CN109025365B

CN109025365B - Dismantling method for high-rise building

Info

Publication number: CN109025365B
Application number: CN201810853849.1A
Authority: CN
Inventors: 李树平; 秦雄燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-30
Filing date: 2018-07-30
Publication date: 2021-02-23
Anticipated expiration: 2038-07-30
Also published as: CN109025365A

Abstract

The invention provides a demolition system of a high-rise building, which comprises the high-rise building to be demolished, a bidirectional winch, a transportation bearing device and a transportation channel arranged in the high-rise building to be demolished, wherein the transportation bearing device conveys a mother machine to the Nth floor of the high-rise building to be demolished through the transportation channel, the transportation bearing device comprises a bottom plate support frame, an crawling column and a lifting mechanism, and the lifting mechanism supports the bottom plate support frame to bear the mother machine and ascends or descends under the action of the bidirectional winch. The dismantling system for the high-rise building can transport the master machine and the slave machine very quickly and safely, is simple in design, realizes the work division and cooperation of the master machine and the slave machine, orderly dismantles the corresponding parts, is safe and reliable, and saves time and labor. The method for quickly dismantling the high-rise building by using the system is used for dismantling the high-rise building from the top layer downwards layer by layer, is safe to operate, high in speed and high in efficiency, and reduces adverse effects of the building on urban images in the dismantling process.

Description

Dismantling method for high-rise building

Technical Field

The invention relates to the technical field of high-rise building demolition, in particular to a demolition system and a demolition method for a high-rise building.

Background

With the rapid development of socio-economy, large buildings are also made, and the high buildings which are pulled out of the ground are aged, and the current dismantling method for the aged and worn high-rise buildings comprises the following steps:

(1) the method is relatively safe, but the removal period is very long, the cost and the energy consumption are too large, and the cost is high;

(2) the secondary supporting points of the whole building are firstly broken and removed by an excavator, then the main supporting points are broken, or the building is pulled after being half-broken, so that the whole building collapses. Because the method is very unsafe, great potential safety hazard is caused to the safety of operators, excavators and other mechanical equipment;

(3) there is also a high-tech means, namely fixed-point blasting, which is the most rapid and efficient means at present, and although the method is fast and direct, the method has disadvantages. To the knowledge of the experimenter, before carrying out the blasting, various procedures are firstly examined and approved, then the whole building is surveyed, repeated reasoning and calculation are carried out to carry out mechanical analysis on each department, then the obstructed part is firstly dismantled, then holes are drilled, explosive is installed, then the nearby residents move to the safe distance, and finally the blasting is carried out. The blasting also has a safe distance, so that firstly it will not have an excessive influence on other surrounding buildings, especially residents, or even bring a greater risk. Secondly, whether blasting is done or not can be judged accurately and accurately, so as to achieve the goal of walking without loss? There are also some cases, such as unsuccessful blasting, which makes the whole building unable to stand, unable to fall down, and difficult to take. Furthermore, before blasting is carried out, a large part of the wall which is not beneficial to blasting collapse is firstly demolished, the lower layer can also be used with an excavator, the upper layer part needs to be demolished manually, the process is slow, and the economic cost is large. Is it guaranteed that some large buildings, other buildings around the large buildings have high density and even some dangerous public facilities, such as high-voltage transformers, power grids, streets and shopping malls, will not destroy or submerge the facilities after collapse? Therefore, unnecessary loss is caused, and inconvenience is brought to surrounding residents, so that the method is not suitable for fixed-point blasting of every building.

Therefore, a new technical scheme is urgently needed for dismantling the high-rise building to achieve the purposes of high efficiency and safety.

Disclosure of Invention

In order to solve the above problems, the present invention provides a high-rise building demolition system and a method thereof that are both efficient and safe.

The invention is realized by the following technical scheme:

the invention provides a demolition system of a high-rise building, which comprises the high-rise building to be demolished, a bidirectional winch, a transportation bearing device and a transportation channel arranged in the high-rise building to be demolished, wherein the transportation bearing device conveys a mother machine to the Nth floor of the high-rise building to be demolished through the transportation channel, the transportation bearing device comprises a bottom plate support frame, an crawling column and a lifting mechanism, and the lifting mechanism supports the bottom plate support frame to bear the mother machine and ascends or descends under the action of the bidirectional winch;

the Nth floor is the topmost floor of the high-rise building to be dismantled;

wherein the parent machine comprises a medium-sized crushing excavator.

Furthermore, the bottom plate support frame comprises a square sleeve, an oil pressure square steel support arm which is sleeved on the end part of the square sleeve and can axially extend relative to the square sleeve, an oil pressure support leg connected with the oil pressure square steel support arm, and a connecting pipe for connecting two adjacent square sleeves; and a plurality of racks which are arranged at equal intervals are arranged on the inner side of the crawling column.

Further, elevating system includes retaining member, bottom plate, extensible member, the retaining member can with the bottom plate is fixed on climbing the post, the extensible member clamp is established the bottom plate with between the bottom plate support frame, and can adjust the bottom plate with distance between the bottom plate support frame.

Further, the transportation bearing device conveys a submachine, a medium-sized forklift, a crane, a steel bar face cutting machine, a ring press machine of net-shaped steel bars face and a beam body upright post cutting machine to the N-1 th floor of the high-rise building to be dismantled through the transportation channel, wherein the submachine comprises a small-sized excavating crusher and a small-sized forklift.

The invention also provides a high-rise building dismantling method, which comprises the following steps:

(1) conveying the main machine to the board surface of the Nth floor of the high-rise building to be dismantled through the conveying channel by utilizing the conveying bearing device and a bidirectional winch, wherein the Nth floor is the topmost floor of the high-rise building to be dismantled; wherein the parent machine comprises a medium-sized crushing excavator;

(2) conveying a submachine, a medium-sized forklift, a crane, a plate steel bar cutting machine and a beam body upright post cutting machine to the plate surface of the (N-1) th floor of the high-rise building to be dismantled through the conveying channel by utilizing a conveying and carrying device matched with a bidirectional winch, wherein the submachine comprises a small-sized excavating crusher and a small-sized forklift;

(3) starting a small-sized excavating crusher to crush the wall body and the plate surface inside the (N-1) th floor of the high-rise building;

(4) starting a small forklift to convey the waste crushed by the small excavating crusher to a transportation way;

(5) starting a medium-sized crushing excavator to crush a plate surface with a certain area on the Nth layer of the high-rise building in a fan shape, so that concrete on the plate surface falls off from the reinforcing steel bars, and finally forming a quincunx plate gluten;

(6) starting a plate surface steel bar cutting machine to cut off the steel bars connected with the quincunx plate surface ribs and other unbroken plate surfaces, so that the quincunx plate surface ribs fall on the plate surface of the (N-1) th layer of the high-rise building, and circulating the high-rise building to break other plate surfaces of the Nth layer of the high-rise building;

(7) conveying the ring pressing machine of the mesh-shaped plate-surface steel bars to the plate surface of the (N-1) th layer of the high-rise building to be dismantled through the conveying channel by utilizing a conveying and bearing device matched with a bidirectional winch;

(8) starting a ring press of the net-shaped plate surface reinforcing steel bars to ring-press the quincunx plate surface reinforcing steel bars into a group of waste materials, and transporting small waste materials such as concrete and the like and the group of waste materials through a transportation channel by a medium-sized forklift;

(9) conveying the medium-sized crushing excavator to the board surface of the (N-1) th floor of the high-rise building to be dismantled through the transportation channel by utilizing the transportation carrying device and the bidirectional winch;

(10) starting a medium-sized crushing excavator to crush 2/3 on the upper part of the outer wall and remove the crushed upper part, and leaving 1/3 of the outer wall;

(11) starting a medium-sized forklift to transport the waste materials of the outer wall body away through a transportation channel;

(12) starting the beam body and upright post cutting machine to cut the column body along the column body at 360 degrees without cutting, and hooking the column body and the beam body connected with the column body by using a medium-sized crushing excavator;

(13) starting the beam body upright post cutting machine to cut the beam body along the beam body by 360 degrees without cutting, and then hooking by using a medium-sized crushing excavator;

(14) starting a medium-sized forklift to transport the cut waste materials of the beam body and the upright post away through a transportation channel;

(15) starting a medium-sized crushing excavator to crush and dismantle the residual 1/3 of the outer wall body, and starting a medium-sized forklift to transport the waste of the outer wall body away through a transportation way; the crushing and dismantling of the Nth floor of the high-rise building can be completed;

(16) and D, dismantling layer by layer according to the action steps until the whole high-rise building is dismantled.

The invention has the beneficial effects that:

the dismantling system for the high-rise building can transport the master machine and the slave machine very quickly and safely, is simple in design, realizes the work division and cooperation of the master machine and the slave machine, orderly dismantles the corresponding parts, is safe and reliable, and saves time and labor. The method for quickly dismantling the high-rise building by using the system is used for dismantling the high-rise building from the top layer downwards layer by layer, is safe to operate, high in speed and high in efficiency, and reduces adverse effects of the building on urban images in the dismantling process.

Drawings

FIG. 1 is a schematic view of a demolition system for a high-rise building of the present invention;

fig. 2A is a schematic structural view of a floor support frame of the demolition system of a high-rise building of the present invention;

fig. 2B is a schematic structural view of a lifting mechanism of the demolition system of a high-rise building of the present invention;

FIG. 2C is a schematic view of the construction of the transport carrier of the demolition system for high-rise buildings of the present invention;

fig. 3 is a schematic structural view of a two-way winding machine of the demolition system of the high-rise building of the present invention;

FIG. 4 is a schematic structural view of a rebar shearing machine of the demolition system of a high-rise building of the present invention;

fig. 5 is a schematic structural view of a loop press for mesh-type surface reinforcing bars of a demolition system of a high-rise building according to the present invention;

FIG. 6 is a schematic structural view of a cutting part of the beam body column cutting-off machine of the demolition system for high-rise buildings according to the present invention;

FIG. 7 is a schematic structural view of a solid rotating bearing assembly part of the beam column cutter of the demolition system for high-rise buildings according to the present invention;

FIG. 8 is a schematic structural view of an intermediate joint standard part of the beam body column cutting machine of the demolition system for high-rise buildings according to the present invention;

figure 9 is a schematic of the beam body cutting line of the demolition system of a high-rise building of the present invention.

Detailed Description

In order to more clearly and completely explain the technical scheme of the invention, the invention is further explained with reference to the attached drawings.

Referring to fig. 1, fig. 2A, fig. 2B and fig. 2C, the present invention provides a demolition system for a high-rise building, including a high-rise building 1 to be demolished, a bidirectional winch 2, a transportation carrier 3, and a transportation channel 4 disposed inside the high-rise building 1 to be demolished, wherein the transportation carrier 3 transports a parent machine to the nth floor of the high-rise building 1 to be demolished through the transportation channel 4, the transportation carrier 3 includes a bottom plate support frame 30, a crawling column 31 and a lifting mechanism 32, and the lifting mechanism 32 supports the bottom plate support frame 30 to carry the parent machine to ascend or descend under the action of the bidirectional winch 2 on the crawling column 31;

wherein the Nth floor is the topmost floor of the high-rise building 1 to be dismantled;

wherein the parent machine comprises a medium-sized crushing excavator.

In the present embodiment, the transportation path 4 is a transportation path for crushing the board surface from the bottom to the top in the middle or slightly off the middle of the high-rise building by using three air compressor crushing guns.

In the present embodiment, in consideration of the limited load on the floor surface of the high-rise building due to the old-broken condition of the high-rise building, the crushing excavator has the dead weight, and therefore, for the personal safety of the operator, the medium-sized crushing excavator or the medium-sized forklift is selected to perform the dismantling work on the floor surface of the high-rise building.

Further, the bottom plate support frame 30 includes a square sleeve 300, an oil pressure square steel support arm 301 which is sleeved on the end of the square sleeve 300 and can axially extend and retract relative to the square sleeve 300, an oil pressure support leg 302 connected with the oil pressure square steel support arm 301, and a connecting pipe 303 connecting two adjacent square sleeves 300; the climbing column 31 is provided with a plurality of racks 72 arranged at equal intervals along the inner side.

In the present embodiment, the cross section of the square sleeve 300 is rectangular, and the hydraulic square steel arm 301 can be extended and retracted in both directions in the square sleeve 300; a plurality of oil pressure supporting feet 302 are arranged for adjusting the level of the bottom plate supporting frame 30; the connecting pipe 303 is connected with the square sleeve 300 to form a rectangular frame; the bottom plate support frame 30 bears the mother machine, the submachine and other removal equipment to move up and down on the crawling column 31, so that the transportation and the transmission of the mother machine, the submachine and other removal equipment are realized.

Further, elevating system 32 includes retaining member 320, bottom plate 321, extensible member 322, retaining member 320 can with bottom plate 321 is fixed on crawling post 31, extensible member 322 presss from both sides and establishes bottom plate 321 with between the bottom plate support frame 30, and can adjust bottom plate 321 with the distance between the bottom plate support frame 30.

In this embodiment, the locking member 320 is used to maintain the position of the bottom plate supporting frame 30 on the crawling column 31 and prevent the bottom plate supporting frame from automatically sliding downwards under the action of gravity, and the telescopic member 322 is a lifting hydraulic jack; there is no auxiliary pull liner in the middle of the bottom plate support frame 30, so that the hoisting steel rope of the hoist and the hoisted objects can pass through conveniently.

In the embodiment, the principle of transporting the bearing device 3 is carried out by using the self-lifting and self-descending principle of a tower crane, and the difference is that each floor surface of the removed building is a ground plane base; the operation flow is as follows:

the first step is as follows: an air compressor is used to open a bottom-to-top passageway in the middle or slightly off-center of the removed building from the floor to the top, which can be replaced by an elevator passageway if the elevator car is large enough in size.

The second step is that: the transport carriage 3 is installed and checked for clarity and levelling.

The third step: the locking members 320 in four directions on the crawling column 31 are pressed tightly.

The fourth step: starting the lifting oil jack to the maximum stroke.

The fifth step: the base plate support frame 30 is used to support a mother machine or the like as a demolition machine.

And a sixth step: the locking member 320 in four directions of the climbing column 31 is released.

The seventh step: the lifting oil jack is retracted.

This is repeated for the third, fourth, fifth, sixth, and seventh steps so that the floor support 30 reaches the highest landing level at which it is properly stopped.

Eighth step: the telescopic arm of the bottom plate supporting frame 30 is extended, and four oil pressure supporting feet 302 of the bottom plate supporting frame 30 are adjusted, so that the whole bottom plate supporting frame 30 is horizontal, and four crawling columns 31 are perpendicular to the horizontal plane in a direction changing manner.

The ninth step: the oil pressure support feet 302 on the four feet of the bottom plate support frame 30 are retracted, and then the telescopic arms are retracted.

The tenth step: the retractable member 322 is retracted to the shortest distance to lock the four-way locking member 320 on the bottom board support frame 30.

The eleventh step: and (4) loosening the locking piece 320 around the auxiliary crawling column 31, repeating the tenth step and the eleventh step, retracting the bottom plate supporting frame 30 to a proper floor level, and unfolding the telescopic arm to adjust the level.

And repeating the steps, finally transporting one master machine to the top of the high-rise building, then lifting the slave machine to the next layer of the top by using the winch, wherein the slave machine does not need to be transported to the top of the high-rise building, and conversely transporting the master machine downwards layer by layer after detaching one layer.

In this embodiment, the lifting mechanism 32 has a plurality of lifting mechanisms 32, the upper plane structure and the lower plane structure of the lifting mechanism 32 are the same, each floor plane is a standard ground plane, the lifting mechanism 32 can lift 9-12 meters, the upper plane of the lifting mechanism 32 rises to the upper end of the crawling column and the floor surface as a new ground plane, the telescopic arm of the lower plane is collected, the lower part is lifted up to the new ground plane by using the hydraulic jack, the lower plane of the crawling frame is extended, and the next round of lifting is repeated until the top layer of hundreds of meters is reached, and vice versa, the top layer of hundreds of meters is reached to the ground. The telescopic directions of the upper and lower planes of the lifting mechanism 32 mutually form 90 degrees by taking the central point of the cross section of the frame of the lifting mechanism 32 as an intersection point; when the jack ascends to the maximum distance, the height of the hydraulic jack of the upper plane supporting frame is 2.5 times that of the hydraulic jack of the lower plane, so that the surfaces of the same layer can stretch and retract without interfering with each other to support the whole crawling frame, and the crawling frame can also transport medium-sized machinery upwards or downwards.

The bidirectional winch 2 is arranged on a bearing platform of the transportation bearing device 3 and is responsible for transporting the small submachine and other components up and down.

In this embodiment, referring to fig. 3, the bidirectional winding machine 2 includes a winding machine upper frame 21, a motor 22, a coupler 23, a stirring disc bearing seat 24, a stirring disc 25, a hoisting cable 26, a movable pulley 27, a hoisting hook 28, and a cable head fixing buckle 29; the hoisting machine upper bracket 21 is fixedly connected by welding, the weight borne by the hoisting steel rope 26 is at least more than 15 tons, the steel rope head fixing buckle 29 can be an ox-horn pin, and the motor can rotate anticlockwise or clockwise, so that the hoisting hook 28 can move up and down.

Further, the transportation bearing device 3 conveys the submachine, the medium-sized forklift, the crane, the steel bar face cutting machine, the ring press of the net-shaped steel bar face and the beam body upright post cutting machine to the N-1 st floor of the high-rise building 1 to be dismantled through the transportation channel 4, wherein the submachine comprises a small-sized excavating crusher and a small-sized forklift.

The steel bar cutter with plate surface utilizes the principle of sewing machine presser foot and rotary wheel knife to attain the goal of quickly cutting, if according to the operation requirements, it can be substituted by gas cutting mode, but its cost is too high, and also can be substituted by wire cutter, etc. but delay construction process. It is most desirable to install it on a long arm small excavator because when the slab face reinforcing steel bar needs to be cut, the slab face concrete is broken by a sub machine (small crushing excavator), and it can only stop the operation on the plate face which is not broken at the back, and the cut slab face reinforcing steel bar or the net shape falls to the next slab face to wait for the slab face reinforcing steel bar ring press to clear up.

When the plate surface steel bar cutting machine is assembled, firstly, a flywheel knife transmission shaft is connected in a cross mode and extends upwards out of a machine body shell and a bearing to be assembled, the shell is fixedly penetrated through a shell transmission shaft bearing, then a sleeve and a second large ring bearing are assembled on the outer edge of the sleeve, and then the components are assembled into the machine body shell, and a fixed pressing sheet is arranged in the upper part; secondly, the driven gear and the cylinder sleeve which rotate in 360 degrees on the plane of the wheel cutter frame are pressed tightly by bolts, and the wheel cutter support is stressed on the wheel cutter and the shearing foot pressing plate to the maximum extent during cutting, so that the part which seems that the joint of the wheel cutter frame, the driven gear and the cylinder sleeve cannot bear the force is naturally stressed; the most important is that the transmission shaft of the flywheel knife rotates to rotate the plane of the flywheel knife rest for 360 degrees, and the machine body shells do not have any mutual interference; the supporting and connecting plate of the scissor-edge footplate can be lengthened according to the requirement.

Referring to fig. 4, the steel bar cutting machine for plate surface includes a machine shell 51, a through hole 52 connected to a wall of an excavator, a connecting buckle 53 connected to a bucket of the excavator, a wheel cutter rotation transmission shaft 54, a wheel cutter rotation transmission cross joint 55, a wheel cutter rotation transmission worm and bearing seat 56, a wheel cutter 57, a wheel cutter rotation driving turbine 58, a wheel cutter bracket 59, a scissor opening pressing plate 510, a scissor opening pressing plate supporting and connecting plate 511, a wheel cutter rotation sleeve 512, a wheel cutter rotation first bearing 513, a wheel cutter rotation second bearing 514, a wheel cutter frame plane 360 ° rotation transmission shaft 515, a wheel cutter frame plane 360 ° rotation transmission shaft bearing seat 516, a wheel cutter frame plane 360 ° rotation transmission gear 517, a wheel cutter frame plane 360 ° rotation driven gear 518, a wheel cutter shaft and its bearing 519, and a built-in positioning pressing plate 520.

The plate surface ribs with the net-shaped upper plate surface are cut off and fall onto the lower plate surface, and the plate surface ribs are pressed into a ball by a plate surface reinforcing ring pressing machine, so that the plate surface reinforcing ring can be moved away from the removed building, and is convenient to transport away from a construction site. The principle is simple, a thick plane frame is arranged on a chassis of the excavator, two hydraulic jack supporting legs of the crane are arranged at the front end of the frame, the two hydraulic jack supporting legs are pressed at the middle and rear end parts of the reticular plate gluten, the reticular plate surface reinforcing steel bars are extruded back and forth by a crushing end of the excavator after being extruded for several times with different directions, and the reticular plate surface reinforcing steel bars are extruded into a roll which is convenient to carry.

The cut-off net-shaped plate-surface steel bars also have the utilization value, and can naturally generate economic benefits, so that a second clearing and collecting mode is generated, the net-shaped steel bars can be pressed on the net-shaped steel bars by an excavator for multiple times of steering, undamaged binding wires are broken by twisting, and the binding wires are manually cleared and collected into bundles, so that the construction process can be influenced, and the situation can be determined only.

As for the arrangement of the ring press base on the ground disc of the excavator, the whole excavator does not have any influence on the work, only two oil valves and three-way fittings are added on the oil pressure pipe of the large arm, two more procedures are added on the operation, and no great difficulty exists.

In this embodiment, referring to fig. 5, the slab-face steel ring press includes an excavator bottom plate gear 61, an excavator rotating gear 62, an excavator crawler 63, an excavator arm assembly 64, and a crane hydraulic support foot assembly frame 65; the face reinforcement ring press cleans the double-layer face reinforcement 66 to be cleaned.

For anyone who is engaged in the breaking work, it is known that the steel bars in the concrete are the most broken obstacles, especially for the columns and the beams, but when the high-rise building is removed, the work load is the largest, and the columns and the beams are the most difficult. The beam body and the upright post are cut into a certain depth, and only large steel bars are cut, otherwise, the cutting machine is time-consuming and labor-consuming. To achieve this, we use the chain saw principle of forming the opposite faces and require a multi-directional fixed work after rotation, and the materials used by the chain saw can be selected from the hole cutter cutting materials used in the building. The upright columns and the beam bodies after being cut are conveniently and easily crushed again, the waste steel bars are well collected, but the cutting machine is necessary in the whole disassembly process and is a prior guarantee tool for safe and quick disassembly.

The beam body column cutting machine comprises 3 parts, namely a cutting part, a three-dimensional rotating shaft sleeve assembly part and an intermediate connecting standard part; referring to fig. 6, the cutting part of the beam-body column cutting machine includes a cutting rack running track plate 71, a cutting rack 72, a transmission gear 73 of the cutting rack, a high-speed dc motor 74, a gear shaft center point positioning bearing 75, a support plate 76, a double-end reverse-thread positive screw 77, a middle pin 78, a worm 79, a square nut 710, a square nut running groove 711, a pressure body bearing 712, a worm 713, a steering dc motor 714, a worm compression positioning nut 715, a water feeding pipe and a water outlet nozzle 716; the high-speed dc motor 74 has two symmetrical parts and runs in opposite directions.

Referring to fig. 7, the three-dimensional rotating shaft sleeve assembly of the beam column cutting machine includes a 90 ° rotating connection hole 81 between the shaft end and the horizontal plane, a main shaft 82, an outer edge end cover 83 of the upper bearing pressure bearing, a clutch pressing sheet 84 with clutch teeth, a pin slot and a pin 85 between the clutch pressing sheet with the clutch teeth and the main shaft, which can slide, an upper bearing 86, a support inner sleeve 87 on the main shaft for fixing the upper and lower bearings to movably support the inner edges of the upper and lower bearings, a support inner sleeve 88 for fixing the upper and lower bearings to movably support the outer edges of the upper and lower bearings, a step 89 for positioning the main shaft bearing, a lower bearing 810, a lower end cover 811, a lock nut and a release spring washer 812 for positioning the inner edges of the upper and lower bearings, an oil jack attachment plate 813, a 360 ° rotating assembly 814, a rotation-assisted steel ball; because the rotation angle is accurate and the times are not frequent, the operation is carried out manually; the smaller the rotational play after the clutch plate is engaged, the better.

Referring to fig. 8, the intermediate connection standard part of the beam column cutting machine includes a horizontal 90 ° rotation connection hole 91, a ram-corner connection hydraulic pull rod 92, a ram-corner connection hydraulic pull rod connection hole 93, a connection hole 94 connected to the excavator forearm, and a connection hole 95 connected to the end of the excavator hopper hydraulic jack.

The principle of cutting we adopt is the principle of chain saw cutting timber, and its mode is that two sides are bisecting simultaneously, can ensure the stability of whole frame when cutting like this, and the more important improves work efficiency. When cutting, the feeding amount is small, the moving speed of the two corresponding cutting racks 72 from outside to inside is slow, so that a worm and worm gear transmission system is adopted, and when the two corresponding cutting racks 72 need to be withdrawn when cutting is achieved, the moving speed of the two corresponding cutting racks from inside to outside needs to be fast, so that a direct-current variable-speed motor can be adopted.

The three-dimensional rotating shaft sleeve assembly can enable two cutting plates to rotate 360 degrees on a vertical plane when a beam body is cut off under the matching of an excavator hopper hydraulic jack, so that the aim of simultaneously cutting the beam body in front and at the back is achieved, and the simultaneous cutting up and down can be achieved by rotating 360 degrees on a horizontal plane.

When cutting the stand, because the height of cutting need not be fixed, under excavator hopper hydraulic ram and big arm hydraulic ram cooperation simultaneously, can carry out the cutting of stand left and right sides, in addition the cooperation of the rotatory hydraulic ram in plane 90, can accomplish the simultaneous cutting of stand, roof beam body, so to stand, roof beam body omnidirectional cutting purpose just has all been reached.

The main reason for cutting the concrete is that the steel bars are the firmest inside the columns and the beams, the objects to be cut are the steel bars, the steel bars are broken, and the concrete is good. If the whole upright post and the whole beam body are cut off, the problems of time consumption, tool consumption and energy consumption are caused, and unnecessary dangers are brought.

The cutting machine and the excavator can be connected into a whole through the medium connection standard piece.

Remarks explanation: the excavator does not need too much power, and only can complete walking and telescopic arm.

(1) conveying the mother machine to the board surface of the nth floor of the high-rise building 1 to be dismantled through the conveying channel 4 by utilizing the conveying and carrying device 3 in cooperation with the bidirectional winch 2, wherein the nth floor is the topmost floor of the high-rise building 1 to be dismantled; wherein the parent machine comprises a medium-sized crushing excavator;

(2) conveying a submachine, a medium-sized forklift, a crane, a plate steel bar cutting machine and a beam body upright post cutting machine to the plate surface of the (N-1) th floor of the high-rise building 1 to be dismantled through the conveying channel 4 by utilizing the conveying and carrying device 3 in cooperation with the bidirectional winch 2, wherein the submachine comprises a small-sized excavating crusher and a small-sized forklift;

(4) starting a small forklift to convey the waste crushed by the small excavating crusher to a transportation channel 4;

(7) conveying the ring press machine of the mesh-shaped plate steel bars to the plate surface of the (N-1) th layer of the high-rise building 1 to be dismantled through the conveying channel 4 by utilizing the conveying and carrying device 3 in cooperation with the bidirectional winch 2;

(8) starting a ring press for the net-shaped plate surface reinforcing steel bars to ring-press the quincunx plate surface reinforcing steel bars into a group of waste materials, and transporting the small waste materials such as concrete and the group of waste materials away through a transportation channel 4 by a medium-sized forklift;

(9) the medium-sized crushing excavator is conveyed to the surface of the (N-1) th floor of the high-rise building 1 to be dismantled through the conveying channel 4 by utilizing the conveying and carrying device 3 in cooperation with the bidirectional winch 2;

(11) starting a medium-sized forklift to transport the waste materials of the outer wall body away through the transportation channel 4;

(14) starting the medium-sized forklift to transport the cut waste materials of the beam body and the upright post away through the transportation channel 4;

(15) starting a medium-sized crushing excavator to crush and dismantle the residual 1/3 of the outer wall body, and starting a medium-sized forklift to transport the waste of the outer wall body away through the transportation way 4; the crushing and dismantling of the Nth floor of the high-rise building can be completed;

In the present embodiment, each layer is divided into one section during the whole removal process, and most of the sub-machines are the previous tasks during each section, because the previous removal obstacles mostly cause the main machine not to be able to perform large-scale and efficient removal work, so it can be seen that the sub-machines are used to create a good working environment for the main machine.

The main task of the small forklift is to send the waste materials crushed firstly into a transportation channel, and when the medium and large forklift is convenient to work, the small forklift is shifted to the next section of removal task. It can be seen that each small forklift must be equipped with two small excavating crushers.

In the removal process, due to the existence of strong tensile force of the steel bars, huge resistance is brought to the crushing, and meanwhile, the construction progress is greatly delayed, so that the removal period is prolonged. Meanwhile, after long-term practice, the demolition method of the high-rise building of the invention utilizes the skills of the method:

1. for the removal of the wall body, the best method is to open the notch from the bottom to the top from the position close to the upright posts on the two sides of the wall body surface, then open a rectangular hole from the bottom, and finally push the wall body to be removed.

2. For the removal of the upright post, four vertical surfaces of the upright post of a common house are all large steel bars, stirrups are tied on the periphery of the upright post, but the circular section of each stirrup steel bar is small, the resistance to deformation of the stirrup steel bar is small, a larger gap is provided for the breakage of people, and the stirrup steel bar is easy to break; therefore, the concrete is easy to separate from the steel bars, the speed is high, and great convenience is provided for clearing and collecting.

3. For the removal of the beam body, as the beam body, the height is greatly different from that of the upright column, the height is far more than the width, the number of large steel bars on two vertical surfaces is not more, the two surfaces are more easily crushed during the removal than the upright column, and the front main column is more easily crushed by adding a crushing method; referring to fig. 9, when the beam is cut, the distance between the tangent lines of the upper surface of the beam is shorter than that of the lower surface of the beam, and the tangent lines of the two side surfaces form a splay shape, so that the beam is most easily separated when the beam is dropped and cannot be clamped by other parts, which is a real reason that the beam column cutting machine of the invention needs to rotate 360 degrees.

4. For the demolition and crushing of the plate surface, the local crushing is not needed to be performed urgently, and a certain area is selected, and for an excavator, the area is absolutely a sector-shaped ground. The concrete breaking device is in a quincunx shape, breaking is not needed, even after concrete falling steel bars are broken in the area, a hole is broken, the concrete is gradually broken from the periphery of the hole, the concrete is easy to break, the steel bars are easy to fall off, and the working efficiency can be improved.

During the removal process, there is a barrier behind the removal of the work-safe part, which must be ensured not to be damaged during the previous removal process. In addition, the vertical operation is not available, the operation positions of the N layer and the N-1 layer must be strictly adjusted to avoid the vertical operation, and the operation site of the ring press for the net-shaped plate surface reinforcing steel bars must be in the place where the beam body is built on the whole plate surface.

The most important safety barrier is the wall body of the outer edge of the building, only the upper part can be removed before the plate surface is not removed, and the lower part can also prevent objects from accidentally falling.

In the embodiment, the beam body and the upright post have two schemes in the crushing, the first scheme is that the beam body is crushed on the floor surface on site, the second scheme is that a relatively safe place is found around a removed building to form a restricted area, the upright post is directly dropped from the upper surface of the beam body after being cut and knocked down to form natural damage, and then the beam body is crushed by a large-scale excavating crusher below the upright post, and the medium-scale forklift can be matched with and carry waste materials below a transportation channel to accelerate the crushing and transportation efficiency.

Therefore, the dismantling step is made only by fully utilizing the skills, so that the purposes of high efficiency and safety are achieved. The method for quickly dismantling the high-rise building by using the system is used for dismantling the high-rise building from the top layer downwards layer by layer, is safe to operate, high in speed and high in efficiency, and reduces adverse effects of the building on urban images in the dismantling process.

Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.

Claims

1. A demolition method of a high-rise building is characterized by comprising the following steps:

(1) conveying the main machine to the board surface of the Nth floor of the high-rise building to be dismantled through a conveying channel by utilizing a conveying bearing device matched with a bidirectional winch, wherein the Nth floor is the topmost floor of the high-rise building to be dismantled; wherein the parent machine comprises a medium-sized crushing excavator;