How to protect the building from biological destruction? Actions in the event of a building collapse What to do in the event of a collapse

Let's see if it's worth tearing down at all old house, and if so, how can you do it yourself.

Purchase land plot with a house that does not suit the new owner for some reason, the desire to build housing with modern architectural solutions, the need to get rid of dilapidated real estate - these are just some of the reasons why you will have to resort to dismantling and demolition of the old building. Let's figure out whether it is worth demolishing the old house at all, and if so, how you can do it yourself.

The question of the expediency of demolishing or dismantling the building

In the process of making a decision to demolish a building, the feasibility of such a drastic measure should be calculated. It is necessary to carefully, preferably with the involvement of specialized organizations or specialists in the field of construction, examine the structure for the possibility of its reconstruction or completion, other alternatives to demolition and the construction of a new building.

The fact is that often the destruction of an existing structure and the construction of a new one “from scratch” do not justify themselves either in terms of financial costs or in terms of the necessary labor costs. As a rule, labor costs for manual dismantling of a building are almost comparable to the amount of work for the construction of a new object of similar complexity, and in some cases even exceed them.

At the same time, the results of numerous engineering surveys of buildings different type demonstrated that the buildings of high quality built in their time, as a whole, have a fairly high stability and bearing capacity, in general, preserve the welds and the integrity of the embedded parts.

For example, if concrete with a high content of cement was used during the construction of an object, taking into account their long-term hydration, the strength of the foundation of the house may be 30% higher than the design indicators, and the satisfactory condition of others structural elements brick and large-block buildings allows you to complete the reconstruction and even build additional floors or add-ons.

Element-by-element disassembly

Suppose the decision to dismantle the building is still made. How to implement it? The liquidation of residential and other objects in the private sector is carried out by dividing the structural elements of the structure into parts or, by the decision of the owner, in the event of a shortage of time and labor, by mechanical collapse with heavy construction equipment. Other demolition methods, including demolition, thermal or electro-hydraulic impact, are usually used only on large residential and industrial facilities and only by powerful specialized companies.

Despite the fact that the dismantling of structures element by element takes much longer and often costs more than mechanical demolition, using the first method, you can get ready-made components and structures for the construction of a new building - Wall panels, floorings and partitions. In the future, not only whole structures will be useful, but also brick and concrete battles, secondary crushed stone, and high-quality wooden components.

In this case, any element is first released from bonds, and heavy monolithic structures in case of impossibility of dismantling, they are mechanically destroyed into smaller fragments. So, let's look at each stage of the work in more detail.

What to do first

Before dismantling the building, it is necessary to carry out preliminary training. First of all, you should turn off and mute everything without exception engineering Communication.

Attention! In some cases, not only local, but also mainline networks can pass through the site - power supply, sewerage and stormwater, water, heat and gas pipeline systems, communication and television cables.

If such trunks are indeed located on your site, you need to resolve with network operators the issue of the safety of the demolition of the building for trunks and, if necessary, request the transfer of communications to other areas.

After completing work with communications, it is necessary to equip the fencing of the territory where the dismantling will be carried out, deliver necessary equipment and tools, equipment for temporary fixation of structures during dismantling.

Getting started: dismantling the roof

Remember: main principle element-by-element dismantling of buildings lies in its order - always the reverse scheme of the construction of the object, that is, you need to start from the roof.

Immediately before dismantling the roof, all wiring, antennas and other installed elements must be removed from it. After that, attic floors should be fixed.

Important! If a roof with a slope of more than 20 degrees is dismantled, cornices with a removal of more than 0.3 meters from the walls, safety belts must be used.

Demolition of buildings must begin with attic floors, at the same time, if the height exceeds 1.3 meters - use the scaffolding with an emphasis on the floor beams. You can not put scaffolds on the backfill, overrun shields and other elements of the inter-beam space. Hanging rafters in the working position should not be disassembled; before that, they must be lowered onto the attic floor.

Working with overlays

Overlappings need to be destroyed only from top to bottom - after dismantling the structures of the upper floor and completely removing the dismantled elements. If there are no floors, and it is necessary to remove the backfill or run-up, temporary floorings with a width of at least half a meter are placed. Moving on shield decks is allowed only if there are fences and safety belts.

Wooden floors between floors are not completely dismantled - at first every fourth beam is left to ensure the stable position of the walls. The remaining beams are dismantled last. If necessary, you can strengthen the beams with girders and uprights from below.

If we are talking about floors made of brick or reinforced concrete, to prevent the collapse of structures, temporary support is installed with a reliable foundation and with solid flooring. For safety reasons, the dismantling of reinforced concrete ribbed floors should begin with secondary beams.

Dismantling of brick vaults is allowed only after the installation of spacers, which will take on the horizontal load from adjacent vaults. Such spacers must be placed on the lower shelves of the beams in a straight line, while the step should be up to three meters.

Wall dismantling

Walls can be taken apart different ways, the most common of which are: the use of a breaker tool - pneumatic or electric, impact destruction or a roll using heavy equipment.

Before dismantling the walls, the following work must be done:

• dismantle internal engineering networks and equipment;
• remove window glazing
• dismantle door and window fillings.

Attention! Any grooves or recesses cannot be made deeper than a third of the thickness of the wall, and in width - no more than 150 millimeters.

Hemming should be done only in the absence of a vertical inclination of the structure in its direction. If the wall comes down shock method, then you must first protect the area with a width of at least a third of the height of the building.

Stairs, columns and pillars

Stairs, like other structural components, need to be dismantled from top to bottom in the course of dismantling walls and ceilings. Wherein stair railing need to be dismantled by march as the stairs themselves are disassembled. Disassembly can only be carried out within one floor at a time.

When working with columns and poles, these elements must be hemmed after they have been slinged. At the same time, the methods by which slinging is performed must be guaranteed to exclude accidental falling of poles and columns. If the latter lose their stability, they must be temporarily strengthened before dismantling.

Last step: foundation

As a rule, there are no special requirements for the dismantling of the foundation - the order of work at this stage can be arbitrary. It is not recommended to perform obviously unsafe actions - for example, to pass through the openings in the foundation or feed tools through them.

When dismantling, you need to monitor the condition of the slopes of the soil. It is impossible to be in the zone of possible shear or collapse of the structure, especially in cases where there is highway with heavy traffic. published

If you have any questions on this topic, ask them to specialists and readers of our project.

Today, when the bills for public utilities grow by leaps and bounds, the importance of high-quality thermal insulation is to keep warm in winter, cool in summer and wallet all year round, is obvious to every homeowner. Unfortunately, when choosing an insulating material, few people consider its biostability - immunity to the negative effects of living microorganisms. In fact, this problem concerns not only wooden structures. Over time, even stone house turns into ruins if non-bioresistant materials are used in its construction.

S.A. Startsev, 2010 Destruction of the head of a reinforced concrete column as a result of the vital activity of microorganisms

A variety of biodestructor organisms can lead to the violation of the integrity of structures. But the key role in these processes is played by microbes - first of all, the ubiquitous bacteria of the genus Thiobacillus and Acidithiobacillus, as well as mold fungi Fusarium, Penicillium, and some lichens. Having fixed on the material, they can gradually destroy it, without even using it directly for nutrition. Thus, the iron bacteria Thiobacillus and Acidithiobacillus are able to oxidize iron for energy. In nature, this leads to the appearance of "rusty" reservoirs, in construction - to damage and destruction. metal structures.

Wikimedia Commons The iron bacteria Thiobacillus and Acidithiobacillus are able to oxidize iron for energy. In nature, this leads to the appearance of "rusty" reservoirs, in construction - to the degradation of metal structures.

chain of destruction

Under the influence of organic and inorganic acids there is a partial and complete destruction of the structure, even built of metal, concrete or natural stone. Biogenic gases, such as ammonia and methane, react aggressively with materials. Many bacterial waste products act as catalysts that speed up reactions that cause materials to age. And in itself, the growth of biomass in cracks and internal cavities wedged them, causing mechanical damage.

An additional contribution is made by the corrosive effect of moisture, which constantly condenses on the surface of buildings and structures. Houses heat up and cool down more slowly than their natural environment, and urban air contains higher levels of carbon dioxide, sulfates, nitrogen oxides and other compounds. All this greatly facilitates the life of destructive microorganisms. No wonder the restorers involved in the restoration of historically valuable buildings must conduct their microbiological examination, developing protection measures.

However, it is extremely difficult to fight microbes: once on the substrate, many of them are able to form so-called biofilms. The secretion of adhesive mucous compounds by cells allows them to firmly attach to the substrate and to each other.

Wikimedia Commons Fusarium molds cause plant diseases and can lead to severe poisoning in humans. Some of them affect the skin, causing dermatitis.

The process develops along the chain: materials of heat and waterproofing damaged by microorganisms-destructors lead to a violation protective properties structures, and the destruction spreads the farther, the faster. It is not surprising that specialists pay great attention to the problem of biodegradation, take it into account when preparing building codes. Scientists are trying to better understand how it happens, and consumers are starting to wonder about biopersistence. building materials.

Phases of biofilm formation and development: attachment, growth, distribution.

Barrier

PENOPLEX boards are a new generation heat-insulating material made by extrusion from polystyrene. is chemically and physically neutral, does not absorb moisture, is not exposed to the biochemical and biophysical effects of microorganisms. Experiments have shown that it has biostability both in air and in water.

In the studies, scientists simulated real operating conditions thermal insulation material in the structures of buildings and structures - foundations, floors, walls, roofs. This required a combination different kinds negative impacts external environment for material: high humidity, variable temperature, the presence of organic and mineral substances, the involvement of degrading microorganisms.

For testing, PENOPLEX was used, selected in accordance with the recommendations for the protection of building structures from corrosion (SP 28.13330.2012) and the current standards (GOST 9.048-89, GOST 9.052-88, GOST 9-049-91). First of all, these are microorganisms that are regularly found on waterproofing and building materials in various conditions operation, and also represent the most aggressive in terms of impact on the material and the most stable forms.

Experiments have shown that inert material PENOPLEX is not decomposed by microbes and cannot be used for nutrition. In addition, it does not absorb at all and, accordingly, does not accumulate moisture, preventing conditions that favor the development of bacteria and fungi in pores and voids from arising. Finally, the PENOPLEX surface turned out to be completely unsuitable for the formation of biofilms. As a result, even if potentially destructive microorganisms get on it - which is inevitable in real conditions of use - the material does not allow them to develop a sufficiently large and dangerous community.

Thus, a significant condition and guarantee that prevents the development of destructor microorganisms is the competent choice of moisture- and bio-resistant heat-insulating material, as a safe and consistently effective component of any construct.

The dismantling and destruction of a building is understood as a complex process of removing some part or all of the structural elements of the building, freeing and clearing the construction site, followed by removal of unusable structures, materials, construction waste and debris to specially equipped and designated places.

Dismantling and destruction of the building, depending on the conditions of reconstruction, can be complete and partial. Complete dismantling and destruction of the building is carried out during its demolition or significant reconstruction; partial - when changing the space-planning solution of the building, replacing individual structures, elements, as well as their repair.

The destruction of the building is carried out when it is inappropriate to use its constituent structures and products (old buildings) in the future, as well as if it is necessary to carry out demolition of the building or a significant part of it in the shortest possible time and with minimal labor costs.

The dismantling of the building is carried out for reuse structures and materials, as well as when it is impossible or ineffective to use destruction methods (old buildings). In the process of dismantling the building, work is carried out on dismantling, dismantling, partial and complete destruction of structures.

Dismantling of building structures - mechanized process for their removal in an undamaged form using lifting, rigging and Vehicle. In the process of dismantling structures, partial destruction of only individual fasteners and tie elements is used.

Under the dismantling of building structures is understood the process of its partial destruction for the purpose of dividing into separate elements with their subsequent removal.

Dismantling and dismantling of structures can be carried out in enlarged blocks and element by element.

Dismantling and dismantling in enlarged blocks has a number of advantages compared to element-by-element disassembly, in particular, the terms of work are reduced, their labor intensity is reduced by 1.5–2 times, the safety of work and the culture of production are increased.

AT special occasions dismantling of buildings and structures (administrative and amenity one-story buildings, low chimneys, power transmission line supports, etc.) can be produced as a whole without disassembly. At the same time, the dismantled part of the building or structure is released from its connections with the foundations and, as a whole, moves to another place or is transported outside the site being developed with the help of special vehicles.

The dismantling of building structures is carried out, as a rule, in the process of their replacement. At the same time, the dismantling of replaced structures and the installation of new structures are carried out in most cases by the same assembly machines, which makes it possible to consider the mechanization of dismantling and installation work a single complex process (see Chapter 9).

Element-by-element disassembly of building structures is carried out in order to maximize the yield of materials for their reuse.

Manually dismantling of acutely scarce finishing decorative, wooden and small metal structures. This method of dismantling brick and rubble concrete structures is used only for a very small amount of work and in cases where other methods cannot be used for any reason.

Prior to the start of dismantling, it is necessary to mark the places of separation of structures in accordance with the element-by-element scheme of their removal, install temporary fastenings of structures, without which unforeseen collapses can occur, as well as arrange temporary fences, decks and protective peaks.

Initially, technological and special equipment, instrumentation, electrical and low-voltage networks are dismantled (dismantled).

Disassembly is carried out, as a rule, from top to bottom in the following order:

technological structures: pipelines, utilities, masts, supports, shelves for equipment, lifts;

enclosing structures: horizontal (floors, roofing, ceilings); vertical (gates, doors, windows, stained-glass windows and non-bearing external and internal walls);

special structures: stairs, viewing platforms, ramps, shafts, galleries, railroad tracks;

bearing structures: horizontal (lanterns, floor and floor slabs, trusses, beams, crossbars, crane beams); vertical (walls, columns, racks);

tunnels, basements, foundations.

One-story buildings are dismantled in a separate way, including element-by-element dismantling of structures throughout the building, and in a complex way, in which the building is disassembled section by section. Sometimes a combination of these methods is used. Multi-storey buildings should be dismantled floor by section in separate sections or along the entire length of the building.

Dismantling the electrical network should begin with the removal of ceiling lamps, cartridges, switches, sockets, shields, etc. Then proceed to dismantle the wiring. Removed wires should be smoothed and wound into coils.

When dismantling worn engineering networks and equipment, they should be dissected using electric or gas cutting. unsuitable cast iron pipelines they are disassembled without caulking the sockets, the places of their connection can be broken with a hammer. All removed items engineering equipment(sinks, washbasins, bathtubs, toilet bowls, flush cisterns, heating appliances systems central heating, taps, etc.) should be sorted with a selection of those suitable for further use.

The roof is dismantled in two stages: first dismantled roofing, and then load-bearing elements roofs.

Design roll roofing, containing a heater, is removed simultaneously with a heater. Work should be carried out along the span, starting from the highest elevation of the roof. As a tool, light crowbars, bayonet or shovel shovels can be used. The disassembled material should be lowered in buckets or special boxes by cranes or through closed gutters (garbage chutes).

Roofing from roll materials without insulation, it is recommended to open from a solid base with a steel spatula, and cut off its section along the slope with scissors.

Roofs made of piece small materials are parsed element by element in the reverse order of their structure. With careful disassembly, you can save up to 80-85% of the material.

When disassembling a roof from corrugated asbestos-cement sheets, you should first cut the screws and nails, then remove the roof elements from the ridge, ordinary sheets, trays and corners. Coatings of asbestos-cement roofing elements made of roofing steel(pipes, overhangs, etc.), are removed after the removal of asbestos-cement parts.

Disassembly steel roof begin by stripping the coating around pipes and protruding parts. An ordinary roofing steel coating is disassembled in two ways:

Clamps are separated from the crate and, using screwdrivers or a crowbar, one of the standing folds is opened into a picture along the entire slope of the roof. Then, having disconnected the lying flange fastening the picture with the sheets of the gutter, the picture is lifted with crowbars and turned over to the next row, after which the individual pictures are separated.

Roofing scissors cut off the standing folds, then open the lying folds and roll the paintings into rolls.

Disassembly of the remaining elements of the roofing

(parapet gratings, trays, funnels, grooves and overhangs) are produced after dismantling the crate from the level of the attic floor.

Wooden crates are dismantled element by element using a special crowbar and a nail puller.

Wooden building construction can be dismantled entirely with; lifting mechanisms. At the same time, the structure is first slinged and, supporting it with a crane, the support fasteners are removed.

Dismantling (dismantling) of wooden glued beams is recommended to be carried out entirely with the help of cranes. If it is impossible to use cranes for dismantling glued wooden beams they can be dismantled using winches if there are structures above the beam that allow the winch block to be suspended from them.

When reconstructing multi-storey buildings, it is often necessary to disassemble interfloor ceilings, which are usually monolithic reinforced concrete (flat or ribbed), stone in the form of brick vaults or made on metal beams with wooden or concrete filling. Less common are prefabricated reinforced concrete floors.

The overlap before the start of disassembly must be examined, for which the floor is opened in some places. The results of the survey and measurements (in the absence of drawings of building structures) are the initial data for the development of WEP(p).

Of great interest is the technology and equipment developed by Hungarian specialists with a hydraulic drive for the installation of monolithic floors of multi-storey buildings with their sequential dismantling. This method is called "bottom-up" and is similar to the method of lifting floors. Its peculiarity lies in the fact that the first monolithic reinforced concrete floor, made on the first floor according to the configuration of the room, is made with a hole in the center for connecting the bottom of the garbage chute. This overlap is raised to the existing overlap of the second floor, which is destroyed and partially removed through the garbage chute into containers. Then the floors of subsequent floors are successively removed. The first monolithic ceiling special technology fix and monolithic in place of the old ceiling of the last floor. After that, the remaining monolithic floors of the floors are alternately manufactured and installed from the upper (penultimate) to the lower floor.

Floor lifting equipment is mounted in the attic with support and transfer of forces to the supporting structures of buildings.

brick st enes of old buildings stacked on lime mortar, are usually dismantled easily in the form of separate blocks, so the bulk of the bricks can be reused. However, when disassembling brickwork a significant amount of dust is generated.

Dismantling brickwork on cement and cement-lime mortars requires much more effort. In this case, the brick and mortar are broken in the form of large blocks and it is almost impossible to separate the brick from the mortar. In these cases, when disassembling, manual machines (jackhammers, etc.) should be used.

Brick walls are usually dismantled from scaffolding. Inventory tubular scaffolding designed by Prom-stroyproekt is often used. Scaffolding is attached to the wall to be dismantled in accordance with standard project for the use of these forests. To do this, screw the anchors into wooden corks, clogged, in nests previously punched with a jumper, or use inventory plug anchors. The order of installation and the sequence of their disassembly are set out in the PPR (p).

Brick walls in the cramped conditions of the existing workshop are dismantled in rows, usually by hand using crowbars, light sledgehammers, wedges and picks, or with the help of manual machines(jackhammers). All other methods in most cases are unacceptable. Depending on the strength of the masonry, the thickness of the wall and the tool used, disassembly is carried out to a height of two or three rows.

Bricks and construction debris should be placed in wheelbarrows or metal boxes, which are installed on scaffolding and removed with a crane. Materials from demolition can also be fed to the floor or ceiling mark using elevator hoists or wooden troughs. closed type into the receiving bunker. Prefabricated mobile sectional and telescopic garbage chutes made of aluminum, steel and plastic, manufactured by the Hungarian company Becker, complete with wheelbarrows and bins for receiving garbage or with unloading into vehicles, are very convenient for these purposes. The length of the metal sections of the garbage chute is 1.5–3 m, the diameter is 380–300 mm, the diameter of the plastic garbage chute is 760 mm, the length of the sections is 1.2 m.

Disassembly brick walls if possible, it should be carried out in enlarged blocks in order to reuse them. For slinging blocks use special lifting devices(Fig. 6.1). Blocks of masonry are separated using jackhammers or hand-held disc milling machines, while supporting them with hoisting machines.

As the wall is being dismantled, design fasteners and connections are removed, which ensure its stability during operation. Therefore, in order to prevent the collapse of any section of the dismantled wall, it is necessary to additionally strengthen it for the period of disassembly using the methods developed in the PPR (p). One such method is to fasten the wall to the columns of the building using wire twists. To do this, two holes are punched in the wall against the corner faces of the column, where soft steel wire is inserted, which is then wrapped around the column. With outer side walls for wire twisting lead round wooden racks with a diameter of 16 cm, which are fastened with spacers to ensure stability. If the columns of the building are reinforced concrete, then plank linings are installed under the wire.

For the period of work, the hazardous area is fenced off and access to unauthorized persons is closed. If disassembly work is carried out in darkened parts of the building or those that do not have daylight at all, then temporary lighting of workplaces with an illumination rate of at least 25 lux should be arranged.

It is not allowed to dismantle in two tiers or more in one vertical, regardless of the number of overlaps.

Brick walls of multistory industrial buildings disassembled in the same way after disassembling all internal structures on the floor. Work on the dismantling of brick walls is usually carried out in order with the help of jackhammers from top to bottom from inventory scaffolding. At the same time, the peaks of the hammers are thrust into the seams of the masonry, which is stratified. It is necessary to ensure that the interfloor ceilings are not overloaded with disassembled materials, as well as machines and mechanisms. Freight elevators can be used to move materials down to the first floor, as well as covered wooden chutes. From the dismantling sites, the material is fed to elevators and chutes in wheelbarrows, which move along specially arranged passages. From the gutters, which it is advisable to equip with slide gates, construction waste can be immediately unloaded into dump trucks.

When disassembling a clean floor from grooved boards, first remove the plinth or fillets, remove one of the frieze or edge boards, and then sequentially disassemble the floor boards. To save the boards, they are slightly torn off from the lag, then they are pushed down with a hammer blow, after which the nails are pulled out.

When dismantling a clean floor for the duration of work, 2-3 boards should be left intact every 1.5-2 m. They serve for the passage of workers and transportation of materials and remain until the flooring, backfilling and rolls are completely removed. Remove them immediately before lowering the beams.

Panel parquet should be removed entirely with shields. When disassembling the parquet is cut circular saw in places where the shields adjoin each other and then lift them with crowbars.

Dismantling of floor coverings, roads, sites should be carried out taking into account the following requirements:

when disassembling inside workshops and during outdoor work near buildings, structures should not be used percussion methods, causing the propagation of vibrations in the ground (excavators with ball and wedge hammers);

dismantling of coatings should be carried out in the form of strips correct form with smooth edges and with dimensions that allow laying at the end of the work a temporary or permanent coating of a whole number reinforced concrete slabs specially prepared for this purpose. To do this, the disassembled coating must be cut before its removal using bar machines ( asphalt concrete pavement), disc milling machines with abrasive (concrete) or diamond wheels (reinforced concrete).

When dismantling the coating, disc milling machines DFM-2 and DFM-64, hydraulic hammers, less often a bucket are usually used as cutting equipment. active action, and as loading equipment - loaders and excavators.

The square pieces of the coating cut by the disk-cutting machine can be loaded into vehicles by a loader equipped with a fork (Fig. 6.2). Separate hard-to-grip oversized pieces are loaded after appropriate slinging.

If it is impossible to cut slots near existing structures(strip 2 m wide) the floor covering is destroyed by an excavator equipped with a hydraulic hammer. The introduction of the hydraulic hammer tool is carried out at a distance of 0.5-0.7 m from the structure, and the piece should be torn off towards the structure. With a small area of ​​coverage (100-150 m2), its destruction is carried out with a hydraulic hammer without the use of a disc milling machine.

Stairs in high-rise buildings should be disassembled from top to bottom in tiers in accordance with the disassembly of the floors. The dismantling of stairs begins with the railing, then the steps, platforms and marches are dismantled.

The disassembly of the railing should be done in sections. The fastening of the individual links of the railing is cut by oxy-fuel cutting.

stone and reinforced concrete steps removed from top to bottom, separating them with a crowbar. If the steps are embedded in the wall along the march, then a furrow is punched over them to release the embedded ends. The removed steps are lowered along the guides to the underlying landing, where they are packaged, slinged and removed with a crane. The stairs are dismantled only from the scaffolds, which are removed after the removal of all structures and machines.

The efficiency of the dismantling process of buildings and individual structures is largely determined by how quickly and conveniently the supporting scaffolds, scaffolds, cradles are mounted, as well as by the size of the site (in plan) on which workers and mechanisms are located.

Reversing the wonderful phrase beyond the years of the quick-witted Uncle Fyodor from the cartoon "Prostokvashino" we can say: "In order to build something useful, you must first destroy something unnecessary...".

If holding earthworks precedes the construction process itself, then the destruction of buildings, old buildings and communications precedes the excavation itself. It sounds strange, but it turns out that the process of destruction is the beginning of the process of construction.

It should be understood that the concepts of dismantling a building and its destruction are not synonymous and denote completely different processes.

buildings I involves gentle dismantling while preserving the building materials and structures from which it is built, for example, bricks, concrete beams, boards, window frames, doors, ovens, etc. Demolition is usually carried out on old buildings that are cultural value or simply buildings that can be dismantled for building materials. In this case, carefully preserved materials can be reused, sold at a profit for the owner, and Environment suffer minimal damage.

An example of how it is possible to dismantle a building while preserving building materials.

Often such a process is called "green construction", because it does not involve the disposal of construction waste, which causes harm to the environment. Dismantling is usually carried out manually using special tools- wire saws, perforators, cutters. last word in manual dismantling technologies are diamond tools that allow specialists to work with metal and reinforced concrete.

Destruction and demolition of buildings, buildings, structures is a completely ruthless process that involves the complete destruction of everything old that you want to get rid of.

Demolition of small buildings, such as, for example, 1-3-story residential buildings, barns and garages, is a fairly simple process. Such buildings can be destroyed mechanically with a small amount of construction equipment, such as aerial platform, automobile crane, excavator and bulldozer.

An example of the destruction of a building with a single excavator.

To demolish a building bigger size and the number of storeys will have to involve specialists of a "controlled explosion"

and get sick large equipment for destruction, which is usually a large crane or excavator with a heavy metal ball suspended from it,

huge hydraulic hammers, construction scissors for cutting reinforced concrete,

bulldozers and excavators.

In most cases maximum height demolition of high-rise structures (civil and industrial use) does not exceed 20-25 meters. However, with the appearance on the construction equipment market of special excavators-destroyers (the operating weight of which reaches 150 tons), equipped with hydraulic shears, it became possible to carry out demolition and dismantling of buildings at a height of up to 60 meters.

It is very effective to use excavators in the destruction and demolition of buildings. Equipped with a detachable hydraulic hammer, they can carry out demolition work reinforced concrete structures, and after the destruction of the object or its load-bearing parts, load the scrap and bulk materials onto dump trucks.

Prior to the commencement of work on the destruction of the building, it is necessary to issue a set permits, and after the completion of the process, the remaining construction waste should be taken out by dump trucks and disposed of. At the same time, concrete is often processed using a crusher and a hydraulic hammer, obtaining secondary crushed stone, which can later be sold.

As you can see, carrying out all these works presupposes the presence of not only the necessary labor resources, but also knowledge of the legislation, as well as the presence of a range of various construction equipment.

The Avtopark 7 company has all necessary tools, resources and equipment and will be able to provide you with services for the complete or partial dismantling, destruction and demolition of any type of buildings, from small private houses to large buildings. Our specialists have all necessary knowledge, skills and experience in order to guarantee the safety, quality and speed of work. We have all necessary equipment so that on time and with minimal cost carry out the tasks assigned to us.

Contact us and we:

We will destroy any structures using a hydraulic hammer mounted on the boom of a caterpillar excavator;

We will dismantle reinforced concrete structures using hydraulic shears;

We will demolish the building using the cable method:

We recycle, remove and dispose of any waste.

You can get advice and find out the cost of services for the destruction or dismantling of a building for each specific case.

We guarantee that your order will be completed as soon as possible.