day reaches 270 passes so that the cumulative number of standard axle loads (CESA) in this case CESA 4 is 12.86 x 106 and CESA 5 is 17.69 x 106.Visually and the existing condition of California bearing ratio (CBR) of subgrade coal hauling road is greater than 6%, there is no need for subgrade improvement. Based on ESA5 the hardening structure will use Design Chart 3 category. Based on Design Chart 3 the pavement design is carried out using aggregate foundation class A to using asphaltic concrete wearing course (AC WC). Actually Design Chart 3 cannot be fulfilled, as an alternative is to use Design Chart 5 where the pavement uses 3 layers, namely the aggregate foundation layers of class A, class B and Burda (the covering layer is a 20 mm diameter).The application of pavement using Design Chart 5, specifically the use of aggregate A in coal hauling road is chosen using sizes 10 mm - 20 mm, 20 mm - 30 mm and 30 mm - 50 mm while the burda layer is not used. The use of this modified aggregate has been carried out at STA KM 37 with a road length of up to 300 meters. The purpose of using this modified aggregate is to maintain vehicle wheel traction with the road surface, accelerate slippery, reduce the potential for dusty roads and reduce road maintenance, especially the use of grader units. Keywords: Coal hauling Road, VDF, LHR, ESA, Road Pavement Design Manual, Design Chart, Aggregate


GANEC SWARA ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 849
Author(s):  
HASYIM HASYIM ◽  
I GEDE PUTU WARKA ◽  
CAHYA PURI ARIATI

     The Mandalika circuit project is a large-scale construction project built in the Mandalika Special Economic Zone (SEZ), Central Lombok, West Nusa Tenggara (NTB). The 4.31 kilometer racetrack will have 19 bends, so it requires heavy equipment to improve the quality production and increase project efficiency. The analysis conducted to obtain the hourly productivity, operating cost, income and profit of excavators, dump trucks, motor grader, vibrator roller, and water tanker used in the worksite of Mandalika circuit.      The hourly productivity for structural cut with a depth of 2 to 4 meter of excavator is 17.778 m3/h and dump truck 11.755 m3/h. The excavator production for stockpiling from  excavated  sources  is  30.521  m3/h, dump truck 13.171 m 3/h, motor graders 1839.780 m 3 /h, vibrator roller 90.414 m 3 /h and water tankers truck 71,142 m 3/h. Motor grader production for road body preparation work is 362,222 m3/h, vibrator roller 126,851 m3/h and water tanker truck 62,250 m3/h. The hourly operating cost for the excavator is Rp. 718,048,581, motor grader Rp. 670,416,081, vibrator roller Rp. 609,423,907, and water tanker truck Rp. 380,806,081. The income and profit from the use of heavy equipment are Rp. 39,488,806,755 and Rp. 3,589,981,523.05.


Author(s):  
Suharmon Suharmon

This research aims to obtain infomation about Arabic learning especially speaking skill in Arabic Language Education Department at IAIN Batusangkar. The research uses a quantitative approach. The instruments to collect the data are test and questionnaire. The data were analyzed using descriptive statistics. The results of the research state that the students’ speaking ability at class “ A “ are 28% low, 36% moderate, and 36% high. While, at class “B”, students’ speaking abilities are 36.4% low, 40,9% moderate, and 22.7% high. The cause of students’ low ability is the unappropriateness of teachers’ strategy in teaching speaking. There are about 96% students at class “A” agreed and 86.4% students at class “B” had similar answer. Another cause is students’ low motivation in learning. Class “A” students agreed for about 76% of them and 77% of class “B” students answered the same. From the finding, it can be concluded that the inability of students to speak Arabic can be overcomed by improving teaching strategies and encouraging maximum motivation  to learn Arabic.


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