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1、 南京工程学院毕业设计外 文 资 料 翻 译学 生 姓 名： 学 号： 240076001 班 级 名 称： K 建工 ZB074 所 在 院 系： 康尼学院 20122012 年年 3 3 月月 1010 日日Construction EngineeringAbstract: Construction engineering is a specialized branch of civil engineering concerned with the planning, execution, and control of construction operations for such pr
2、ojects as highways, buildings, dams, airports, and utility lines. Planning consists of scheduling the work to be done and selecting the most suitable construction methods and equipment for the project. Execution requires the timely mobilization of all drawings, layouts, and materials on the job to p
3、revent delays to the work. Control consists of analyzing progress and cost to ensure that the project will be done on schedule and within the estimated cost. Keywords: planning, Execution, Control, Preparation of site, Earthmoving, Foundation treatment, Steel erection, Concrete construction, Asphalt
4、 paving and so on.Construction engineering is a specialized branch of civil engineering concerned with the planning, execution, and control of construction operations for such projects as highways, buildings, dams, airports, and utility lines. Planning consists of scheduling the work to be done and
5、selecting the most suitable construction methods and equipment for the project. Execution requires the timely mobilization of all drawings, layouts, and materials on the job to prevent delays to the work. Control consists of analyzing progress and cost to ensure that the project will be done on sche
6、dule and within the estimated cost. Planning. The planning phase starts with a detailed study of construction plans and specifications. From this study a list of all items of work is prepared, and related items are then grouped together for listing on a master schedule. A sequence of construction an
7、d the time to be allotted for each item is then indicated. The method of operation and the equipment to be used for the individual work items are selected to satisfy the schedule and the character of the project at the lowest possible cost. The amount of time allotted for a certain operation and the
8、 selection of methods of operation and equipment that is readily available to the contractor. After the master or general construction schedule has been drawn up, subsidiary detailed schedules or forecasts are prepared form the master schedule. These include individual schedules for procurement of m
9、aterial, equipment, and labor, as well as forecasts of cost and income. Execution. The speedy execution of the project requires the project requires the ready supply of all materials, equipment, and labor when needed. The construction engineer is generally responsible for initiating the purchase of
10、most construction materials and expediting their delivery to the project. Some materials, such as structural steel and mechanical equipment, require partial or complete fabrication by a supplier. For these fabricated materials the engineer must prepare or check all fabrication drawings for accuracy
11、and case of assembly and often inspect the suppliers fabrication.Other construction engineering duties are the layout of the work by surveying methods, the preparation of detail drawings to clarify the design engineers drawings for the construction crews, and the inspection of the work to ensure tha
12、t it complies with plans and specifications.On most large projects it is necessary to design and prepare construction drawings for temporary construction facilities, such as drainage structures, access roads, office and storage buildings, formwork, and cofferdams. Other problems are the selection of
13、 electrical and mechanical equipment and the design of structural features for concrete material processing and mixing plants and compressed air, water, and electrical distribution systems. Control. Progress control is obtained by comparing actual performance on the work against the desired performa
14、nce set up on the master or detailed schedules. Since delay on one feature of the project could easily affect the entire job, it is often necessary to add equipment or crews to speed up the work. Cost control is obtained by comparing actual unit costs for individual work items against estimated or b
15、udgeted unit costs, which are set up at the beginning of the work. A unit cost is obtained by dividing the total cost of an operation by the number of units in that operation. Typical units are cubic yards for excavation or concrete work and tons for structural steel. The actual unit cost for any it
16、em at any time is obtained by dividing the accumulated costs charged to that item by the accumulated units of work performed. Individual work item costs are obtained by periodically distributing job costs, such as payroll and invoices to various work item accounts. Payroll and equipment rental charges are distributed with the aid of time cards prepared by crew foremen. The cards indicate the time spent
