Method for chiseling out a wall column outside a construction plate

Abstract

This application relates to the technical field of wall and column removal, and in particular to a method for removing a wall and column on the outer side of a construction slab, comprising the following steps: identifying the location to be removed on the concrete column; installing suspended scaffolding below the removal area, installing footboards on the suspended scaffolding, and then laying a protective net outside the scaffolding to shield and protect the removal area; removing the portion to be removed, proceeding from top to bottom and from inside to outside, with the removed debris falling onto the footboards; cleaning the debris from the footboards after removal; dismantling the suspended scaffolding and then cleaning up the construction site. This application has the effect of reducing safety hazards.

Description

Technical Field

[0001] This application relates to the technical field of wall column removal, and in particular to a method for removing wall columns on the outer side of a construction slab. Background Technology

[0002] During pile foundation construction, a layer of laitance will appear on the surface of the pile head after vibration. During the solidification process, water seepage will cause a low-grade solidification layer to form on the surface. In order to better bond the pile head with the pile cap and ensure the strength of the pile head, the pile is usually poured higher than the design elevation first, and then removed to the design elevation.

[0003] In certain specific environments, during the demolition process, for construction safety, it is essential to ensure that the demolished construction debris does not fall to the ground. Typically, cantilevered scaffolding is erected on the concrete column to be demolished before the demolition work commences.

[0004] During the chiseling process, the concrete in the area to be chiseled is dropped onto the cantilevered scaffolding below, which requires full enclosure. However, during the installation of the cantilevered scaffolding, gaps can easily exist between the inner side of the scaffolding and the side of the concrete, which can lead to concrete leakage during chiseling, posing a safety hazard. Summary of the Invention

[0005] To reduce safety hazards, this application provides a method for removing columns on the outer side of a construction slab.

[0006] The method for removing columns on the outer side of a construction slab provided in this application adopts the following technical solution:

[0007] A method for removing columns on the outer side of a construction slab includes the following steps:

[0008] Identify the location to be removed on the concrete column;

[0009] Install suspended scaffolding below the area to be excavated, install footboards on the suspended scaffolding, and then lay protective netting on the outside of the scaffolding to shield and protect the area to be excavated.

[0010] The part to be chiseled away is chiseled away from top to bottom and from inside to outside, and the debris is dropped onto the pedal.

[0011] After the chisel work is completed, clean up the debris on the pedal.

[0012] The suspended scaffolding was dismantled, and then the construction site was cleaned up.

[0013] By adopting the above technical solution, a suspended scaffold and protective net are set up at the location to be chiseled before the chiseling. When chiseling the concrete column, the chiseled concrete debris falls onto the footboard of the suspended scaffold, reducing the phenomenon of chiseled debris falling directly to the ground and reducing safety hazards.

[0014] Optionally, the suspended scaffold includes support rods, and multiple support rods are arranged around the concrete column. The footboard is installed on the support rod, and the footboard and the side of the concrete column are spaced apart. A support plate is provided on the footboard, with one side of the support plate placed on the footboard. The side of the support plate away from the footboard is inclined in the direction towards the concrete column and abuts against the side of the concrete column. The support plate is used to cover the gap between the footboard and the concrete column.

[0015] By adopting the above technical solution, a support plate is installed between the tread and the concrete column. The support plate blocks the gap between the tread and the concrete column, reducing the phenomenon of concrete debris falling through the gap. At the same time, the support plate is set at an angle so that impurities fall onto the tread for unified cleaning.

[0016] Optionally, multiple support plates are provided along the length of the side of the concrete column, and multiple mounting plates are provided on the pedal. The multiple mounting plates are arranged along the arrangement direction of the support plates. The mounting plates are positioned between two adjacent support plates and are connected to the support plates. The mounting plates have a snap groove, and the snap groove has an opening on the side near the pedal. The support rod abuts against the inner wall of the snap groove through the opening.

[0017] By adopting the above technical solution, a connection is set between the receiving plate and the mounting plate, and a connection is set between the mounting plate and the support rod, thereby shielding the support rod.

[0018] Optionally, the mounting plate has a slot on the side near the receiving plate, and the side of the receiving plate is engaged in the slot.

[0019] By adopting the above technical solution, the receiving plate and the mounting plate are connected by a snap-fit ​​mechanism, which improves the stability of the fit between the receiving plate and the mounting plate and enhances the safety of construction.

[0020] Optionally, the receiving plate includes an outer plate and an inner plate, the inner plate being slidably disposed within the outer plate, the outer plate and the inner plate being connected to two adjacent receiving plates respectively, an insert being integrally disposed on the side of the outer plate away from the inner plate, the insert being inserted into a slot, the side of the inner plate away from the outer plate being inserted into a slot, and a fastener for fixing the inner plate being disposed on the outer plate.

[0021] By adopting the above technical solution, the inner plate is set to slide inside the outer plate. After the mounting plate and support rod are connected and installed, the inner plate is slid until it engages with the buckle groove, so as to install the receiving plate and improve the installation efficiency.

[0022] Optionally, a clearance groove is formed on the inner wall of the buckle groove, and a baffle plate is provided in the clearance groove. The baffle plate is slidably disposed in the clearance groove in a direction toward the inside of the clearance groove. An elastic element is provided in the clearance groove. The elastic element is connected to the baffle plate to drive the baffle plate to slide in a direction toward the outside of the clearance groove. A guide surface is formed on the side of the baffle plate opposite to the clearance groove. The guide surface is disposed near the opening. The baffle plate is used to cover the buckle groove.

[0023] By adopting the above technical solution, a baffle plate is set in the groove. When the mounting plate is placed, the baffle plate moves into the clearance groove through the cooperation of the support rod and the guide surface. After the support rod is completely moved into the groove, the baffle plate returns to its initial position, blocking the groove and reducing the occurrence of impurities entering the groove. At the same time, the baffle plate restricts the position of the support rod, improving the stability of the fit between the mounting plate and the support plate.

[0024] Optionally, an abutment ring is provided on the inner wall of the groove away from the opening. The abutment ring is circular and is positioned towards the opening. The support rod abuts against the inner side of the abutment ring.

[0025] By adopting the above technical solution, an abutment ring is set in the groove, and the inner side of the abutment ring abuts against the support rod, thereby improving the stability of the fit between the mounting plate and the support rod.

[0026] Optionally, the side of the abutment ring that is off the opening is rotatably mounted on the inner wall of the buckle groove.

[0027] By adopting the above technical solution, when the gap between the tread and the concrete column is different, the tilt angle of the mounting plate after placement will be different. The abutment ring is set in the groove, so that even when the tilt angle of the mounting plate is different, the abutment ring will still be in contact with the support rod, thus improving the stability of the mounting plate.

[0028] Optionally, an auxiliary plate is provided on the tread and at the corner of the concrete column. The auxiliary plate includes two integrally formed inclined parts, which are respectively provided on the two sides of the concrete column. The inclined parts and the support plate are arranged in the same plane. The side of the inclined part is also provided with a slot for connecting with the support plate. The auxiliary plate is also provided with a slot for connecting with the support rod.

[0029] By adopting the above technical solution, auxiliary plates are set up to shield the corners of the concrete column, reducing the occurrence of impurities falling from the corners of the concrete column.

[0030] Optionally, a stabilizing plate is provided on the side of the auxiliary plate near the concrete column. The stabilizing plate is arranged vertically and abuts against the corner of the concrete column.

[0031] By adopting the above technical solution, the auxiliary plate abuts against the corners of the stabilizing plate and the concrete column, thereby improving the stability of the fit between the auxiliary plate and the concrete.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. Install a support plate and an installation plate between the tread and the concrete column. The installation plate and the support plate will cover the gap between the tread and the concrete column, reducing the occurrence of concrete impurities falling through the gap and reducing safety hazards. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application.

[0035] Figure 2 This is a partial view in an embodiment of this application.

[0036] Figure 3 This is a structural view of the receiving plate in the embodiment of this application.

[0037] Figure 4 This is a structural view of the mounting plate in an embodiment of this application.

[0038] Figure 5 This is a structural view of the shielding plate in an embodiment of this application.

[0039] Figure 6 This is a structural view of the abutment ring in an embodiment of this application.

[0040] Figure 7 This is a structural view of the auxiliary plate in the embodiment of this application.

[0041] Figure 8 This is a structural view of the stabilizing plate in an embodiment of this application.

[0042] Reference numerals: 1. Concrete column; 2. Suspended scaffold; 3. Step; 31. Support rod; 4. Support plate; 41. Outer plate; 411. Insert strip; 412. Fastener; 42. Inner plate; 5. Mounting plate; 51. Clip groove; 52. Opening; 53. Clearance groove; 6. Slot; 7. Cover plate; 71. Elastic element; 72. Guide surface; 8. Abutment ring; 9. Auxiliary plate; 91. Inclined part; 92. Stabilizing plate. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0044] This application discloses a method for removing columns on the outer side of a construction slab. The method for removing columns on the outer side of a construction slab includes the following steps:

[0045] Identify the location to be removed on concrete column 1;

[0046] Install suspended scaffolding 2 below the area to be excavated, install footboards 3 on the suspended scaffolding 2, and then lay protective netting on the outside of the scaffolding to shield and protect the area to be excavated.

[0047] The part to be chiseled away is chiseled away from top to bottom and from inside to outside. At the same time, the chiseled debris falls onto the pedal 3.

[0048] After the chiseling is complete, clean the debris on pedal 3;

[0049] Remove the suspended scaffolding 2 and then clean up the construction site.

[0050] Reference Figure 1 and Figure 2 The suspended scaffold 2 includes support rods 31 for installing footboards 3. Multiple support rods 31 are provided, and these rods are arranged around the concrete column 1. Multiple footboards 3 are also provided, each corresponding to a different side of the concrete column 1. Figure 3 The tread plate 3 and the concrete column 1 are spaced apart. A support plate 4 is installed on the tread plate 3. The support plate 4 is placed on the tread plate 3, and the side of the support plate 4 away from the tread plate 3 is inclined towards the concrete column 1 until it abuts against the side of the concrete column 1. This effectively blocks the gap between the tread plate 3 and the concrete column 1, reducing the occurrence of concrete debris falling through the gap between the tread plate 3 and the concrete column 1. At the same time, the support plate 4 transfers any debris that falls onto the support plate 4 back to the tread plate 3 for subsequent centralized cleaning.

[0051] Reference Figure 3 and Figure 4Multiple sets of support plates 4 are provided, each corresponding to multiple sides of the concrete column 1. Each set of support plates 4 includes multiple plates, arranged along the length of the side of the concrete column 1. Multiple mounting plates 5 are correspondingly provided on the step plate 3, also arranged along the length of the side of the concrete column 1. The support plates 4 are positioned between two adjacent support rods 31, and the mounting plates 5 are positioned between every two adjacent support plates 4, corresponding to the support rods 31. A groove 51 is formed in the mounting plate 5, with an opening 52 on the side of the groove 51 closest to the step plate 3. The mounting plate 5 is placed outside the support rod 31 through the groove 51, meaning the support rod 31 is placed inside the groove 51 through the opening 52 and abuts against the inner wall of the groove 51. Simultaneously, the mounting plate 5 abuts against the side of the concrete column 1, thus blocking the gap between two adjacent support plates 4 and reducing the possibility of impurities falling from the support rods 31.

[0052] Reference Figure 3 and Figure 4 A slot 6 is provided on the side of the mounting plate 5, and the slot 6 is located on the side of the mounting plate 5 near the receiving plate 4. The receiving plate 4 is fixed in the slot 6. The receiving plate 4 includes an outer plate 41 and an inner plate 42. The inner plate 42 is slidably disposed inside the outer plate 41. The outer plate 41 and the inner plate 42 are respectively connected to the mounting plate 5. An insert 411 is integrally provided on the side of the outer plate 41 away from the inner plate 42. The insert 411 is inserted into the slot 6. The side of the inner plate 42 away from the outer plate 41 is inserted into the slot 6. A fastener 412 for fixing the inner plate 42 is provided on the outer plate 41. The fastener 412 can be a bolt. The bolt and the outer plate 41 are threadedly connected. The end of the bolt passes through the outer rod and extends into the outer rod to abut against the side of the inner plate 42, thereby fixing the position of the inner plate 42. During installation, insert the insert 411 into the slot 6, then slide the inner plate 42 into the slot 6, and finally rotate the bolts until the inner plate 42 abuts against the side to fix the inner plate 42.

[0053] Reference Figure 4 and Figure 5The two inner walls of the retaining groove 51 are provided with relief grooves 53. A baffle plate 7 is disposed within each relief groove 53. The baffle plate 7 slides within the relief groove 53 in a direction opposite to the other relief groove 53, i.e., it slides along the direction inside the relief groove 53. An elastic element 71 is disposed within each relief groove 53. The elastic element 71 can be a spring. One end of the spring is connected to the inner wall of the relief groove 53, and the other end is connected to the baffle plate 7. The spring is used to drive the baffle plate 7 to slide towards the outside of the relief groove 53. A guide surface 72 is provided on the side of the baffle plate 7 near the opening 52, and the guide surface 72 is located on the side of the baffle plate 7 near the other baffle plate 7. In the initial state, the two baffle plates 7 abut against each other under the action of the elastic element 71. When placing the mounting plate 5, the opening 52 is positioned at the support rod 31, with the support rod 31 and guide surface 72 abutting against each other. As the mounting plate 5 continues to move, the shielding plate 7 moves into the clearance groove 53, simultaneously compressing the elastic element 71. After the retaining groove 51 is fully engaged with the support rod 31, the support rod 31 and the shielding plate 7 separate. Under the action of the elastic element 71, the shielding plate 7 moves to its initial position, shielding the retaining groove 51 and reducing the possibility of concrete impurities entering it, facilitating subsequent cleaning. Simultaneously, the shielding plate 7 moving to its initial position under the action of the elastic element 71 reduces the possibility of the support rod 31 and retaining groove 51 detaching, improving the stability of the fit between the mounting plate 5 and the support rod 31.

[0054] Reference Figure 5 and Figure 6 An abutment ring 8 is provided on the inner wall of the groove 51 on the side away from the opening 52. The abutment ring 8 is circular and faces the opening 52. After the support rod 31 moves into the groove 51, the side of the support rod 31 abuts against the inner side of the abutment ring 8. The center of the abutment ring 8 on the side away from the support rod 31 is rotatably positioned on the inner wall of the groove 51. This ensures that when the mounting plate 5 is placed, even if the tilt angle of the mounting plate 5 is different due to the different gaps between the pedal 3 and the concrete column 1, the abutment ring 8 can always rotate and maintain contact with the support rod 31, improving the stability of the fit between the mounting plate 5 and the support rod 31.

[0055] Reference Figure 3 and Figure 7 An auxiliary plate 9 is provided on the treadle 3, corresponding to the corner of the concrete column 1. The auxiliary plate 9 includes two integrally formed inclined parts 91, which correspond to the two adjacent sides of the concrete column 1, and the inclined parts 91 and the supporting plate 4 are arranged in the same plane. A slot 6 is also provided on the auxiliary plate 9, and the auxiliary plate 9 is connected to the supporting plate 4 through the slot 6. A fastening groove 51 is also provided on the auxiliary plate 9, and the auxiliary plate 9 is connected to the support rod 31 at the corner of the concrete column 1 through the fastening groove 51. The auxiliary plate 9 covers the gap at the corner of the concrete column 1, reducing the occurrence of concrete debris falling.

[0056] Reference Figure 7 and Figure 8 A stabilizing plate 92 is provided on the side of the auxiliary plate 9 near the concrete column 1. The stabilizing plate 92 is vertically positioned and abuts against the corner of the concrete column 1, improving the stability of the fit between the auxiliary plate 9 and the concrete column 1. In other embodiments, the end of the stabilizing plate 92 near the auxiliary plate 9 can be rotatably connected to the auxiliary plate 9. That is, when the gap between the pedal 3 and the concrete column 1 is different, resulting in different tilt angles of the auxiliary plate 9, the stabilizing plate 92 can remain in contact with the concrete column 1, facilitating installation while improving the stability of the fit between the auxiliary plate 9 and the concrete column 1.

[0057] The implementation principle of this application is as follows: by placing the mounting plate 5 and the receiving plate 4 between the tread 3 and the concrete column 1 in sequence, and at the same time installing the auxiliary plate 9 at the corner of the concrete column 1, the gap between the concrete column 1 and the tread 3 is blocked by the auxiliary plate 9, the mounting plate 5 and the receiving plate 4, thereby reducing the phenomenon of concrete debris falling to the ground when the concrete column 1 is being removed, and reducing safety hazards.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for removing columns on the outer side of a construction slab, characterized in that, Includes the following steps: Identify the location to be removed on the concrete column (1); Install a suspended scaffold (2) below the area to be excavated, install a footboard (3) on the suspended scaffold (2), and then lay a protective net on the outside of the suspended scaffold (2) to shield and protect the area to be excavated. The part to be chiseled is chiseled away, and the chiseling is done from top to bottom and from inside to outside. At the same time, the chiseled debris falls onto the pedal (3). After the chiseling is completed, clean up the debris on the pedal (3); Remove the suspended scaffolding (2) and then clean up the construction site; The suspended scaffold (2) includes support rods (31), and multiple support rods (31) are provided. Multiple support rods (31) are arranged around the concrete column (1). The treads (3) are installed on the support rods (31). The treads (3) and the sides of the concrete column (1) are spaced apart. The treads (3) are provided with support plates (4). One side of the support plates (4) is placed on the treads (3). The side of the support plates (4) away from the treads (3) is inclined in the direction towards the concrete column (1) and abuts against the side of the concrete column (1). The support plates (4) are used to cover the gap between the treads (3) and the concrete column (1). The receiving plate (4) is provided with multiple plates along the side length of the concrete column (1), and the pedal (3) is provided with multiple mounting plates (5). The multiple mounting plates (5) are arranged along the arrangement direction of the receiving plate (4). The mounting plate (5) is located between two adjacent receiving plates (4). The mounting plate (5) is connected to the receiving plate (4). The mounting plate (5) is provided with a groove (51). The groove (51) is provided with an opening (52) on the side near the pedal (3). The support rod (31) abuts against the inner wall of the groove (51) through the opening (52). The inner wall of the buckle groove (51) is provided with a relief groove (53), and a baffle plate (7) is provided in the relief groove (53). The baffle plate (7) is slidably disposed in the relief groove (53) in the direction toward the inside of the relief groove (53). An elastic element (71) is provided in the relief groove (53). The elastic element (71) and the baffle plate (7) are connected to drive the baffle plate (7) to slide in the direction toward the outside of the relief groove (53). A guide surface (72) is provided on the side of the baffle plate (7) away from the relief groove (53). The guide surface (72) is disposed near the opening (52). The baffle plate (7) is used to cover the buckle groove (51). An abutment ring (8) is provided on the inner wall of the groove (51) away from the opening (52). The abutment ring (8) is circular and is positioned towards the opening (52). The support rod (31) abuts against the inner side of the abutment ring (8). The abutment ring (8) is rotatably mounted on the inner wall of the buckle groove (51) on the side opposite to the opening (52); An auxiliary plate (9) is provided on the pedal (3) and at the corner of the concrete column (1). The auxiliary plate (9) includes two integrally set inclined parts (91). The two inclined parts (91) are respectively set on the two sides of the concrete column (1). The inclined parts (91) and the support plate (4) are set in the same plane. The side of the inclined part (91) is provided with a slot (6) for connecting with the support plate (4). The auxiliary plate (9) is also provided with a buckle (51) for connecting with the support rod (31). The auxiliary plate (9) is provided with a stabilizing plate (92) on the side near the concrete column (1). The stabilizing plate (92) is arranged in a vertical direction and abuts against the corner of the concrete column (1).

2. The method for removing columns on the outer side wall of the construction slab according to claim 1, characterized in that: The mounting plate (5) has a slot (6) on the side near the receiving plate (4), and the side of the receiving plate (4) is fitted into the slot (6).

3. The method for removing columns on the outer side wall of the construction slab according to claim 2, characterized in that: The receiving plate (4) includes an outer plate (41) and an inner plate (42). The inner plate (42) is slidably disposed within the outer plate (41). The outer plate (41) and the inner plate (42) are respectively connected to two adjacent receiving plates (4). An insert (411) is integrally disposed on the side of the outer plate (41) away from the inner plate (42). The insert (411) is inserted into the slot (6). The side of the inner plate (42) away from the outer plate (41) is inserted into the slot (6). A fastener (412) for fixing the inner plate (42) is disposed on the outer plate (41).

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