Cost of the scheme cost estimate is the basis for the preparation of scientific and rational basis for cost control objectives.Therefore, the cost estimate the cost of programs to improve science, reduce costs and improve economic efficiency, has an important role.Better cost control, cost forecasting the first grasp.Cost projections focused on the use of scientific methods, combined with the price based on the purpose of construction conditions, mechanical equipment, personnel quality and other objectives of the project cost prediction.
Workers, materials, cost forecast
① First, analysis of the project with unit labor costs, then the level of wages and social labor market conditions, according to the duration and the number of people prepared to invest in the project if the contract price of labor costs wrap.
② materials account for a great proportion of Ken fees should be accurately focus were the main materials, flooring, DPM, each item of other materials, re-approved materials supply location, purchase price, mode of transport andloading and unloading, of the fixed material specifications set forth in the actual specifications of the different materials used, compared with the ratio of the actual amount of cement used and the difference between a fixed amount, pooled analysis of the budget of other materials, the actual operation in the concrete must be mixedthe amount of additives and so on.
③ mechanical royalties: Tender facilities group machinery and equipment models, the number is generally used scale in the construction method sets counted out, and the site actual construction has some differences, the working efficiency is different, so to measure the actual going to happen machinethe fee.At the same time, have to calculate possible costs and the need for new machinery leasing machinery and equipment acquisition fee amortization expense, the main mechanical re-approved Taiwan class production quota.
Construction cost changes caused by the prediction program
After winning the project, the actual construction site must be combined to formulate a technologically advanced and economically feasible and reasonable implementation of the construction design, with location of the project's economic, natural and geographical conditions, construction technology, equipment selection, duration of the actual situation of the arrangements, moreimplementation of the facilities group construction method used in the different time of preparation of the tender, or fixed in the different construction methods in order to truly make the right prediction.
Prediction of aided engineering fees
Aided engineering refers to the amount of design drawings, bill of quantities or not given, but is indispensable to the construction, such as concrete mixing stations, tunnel construction in three two-line, high pressure hole, also required under the implementation ofgroup practice facilities make specific predictions.
Prediction of large-scale facility fee
The forecast costs of large temporary work should be investigated in detail and fully demonstrate comparison to determine a reasonable target.
Small facility fee, transfer fee prediction site
Small facility fee includes: the erection of temporary facilities, need to be based on the length and duration of investment personnel, equipment, temporary facilities to determine how much the size and standard, and with reference to the past, according to the actual construction of the historical data to determine lump sum controltarget.Site transfer fee should be based on the distance and the transfer to be transferred from the personnel, equipment, forecast the number of the approved target.
Predict the risk of runaway costs
Objective risk analysis of project cost, is implemented in this project to achieve the objective factors that may affect the analysis in advance, usually come from the analysis of the following aspects:
1) The technical characteristics of the knowledge of the project, such as structural features, geological characteristics.
2) analysis of the situation the unit owners, including owners of units of credit, the availability of funds, coordination, and so on.
3) the analysis of project organization within the system, including the facilities group design, resources and equipment, the quality and so on.
4) the project site transportation, energy, power analysis.
5) Analysis of the climate.
In short, through some major cost of these forecasts, to determine the workers, materials, machines and indirect costs of control standards can also be determined to be more long-term employment in the period to complete the project, the goal to complete control of management fees.Therefore, the cost estimate is the basis for cost control.