What are the methods that can be taken when a tall building is demolished?

For our human life now, the material conditions have improved a lot, and more and more people live in the community. Most of the houses in the community are now high-rise buildings.

There will also be the problem of demolition of these high-rise buildings, so people will be confused about what methods can be taken when high-rise buildings are demolished? In fact, from my point of view, the fastest method to use is definitely the blasting method, this method is generally more demanding for the construction system, if the surrounding environment of the building is not very ideal, it is recommended not to use, you can also take other methods, such as using an excavator to dig. Let's break it down.

1: The fastest is the blasting method:

First of all, the fastest way to demolish buildings is definitely the blasting method, which can be completely demolished by using explosives packs. However, this method generally has high requirements for the environment of the building, if the environment is not very ideal, it is recommended not to use the blasting method, because it will bring some unnecessary trouble, and even its safety needs a lot of consideration. Of course, these will be analyzed by professional personnel, and we don't need to worry about it.

2: Excavator digging:

Another common method is to disperse the people around these high-rise buildings in advance, and then surround the nearby buildings and so on to create a relatively safe area, and then take an excavator to dig here. Slowly realize the whole process of demolition of high-rise buildings. However, this process generally takes a long time, but the safety is indeed relatively high, because it can be controlled manually, compared with the blasting method, the safety of explosives is actually much lower than this.

However, I think that no matter which method is adopted, we must have professionals to analyze it, and we can't rely on our own ideas to make a decision, because when high-rise buildings are demolished, this is a very troublesome problem, and if we say that the method is not right, it will cause great consequences, and we can hardly bear it.

Finally, I think that the current urban development is really fast, and many places have to face the problem of demolition. If some people's homes are in better condition, they can get a large sum of money for demolition. So for example, when I was in high school, I met a classmate whose family was tailoring, and suddenly he became rich overnight and got millions, and he didn't even know what to do with the money, so I think this situation is also more embarrassing.

For modern high-rise buildings, it is true that there are more and more demolitions, but when demolishing, it is important to pay attention to the safety and usability of the methods taken.

QB cutting construction method, "Dharma fall" construction method and other methods. If the QB cutting construction method is used, the roof and floor are dug down with a cutting machine, and then the load-bearing beams and columns are cut, and then the dismantled things are transported to the ground by a tower crane.

High-rise buildings in open areas can be blasted, which is convenient, fast and time-saving. If there are other buildings nearby, the high-rise building is demolished layer by layer to avoid damage to other buildings and people.

The crane can be used to send the excavator to the roof, and the top and ground can be removed layer by layer, and then the load-bearing columns will be removed, and finally the dismantled waste will be transported to the ground.

I think it can be used to blast, of course, this method also has certain safety hazards, and we should take precautions in advance.

1. Manual demolition. When carrying out manual demolition operations, it is strictly forbidden for personnel to gather or stack materials on the floor slab, and the operators should stand on a stable structure or scaffolding to operate, and the dismantled components should have a safe place to be placed.

2. Mechanical dismantling. When mechanical demolition is adopted, it should be carried out from top to bottom, layer by layer, and the non-load-bearing structure should be removed first, and then the load-bearing structure should be removed. The demolition of the frame structure building must be carried out in the order of the floor slab, secondary beam, main beam and column, and the building that is only partially demolished must be reinforced, and then separated and demolished.

3. Blasting and demolition. The blasting and demolition project shall be carried out only after a safety assessment shall be made and reviewed and approved by the relevant local authorities.

Summary. Hello dear, there are 4 ways to demolish a buildingManual demolition. 2.Mechanical Demolition 3Demolition by blasting. 4.Robot demolition. <>

1.Manual demolition. For those buildings with relatively small areas, or buildings located on relatively busy streets, this manual demolition can only be used, because it can better protect the secondary use of previous building materials and does not pose a threat to pedestrians, so manual demolition is more appropriate.

2.Mechanical demolition. For buildings that are uninhabited, do not require secondary use of building materials, and are located in remote locations, they can be demolished mechanically, especially if the floors are not too high and there are no pedestrians around.

3.Demolition by blasting. The demolition of a building with blasting often requires several conditions to be met.

One is the remote location, there are no pedestrians around; second, the building has been abandoned; Third, buildings with higher floors, which meet these three conditions, can be demolished by blasting. 4.Robot demolition.

There are 4 ways to demolish buildings.

Hello dear, there are 4 ways to demolish a buildingManual demolition. 2.Mechanical Demolition 3Demolition by blasting. 4.Robot demolition. <>

1.Manual demolition. For those buildings with relatively small areas, or buildings located on relatively busy streets, this manual demolition can only be used, because it can better protect the secondary use of previous building materials and does not pose a threat to pedestrians, so manual demolition is more appropriate.

2.Mechanical demolition. For those buildings that are uninhabited, do not require secondary use of building materials, and are located in remote locations, they can be demolished mechanically.

3.Demolition by blasting. The demolition of a building with blasting often requires several conditions to be met.

One is the remote location, there are no pedestrians around; second, the rock buildings have been abandoned; Third, buildings with higher floors, and buildings that meet these three conditions can be demolished by blasting. 4.Robot demolition.

In the demolition market, you can see a lot of robots. This demolition method is mainly aimed at the situation of large construction area and urgent demolition. This kind of equipment can be used for the demolition of the big bucket laughing type Jiankong clan Hanzhu, and the spike lead can complete the demolition task in a short time.

There are three ways to do it.

QB cutting construction method: BAI

This method is first dug using a cutter.

Under the roof, the floor and so on, and then cut the load-bearing beams and columns in turn, and transport the dismantled waste to the ground. Mobile cranes can be used when demolishing buildings under 60m, but tower cranes are used for taller buildings. After removing the top, the acoustic panels need to be moved down.

Shimizureversed Construction:

It is to wrap the demolition part like a hat, hang acoustic panels on the load-bearing beams on the top floor, and install a simple roof. An overhead crane is then installed on the roof to transport the demolition waste down using a pre-existing passage inside the building. A column-shaped hydraulic jack is arranged at the part of the column, and after the ground and the load-bearing beam are removed, the cap part is partially dropped by using the hydraulic jack.

Dharma Fall" construction method:

First of all, a hydraulic jack should be inserted under all the columns supporting the building, and then one of the jacks should be lowered separately so that one column is suspended in the air, and the building is supported by other columns and jacks, and about 80cm is cut off from the bottom of the suspended column, and then the jack is raised again to support the column. After this is done for all the columns, the jack is lowered at the same time. In this way, the building will be lowered in height by about 80 cm in a layer, just like when a building block is knocked out in a game of "Dharma Fall".

The characteristics of this construction method are that the work is carried out only on the ground floor of the building, so there is no need to worry about noise and dust from the upper floor, and there is no need for people to move up and down, which is convenient for safety.

If the building that has been approved for construction in accordance with the law needs to be demolished, the construction unit shall report to the competent department of urban and rural planning for approval; Without approval, it shall not be dismantled. It mainly includes manual demolition, mechanical demolition, blasting demolition, and static crushing demolition.

Coordinate the coordination of manual demolition and mechanical demolition!!

Directional blasting, but with a lower building density.

Modern high-rise buildings are all steel structures, and if they are to be demolished, they should be similar to the principle of ship dismantling (big ships, not small boats). Remove the cement slab of the partition, remove the rivets that connect the steel beams, melt the solder joints, and remove them one by one.

First, it should be noted that if it is necessary to expropriate houses, it should meet the requirements of the national economic and social development plan, the overall land use plan, the urban and rural plan, and the special plan.

It is illegal to adulterate if there are other beneficial purposes and unfavorable factors, but the overall judgment of this aspect is difficult.

2. Requirements for the issuance of expropriation notices.

It should be noted that when the decision on the expropriation of the purpose of housing is made, it should be announced to everyone in a timely manner, and the announcement should be accompanied by a compensation plan for housing expropriation and resettlement, and you can pay attention to whether there is any content that informs the expropriated person that he has the right to apply for administrative reconsideration and file an administrative lawsuit.

3. Requirements for the formulation of resettlement compensation.

As far as the resettlement compensation plan is concerned, the proposed expropriation and resettlement compensation plan needs to be demonstrated and published, and the most important point is to solicit public opinions (the period shall not be less than 30 days). If everyone does not agree, a hearing should be organized and the plan should be revised according to the hearing.

4. Requirements for the collection of standard planning.

1.The development and reform department examines whether the project is in line with the national economic and social development plan;

2.The urban and rural planning department reviews whether the project is in line with the urban and rural planning and special planning;

3.The land and resources department reviews whether the project is in line with the overall land use plan;

4.Where it is necessary to levy the old city reconstruction or affordable housing projects, it shall be examined whether it is included in the national economic and social development plan of the previous year.

This part needs to be tested in conjunction with the application for information disclosure.

When a building is demolished by mechanical or manual means, it is carried out in strict accordance with top-down procedures. Demolition works refer to the demolition of buildings that have been completed or partially completed. According to the subject matter of demolition, there are demolishing civil buildings, demolishing industrial plants, and demolishing foundations.

The demolition of machinery and equipment, the demolition of industrial pipelines, the demolition of electrical lines, the demolition of construction facilities, etc., can be divided into full demolition and partial demolition (or partial demolition) according to the degree of demolition; According to the different utilization degrees of the demolished building components and materials, it is divided into destructive demolition and demolition; According to the different spatial locations of demolished buildings and demolished objects, there are above-ground demolition and underground demolition.

Safety first: the safety of construction technical solutions and on-site implementation.

Adaptation second: the technical scheme must be adapted to the engineering boundary conditions.

Fourth: Since there is no economic benefit in the later stage of demolition, the technical scheme and construction management that can save money are optimal.