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Anonymous users2024-02-111. Deep foundation pit engineering.
Excavation to a depth of more than five meters, including five meters of earthwork excavation.
Support and dewatering projects, or earthwork excavation, support and dewatering projects with an excavation depth of no more than five meters, but the pipeline is complex and affects the safety of adjacent buildings.
2. Formwork engineering.
Synovial membrane at construction sites.
Climbing, flying mold engineering. The height is more than 8 meters, the span is more than 18 meters, and the total construction load is 15 thousand N.
Formwork projects per square meter, formwork projects with a concentrated load of more than 20 kN per square meter. Steel structure installation and other full-hall support systems carry a single-point concentrated load of more than 700 kg of projects.
3. Lifting, hoisting and installation engineering.
The project of lifting and hoisting using unconventional equipment and methods, and the weight of the monomer is more than 100 kN. Lifting equipment installation project with a lifting capacity of more than 300 kN. Lifting equipment dismantling works with a height of more than 200 meters.
4. Scaffolding engineering.
Erection of floor-mounted steel pipe scaffolding works with a height of more than 50 meters. Erection of attached integral or sliced lifting scaffolding projects with a height of more than 150 meters. Cantilevered scaffolding with a frame body of more than 20 meters.
Engineering. 5. Demolition and blasting works.
Demolition of wharves, bridges, viaducts, chimneys, water towers or special buildings that are prone to cause the diffusion of toxic and harmful gases or liquids or dust, or flammable and explosive accidents during demolition. Demolition works that may affect the safety of pedestrians, traffic and other buildings. Demolition of heritage buildings, outstanding historical buildings or historical and cultural districts.
6. Other projects.
Curtain wall works of buildings with a construction height of more than 50 meters. Steel structure works with a span of more than 36 meters, and installation works of grid or form-locking structures with a span of more than 60 meters or more. The excavation depth is more than 16 meters, and the piles are manually dug holes.
Engineering. Underground excavation engineering, pipe jacking engineering, underwater operation engineering. The use of new technologies, new processes, new materials, new equipment, or for which there are no relevant technical standards for the more dangerous sub-projects.
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Anonymous users2024-02-10Hello The scope of the project with greater risk sub-projects: 1. Deep foundation pit engineering 2, formwork engineering and support system 3, lifting and hoisting and installation and dismantling engineering 4, scaffolding engineering 5, demolition and blasting engineering with greater risk sub-project expert demonstration requirements: 1. Whether the content of the special plan is complete and feasible; 2. Whether the calculation and verification basis of the special plan meet the relevant standards and specifications; 3. Whether the basic conditions for safe construction meet the actual situation on site.
I hope mine can help you
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Anonymous users2024-02-09The distribution of sub-projects with greater risk does not require expert demonstration, and special plans can be prepared. To exceed a certain scale, the risk of a larger sub-project needs expert demonstration. The following is the scope, which you should choose according to the project you have on the site.
Only sub-projects with greater risk than a certain scale need expert demonstration.
1. Deep foundation pit engineering.
A) excavation depth of more than 5m (including 5m) of the foundation pit (groove) of earthwork excavation, support, dewatering engineering.
2) Although the excavation depth does not exceed 5m, the earthwork excavation, support and dewatering works of the foundation pit (groove) that affect the safety of adjacent buildings (structures) or parts, the surrounding environment and underground pipelines are complex.
Second, formwork engineering and support system.
1) Tool-type formwork engineering: including sliding formwork, climbing formwork, and flying formwork engineering.
2) Concrete formwork support project: erection height of 8m and above; erection span of 18m and above; The total construction load is 15kn and above; Concentrated line loads of 20 kN m and more.
3) Load-bearing support system: It is used for full-hall support systems such as steel structure installation, and bears a single-point centralized load of more than 700kg.
3. Lifting, hoisting, installation and dismantling engineering.
1) Lifting and hoisting projects that adopt unconventional lifting equipment and methods, and a single lifting weight of 100kn and above.
2) Lifting equipment installation projects with a lifting capacity of 300kn and above; Dismantling of lifting equipment with a height of 200m and above.
Fourth, scaffolding engineering.
1) Erection of floor-mounted steel pipe scaffolding projects with a height of 50m and above.
2) Lifting height of 150m and above attached integral and sliced lifting scaffolding engineering.
3) Cantilevered scaffolding project with a height of 20m and above.
5. Demolition and blasting works.
1) The project is demolished by blasting.
Demolition works of wharves, bridges, viaducts, chimneys, water towers or special buildings and structures that are easy to cause toxic and harmful gas (liquid) or dust diffusion, flammable and explosive accidents during demolition.
3) Demolition works that may affect the safety of pedestrians, traffic, power facilities, communication facilities or other buildings and structures.
4) Demolition works within the control scope of cultural relics protection buildings, outstanding historical buildings or historical and cultural features areas. 6. Miscellaneous.
1) Building curtain wall installation project with a construction height of 50m and above.
2) Steel structure installation projects with a span of more than 36m and above; Grid and cable membrane structure installation projects with spans greater than 60m and above.
3) Excavation depth of more than 16m of manual excavation pile engineering.
4) Underground excavation engineering, pipe jacking engineering, and underwater operation engineering.
5) The use of new technologies, new processes, new materials, new equipment and no relevant technical standards for the risk of greater risk of sub-projects.
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Anonymous users2024-02-08Wrong. For dangerous projects exceeding a certain scale, the construction unit shall organize and convene an expert demonstration meeting to demonstrate the special construction plan. If the general construction contracting is implemented, the general construction contractor shall organize and convene an expert demonstration meeting.
Before the expert demonstration, the special construction plan shall be reviewed by the construction unit and the chief engineer.
Experts shall be selected from the expert database established by the competent departments of housing and urban-rural construction of local people, and shall meet the professional requirements and the number shall not be less than 5. Personnel who have an interest in the project shall not participate in the expert demonstration meeting as an expert.
More than a certain scale of the risk of the greater sub-project: the need for the construction unit to organize experts to demonstrate some sub-projects, this part of the project is more dangerous than the greater risk of the sub-project, so it is necessary to organize experts to demonstrate, after the demonstration is passed, the construction can be carried out, such as: the excavation depth of more than 5m of the foundation pit, concrete formwork support erection height of 8m and above and so on sub-projects.
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Anonymous users2024-02-07No expert demonstration is required, and only sub-projects that exceed a certain scale and are more dangerous need expert argumentation. The expert group has at least 5 people, and the cost in Sichuan is about 1,500 people. Argumentative opinions are important.
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Anonymous users2024-02-06Answer]: cThis question examines the laws, regulations, guidelines and policies related to safety supervision. The construction unit shall organize and convene an expert demonstration to prepare for the special construction plan.
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Anonymous users2024-02-05Answer]: C This question is about the construction organization design of the project. For the sub-index project that exceeds a certain scale and is more dangerous, the construction unit shall organize and convene an expert demonstration meeting. Textbook p89-99
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Anonymous users2024-02-04Answer]: C more than a certain scale of the risk of the sub-project special plan should be organized by the construction unit Mu Tongbo Xunxiang weaving to convene an expert demonstration meeting. In the case of the implementation of the general contracting, the construction general contractor shall organize and convene an expert demonstration meeting.
The main reason for the failure is the increase in carbon deposits in the throttle, intake tract, valve and other parts, which adsorbs some gasoline when the car is cool, and when the car is hot, these gasoline volatilize, and the mixture will be too thick when the engine is idling, resulting in unstable idle speed of the hot car. Therefore, you should not only check the throttle valve and idle motor, etc., but also check whether there is too much carbon and dirt in the intake tract, if there is too much, it will cause the cross-sectional area of the air channel to change, so that the control unit can not accurately control the amount of idle air intake, resulting in too thick or too thin mixture, so that the combustion is abnormal and causes the engine to shake. At the same time, it is also necessary to check whether the canister is faulty.
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