Material damage during handling.
43.
78.
10.
48.
33.
Insufficient technical personnel and experienced construction personnel.
The processing standards or specifications are not updated in time, resulting in the unavailability of processing materials.
The water and electricity lines on the site are chaotic, affecting the construction.
Insufficient protective measures lead to low reuse rate of formwork.
Neglect to check the machine to keep it in good condition and avoid faults.
Material receiving is not standardized, and main materials such as reinforcement and cement are wasted or lost.
50.
100.
71.
The length of tie bar and stirrup elbow is too long.
80.
6、 Accidents 81.
Excessive or insufficient concrete vibration leads to rework.
lack of communication and cooperation with other managers or departments.
The mortar joint shall be strictly controlled.
Incorrect placement of mechanical equipment.
Treat defective materials as good products into the process.
23.
6.
management of the project department 90.
52.
It is allowed to use inappropriate materials, such as too good or too poor.
The site traffic and space of the material supply department can meet the actual needs.
The implementation of the company’s policies is not in place.
Of course, it shall first meet the specifications and be adjusted within the adjustable range.
Unnecessary materials are placed in the workplace, and the warehouse is not separated from the workplace.
The overlap is too long during reinforcement binding.
Only when the finished product protection is done can we have money.
The walkway cannot be kept clean and tools are scattered.
Indulge in the bad habits of chatting, leaving work without permission and wasting time.
3.
The technical disclosure is ambiguous and there is no clear technical index requirements.
Site personnel lack understanding of the overall work content.
31.
69.
70.
The cleaned residue can be tamped into a layer of ground as backfill soil.
Tools, materials, equipment, etc.
Regular cleaning (daily, weekly and monthly) can not be maintained for a long time.
Lack of necessary safety assembly: such as gloves, helmet, etc.
46.
45.
34.
Improper arrangement of construction procedures leads to waiting or shutdown for materials during construction.
There are too many irrelevant personnel on the construction site.
Too many workers lack construction experience.
76.
In case of problems, the person responsible for the accident cannot be tracked, so that it cannot be corrected.
Site management personnel have insufficient understanding of the value of materials.
D.
Do not work overtime, resulting in overtime construction.
15.
8.
12.
1、 Construction period 1.
21.
There is no clear standard reward and punishment system.
Insufficient lighting, forming black spots and dead corners.
The construction is not in accordance with the specifications and the project quality is not up to standard, resulting in rework.
20.
The problem is that the cause cannot be found out immediately, resulting in work delay.
Source: Ma Nan said that the copyright belongs to the original author..
19.
87.
22.
Welding rod, steel wire and other small production tools and appliances are seriously wasted.
Poor communication with the supervisor and frequent shutdown for rectification.
The drawings are damaged, difficult to understand and misinterpreted, resulting in processing errors.
The material supervision is not strict, and the mobilized materials do not meet the requirements.
53.
When the mortar is more expensive than brick, the mortar joint shall be kept as small as possible, otherwise it shall be kept as large as possible.
16.
Lack of overall scheduling plan and insufficient utilization of available machines.
4.
Lack of regular cleaning and maintenance.
99.
Failure to check the cracking and damage of water, electricity, compressed air and other pipelines and lines.
49.
79.
24.
Mix the front and back of the formwork.
Wrong materials are used if the correct materials are not received.
Inadequate safety protection.
C.
Lack of discipline and condone careless or improper work.
The safety work is not in place and there are many hidden dangers.
Improper discharge and storage of materials.
You must remember not to delay the visa until the commencement of work.
9.
C.
The template added by rush work can be a visa in a fair and aboveboard manner.
Unscientific support system leads to deformation or damage of formwork.
formwork 47.
66.
35.
58.
A.
2.
Infrequently used machines and equipment occupy a lot of space.
27.
The executive ability of employees can’t keep up.
60.
Concrete quality is not up to standard.
37.
84.
It cannot be implemented for a long time without establishing good safety operation procedures.
Scaffolding Adjustable Base Jack Nut
88.
Material procurement is not transparent.
17.
Due to neglect of supervision, the process connection can not keep up, resulting in a blank period of construction.
Too many materials were received, but the materials were not returned.
94.
Non conforming materials are produced and production is not stopped immediately.
5、 Site visa 68.
5.
93.
67.
B 42.
If the negotiation fails, it is required to ask Party A for a visa.
The certificate for the masonry part must state the damage degree of the brick, otherwise the audit will directly reduce the materials.
Materials are stacked randomly without considering the convenience of construction and processing.
During accounting, do not forget the exhaust pipe and pipe fittings of the insulation layer, the oil impregnated wood wool board and ointment caulking of the surface protective layer.
It must be done at least once a month.
During foundation construction, if the work is stopped due to rain or the construction period is delayed due to Party A, the cost of drainage and precipitation can be signed according to the unit shift.
Not regularly inspected – rope, belt, chain, conveyor belt, lubrication system, etc.
38.
83.
82.
The materials and usage of each process were not checked (standard and difference analysis).
Failed to check whether the work of each stage is provided with appropriate tools and equipment, such as water and electricity pipelines.
63.
96.
The strength of commercial concrete is not provided according to the design requirements.
4、 Site space 55.
91.
29.
Waste caused by backward equipment in high-rise concrete construction.
Lax management of staff travel and transportation expenses.
Failure to pay attention to the importance of rectifying things.
11.
13.
28.
3、 Mechanical equipment 51.
There is no clear standard for the living expenses of the project department.
The layout in the unit is poor and cannot be kept orderly.
Dispose of reusable materials as waste.
In case of large water seepage, a construction scheme can also be prepared to apply for drainage and dewatering measures and slope support measures.
The planning of living quarters is unscientific, and the additional costs are trivial and numerous.
It is not recognized that accident prevention is part of the work.
If you encounter underground obstacles, you should apply for a visa.
If sufficient backfill soil cannot be stacked on site under the condition of narrow site or unstable slope, the outward earthwork volume and haul distance shall be signed.
44.
Danger signs are not marked as required and kept clean and legible.
54.
92.
The process is complicated, and there are too many reports and application forms.
65.
Poor supervision of employees, loose work and low efficiency.
56.
89.
59.
39.
During pouring, the formwork is not blocked in place, resulting in material waste.
Increase in direct and indirect costs caused by personnel changes.
Improper processing of formwork or inconsistent processing standards.
Waste is not scrapped.
Insufficient attention was paid to the transportation plan of materials from the factory to the site.
7、 Personnel and management a personnel expenses 86.
77.
36.
The construction team has its own duties and lacks overall coordination.
14.
97.
85.
62.
25.
B.
75.
Lack of effective systems to prevent material outflow, loss or theft.
Unrestrained business entertainment expenses.
72.
64.
26.
The management of office supplies is chaotic.
61.
site management 95.
32.
74.
7.
57.
30.
If there is water seepage in the excavation, the height of groundwater level can be verified, and the price of wet soil is higher than that of dry soil.
40.
Even if we take a penny around the site and spread a broken sack, we should prove it as soon as possible and apply for a visa.
41.
If the professional knowledge of reinforcement is not enough and the drawing cannot be understood, the material list shall be issued.
that fail to be supervised shall be placed in a certain place.
The debugging of reinforcement processing machinery is not in place.
If the subcontractor damages or defaces your equipment, it is not polite to ask him for a visa.
Uncultivated and supervised articles shall be returned and located after use.
2、 18.
seventy-three If you stop work for a long time, you must remember to stop work.
Unclear command or instruction.
During the construction process, non-standard construction leads to material waste.
Departments and teams pass the buck to each other.
