1, double counting of large numbers. Generally, the quantities are divided among several people, so cross-checking can be carried out after the calculation is completed, and the main quantities in each other's calculation can be checked separately. If there are many differences, you can check them in detail again.
2. Check the indicator. There will be a certain logical relationship between the engineering quantity and a certain index range. These index ranges can be used to check whether the calculation results are biased. If it is out of range, you need to check it carefully.
3. Recalculate the contract. For projects whose drawings are not yet in place, we generally suggest that Party A adopt the method of tentative quantities, and give priority to evaluating the comprehensive unit price when bidding. After winning the bid, we will recalculate the engineering quantity and sign the final contract. This method is suitable for projects with incomplete drawings, but similar projects, and the list description is basically no problem.
4. Don't leave out the items in the list of non-entity items. In addition to the net amount of physical items, the items listed in the bill of quantities must also be listed in non-physical items. Non-material projects are mainly measures, which refer to the technical, life, safety and environmental protection projects that must occur before and during the construction in order to complete the construction of the proposed project. Although these projects do not constitute engineering entities, they are necessary to complete engineering entity projects. Therefore, when listing projects, it must be calculated according to the construction organization design or design drawings. Especially the municipal engineering of old city reconstruction or the municipal bridge engineering across rivers and railways. Non-entity projects involve many contents and are easy to be omitted, which needs to be paid attention to.
5. Use the comparison method of similar projects to find out the differences of the projects in the difference list. In recent years, there are many construction projects in China. When compiling the bill of quantities, if we don't fully grasp the list, we can find the same type of projects that have been compiled or completed before and compare them with similar projects. By comparing the list of project types item by item, we can easily find the missing items and wrong items of the list items we have made, so as to solve the problem quickly. In this way, the items in the bill of quantities can be compiled quickly, the missing items and wrong items can be reduced, and the efficiency can be improved. We are widely used in practice.
6. Pay attention to the construction organization design and construction scheme. In order to make a good bill of quantities, we must combine the specific purpose requirements, design principles, design standards, quality standards, various operating specifications, internal and external conditions of the project location (surrounding environment, geographical location, nearby buildings, structures, road traffic conditions) and other relevant materials and information of each project, so we require our cost personnel to go deep into the construction site and accurately grasp the site situation and surrounding environment. At the same time, we should also carefully analyze and study the construction organization design and construction scheme. Don't list the items in the bill of quantities behind closed doors only according to the design drawings. We should pay attention to the research and analysis of the construction organization design and construction scheme to avoid mistakes and omissions in the list and reduce design changes.
I believe that after reading the above introduction, you have a certain understanding of the knowledge of "how to compile the bill of quantities". If you want to know more about this, you can visit the bidding website!
For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd