Case description: the project is divided into two phases of the basement construction construction, the basement in the middle of the existence of a 11-meter-wide * 60-meter-long or so of the long narrow strip of earth in the middle of the same time there is part of the podium basement need to be backfilled with soil, non-conventional earth slopes to backfill, the need for multiple transshipments for earth unit price calculation, taking into account the site equipment : the size of the excavator, small four-wheeled, roadbed panels, sprinklers and the corresponding personnel with what unit price is appropriate, backfill earthworks volume of 5300m3 or so; from the mechanical operating efficiency, working time, work shift unit price of the work of the inverse speculation work.
The analysis of the actual construction and measurement of the difference, process tracking, from the point of soil, soil transport machinery, the site paving roadbed compartment plate and backfill area into the number of mechanical inputs on-site image data forensics, clear the actual inputs and the measurement of mechanical inputs to analyze the evidence. Derive a certain difference analysis;
Repeated outside the turnkey maintenance maintenance engineering measurement and pricing issues:
Case description: put into use in the residential project, three buildings fa?ade tile wall peeling and the formation of water seepage on the fa?ade, affecting the owners of the normal use of the need for late inputs to the rectification; at the same time, for the roof and basement roof there are a large number of leaks need to be dealt with, how to carry out the maintenance work to promote and implement? How to promote and implement the maintenance work?
Implementation;
1. First by the property statistics of the above three cases of the site specific need to repair points, the formation of a table, a clear part, leakage points; and take the corresponding site photos, clear repair initial workload, by the engineering issued by the preliminary treatment program
2. For the maintenance unit rectification before the need to make clear that the above relevant "leakage points "Whether the original general contractor in the contract warranty period; here, it should be noted that if the quality of matters occurring during the warranty period, the need for timely written fax or e-mail form to the other unit to form the maintenance of the informational book, clear within a certain period of time, the general contractor's maintenance responsibilities, if not timely maintenance, resulting in losses? As well as outsourcing the third party to bear the corresponding costs
3. For the maintenance unit to rectify the input of people, materials, machines, first clear the corresponding measurement of the pricing method:
a. Artificial use of on-site signing measurement, property maintenance personnel to confirm that can be recommended to the maintenance of the special communication group, clear the corresponding maintenance arrangements, maintenance of the work, maintenance of the matter of feedback, supervision of the implementation of maintenance of the landing of the property maintenance personnel to provide the food and lodging arrangements.
b. Material input: first comb site maintenance related materials: sand + cement + wall paint + waterproofing materials (plugging king + JS waterproof coating + polyurethane + waterproofing roll-roofing, etc.), clear procurement of the market price of the basis for calculating (the information price or according to the normal procurement to provide the appropriate invoice, the later by the property acceptance, into the warehouse, the construction unit by itself to collect materials, or by the property monitoring) Collaterals, to ensure that the material is actually put into the project)
c. Mechanical inputs: Cradle Clearly need to be put into the construction of the work surface, while clear treatment, the basket plans to invest in the three buildings three sets of equipment, the installation of acceptance of the cost of a dismantling, removal costs; the relevant aerial workers accidental safety insurance (to ensure that there is a certificate of the corresponding work at height, while clear according to the individual configuration of the insurance); the facade of the wall tile The wall tiles on the fa?ade are removed, and the property is required to carry out a stage of enclosure underneath to avoid injuries caused by falling objects and to ensure the restoration of the ground at a later stage
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? Repeat prefabricated pipe pile broken pile repair
Case description: general contracting site pile bearing platform construction process, found that there are 8 broken piles on site, the site preliminary feedback, pile damage caused by the pile testing unit, need to be borne by the relevant costs; Reason: Heavy pile testing equipment parked in the location of the broken piles, move the machine when the site using the in-situ shift, and the original backfill soil for the silty soil, the backfill itself has a problem The average length of broken piles on site is about 3m, thus it is predicted that the relevant cost items occurring in the piling: foundation earth excavation + piling broken piles at the bricklaying tire mold + piling reinforcement cages + concrete + backfill construction in the later period
How to improve the definition of the relevant responsibilities and cost analysis of this case, looking forward to you can communicate with each other, a personal point of view, thank you for sharing