Detachable deformation formwork for micro-vibration prevention foundation construction in narrow and small space and construction method

Abstract

The invention discloses a detachable deformation formwork for micro-vibration prevention foundation construction in a narrow space and a construction method. The detachable deformation formwork comprises a metal mold. The plastic layer is arranged at the end, facing the side wall of the foundation pit, of the metal mold, and the plastic layer can be corroded, so that a gap exists between the metal mold and the side wall of the foundation pit. By the adoption of the technical scheme, the metal mold and the plastic layer are combined to form the composite formwork, the metal mold can guarantee the smoothness of the surface of a building formed through pouring, the plastic layer can be eliminated through corrosion after the building is formed, a gap is reserved between the metal mold and the side wall of a foundation pit, and then demolding of the metal mold is facilitated; if only the metal mold is used, large extrusion force is applied to the metal mold after the building is formed, so that the metal mold is clamped between the building and the side wall of the foundation pit and is difficult to take out; if only a plastic layer is used, expansion force in the building forming process can cause deformation of the plastic layer, and then the shape of the side wall of the building is irregular and not attractive.

Description

Technical Field

[0001] The present application relates to the field of intelligent formwork technology, and in particular to a detachable deformable formwork and a construction method for anti-micro-vibration foundation construction in a narrow space. Background Art

[0002] During the foundation pit construction process, it is necessary to cast a building in the center of the foundation pit. In order to reduce the impact of vibration on the building, a shock-absorbing joint needs to be left between the building and the side wall of the foundation pit. However, due to the extremely small width of the shock-absorbing joint, conventional formwork cannot be used.

[0003] If bricks are stacked for support, on the one hand, after pouring, the bricks need to be taken out one by one, which reduces the construction efficiency; on the other hand, due to the gaps between the bricks, the surface of the formed building will be bumpy and unsightly. Summary of the invention

[0004] The purpose of this application is to provide a detachable deformable formwork and construction method for anti-micro-vibration foundation construction in a narrow space, so as to improve the problem that the high-altitude construction of tie beams is more troublesome and has higher safety hazards.

[0005] The present application provides a removable deformable formwork for anti-micro-vibration foundation construction in a narrow space, which adopts the following technical solution: A detachable deformable template for anti-micro-vibration foundation construction in a narrow space comprises a metal mold and a plastic layer, wherein the plastic layer is arranged at one end of the metal mold facing the side wall of the foundation pit, and the plastic layer can be corroded so that a gap exists between the metal mold and the side wall of the foundation pit.

[0006] By adopting the above technical scheme, a composite formwork formed by a combination of a metal mold and a plastic layer is used. The metal mold can ensure the smoothness of the surface of the cast building, and the plastic layer can be eliminated by corrosion after the building is formed, leaving a gap between the metal mold and the side wall of the foundation pit, thereby facilitating the demoulding of the metal mold; if only the metal mold is used, a large extrusion force will be applied to the metal mold after the building is formed, causing the metal mold to be clamped between the building and the side wall of the foundation pit and difficult to remove; if only the plastic layer is used, the expansion force during the building forming process will cause the plastic layer to deform, resulting in an irregular and unsightly shape of the side wall of the building.

[0007] Optionally, the plastic layer is provided with a first metal support block, the first metal support block is bonded to the metal mold, and one end of the first metal support block away from the metal mold is used to contact the side wall of the foundation pit.

[0008] Through the above technical solution, the first metal support block is added to the plastic layer to support the metal mold, reducing the possibility of the metal mold as a whole tilting and deflecting during the building molding process, and the contact area between the first metal support block and the foundation pit is small. After the plastic layer is corroded, the first metal support block can be removed, thereby facilitating the demoulding gap for the metal mold.

[0009] Optionally, the first metal support blocks are provided in multiple groups in the horizontal direction, and each group of the first metal support blocks is provided in multiple blocks in the vertical direction. The first metal support blocks in the same group are connected to the same first disassembly steel wire, and the top of the first disassembly steel wire passes through the plastic layer.

[0010] Through the above technical solution, multiple first metal support blocks in the same group can be easily connected through the first disassembly steel wire, and then the multiple first metal support blocks in the same group can be dismantled by pulling the first disassembly steel wire.

[0011] Optionally, a group of second metal support blocks are respectively bonded to the two side walls of the metal mold, and the second metal support blocks are covered by a plastic layer. Each group of second metal support blocks is provided with multiple ones in the vertical direction, and each group of second metal support blocks is connected to the same second disassembly steel wire, and the top of the second disassembly steel wire passes through the plastic layer.

[0012] Through the above technical solution, the second metal support block is used to support the side wall of the metal mold, thereby increasing the strength of the plastic layer on the side wall of the metal mold. At the same time, after the second metal support block is removed, space can be left for the metal mold in the width direction, which is conducive to the removal of the metal mold.

[0013] Furthermore, the parts of the plurality of first disassembly steel wires and the two second disassembly steel wires passing through the plastic layer are connected to the same suspension rod.

[0014] Through the above technical solution, pulling the suspension rod can pull all the first disassembly wires and the second disassembly wires, which makes it easier to pull all the first metal support blocks and the second metal support blocks, thereby improving the disassembly efficiency of the first metal support blocks and the second metal support blocks.

[0015] Optionally, a collecting base is provided under the metal mold, and the top surface of the collecting base has a first slope and a second slope, and a convergence groove is formed between the first slope and the second slope. A metal suction pipe is connected to the metal mold, and the bottom of the metal suction pipe extends to the lowest point of the convergence groove. The top of the metal suction pipe extends out of the plastic layer, and the bottom of the metal suction pipe is provided with a third slope.

[0016] Through the above technical solution, a convergence groove is formed by the first inclined surface and the second inclined surface, which is convenient for collecting the liquid generated after the plastic layer is corroded, and then the liquid is pumped out of the foundation pit through the metal suction pipe to prevent the waste liquid from seeping into the interior of the foundation pit and causing safety hazards.

[0017] Optionally, the base includes a first part and a second part, the first part is located below the metal mold, the second part is located below the plastic layer, the first part is connected to the metal mold, and the second part is connected to the plurality of first disassembly wires.

[0018] By adopting the above technical solution, the first part and the second part can be separated, and when the first disassembly wire is disassembled, the second part can be disassembled together, thereby reducing the possibility that the second part will hinder the disassembly of the metal mold.

[0019] Optionally, the first part is made of metal, the second part is made of plastic, and the bottom surface of the second part is provided with an anti-corrosion layer.

[0020] By adopting the above technical solution, the first part is made of metal to facilitate casting of the building, and the second part is made of plastic to facilitate demolition after the building is formed. The anti-corrosion layer effectively prevents the second part from being corroded when the plastic layer is corroded.

[0021] A construction method comprises the following steps: S1, pasting an anti-corrosion film on the side wall of a foundation pit; S2, installing the above-mentioned detachable deformable formwork for construction of a narrow space anti-micro-vibration foundation close to the side wall of the foundation pit until a closed pouring area is formed along the circumference of the foundation pit; S3, installing a steel cage in the pouring area and pouring concrete, and after the concrete solidifies, a building is formed; S4, removing the above-mentioned detachable deformable formwork for construction of a narrow space anti-micro-vibration foundation.

[0022] Optionally, step S4 includes the following steps: S41, corroding the plastic layer with a corrosive liquid; S42, extracting the liquid produced after the plastic layer is corroded; S43, demoulding the metal mold from the building and moving it out of the foundation pit.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. A composite formwork formed by a metal mold and a plastic layer is used. The metal mold can ensure the smoothness of the surface of the cast building, while the plastic layer can be eliminated by corrosion after the building is formed, leaving a gap between the metal mold and the side wall of the foundation pit, thereby facilitating demoulding of the metal mold. If only the metal mold is used, a large extrusion force will be applied to the metal mold after the building is formed, causing the metal mold to be sandwiched between the building and the side wall of the foundation pit and difficult to remove. If only the plastic layer is used, the expansion force during the building forming process will cause the plastic layer to deform, resulting in an irregular and unsightly shape of the building side wall. 2. Add the first metal support block in the plastic layer to support the metal mold, reduce the possibility of the metal mold tilting and deflecting during the building molding process, and the contact area between the first metal support block and the foundation pit is small. After the plastic layer is corroded, the first metal support block can be removed, thereby facilitating the demoulding gap for the metal mold; 3. The first disassembly wire facilitates the connection of multiple first metal support blocks in the same group, and the multiple first metal support blocks in the same group can be disassembled by pulling the first disassembly wire; 4. The second metal support block facilitates supporting the side wall of the metal mold, thereby increasing the strength of the plastic layer on the side wall of the metal mold. At the same time, after the second metal support block is removed, space can be left for the metal mold in the width direction, which is conducive to the removal of the metal mold; 5. A convergence groove is formed by the first inclined surface and the second inclined surface to collect the liquid generated after the plastic layer is corroded, and then the liquid is pumped out of the foundation pit through a metal suction pipe to prevent the waste liquid from seeping into the foundation pit and causing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of an overall detachable deformable template for construction of a narrow space anti-micro-vibration foundation in the present invention.

[0025] Figure 2 It is a schematic diagram of the first metal support block and the second metal support block in the present invention.

[0026] Figure 3 It is a schematic diagram of foundation pit and building in the present invention.

[0027] Figure 4 Schematic diagram of an injection mold in the present invention.

[0028] Figure 5 It is a schematic diagram showing the coordination state of the hook and the polypropylene film in the present invention.

[0029] In the figure, 1. metal mold; 11. lifting ring; 2. plastic layer; 3. first metal support block; 31. first disassembly wire; 32. lifting rod; 4. second metal support block; 41. second disassembly wire; 5. collecting base; 51. first part; 52. second part; 521. lifting hook; 53. first inclined plane; 54. second inclined plane; 55. converging groove; 6. metal suction pipe; 61. third inclined plane; 7. frame; 71. upper mold; 72. lower mold; 73. first hydraulic cylinder; 74. second hydraulic cylinder; 741. stabilizing frame; 742. positioning rod; 743. limiting plate; 75. unloading roller; 751. third hydraulic cylinder; 752. punching head; 753. punching table; 754. finger cylinder; 755. fourth hydraulic cylinder; 756. shaping rod; 8. foundation pit; 9. building. DETAILED DESCRIPTION

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Embodiment 1 In a first aspect, the present application discloses a detachable deformable formwork for anti-micro-vibration foundation construction in a narrow space.

[0033] A removable deformable formwork for anti-micro-vibration foundation construction in a narrow space, referring to Figure 1 to Figure 2, including a metal mold 1 and a plastic layer 2, the plastic layer 2 is arranged at one end of the metal mold 1 facing the side wall of the foundation pit, and the plastic layer 2 can be corroded so that there is a gap between the metal mold 1 and the side wall of the foundation pit. The composite template formed by the combination of the metal mold 1 and the plastic layer 2, the metal mold 1 can ensure the smoothness of the surface of the cast building, and the plastic layer 2 can be eliminated by corrosion after the building is formed, and a gap is left between the metal mold 1 and the side wall of the foundation pit, thereby facilitating the demoulding of the metal mold 1; if only the metal mold 1 is used, a large extrusion force will be applied to the metal mold 1 after the building is formed, causing the metal mold 1 to be sandwiched between the building and the side wall of the foundation pit and difficult to remove; if only the plastic layer 2 is used, the expansion force during the building forming process will cause the plastic layer 2 to deform, thereby causing the shape of the side wall of the building to be irregular and unsightly. The plastic layer 2 can be made of polycarbonate, and the solvent used to corrode the plastic layer 2 can be concentrated hydrochloric acid with a concentration greater than 37%. When used, the concentrated hydrochloric acid can be heated to 60 degrees Celsius to greatly increase the corrosion rate.

[0034] Specifically, the plastic layer 2 is provided with a first metal support block 3, the first metal support block 3 is bonded to the metal mold 1, and the end of the first metal support block 3 away from the metal mold 1 is used to contact the side wall of the foundation pit, so as to support the metal mold 1 and reduce the possibility of the metal mold 1 tilting and deflecting as a whole during the building molding process. At the same time, the contact area between the first metal support block 3 and the foundation pit is small, so the pulling force to remove the first metal support block 3 is relatively small. And the first metal support block 3 has little corrosion effect on the plastic layer 2. After the plastic layer 2 is corroded, the first metal support block 3 can be taken out, which is convenient for leaving a demoulding gap for the metal mold 1. In addition, by adopting the cooperation method of the first metal support block 3 and the plastic layer 2, the plastic layer 2 can be used to help the first metal support block 3 share the pressure generated when the building expands, avoiding the possibility of the first metal support block 3 being embedded in the side wall of the foundation pit.

[0035] More specifically, a plurality of first metal support blocks 3 are provided in the horizontal direction, and each group of first metal support blocks 3 is provided with a plurality of first metal support blocks 3 in the vertical direction. The first metal support blocks 3 in the same group are connected with the same first disassembly wire 31, and the top of the first disassembly wire 31 is provided through the plastic layer 2. The first disassembly wire 31 is used to facilitate the connection of the plurality of first metal support blocks 3 in the same group, and the plurality of first metal support blocks 3 in the same group can be disassembled by pulling the first disassembly wire 31.

[0036] In addition, a group of second metal support blocks 4 are also bonded to the two side walls of the metal mold 1, that is, there are two groups of second metal support blocks 4 on each metal mold 1. The second metal support blocks 4 are covered by the plastic layer 2, and the side of the second metal support blocks 4 away from the side wall of the foundation pit is flush with the metal mold 1, so that the metal mold 1 can play a better supporting role when it contacts the adjacent template. Each group of second metal support blocks 4 is provided with a plurality of them in the vertical direction, and each group of second metal support blocks 4 is fixedly connected with the same second disassembly steel wire 41, and the top of the second disassembly steel wire 41 is arranged to pass through the plastic layer 2. The second metal support blocks 4 are used to support the side walls of the metal mold 1, increase the strength of the plastic layer 2 on the side walls of the metal mold 1, and at the same time, after the second metal support blocks 4 are removed, space can be left for the metal mold 1 in the width direction, which is conducive to the removal of the metal mold 1.

[0037] It should be noted that the parts where the multiple first disassembly steel wires 31 and the two second disassembly steel wires 41 pass through the plastic layer 2 are connected to the same suspension rod 32. Pulling the suspension rod 32 can pull all the first disassembly steel wires 31 and the second disassembly steel wires 41, thereby facilitating pulling all the first metal support blocks 3 and the second metal support blocks 4, thereby improving the disassembly efficiency of the first metal support blocks 3 and the second metal support blocks 4.

[0038] A collecting base 5 is provided below the metal mold 1. The top surface of the collecting base 5 has a first inclined surface 53 and a second inclined surface 54. A convergence groove 55 is formed between the first inclined surface 53 and the second inclined surface 54, which is convenient for collecting the liquid generated after the plastic layer 2 is corroded. A metal suction pipe 6 is connected to the metal mold 1. The metal suction pipe 6 can be bonded to the metal mold 1 or fixedly connected to the first metal support block 3 so that it can be removed together when the first support block is removed. The bottom of the metal suction pipe 6 extends to the lowest point of the convergence groove 55 so as to extract the liquid generated after the plastic layer 2 is corroded from the foundation pit. The top of the metal suction pipe 6 extends out of the plastic layer 2 so as to be connected to the pump. The pump can adopt a PVDF magnetically driven centrifugal pump to adapt to the suction of corrosive liquids. A third inclined surface 61 is provided at the bottom of the metal suction pipe 6, and the third inclined surface 61 can reduce the possibility of the metal suction pipe 6 being blocked.

[0039] Specifically, the base includes a first part 51 and a second part 52, the first part 51 is located below the metal mold 1, the second part 52 is located below the plastic layer 2, the first part 51 is connected to the metal mold 1, and the second part 52 is connected to a plurality of first disassembly wires 31. The first part 51 and the second part 52 can be separated, and when the first disassembly wires 31 are disassembled, the second part 52 can be disassembled together, thereby reducing the possibility that the second part 52 will hinder the disassembly of the metal mold 1. A hook 521 can be pre-embedded in the second part 52, and the hook 521 facilitates the connection between the second part 52 and the first disassembly wires 31.

[0040] More specifically, the first part 51 is made of metal, the second part 52 is made of plastic, and the top surface of the second part 52 is provided with an anti-corrosion layer. The first part 51 is made of metal to facilitate casting of the building, and the second part 52 is made of plastic to facilitate dismantling of the building after forming. The anti-corrosion layer effectively prevents the second part 52 from being corroded when the plastic layer 2 is corroded. The anti-corrosion material can be a biaxially oriented polypropylene film. A connecting groove is provided on one side of the first part 51 facing the second part 52, which is used to allow molten plastic to enter when the second part 52 is injected, so as to enhance the bonding force between the first part 51 and the second part 52, and at the same time can be broken when the second part 52 is pulled up.

[0041] In addition, a lifting ring 11 is fixedly connected to the metal mold 1 to facilitate lifting the metal mold 1 .

[0042] In a second aspect, the present application discloses a construction method.

[0043] A construction method, referring to Figure 3 , including the following steps: S1. Paste an anti-corrosion film on the side wall of the foundation pit. The anti-corrosion film can be made of biaxially oriented polypropylene film to reduce the possibility of corrosion of the side wall of the foundation pit; S2. Install the above-mentioned detachable deformable template for narrow space anti-micro-vibration foundation construction along the side wall of the foundation pit, close to the side wall of the foundation pit, until a closed pouring area is formed along the circumference of the foundation pit; S3. Install the steel cage in the pouring area and pour concrete. After the concrete solidifies, the building is formed; S4, dismantling the above-mentioned detachable deformable formwork for the narrow space anti-micro-vibration foundation construction, the dismantling of the formwork includes the following steps: S41, corroding the plastic layer 2 with the corrosive liquid, and the liquid generated after the plastic layer 2 is corroded is collected in the collection tank 55; S42, extracting the liquid produced by the corrosion of the plastic layer 2 through the metal suction pipe 6; S43, lift the suspension rod 32, pull the first disassembly wire 31 and the second disassembly wire 41, and then pull the first metal support block 3, the second metal support block 4 and the second part 52 of the collection base 5. Then, move the metal mold 1 toward the side wall of the foundation pit first, so that the metal mold 1 is separated from the building, and then lift the metal mold 1 through the lifting ring 11 above the metal mold 1 to realize the removal of the metal mold 1.

[0044] Working principle: A composite formwork is formed by combining a metal mold 1 and a plastic layer 2. The metal mold 1 can ensure the smoothness of the surface of the cast building, while the plastic layer 2 can be eliminated by corrosion after the building is formed, leaving a gap between the metal mold 1 and the side wall of the foundation pit, thereby facilitating the demoulding of the metal mold 1. If only the metal mold 1 is used, a large extrusion pressure will be applied to the metal mold 1 after the building is formed, causing the metal mold 1 to be sandwiched between the building and the side wall of the foundation pit and difficult to remove. If only the plastic layer 2 is used, the expansion force during the building forming process will cause the plastic layer 2 to deform, resulting in an irregular and unsightly shape of the side wall of the building.

[0045] The first metal support block 3 is added to the plastic layer 2 to support the metal mold 1, reducing the possibility of the metal mold 1 tilting and deflecting as a whole during the building molding process. At the same time, the contact area between the first metal support block 3 and the foundation pit is small. After the plastic layer 2 is corroded, the first metal support block 3 can be taken out, so as to leave a demoulding gap for the metal mold 1. The first disassembly wire 31 is used to facilitate the connection of multiple first metal support blocks 3 in the same group, and then the multiple first metal support blocks 3 in the same group can be removed by pulling the first disassembly wire 31.

[0046] The second metal support block 4 facilitates supporting the side wall of the metal mold 1 and increases the strength of the plastic layer 2 on the side wall of the metal mold 1. At the same time, after the second metal support block 4 is removed, space can be left for the metal mold 1 in the width direction, which is conducive to the removal of the metal mold 1.

[0047] The first inclined surface 53 and the second inclined surface 54 form a collecting groove 55 to collect the liquid generated after the plastic layer 2 is corroded, and then the liquid is pumped out of the foundation pit through the metal suction pipe 6 to prevent the waste liquid from seeping into the foundation pit and causing safety hazards.

[0048] An injection mold for producing a removable deformable template for anti-micro-vibration foundation construction in a narrow space in the first aspect, referring to Figure 4 and Figure 5 , including a frame 7, an upper mold 71 and a lower mold 72, wherein the upper mold 71 is fixedly mounted on the frame 7, and the lower mold 72 is located below the upper mold 71. A first hydraulic cylinder 73 is also fixedly connected to the frame 7, and a piston rod of the first hydraulic cylinder 73 is fixedly connected to the bottom of the lower mold 72. The first hydraulic cylinder 73 can drive the lower mold 72 to move so that the lower mold 72 and the upper mold 71 are closed or separated.

[0049] The frame 7 is also fixedly connected to a second hydraulic cylinder 74, and a stabilizing frame 741 is fixedly connected to the piston rod of the second hydraulic cylinder 74, and a positioning rod 742 and a limiting plate 743 are fixedly connected to the stabilizing frame 741. The number of the positioning rods 742 is the same as the number of the lifting rings 11, and each lifting ring 11 corresponds to two positioning rods 742, and the two positioning rods 742 are in contact with the bottom of both sides of the lifting ring 11, and the limiting plate 743 is used to contact the top surface of the metal mold 1, so that the positioning rods 742 and the limiting plate 743 cooperate to fix the position of the metal mold 1. It should be noted that a third inclined surface 61 is provided on the lower side of the limiting plate 743 near the end of the metal mold 1, which is used to prevent the limiting plate 743 from interfering with the metal mold 1 when it is extended under the drive of the second hydraulic cylinder 74.

[0050] A feeding roller 75 is rotatably connected to the frame 7, and a polypropylene film is rolled up on the feeding roller 75. A third hydraulic cylinder 751 is also fixedly installed on the frame 7, and a punch head 752 is connected to the output end of the third hydraulic cylinder 751. A punching table 753 is provided below the punch head 752, and the punching table 753 is fixedly connected to the frame 7. The polypropylene film passes between the punch head 752 and the punching table 753, and the punch head 752 is driven by the third hydraulic cylinder 751 to move downward, punching out an avoidance groove for the hook 521 to pass through on the polypropylene film. A finger cylinder 754 is also fixedly connected to the lower mold 72, and the finger cylinder 754 is located on the side of the lower mold 72 away from the feeding roller 75, so as to clamp the polypropylene film passing through the lower mold 72. It should be noted that the polypropylene film is located between the upper mold 71 and the lower mold 72, and when the upper mold 71 and the lower mold 72 are closed, the polypropylene film is clamped.

[0051] The lower mold 72 is also fixedly connected to a fourth hydraulic cylinder 755, and the movable end of the fourth hydraulic cylinder 755 is fixedly connected to a shaping rod 756. The shaping rod 756 is lower than the position where the polypropylene film contacts the lower mold 72. The shaping rod 756 contacts the top surface of the polypropylene film to form a convergence groove 55 on the top surface of the polypropylene film, that is, the polypropylene film on both sides of the shaping rod 756 are respectively the first inclined surface 53 and the second inclined surface 54.

[0052] In addition, the side walls of the upper mold 71 and the lower mold 72 are respectively provided with an injection port to realize injection molding.

[0053] Working principle: During operation, the piston rod of the first hydraulic cylinder 73 retracts, and the lower mold 72 is separated from the upper mold 71. Then the operator places the hook 521 in the lower mold 72, and then pulls the polypropylene film from the unloading roller 75, and places the polypropylene film between the punch head 752 and the punching table 753. At this time, the piston rod of the third hydraulic cylinder 751 extends, and the punch head 752 punches out an avoidance groove on the polypropylene film. In this embodiment, there are two hooks 521, so two avoidance grooves are also punched out. Then the polypropylene film with the avoidance groove is placed in the lower mold 72, and the polypropylene film is put on the two hooks 521. After passing through the inner and outer sides of the self-forming rod 756, the lower mold 72 is pulled out, and the polypropylene film is clamped by the finger cylinder 754.

[0054] Then, the metal mold 1 bonded with the first metal support block 3, the second metal support block 4 and the metal suction tube 6 is placed into the upper mold 71 through the lifting ring 11. At this time, the piston rod of the second hydraulic cylinder 74 is extended, so that the positioning rod 742 cooperates with the limit plate 743 to fix the metal mold 1, and then the bottom of the first disassembly wire 31 is connected to the hook 521. At this time, the piston rod of the first hydraulic cylinder 73 is extended, driving the lower mold 72 to move up and close with the upper mold 71. Then the operator cuts off the two ends of the polypropylene film outside the upper mold 71, and finally injects the upper mold 71 and the lower mold 72 at the same time through the injection port.

[0055] After injection molding, the piston rod of the fourth hydraulic cylinder 755 retracts, pulling out the molding rod 756, and then the piston rod of the first hydraulic cylinder 73 retracts, driving the lower mold 72 to separate from the upper mold 71, and then the lifting equipment lifts the metal mold 1 through the lifting ring 11. At this time, the piston rod of the second hydraulic cylinder 74 retracts, driving the positioning rod 742 and the limit plate 743 to separate from the metal mold 1, and then the metal mold 1 is lifted away by the lifting equipment.

[0056] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A removable deformable formwork for anti-micro-vibration foundation construction in a narrow space, characterized in that: include A metal mold (1); and A plastic layer (2), the plastic layer (2) being arranged at one end of the metal mold (1) facing the side wall of the foundation pit, and the plastic layer (2) being capable of being corroded so that a gap exists between the metal mold (1) and the side wall of the foundation pit.

2. According to claim 1, a removable deformable formwork for construction of a narrow space anti-micro-vibration foundation, characterized in that: The plastic layer (2) is provided with a first metal support block (3), the first metal support block (3) is bonded to the metal mold (1), and one end of the first metal support block (3) away from the metal mold (1) is used to contact the side wall of the foundation pit.

3. According to claim 2, a removable deformable formwork for construction of a narrow space anti-micro-vibration foundation, characterized in that: The first metal support blocks (3) are provided in a plurality of groups in the horizontal direction, and each group of the first metal support blocks (3) is provided in a plurality of blocks in the vertical direction. The first metal support blocks (3) in the same group are connected to the same first disassembly steel wire (31), and the top of the first disassembly steel wire (31) is arranged to pass through the plastic layer (2).

4. The detachable deformable formwork for anti-micro-vibration foundation construction in a narrow space according to claim 3 is characterized by: A group of second metal support blocks (4) are also bonded to the two side walls of the metal mold (1), respectively. The second metal support blocks (4) are covered by the plastic layer (2). Each group of second metal support blocks (4) is provided with a plurality of second metal support blocks (4) in the vertical direction. Each group of second metal support blocks (4) is connected to the same second disassembly steel wire (41), and the top of the second disassembly steel wire (41) passes through the plastic layer (2).

5. The detachable deformable formwork for anti-micro-vibration foundation construction in a narrow space according to claim 4 is characterized by: The portions of the plurality of first disassembly steel wires (31) and the two second disassembly steel wires (41) that pass through the plastic layer (2) are connected to the same suspension rod (32).

6. The detachable deformable formwork for anti-micro-vibration foundation construction in a narrow space according to claim 5 is characterized by: A collecting base (5) is provided below the metal mold (1); the top surface of the collecting base (5) has a first inclined surface (53) and a second inclined surface (54); a convergence groove (55) is formed between the first inclined surface (53) and the second inclined surface (54); a metal suction pipe (6) is connected to the metal mold (1); the bottom of the metal suction pipe (6) extends to the lowest point of the convergence groove (55); the top of the metal suction pipe (6) extends out of the plastic layer (2); and a third inclined surface (61) is provided at the bottom of the metal suction pipe (6).

7. The detachable deformable formwork for anti-micro-vibration foundation construction in a narrow space according to claim 6 is characterized by: The base comprises a first part (51) and a second part (52), the first part (51) being located below the metal mold (1), the second part (52) being located below the plastic layer (2), the first part (51) being connected to the metal mold (1), and the second part (52) being connected to a plurality of the first disassembly steel wires (31).

8. The detachable deformable formwork for anti-micro-vibration foundation construction in a narrow space according to claim 7 is characterized by: The first part (51) is made of metal, the second part (52) is made of plastic, and the bottom surface of the second part (52) is provided with an anti-corrosion layer.

9. A construction method, characterized in that: The steps include: S1. Paste anti-corrosion film on the side wall of the foundation pit; S2. Install the removable deformable formwork for anti-micro-vibration foundation construction in a narrow space as described in any one of claims 1 to 8 close to the side wall of the foundation pit until a closed pouring area is formed along the circumference of the foundation pit; S3. Install the steel cage in the pouring area and pour concrete. After the concrete solidifies, the building is formed; S4. Dismantle the removable deformable formwork for the narrow space anti-micro-vibration foundation construction.

10. A construction method according to claim 9, characterized in that: The S4 step includes the following steps: S41, corroding the plastic layer (2) with a corrosive liquid; S42, extracting liquid produced by the corrosion of the plastic layer (2); S43, demoulding the metal mold (1) from the building and moving it out of the foundation pit.

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