Analysis on how to reduce engineering visa.

Due to the change of the facade scheme, most of the original curtain wall embedded parts are unusable and re-buried, resulting in a visa fee of about 850,000 yuan.

Experience and lessons: design ideas should not be changed, design drawings must be improved before construction, and no major changes should be made after construction begins, especially the leaders should not change the design scheme at will.

Case 2: Visa due to site conditions

When the foundation trench of a project 1# building was excavated to the design elevation, domestic garbage and soft soil layer were found. After the design change, it is necessary to manually remove domestic garbage and soft soil layer, and then backfill with 3: 7 lime soil. In addition, due to the sudden drop of temperature during construction, the lime-soil work cannot be carried out, but the lime-soil in some areas has ended (the upper part has not been compacted). In order to ensure the quality, lime soil is backfilled with graded sand after excavation.

Lessons: It is inevitable that soft soil and construction waste will turn into dust, but as a manager, you should consider comprehensively and know more about the weather (through weather forecast). If the weather is not unexpected, the visa can be prevented from digging out lime soil to backfill sand and gravel.

Case 3: Due to work visa rush.

Due to Party A's failure to cooperate with many tasks in the early stage of construction, the construction period of a project was delayed by 65,438+00 days. In order not to affect the delivery, Party A requires the construction unit to increase the time limit for recovering the loss of resources, and the construction unit will invest a lot of manpower and material resources to recover the time limit of 10 day to ensure the timely delivery. However, Party A also paid 50,000 yuan for the rush measures.

Experience and lessons: Party A must consider the comprehensive, well-prepared and reasonable arrangement of work in daily management, and cannot affect the project progress because of its own reasons.

Case 4: Visa issuance due to design errors and lax drawing review.

The design of the civil air defense door threshold of Xu Xiang Huafu Project was designed according to the original atlas, which was inconsistent with the structure of the purchased civil air defense door, and the structural reinforcement was bound, which led to the rework of the visa.

Lessons learned: Design institutes should keep abreast of new specifications and drawings in light of actual conditions, and cannot draw drawings based on experience. Party A must carefully review the drawings, and check whether each type of work is contradictory and whether the requirements of the drawings are consistent with the purchased equipment and materials. In addition, the purchased materials should have a certain amount in advance, so that the design can be revised in time when problems are found.

Case 5: Subcontractor A's delayed entry leads to visa.

During the bidding process of a project, the balcony railing was delayed to be installed due to the cost. It was not until some of the external walls were painted that the railing team entered the site, which caused the second repair of the wall and delayed the removal of the external scaffolding, resulting in a visa of nearly 6,000 yuan.

Lessons learned: A subcontractor must bid and enter the site as planned, and it is not allowed to delay the construction period and increase the cost of other measures in order to save a little cost.

Case 6: The visa was issued due to customer requirements and Party A's poor management.

The eighth floor of Building 5, Phase II of Century Plaza is for sale. When customers buy it, they propose to reserve a large space on the whole floor, and the developer is responsible for removing the indoor filler wall. Now the customer has gone through the handover procedures and found that the wall has not been demolished, and the marketing department has applied for demolition.

At this time, the public part has been decorated and the indoor wall has been painted. At present, the original wall is demolished, the public decoration cost, construction waste transportation and pre-laying decoration cost are about 654.38+ten thousand yuan.

Experience and lessons: It is understandable that the customer asks to dismantle the load-bearing wall, but the marketing department didn't ask the company until the end of the project, which led to an increase in the workload of construction and demolition, which belongs to poor management. In the future, it is necessary to strengthen timely communication between departments and deal with problems in a timely manner.

2. Seven main reasons for on-site visa

1. Design change

(1) design reasons

Design optimization will affect the drawing date, and then affect the progress.

B. design errors were not found in time, resulting in rework.

C. rework and supplement caused by design gap.

D. Additional design leads to increased workload

E secondary design (such as fine decoration) causes the original work to be reworked or abandoned.

(2) The reasons for site construction

A. error of construction site conditions

B. whether the construction technology is advanced or backward.

C the original design is difficult or impossible to construct.

D. the construction quality cannot be guaranteed according to the original design.

(3) Marketing reasons

A. Changes in leadership thinking and preferences

B. Customer needs

C. changes in design requirements caused by market competition

(4) Property reasons (property demand)

2. Site conditions

A unclear geological exploration leads to changes in underground infrastructure or soil replacement.

B. The original building is unclear, or the underground obstacles are unclear.

4. How to manage visas?

1. Engineering technology visa management

This is a way for the owner and the contractor to contact and determine the technical requirements or specific construction methods of a certain construction link (including the technical contact sheet), and it is a concrete and effective supplement to the construction organization design scheme. Because sometimes the amount involved is large, it can't be ignored. For the temporary modification of some major construction organization design schemes and technical measures, the opinions of designers, owners and supervisors should be solicited, and relevant personnel should be organized to demonstrate when necessary, so as to make them as safe, applicable and economical as possible.

2. Engineering economic visa management

Refers to all kinds of visas that may lead to the difference between the actual project cost and the contract cost due to site change, owner's requirements, environmental changes and other reasons during the construction period, mainly including the owner's breach of contract, engineering changes caused by non-contractor reasons, engineering environmental changes, contract defects and so on. Because it involves a wide range and the project is complex, it is necessary to master the relevant quotas, documents and contract terms, especially strictly control the visa scope to ensure that the visa content conforms to the relevant provisions of national laws and regulations, bidding documents and construction contracts. In addition, the value of recyclable garbage must be deducted from the visa.

3. Visa management of unit price of building materials

The price visa shall conform to the bidding documents and market conditions. The basis of price visa: firstly, it shall not exceed the price of similar materials stipulated by the tender unit; Secondly, it is necessary to refer to the price information released by the local engineering cost management department and the price management department, fully conduct market research and online inquiry, and ensure that the visa materials are inexpensive through collective research and transparent decision-making. The name, specification, variety, quality, quantity, place of origin, unit price, mode of supply, time and place of the materials shall be stated in the visa.

4. Time limit for a project visa management

On the one hand, the construction period of the engineering visa involves the construction period, on the other hand, it involves the cost, and if you need to catch up with the work in the future, you need to pay the cost of the measures, so the visa should be carefully and strictly examined. According to the construction progress plan, judge whether the construction period of an engineering visa is on the key line or not, and whether it will affect the total construction period.

The idle expenses of the machinery involved should be based on depreciation expenses, not machine shift expenses; The service fee is subject to the service fee visa (because other jobs can be arranged).

I believe that after the above introduction, everyone has a certain understanding of how to reduce engineering visas. Welcome to Zhong Da for more information.

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