Description of work delay

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, 2065438+In July and August, 2007, it was a rare continuous high temperature weather. At this time, pile foundation construction and foundation construction were being carried out on 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, 20 17, 1 1, the weather is relatively cold, at this time, internal and external walls are being painted, according to the regulations, painting work is not allowed in winter construction, and the cold weather also greatly affects the painting construction progress. 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.

Because this project is a single machine, it can't be produced by assembly line, so it causes a lot of slowdown. Originally, the schedule of one floor per week will be two floors per week.

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 20 17, due to the approaching of the Spring Festival, it was originally planned to have a holiday at 65438+125, and start work on February 14. Finally, considering the mood and weather factors of construction workers, it is planned to have a holiday on June 65438+10.5, and start work on February/kloc-0.9.

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.

Shanghai haiyi construction (group) co., ltd

6 1728 Army Training Center Project Department

Project Manager: Huang 20 18 07 13

Description of work delay [Chapter 2]

Our project department officially entered the construction site on March 15, 2065438, and carried out the foundation acceptance of the office building and the production auxiliary building on April/0/2, 20 10, which basically met the submitted general schedule (after examination and approval), 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 our project department on May 20 12 14 to suspend the internal wall construction of the office building and production auxiliary building until the drawings were changed. On June 20 12 14, our project department only got the changed sketch to continue 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 3.20 12.6. 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 provided by Party A in the maintenance workshop submitted by our project department, some of the earliest components should be mobilized on May 20 12 15, and some components have not yet mobilized, which seriously affects the construction progress.

5. According to the mobilization plan submitted by our project department, the steel crane beam should be mobilized on May 20, 20 12, but it has not yet mobilized, and the owner requested to suspend the external wall construction, which delayed the construction period by about 20 days.

On May 3rd, 20 12, the owner informed us to suspend the construction of 1# concierge, and we didn't get the changed drawings until May 3rd, 2012 to continue the construction.

On May 3, 20 12, the elevation of 2# doorman was raised, and my project department didn't give me an answer until May 3, 2012.

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 could have been installed, but some fire boxes could not be installed due to the change of the internal wall. On July 20, 20 12, this problem was raised with the owner, and the preliminary plan was not given until August 3, 20 12, 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

20 12-7-25

Description of work delay [Chapter 3]

There are several reasons for the delay in the progress of the belt transportation downhill project of X team in XX coal mine: since May, the working face of XX project department has been flooded into my tunneling face, the main transportation belt has failed, the wind pressure is insufficient, and the tile electricity is blocked. In addition, the geological conditions of the working face are not good, mainly mudstone, which leads to the failure of our excavation team to operate normally: shift work began on May 3 18: 30.

Run water at 4: 00 15: 50 on may 5.

Run water at 4: 00 15: 30 on may 8.

Run water at 5: 50 on May 9.

The running water from 8: 00 to 22: 30 on May 13 was not effectively controlled.

On May 16, the four-o'clock shift 16: 30 was effectively controlled until 2100 that night, resulting in abnormal production of two shifts.

00: 16 running, zero shift, may 18.

The main conveyor belt failed at 22: 10 on May 8, resulting in no production on duty. Run water at 23: 50 on May 20th, control the water inflow at 6: 30 on May 2nd1day, and discharge the accumulated water in the work area at 8:30.

Run water at 4: 00 and 20: 25 on May 29th.

Run water at 4 o'clock 16: 48 on May 30th.

At 4: 00 on June 3, the wind pressure was insufficient, which affected the whole shift from the beginning of production.

Run water at 4 o'clock 16: 05 on June 5.

On June 12, the main conveyor belt broke down, and no slag was discharged from 8: 00 am to June 13:00 pm. At 4: 00 pm on June 18, the electricity blocking circuit of the working face was abnormal, and the working face could not send electricity until 8:00 pm on June 19.

At 4:00 19:22 on June 20th, four belts of the main carrier failed, resulting in two points not producing.

In addition, the power failure test at eight o'clock every Monday makes my working face unable to produce normally.

It is hoped that the leaders will consider the actual production situation and give appropriate attention and consideration.

XX coal industry wa x team

20 17-6-23