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dc.contributor.authorกฤษณะ ชอบเรียบร้อยen_US
dc.contributor.authorดนัย วันทนากรen_US
dc.date.accessioned2017-09-25T07:42:04Z
dc.date.available2017-09-25T07:42:04Z
dc.date.issued2017
dc.identifier.urihttp://repository.rmutr.ac.th/123456789/637
dc.description.abstractEarth moving is one of important processes in cost estimating of the construction work. Commonly, it can be seen that small to medium-scaled contractors estimate the unit cost of work from their experience without knowing its real cost. Therefore, this research aims to evaluate the unit cost of earth moving. Collected data pertaining to cost include the ownership and operating costs. A production rate of equipment involves volume of the truck bowl and its cycle time in moving the earth. For this study, the haul distance between the excavating area and the dump site is set at 0.5, 1, 2, 3, and 4 kilometers, respectively. Also, the equipment used for conducting an experiment constitutes one excavator and five trucks. Queuing theory is also applied in analyzing the productivity of the trucks. The results from the study reveal that 4 trucks are the optimum numbers for a short haul distance of no greater than 1 kilometer with an equation of unit cost y = – 0.146x2 + 1.543x + 8.928 baht/m3. Where a haul distance is varied from 1 kilometer up to 4 kilometers, 5 trucks are the most appropriate choice with an equation of unit cost y = –0.054x2 + 0.944x + 9.352 baht/m.3en_US
dc.language.isoTHen_US
dc.publisherคณะวิศวกรรมศาสตร์ มหาวิทยาลัยธรรมศาสตร์en_US
dc.subjectEarth movingen_US
dc.subjectQueuing theoryen_US
dc.subjectCost of Earth Movingen_US
dc.subjectProductivity of Construction equipmenten_US
dc.titleApplication of Queuing Theory for Determining the Cost of Earth Movingen_US
dc.title.alternativeการประยุกต์ใช้ทฤษฎีแถวคอยเพื่อหาต้นทุนการขนย้ายดินen_US
dc.typeResearchen_US


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