CN110965803B - Underground diaphragm wall dismantling construction device and construction method thereof - Google Patents
Underground diaphragm wall dismantling construction device and construction method thereof Download PDFInfo
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- CN110965803B CN110965803B CN201911196865.9A CN201911196865A CN110965803B CN 110965803 B CN110965803 B CN 110965803B CN 201911196865 A CN201911196865 A CN 201911196865A CN 110965803 B CN110965803 B CN 110965803B
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- 238000010276 construction Methods 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 239000002023 wood Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
Abstract
The invention provides a construction device and a construction method for dismantling an underground diaphragm wall, wherein a socket scaffold is used as a frame body upright post to set up an operation platform, so that the operation platform is more convenient and quicker when the operation platform frame body is set up and dismantled, the operation platform frame body upright post is determined according to the height of a divided concrete cube, the height of a first layer upright post is lower than the height of the first layer of divided concrete cube, the heights of other layers of upright posts are always consistent with the height of the concrete cube, and therefore, when the concrete cube of other layers is dismantled, after the frame body of the previous layer is dismantled, the elevation of the operation platform is always lower than the bottom of the dismantled concrete cube, and the socket scaffold is convenient to dismantle and does not damage the structure of the bottom frame body; and channel steel is transversely placed under the vertical rod at the bottom of the frame body, so that the whole frame body can be conveniently moved when the whole frame body is moved. The technical scheme of the invention can ensure that the concrete structure is safe, convenient and quick in dismantling, transportation and construction, and does not influence and damage the finished building.
Description
Technical Field
The invention belongs to the technical field of underground structure demolition construction, and particularly relates to an underground continuous wall demolition construction device.
Background
With the continuous development of the economy of China, the development of urban underground space is rapid in recent years, and especially, subway construction becomes an effective measure for relieving traffic pressure in various large cities, and more underground supporting buildings of subways are provided. In the construction process, the underground supporting building and the subway construction cannot be carried out simultaneously according to actual conditions or under various conditions, the underground supporting building is communicated with the subway building before the underground supporting building is put into production, the detachable concrete structure reserved at the communicating supporting building channel during the construction of the subway building is dismantled, the normal operation of the subway is not influenced, the dismantling of the concrete structure is particularly critical on the premise that the completed building structure is not damaged, and particularly the dismantling of the underground continuous wall structure is realized. For such problems, it is common practice to cut a concrete structure into a plurality of small blocks by using a rope saw and then transport the concrete blocks out of a construction site, but during construction, for an underground diaphragm wall structure, even the cut concrete small blocks have a large weight, and the clearing work after the cutting of the concrete structure is completed is very difficult. Therefore, in order to eliminate the problems in the engineering construction, an underground diaphragm wall dismantling construction method is researched to ensure that a concrete structure is safe, convenient and quick in dismantling and transportation construction, and the finished building is not influenced and damaged.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides the following technical scheme.
The construction device for dismantling the underground continuous wall comprises an undetachable wall body, a detachable wall body, an operation platform and a slideway, and is characterized in that the detachable wall body is divided into a plurality of uniform concrete cubes according to actual needs, the operation platform is erected, channel steel is placed at the bottom of the operation platform along the wall body direction, a socket scaffold tube is placed as a frame body upright rod, the height of the socket scaffold tube is determined according to the height of the concrete cubes, the height of a first layer of scaffold tube is lower than 150mm of the height of the cubes, the heights of other layers of scaffold tubes are the same as the heights of the cubes, transverse and longitudinal scaffold tubes are erected, the step distance of the frame body is the same as the height of each layer of socket scaffold tube, a placement hole is formed in the detachable wall body according to four corners of the uniform concrete cubes, the placement hole is formed at the edge of the detachable wall body as a boundary, and other cross-shaped partition holes are formed as centers, the longitudinal horizontal rod of each frame body passes through the placing holes to be connected with the steel pipe at the other side of the wall body to form a wall connecting piece to ensure the stability of the frame body, the top end of the frame body is fully paved with a wood springboard after the frame body is erected, the wood springboard is tightly bound with the frame body by iron wires, a slide rail is placed on the frame body right in front of a concrete cube to be cut, the slide rail is placed in the middle according to the position of the cutting cube, the slide rail is placed and installed in sections along the length of an operation platform and extends to the ground of the operation platform, channel steel is arranged at two ends of the slide rail, steel bars are welded between the channel steel at two ends at equal intervals, steel pipes with the width smaller than the width of the slide rail are sleeved on the steel bars, the steel pipes can rotate on the steel bars under the action of external force, portal frames at two ends of the slide rail are installed at the plane edge of the operation platform, the two end upright posts of the portal frame are connected with the upright pipes of the operation platform body by socket type scaffold pipes, the common scaffold pipes are used as cross bars to be connected with upright buckles at the upright posts at the two ends, the height of the portal frame is larger than that of the concrete cube, pulleys are arranged at the middle section of the portal frame cross rod, two placement holes are formed in the middle of the divided concrete cube, the concrete cube is sequentially cut on four sides of the wall body through the placement holes by using a rope saw, the concrete cube is separated from the detachable wall body,
preferably, the plane width of the operation platform is 2 times of the width of the cube, the length of the operation platform is 2 times of the thickness of the wall body, and an inclined angle of 30 degrees is formed between the operation platform and the ground along the top end of the length direction of the platform and the ground in the ground direction.
Preferably, the width of the slide is greater than 200mm of the width of the concrete cube.
Preferably, the diameter of the rebar is 25mm.
Preferably, a cutting gap (15) is formed between the bottom surface of the concrete cube (1) and the wall body after the bottom surface is cut, a round steel is vertically placed in the cutting gap (15), and the diameter of the round steel (16) is 8mm.
Preferably, the slide is fixed on the scaffold tube of the operation platform through a U-shaped clamp.
In order to achieve the above purpose, the invention also provides a construction device and a construction method for dismantling the underground diaphragm wall, wherein the construction device comprises the following components: cutting left and right sides of the concrete cube, cutting the bottom surface of the concrete cube, forming a cutting gap with a wall body after the bottom surface of the concrete cube is cut, vertically placing round steel in the cutting gap, and then cutting the top surface of the concrete cube; b: sequentially penetrating through the two placing holes by using a hoisting rope, connecting the end part of the hoisting rope with a chain block by using a clamping ring, pulling the chain block to enable the concrete cube to have outward pulling force through the pulley, and conveying the concrete cube to the slideway; c: and removing the second concrete cube, removing the wall connecting piece, and moving the frame body to enable an operation platform to be placed in front of the concrete cube to be cut, fixing the wall connecting piece to enable the frame body to be stable, repeating the construction steps, and after the whole wall body is removed, clearing the cut concrete cube out of a construction site by using a tower crane.
Further, in the step B, when the concrete cube runs to the planar end of the operation platform, the hoisting rope and the chain-pouring direction are changed; when the concrete cube is transported to the inclined plane of the operation platform, the chain is used for transporting the concrete cube to the ground through the counterforce of the pulley acting on the movement direction of the concrete cube.
The invention has the advantages and positive effects that: due to the adoption of the technical scheme
1) The socket joint type scaffold tube is used as a frame body upright post to set up an operation platform, so that the operation platform is more convenient and quicker when the operation platform frame body is set up and disassembled, the operation platform frame body upright post is determined according to the divided concrete cube height, the first layer upright post height is lower than the first layer divided concrete cube height, the heights of other layers of upright posts are consistent with the concrete cube height all the time, and therefore when the other layers of concrete cubes are disassembled, after the upper layer of frame body is disassembled, the elevation of the operation platform is always lower than the bottom of the disassembled concrete cube, and the socket joint type scaffold tube is convenient to disassemble and does not damage the bottom frame body structure; the channel steel is transversely placed under the vertical rods at the bottom of the frame body, so that the function of protecting the storey structure under the frame body is achieved, the vertical rods of the frame body translate in the channel steel when the whole frame body is moved, the friction force between the frame body and a contact object is reduced to a great extent, and the movement of the whole frame body is facilitated.
2) The detachable shaping slideway is arranged on the operation platform, so that the slideway can effectively and safely move the cut concrete cube with large weight to the ground, the whole slideway can be split into multiple sections, and the slideway can be randomly combined along with the height and the shape of the operation platform when the concrete with different elevation is cut, thereby being convenient for construction.
3) According to actual conditions of a construction site, a large-volume concrete shear wall is divided into uniform cubes in the hoisting weight of hoisting machinery such as a tower crane and the like, round steel with the diameter of 8mm is vertically placed under the cut cubes in the process of cutting the concrete cubes, and when the concrete cubes are dragged, the friction resistance between the concrete cubes and the undetached wall is reduced through the sliding of the round steel; the method that the concrete cube is pulled by the chain block through the pulleys during the process that the cube moves to the ground through the slide way can enable the movement of the concrete cube to be in a controllable range, and potential safety hazards are reduced. And gradually removing each concrete cube, and after all the walls are removed, clearing the cut concrete cubes out of the construction site through a construction hole reserved in the top plate of the structure by using a tower crane.
Drawings
FIG. 1 is a schematic front view of an underground diaphragm wall demolishing construction device according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of an underground diaphragm wall demolishing construction device according to an embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a slide device and a U-shaped card according to an embodiment of the invention;
FIG. 4 is a schematic view of a concrete cube cutting and shipping construction process according to an embodiment of the present invention;
FIG. 5 is a schematic view of an operation platform frame node according to an embodiment of the present invention;
fig. 6 is a schematic view of a frame body node of an operation platform for demolishing an underground diaphragm wall according to an embodiment of the invention.
In the figure: the concrete pile comprises a concrete cube 1, a channel steel I, a socket joint type scaffold pipe 3, a scaffold pipe 4, a wall connecting piece 5, a wood springboard 7, a channel steel II 8, a steel bar with the diameter of 25mm 9, a steel pipe 10, a U-shaped clamp 11, a door frame 12, a pulley 13, a hole II 14, a cutting gap 15, round steel 16, a lifting rope 17, a clamping ring 18 and a chain block 19.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
The invention is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1-5, the invention provides a construction device for dismantling an underground continuous wall, which comprises a non-dismantling wall body, a dismantling wall body, an operation platform and a slideway, wherein the dismantling wall body is divided into a plurality of uniform concrete cubes 1 according to actual needs, the operation platform is erected, a channel steel I2 is arranged at the bottom of the operation platform along the wall body direction, a socket scaffold tube 3 is arranged as a vertical rod of a frame body, the height of the socket scaffold tube 3 is determined according to the height of the concrete cubes 1, the height of a first layer of scaffold tube is 150mm lower than the height of the cubes, the heights of other layers of scaffold tubes are the same as the height of the cubes, a transverse and longitudinal scaffold tube 4 is erected, the step distance of the frame body is the same as the height of each layer of socket scaffold tube 3, a placement hole I5 is formed on the dismantling wall body according to the division into a plurality of uniform concrete cubes 1, the first placing hole 5 is used as a boundary at the edge of the detachable wall body, the other vertical horizontal rods of each frame body pass through the first placing hole 5 to be connected with steel pipes at the other side of the wall body to form a wall connecting piece 6 to ensure the stability of the frame body, the top end of the frame body is fully paved with a wood springboard 7 after the frame body is erected, the wood springboard 7 is tightly bound with the frame body by iron wires, a slide way is placed on the frame body right in front of a concrete cube 1 to be cut, the slide way is placed in the middle according to the position of the cutting cube, the slide way is placed and installed in sections along the length of an operation platform and extends to the ground of the operation platform, channel steel two 8 are arranged at two ends of the slide way, steel bars 9 are welded at equal intervals between the channel steel two ends 8, steel pipes 10 with the width smaller than the width of the slide way are sleeved on the steel bars 9, the steel pipes can rotate on the steel bars 9 under the action of external force, portal frames 12 at two ends of the slide way are installed at the edge of the plane of the operation platform, the two ends of the portal frame 12 are provided with vertical rods which are socket joint type scaffold tubes and are connected with a vertical tube of an operation platform body, the common scaffold tubes are used as cross rods and are connected with vertical rod buckles at the two ends, the height of the portal frame 12 is larger than that of the concrete cube 1, pulleys 13 are arranged at the middle section of the cross rod of the portal frame 12, two placement holes 14 are formed in the middle of the divided concrete cube, and the concrete cube 1 is sequentially cut on four sides of the wall body through the placement holes 14 by using a rope saw, so that the concrete cube 1 is separated from the detachable wall body.
The dismantling construction steps of the device further comprise: the cutting sequence is firstly cutting the left and right sides of the cube, then cutting the bottom surface of the cube, forming a cutting gap 15 with the wall body after the cutting of the bottom surface of the cube is completed, vertically placing round steel 16 in the cutting gap 15, then cutting the top surface of the cube, completely separating the cube from the wall body, then sitting on the round steel 16 at the bottom, sequentially penetrating through two placing holes 14 by a hoisting rope 17, enabling the hoisting rope 17 to pull the concrete cube 1, connecting the end part of the hoisting rope 17 with a chain block 19 by using a clamping ring 18, pulling the chain block 19 to enable the concrete cube 1 to have an outward pulling force through a pulley 13, enabling the concrete cube 1 to be transported to an outside slideway by sliding on the round steel 16, changing the directions of the hoisting rope 17 and the chain block 19 when the concrete cube 1 moves to the plane end part of an operation platform, reducing the sliding speed of the concrete cube 1 on the slideway by using a counter force of the pulley 13, enabling the hoisting rope to be safely transported to the ground, removing the second block 1, removing the whole concrete cube 6, and gradually fixing the concrete cube by using a connecting frame 6, cutting the whole construction platform, and removing the concrete cube by using the whole construction platform, and cutting the top plate.
The plane width of the operation platform is 2 times of the width of the concrete cube 1, the length is 2 times of the thickness of the wall body, and an included angle of 30 degrees is formed between the slope and the ground along the top end of the length direction of the platform and the ground direction. The width of the slideway is 200mm larger than that of the concrete cube 1. The diameter of the reinforcing bar 9 is 25mm. The diameter of the round steel 16 is 8mm. The slide way is fixed on the scaffold tube of the operation platform through a U-shaped clamp 11.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
1. The utility model provides a construction equipment is demolishd to underground diaphragm wall, includes non-removable wall body, operation platform, slide, its characterized in that, the removable wall body is divided into a plurality of even concrete cubes (1) according to actual need, set up operation platform, operation platform bottom places channel-section steel one (2) along the wall body direction, place socket joint formula scaffold tube (3) as support body pole setting, socket joint formula scaffold tube (3) highly is according to concrete cube (1) highly determination, first layer scaffold tube highly is less than cube height 150mm, other layers scaffold tube highly is the same with cube height, set up horizontal vertical scaffold tube (4), support body step is highly the same with every layer socket joint formula scaffold tube (3), with the support body height of tearing open, A detachable wall body is provided with a first placing hole (5) according to four corners of a plurality of uniform concrete cubes (1), the first placing hole (5) is provided with a hole at the edge of the detachable wall body, the edge of the detachable wall body is used as a boundary, other holes are provided with a division cross as the center, the longitudinal horizontal rod of each frame body is connected with a steel pipe at the other side of the wall body through the first placing hole (5) to form a wall connecting piece (6) to ensure the stability of the frame body, the top of the frame body is fully covered with a wood springboard (7) after the frame body is built, the wood springboard (7) is tightly tied with the frame body by iron wires, a slide way is placed on the frame body right in front of the concrete cubes (1) to be cut, the slide way is placed in the middle according to the position of the cutting cubes, the slide way is placed and installed in sections along the length of an operation platform and extends to the ground of the operation platform, the two ends of the slide way are provided with a second channel steel (8), the steel bars (9) are welded between the channel steel II (8) at the two ends at equal intervals, steel pipes (10) with the width smaller than the width of the slide ways are sleeved on the steel bars (9), the steel pipes can rotate on the steel bars (9) under the action of external force, portal frames (12) at the two ends of the slide ways are installed at the edges of the plane of the operation platform, vertical rods at the two ends of the portal frames (12) are socket joint type scaffold pipes and are connected with vertical rods of the operation platform frame body, the common scaffold pipes are used as transverse rods and are connected with vertical rod buckles at the two ends, pulleys (13) are arranged at the middle section of the transverse rods of the portal frames (12), two placement holes (14) are formed in the middle of the divided concrete cubes, and the four faces of the wall body are sequentially cut by using a rope saw through the placement holes (14), so that the concrete cubes (1) are separated from the detachable wall body.
2. The underground diaphragm wall demolishing construction device according to claim 1, characterized in that the plane width of the operation platform is 2 times the width of the concrete cube (1), the length is 2 times the thickness of the wall, and the slope is inclined at an angle of 30 degrees with the ground along the top of the length direction of the platform.
3. An underground diaphragm wall demolition construction unit according to claim 1, characterized in that the slideway width is 200mm greater than the width of the concrete cube (1).
4. A diaphragm wall demolition arrangement according to claim 1, characterized in that the diameter of the reinforcement bars (9) is 25mm.
5. The underground diaphragm wall demolishing construction device according to claim 1, characterized in that a cutting gap (15) is formed between the bottom surface of the concrete cube (1) and the wall body after the bottom surface is cut, a round steel is vertically placed in the cutting gap (15), and the diameter of the round steel (16) is 8mm.
6. A diaphragm wall demolition work apparatus according to any one of claims 2-4, characterized in that the chute is secured to the handling platform scaffold tube by means of a U-shaped clip (11).
7. A construction method using the underground diaphragm wall demolishing construction apparatus of claim 1, characterized by comprising the steps of:
a: cutting left and right sides of the concrete cube (1), cutting the bottom surface of the concrete cube (1), forming a cutting gap (15) with a wall body after the bottom surface of the concrete cube (1) is cut, vertically placing a round steel (16) in the cutting gap (15), and then cutting the top surface of the concrete cube (1);
b: sequentially penetrating through the two placement holes (14) by using a lifting rope (17), connecting the end part of the lifting rope (17) with a chain block (19) by using a clamping ring (18), pulling the chain block (19) to enable the concrete cube (1) to have outward pulling force through the pulley (13), and conveying the concrete cube (1) to the slideway;
c: and dismantling the second concrete cube (1), dismantling the wall connecting piece (6), placing an operation platform in front of the concrete cube (1) to be cut by moving the frame body, fixing the wall connecting piece (6), stabilizing the frame body, repeating the construction steps, and clearing the cut concrete cube (1) out of a construction site by using a tower crane after all the wall bodies are dismantled.
8. A construction method of an underground diaphragm wall demolishing construction equipment according to claim 7, characterized in that in the B step, when the concrete cube (1) is run to the planar end of the operating platform, the direction of the hoisting ropes (17) and the chain block (19) is changed; when the concrete cube (1) is transported to the inclined plane of the operation platform, the chain (19) acts on the counter force of the movement direction on the concrete cube (1) through the pulley (13) to transport the concrete cube (1) to the ground.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911196865.9A CN110965803B (en) | 2019-11-29 | 2019-11-29 | Underground diaphragm wall dismantling construction device and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911196865.9A CN110965803B (en) | 2019-11-29 | 2019-11-29 | Underground diaphragm wall dismantling construction device and construction method thereof |
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| CN110965803A CN110965803A (en) | 2020-04-07 |
| CN110965803B true CN110965803B (en) | 2024-03-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741964A (en) * | 2013-12-31 | 2014-04-23 | 攀钢集团工程技术有限公司 | Rake type lifting frame and dismantling method for reinforced concrete groove-shaped roof boards |
| CN207451334U (en) * | 2017-11-09 | 2018-06-05 | 北京发研工程技术有限公司 | A kind of wire rod mobile device and the wire rod moving mechanism of concrete cutting |
| CN207620429U (en) * | 2017-12-05 | 2018-07-17 | 深圳市工勘岩土集团有限公司 | The constructing structure of rope saw dismantling concrete wall |
| CN108951611A (en) * | 2018-07-20 | 2018-12-07 | 浙江吉通地空建筑科技有限公司 | Canal formula cuts assembled underground continuous wall and construction method |
| CN212176671U (en) * | 2019-11-29 | 2020-12-18 | 中冶天工集团有限公司 | Underground continuous wall demolishs construction equipment |
-
2019
- 2019-11-29 CN CN201911196865.9A patent/CN110965803B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741964A (en) * | 2013-12-31 | 2014-04-23 | 攀钢集团工程技术有限公司 | Rake type lifting frame and dismantling method for reinforced concrete groove-shaped roof boards |
| CN207451334U (en) * | 2017-11-09 | 2018-06-05 | 北京发研工程技术有限公司 | A kind of wire rod mobile device and the wire rod moving mechanism of concrete cutting |
| CN207620429U (en) * | 2017-12-05 | 2018-07-17 | 深圳市工勘岩土集团有限公司 | The constructing structure of rope saw dismantling concrete wall |
| CN108951611A (en) * | 2018-07-20 | 2018-12-07 | 浙江吉通地空建筑科技有限公司 | Canal formula cuts assembled underground continuous wall and construction method |
| CN212176671U (en) * | 2019-11-29 | 2020-12-18 | 中冶天工集团有限公司 | Underground continuous wall demolishs construction equipment |
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