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Description of project extension
1. Considering the normal work of the staff of the sub-branch, the office cannot be vacated at one time, and the renovation project can only be carried out in stages.
2. According to the requirements of Party A, the construction period has been postponed due to the increase of roof waterproofing and fire fighting works.
3. The construction site is inconvenient, and the noise of ground removal is too loud. In order not to affect the normal work of the branch staff, it can only be done on weekends.
Based on the above reasons, the delay of the project duration is an objective reason, and there is no intentional delay of the project duration by both parties!
Party A:
Party B:
20xx year xx month xxx day
Description of project extension II. Our project department officially entered the construction site on March 15, 20XX, and carried out the foundation acceptance of the office building and the production auxiliary building on April 10, 20XX, which basically met the submitted general schedule (approved), and the production work progressed smoothly. However, in the subsequent construction, the following main reasons seriously affected the construction progress. Our project department hereby explains.
1. During the construction of the secondary structure, the owner informed me that the project department would suspend the internal wall construction of the office building and the production auxiliary building on May 4, 20XX, and then start the construction after the drawings were changed. On June 4th, 20XX, our project department got the change sketch and continued the construction, which delayed the construction period for a whole month.
2. After the wall masonry was basically completed, the owner informed us several times that some holes needed to be adjusted, so we had to smash and clean them up, and the office building was still under construction. 1 1 door.
The technical verification sheet of 3.20XX.6. 19 was given to the owner on the same day, but the owner didn't reply to us until the beginning of July.
4. According to the mobilization plan of the components supplied by Party A in the maintenance workshop submitted by our project department, some of the earliest components should be mobilized on May 15, 20XX, but some components have not yet mobilized, seriously affecting the construction progress.
5. According to the mobilization plan submitted by our project department, the steel crane beam should be mobilized on May 20, 20XX, but it has not been mobilized so far, and the owner requested to suspend the external wall construction, resulting in a delay of about 20 days.
6.20XX On May 3rd, the owner informed us to suspend the construction of 1# doorman, and we didn't get the changed drawings until May 5th, 20XX to continue the construction.
7.20XX raised the question of 2# guard's elevation on May 3rd, and it was not until May 3rd, 20XX 15 that my project department gave me an answer.
8. Marble is hung on the external wall of the office building, and the secondary design scheme has not yet come out, which affects the construction progress.
9. After the masonry construction was basically completed, the fire box should have been installed, but some fire boxes could not be installed due to the change of the internal wall. 20XX raised this issue with the owner on July 20th, and the preliminary plan was not given until August 3rd, 20XX, and the final plan was still uncertain.
10, the owner didn't pay the progress payment as agreed in the contract, which caused the fund turnover of our project department to be very difficult, affected the normal operation of the project, seriously affected the construction progress, and was also the main reason for the delay of the whole construction period.
It is hoped that the owner will negotiate a reasonable completion time with the owner and the supervision unit based on the principle of seeking truth from facts, so that our project department can re-formulate a schedule and better guide our project department.
Nantong wanzhong construction group co., ltd
9 th projects department
20XX.7.25
Description of Project Extension 3 of Audit Bureau of Yantian District, Shenzhen:
The Notice on Checking the Audit Results of the Roof Insulation Reconstruction Project of Tiandong Primary School Teaching Building has been received. Upon verification by personnel who have learned from mistakes, the construction period of this project exceeds the contract time by 48 days, and the main reasons for the delay are as follows:
1. The actual commencement date of this project is July 28th, 20XX (see the unit project commencement application report for details). Construction from Monday to Friday affects the normal teaching of the school, and the school requires that construction can only be carried out on Saturday and Sunday.
Second, due to the needs of education and teaching, schools sometimes ask for suspension of construction. The above two points delayed the construction period. During the construction, the construction unit truthfully reflected and communicated the above situation to the Education Bureau, and we agreed to postpone the construction period. Hereby, please handle it as appropriate.
Shenzhen Yantian District Education Bureau Education Service Center
20XX July 23rd
Explanation on the Project Extension Article 4 xx Middle School in Sichuan Province:
The student apartment building construction project of xx Middle School in Sichuan Province, which was undertaken by jiangyou city xx Construction Engineering Co., Ltd., passed the completion acceptance of relevant units on July 18, 20XX. Acceptance conclusion: Agree to acceptance. Calendar days of contract duration of this project: 2 10 days. Actual completion calendar days: 399 days.
The actual completion calendar days of this project are 65,438+089 days longer than the contract period, and the reasons for the delay are as follows: 60 days more due to your loan, 20 days more due to the approval of the fifth floor of the building, 90 days more due to the installation of buried water supply and drainage pipe networks in outdoor projects, and 65,438+089 days more due to the installation of buried cables in outdoor projects, totaling 65,438+089 days more.
Construction unit: jiangyou city xx Construction Engineering Co., Ltd. (seal)
Supervision unit: Chongqing xx Construction Supervision Co., Ltd. (seal)
Setting: xx Middle School, Sichuan Province (seal)
July 19th, two thousand xx.
Throughout the whole construction process, the main reasons for the delay in the construction period are as follows:
First of all, the weather factor
1, in July and August of 20XX, there was a rare continuous high temperature weather, and at this time, pile foundation construction and foundation construction were going on at the site. In order to ensure safety, the construction workers had to suspend construction during the high temperature period, which greatly affected the whole construction progress; At the same time, due to the overheated weather, the construction workers are in a great mood, which greatly reduces the work efficiency of the construction workers.
2. The continuous rainy weather after the Spring Festival made it impossible to carry out many outdoor work, such as the construction of real stone paint on the external wall.
3.20XX 165438+ 10, the weather was cold, and the interior and exterior walls were being painted at this time. According to the regulations, painting is not allowed in winter construction, and the cold weather also greatly affects the progress of painting construction. 13, 12, 14, 14 are basically suspended.
Second, human factors.
1. When Shanghai Haiyi Company started construction, due to insufficient understanding of underground soil, one of the piles appeared quicksand and hole collapse at the position of five to seven meters, and timely reported to the owner, supervision, design institute and survey institute. After that, several parties decided to suspend the construction through consultation and inspect the completed piles. Later, it was found that all the piles could meet the design requirements and agreed to re-construct. This period has been * * * *.
2. The static pressure test of pile foundation was originally arranged for only three days. Later, the owner requested to increase the number of static pressure tests at the pile site, and it took twelve days. It also affected the progress to some extent.
3. Because this project is a single machine, it can't produce assembly line, which leads to a lot of slowdown. Originally, the schedule of one floor and one floor required two floors.
Third, environmental factors.
1, the available space is small, so many materials can't enter the space at once. You must use up some materials before other materials can enter. The material supply is not timely, which causes the progress to slow down and affects the progress.
2. Because this project adopts 50% sloping roof, the slope is very large and the construction technology is difficult. At the same time, the roof construction is in winter, and the formwork is very slippery after freezing, which is extremely unsafe. After research, it was decided to carry out the construction of the last few working procedures of the roof after the Spring Festival, which also greatly affected the progress.
Fourth, the Spring Festival factor.
At the end of 1 and 20XX, due to the approach of the Spring Festival, it was originally planned to have a holiday on 1.25, and start work on 14 in February. Finally, considering the mood and weather factors of the construction workers, 1.05 was on holiday, and construction started on February 19, which was equivalent to one more.
Verb (abbreviation of verb) variation factors
1. There are many minor design changes in this project. In order to ensure that the construction is well founded, all the changes have been approved by the design institute in writing, and some modifications also require the design institute to draw revised drawings again, which has caused a cycle and affected the project progress to some extent.
Xxx (group) co., ltd
Description of project extension: 5 xx Bureau of Industry and Information Technology:
The technical renovation project of 150000 multilayer plastic oil tank applied by our company started in August of xx, and the planned completion time is xx 10. The project cannot be accepted as planned for the following reasons: (1) There is a big gap between the project budget and the equipment market price. The investment budget of the project is12.6 million yuan, but the actual value of imported equipment is more than 20 million yuan. The budget gap prevented the company from raising funds as planned. (2) Technical reasons. The focus of the project transformation is to introduce hollow blow molding machines from Germany. There is a shortage of domestic technicians, and there have been many serious equipment failures during the trial production of products, which has brought huge economic losses to the company.
Due to the above reasons, our company put forward an application for extension of project acceptance, which was postponed to completion on June 10 in xx. I hope it can be approved.
Xx company limited
20xx year1the first day of October.
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