Rapid high-quality continuous wall scabbling method

Abstract

The invention discloses a rapid high-quality continuous wall scabbling method which comprises the following specific steps: S1, firstly, measuring and positioning a construction site of a subway continuous wall by using a total station or a theodolite; s2, underground pipeline data in the construction area are collected and comprise a pipeline diagram, a design drawing and construction records, then field exploration is conducted on the construction area, a supporting body is conveyed to the position where scabbling construction is needed through a moving vehicle, then a sliding block drives a sliding seat to move up and down, and the scabbling construction is completed; by means of the structural design that the chiseling saw blade can cut out uniform chiseling grooves in the side wall, the functions of higher efficiency and better effect of chiseling construction are achieved, and the problems that a layer of thickness on the surface of concrete is removed in a manual knocking mode, uniform chiseling textures are formed, and the chiseling effect is poor are effectively solved. The mode is suitable for small-area or local chiseling work, meanwhile, the working intensity is large, and manpower is consumed.

Description

Technical Field

[0001] The invention relates to the technical field of subway construction, in particular to a rapid and high-quality continuous wall roughening method. Background Art

[0002] In the construction of subway station foundation pit support, underground continuous wall is a commonly used support structure. The subway station foundation pit support continuous wall is a structure used to support the side wall of the foundation pit during the construction of the subway station. It is usually made of reinforced concrete and has the dual functions of retaining soil and isolating water. The construction of the continuous wall can ensure the stability of the soil around the foundation pit, while meeting the requirement of sufficient space for basement construction. This is a necessary condition for earth excavation and basement construction. It can not only provide stable support, but also has multiple effects such as water interception, anti-seepage, and environmental protection.

[0003] In the process of underground continuous wall construction, in order to ensure the adhesion of concrete, the underground continuous wall is usually roughened. Roughening is to treat the wall surface after concrete pouring to make it rough and uneven. The purpose of this is to increase the friction between the wall and the surrounding soil and improve the stability of the support structure. At the same time, roughening can also increase the surface area of ​​the wall, which is beneficial to the adhesion between the wall and the soil, thereby improving the overall performance of the support structure.

[0004] When roughening a continuous wall, tools such as hammers and chisels are usually used to remove a layer of concrete surface by manual knocking to form a uniform roughened texture. This method is suitable for small-area or local roughening work, but it is labor-intensive and labor-intensive.

[0005] To this end, the invention provides a rapid and high-quality continuous wall roughening method. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a fast and high-quality continuous wall roughening method described in the present invention, the specific steps of the roughening method are as follows: S1: First, use a total station or theodolite to measure and locate the construction site of the subway continuous wall; S2: Collect underground pipeline data in the construction area, including pipeline maps, design drawings, and construction records, and then conduct on-site surveys of the construction area to understand the surface conditions and possible pipeline signs; S3: According to the needs of construction, excavate or drill the construction site to expose underground pipelines, confirm the exposed pipelines, and record their location, depth, material, and diameter; S4: Excavate the location where the continuous wall needs to be constructed. During the excavation process, it is necessary to control the verticality and stability of the excavation side wall to avoid collapse, and pre-pour concrete to form a stable concrete support layer inside the excavation groove; S5: Use roughening equipment to roughen the side wall of the concrete support layer. After the roughening construction is completed, a steel cage is made at the construction site and hoisted into the excavation trench. Finally, concrete is poured into the excavation trench to complete the construction of the subway continuous wall.

[0008] Preferably, the roughening equipment in S5 includes a supporting body; a plurality of fixing holes are provided on the top of the supporting body; a sliding block is slidably connected inside the supporting body; a sliding seat is fixedly connected to the bottom of the sliding block; a fixed seat is fixedly connected to the top of the sliding block; a traction machine is installed on the top of the supporting body, and a winch drum is fixedly connected to the output end of the traction machine; a steel cable is wound on the winch drum; the end of the steel cable is fixedly connected to the top position of the fixed seat; a plurality of sliding frames are slidably connected inside the sliding seat; a roughening saw blade is installed inside the sliding frame; the rotation of the roughening saw blade is driven by a motor; uniform roughening grooves are left on the side wall, so that the roughening construction efficiency of the side wall is higher and the roughening quality is better.

[0009] Preferably, a plurality of cleaning nozzles are installed on the side wall of the supporting body; a water injection pipe is opened inside the supporting body; the water injection pipe is connected with the cleaning nozzle; so that subsequent construction procedures can proceed smoothly, and spraying water during the construction process can play a role in dust reduction.

[0010] Preferably, a plurality of scissor rods are rotatably connected to the top of the sliding seat; a threaded block is fixedly connected to the top of one end of the scissor rod away from the rotation point; a sliding frame is fixedly connected to the bottom of the intersection of the scissor rods; an adjusting screw is rotatably connected inside the sliding block; the adjusting screw is threadedly connected to the threaded block; the chiseling spacing can be adjusted according to needs during the roughening construction, making the chiseling operation more convenient and the effect of the roughening construction better.

[0011] Preferably, a plurality of universal wheels are installed at the bottom of the support body; the universal wheels are arranged at positions corresponding to the corners of the bottom surface of the support body, so that the movement of the support body is more convenient.

[0012] Preferably, a guide block is fixedly connected to the interior of the sliding seat; the sliding frame is slidably connected to the guide block; the sliding seat can be better kept perpendicular to the roughening surface, so that the roughening construction effect is better.

[0013] Preferably, a positioning block is fixedly connected to the side wall of the adjusting screw; the positioning block is rotatably connected to the inner position of the sliding block; this can make the adjusting screw less likely to tilt during rotation, making the rotation of the adjusting screw more stable.

[0014] Preferably, a plurality of anti-wear balls are provided between the positioning block and the sliding block; the side walls of the anti-wear balls are in contact with the side walls of the sliding block and the positioning block; the sliding friction between the sliding block and the positioning block can be converted into rolling friction, resulting in less wear between the sliding block and the positioning block.

[0015] The beneficial effects of the present invention are as follows: 1. The fast and high-quality continuous wall roughening method described in the present invention transports the supporting body to the position where roughening construction is required by a mobile vehicle, and then the sliding block drives the sliding seat to move up and down, so that the roughening saw blade can cut a uniform roughening groove on the side wall. The structural design realizes the function of making the roughening construction more efficient and more effective, and effectively solves the problem of removing a layer of thickness on the concrete surface by manual knocking to form a uniform roughening texture. This method is suitable for small-area or local roughening work, and at the same time has the problems of high work intensity and more labor consumption.

[0016] 2. The fast and high-quality continuous wall roughening method described in the present invention has a structural design in which a water injection pipe can be connected to a water injection pipe during the roughening construction process, and after the roughening construction is completed, water can be sprayed to the outside through a cleaning nozzle, thereby realizing the function of cleaning the dust, debris and loose concrete particles generated during the roughening construction process, ensuring the cleanliness of the construction surface, so as to facilitate the smooth progress of subsequent construction processes. Spraying water during the construction process can play a role in dust reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a method flow chart of the haircutting method in the present invention; Figure 2 is a three-dimensional diagram of the haircutting device of the present invention; Figure 3 It is a partial structural schematic diagram of the supporting body in the present invention; Figure 4 It is a partial structural schematic diagram of the sliding seat in the present invention; Figure 5 It is a partial structural schematic diagram of the supporting body in the present invention; Figure 6 It is a partial structural schematic diagram of the supporting body in the present invention; Figure 7 It is a schematic diagram of the partial structure of the supporting body in the present invention.

[0019] In the figure: 1. Support body; 2. Fixing hole; 3. Sliding block; 4. Wire drum; 5. Steel cable; 6. Sliding seat; 7. Fixing seat; 8. Sliding frame; 9. Chiseling saw blade; 10. Cleaning nozzle; 11. Water injection pipe; 12. Adjusting screw; 13. Threaded block; 14. Scissor rod; 15. Universal wheel; 16. Guide block; 17. Positioning block; 18. Anti-wear ball bearing. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figure 1 As shown, a fast and high-quality continuous wall roughening method according to an embodiment of the present invention has the following specific steps: S1: First, use a total station or theodolite to measure and locate the construction site of the subway continuous wall; S2: Collect underground pipeline data in the construction area, including pipeline maps, design drawings, and construction records, and then conduct on-site surveys of the construction area to understand the surface conditions and possible pipeline signs; S3: According to the needs of construction, excavate or drill the construction site to expose underground pipelines, confirm the exposed pipelines, and record their location, depth, material, and diameter; S4: Excavate the location where the continuous wall needs to be constructed. During the excavation process, it is necessary to control the verticality and stability of the excavation side wall to avoid collapse, and pre-pour concrete to form a stable concrete support layer inside the excavation groove; S5: Use roughening equipment to roughen the side wall of the concrete support layer. After the roughening construction is completed, a steel cage is made at the construction site and hoisted into the excavation trench. Finally, concrete is poured into the excavation trench to complete the construction of the subway continuous wall.

[0022] like Figure 3As shown, the haircutting device in S5 comprises a supporting body 1; a plurality of fixing holes 2 are provided on the top of the supporting body 1; a sliding block 3 is slidably connected inside the supporting body 1; a sliding seat 6 is fixedly connected to the bottom of the sliding block 3; a fixing seat 7 is fixedly connected to the top of the sliding block 3; a traction machine is installed on the top of the supporting body 1, and a winch drum 4 is fixedly connected to the output end of the traction machine; a steel cable 5 is wound on the winch drum 4; the end of the steel cable 5 is fixedly connected to the top position of the fixing seat 7; a plurality of sliding frames 8 are slidably connected inside the sliding seat 6; a haircutting saw blade 9 is installed inside the sliding frame 8; the haircutting saw blade 9 The rotation is driven by a motor; during operation, when it is necessary to roughen the side wall of the concrete support layer, the support body 1 can be fixed on a mobile vehicle, and then the mobile vehicle can be controlled to move to the position where the roughening is required, so that the roughening saw blade 9 is directed to the position of the side wall where the roughening is required, and then the winch drum 4 can be controlled to rotate, so that the winch drum 4 can adjust the height of the sliding block 3 by pulling the steel cable 5. In the process of the sliding block 3 moving up and down, the roughening saw blade 9 can be started, and a groove can be opened on the side wall through the cutting of the roughening saw blade 9, thereby leaving a uniform roughening groove on the side wall, so that the roughening construction efficiency of the side wall is higher and the quality of the roughening is better.

[0023] A plurality of cleaning nozzles 10 are installed on the side wall of the support body 1; a water injection pipe 11 is provided inside the support body 1; the water injection pipe 11 is connected to the cleaning nozzle 10; during operation, during the roughening construction process, the water injection pipe can be connected to the water injection pipe 11, and after the roughening construction is completed, water can be sprayed to the outside through the cleaning nozzle 10 to clean up the dust, debris and loose concrete particles generated during the roughening construction process, thereby ensuring the cleanliness of the construction surface and facilitating the smooth progress of subsequent construction processes. Spraying water during the construction process can play a role in dust reduction.

[0024] The top of the sliding seat 6 is rotatably connected to a plurality of scissor rods 14; a threaded block 13 is fixedly connected to the top of one end of the scissor rod 14 away from the rotation point; a sliding frame 8 is fixedly connected to the bottom of the intersection of the scissor rods 14; an adjusting screw 12 is rotatably connected inside the sliding block 3; the adjusting screw 12 is threadedly connected to the threaded block 13; during operation, when it is necessary to adjust the chiseling spacing, the adjusting screw 12 can be controlled to rotate, so that the adjusting screw 12 drives the threaded block 13 to move, so that the threaded block 13 can drive the scissor rods 14 to expand or retract, so that the plurality of sliding frames 8 can be adjusted to equal spacing, so that the chiseling spacing can be adjusted according to demand during chiseling construction, making the chiseling operation more convenient and the chiseling effect better.

[0025] A plurality of universal wheels 15 are installed at the bottom of the support body 1; the universal wheels 15 are arranged at positions corresponding to the corners of the bottom surface of the support body 1; when working, the support body 1 is supported by arranging the universal wheels 15 at the bottom of the support body 1, which can effectively avoid the wear of the support body 1 against the ground during the movement, making the movement of the support body 1 more convenient.

[0026] A guide block 16 is fixedly connected to the interior of the sliding seat 6; the sliding frame 8 is slidably connected to the guide block 16; during operation, when the sliding frame 8 slides inside the sliding seat 6, the sliding of the sliding frame 8 is limited by setting the guide block 16, so that the sliding frame 8 can be better kept stable during the sliding process, so that the sliding frame 8 can be better kept perpendicular to the roughening surface, so that the roughening construction effect is better.

[0027] A positioning block 17 is fixedly connected to the side wall of the adjusting screw 12; the positioning block 17 is rotatably connected to the internal position of the sliding block 3; during operation, during the rotation of the adjusting screw 12, the rotation of the positioning block 17 is limited by the sliding block 3, so that the adjusting screw 12 is less likely to tilt during rotation, making the rotation of the adjusting screw 12 more stable.

[0028] A plurality of anti-wear balls 18 are arranged between the positioning block 17 and the sliding block 3; the side walls of the anti-wear balls 18 are in contact with the side walls of the sliding block 3 and the positioning block 17; during operation, when the positioning block 17 rotates inside the sliding block 3, by arranging the anti-wear balls 18 between the sliding block 3 and the positioning block 17, the sliding friction between the sliding block 3 and the positioning block 17 can be converted into rolling friction, so that the wear between the sliding block 3 and the positioning block 17 is reduced.

[0029] During operation, when it is necessary to roughen the side wall of the concrete support layer, the support body 1 can be fixed on the mobile vehicle, and then the mobile vehicle can be controlled to move to the position where the roughening is required, so that the roughening saw blade 9 is facing the position of the side wall where the roughening is required, and then the winch drum 4 can be controlled to rotate, so that the winch drum 4 can adjust the height of the sliding block 3 by pulling the steel cable 5. In the process of the sliding block 3 moving up and down, the roughening saw blade 9 can be started, and a groove can be opened on the side wall through the cutting of the roughening saw blade 9, thereby leaving a uniform roughening groove on the side wall, so that the roughening construction efficiency of the side wall is higher and the quality of the roughening is better.

[0030] During the roughening construction process, the water injection pipe can be connected to the water injection pipe 11, and after the roughening construction is completed, water can be sprayed to the outside through the cleaning nozzle 10 to clean up the dust, debris and loose concrete particles generated during the roughening construction process, thereby ensuring the cleanliness of the construction surface and ensuring the smooth progress of subsequent construction processes. Spraying water during the construction process can play a role in dust reduction.

[0031] When the chiseling interval needs to be adjusted, the adjusting screw 12 can be controlled to rotate, so that the adjusting screw 12 drives the threaded block 13 to move, thereby the threaded block 13 drives the scissor rod 14 to expand or retract, so that the multiple sliding frames 8 can be adjusted to equal intervals, so that the chiseling interval can be adjusted according to the needs during the chiseling construction, making the chiseling operation more convenient and the chiseling construction effect better.

[0032] By providing a universal wheel 15 at the bottom of the support body 1 to support the support body 1, it is possible to effectively prevent the support body 1 from being worn against the ground during movement, making the movement of the support body 1 more convenient.

[0033] When the sliding frame 8 slides inside the sliding seat 6, the sliding of the sliding frame 8 is limited by setting the guide block 16, so that the sliding frame 8 can be better kept stable during the sliding process, so that the sliding frame 8 can be better kept perpendicular to the roughening surface, so that the roughening construction effect is better.

[0034] During the rotation of the adjusting screw 12 , the rotation of the positioning block 17 is limited by the sliding block 3 , so that the adjusting screw 12 is less likely to tilt during rotation, and the rotation of the adjusting screw 12 is more stable.

[0035] When the positioning block 17 rotates inside the sliding block 3, by arranging the anti-wear balls 18 between the sliding block 3 and the positioning block 17, the sliding friction between the sliding block 3 and the positioning block 17 can be changed into rolling friction, so that the wear between the sliding block 3 and the positioning block 17 is reduced.

Claims

1. A rapid and high-quality continuous wall roughening method, characterized in that: The specific steps of the chiseling method are as follows: S1: First, use a total station or theodolite to measure and locate the construction site of the subway continuous wall; S2: Collect underground pipeline data in the construction area, including pipeline maps, design drawings, and construction records, and then conduct on-site surveys of the construction area to understand the surface conditions and possible pipeline signs; S3: According to the needs of construction, excavate or drill the construction site to expose underground pipelines, confirm the exposed pipelines, and record their location, depth, material, and diameter; S4: Excavate the location where the continuous wall needs to be constructed. During the excavation process, it is necessary to control the verticality and stability of the excavation side wall to avoid collapse, and pre-pour concrete to form a stable concrete support layer inside the excavation groove; S5: Use roughening equipment to roughen the side wall of the concrete support layer. After the roughening construction is completed, a steel cage is made at the construction site and hoisted into the excavation trench. Finally, concrete is poured into the excavation trench to complete the construction of the subway continuous wall.

2. A fast and high-quality continuous wall roughening method according to claim 1, characterized in that: The haircutting device in S5 comprises a supporting body (1); a plurality of fixing holes (2) are provided on the top of the supporting body (1); a sliding block (3) is slidably connected inside the supporting body (1); a sliding seat (6) is fixedly connected to the bottom of the sliding block (3); a fixing seat (7) is fixedly connected to the top of the sliding block (3); a traction machine is installed on the top of the supporting body (1), and a winch drum (4) is fixedly connected to the output end of the traction machine; a steel cable (5) is wound on the winch drum (4); the end of the steel cable (5) is fixedly connected to the top position of the fixing seat (7); a plurality of sliding frames (8) are slidably connected inside the sliding seat (6); a haircutting saw blade (9) is installed inside the sliding frame (8); the rotation of the haircutting saw blade (9) is driven by a motor.

3. A fast and high-quality continuous wall roughening method according to claim 2, characterized in that: A plurality of cleaning nozzles (10) are mounted on the side wall of the support body (1); a water injection pipe (11) is provided inside the support body (1); and the water injection pipe (11) is in communication with the cleaning nozzles (10).

4. A fast and high-quality continuous wall roughening method according to claim 2, characterized in that: The top of the sliding seat (6) is rotatably connected to a plurality of scissor rods (14); a threaded block (13) is fixedly connected to the top of one end of the scissor rod (14) away from the rotation point; a sliding frame (8) is fixedly connected to the bottom of the intersection of the scissor rods (14); an adjusting screw (12) is rotatably connected inside the sliding block (3); and the adjusting screw (12) is threadedly connected to the threaded block (13).

5. A fast and high-quality continuous wall roughening method according to claim 3, characterized in that: A plurality of universal wheels (15) are installed at the bottom of the support body (1); the universal wheels (15) are arranged at positions corresponding to the corners of the bottom surface of the support body (1).

6. A fast and high quality continuous wall roughening method according to claim 4, characterized in that: A guide block (16) is fixedly connected inside the sliding seat (6); and the sliding frame (8) is slidably connected to the guide block (16).

7. A rapid and high-quality continuous wall roughening method according to claim 4, characterized in that: A positioning block (17) is fixedly connected to the side wall of the adjusting screw rod (12); the positioning block (17) is rotatably connected to an inner position of the sliding block (3).

8. A rapid and high-quality continuous wall roughening method according to claim 7, characterized in that: A plurality of anti-wear balls (18) are arranged between the positioning block (17) and the sliding block (3); the side walls of the anti-wear balls (18) are in contact with the side walls of the sliding block (3) and the positioning block (17).

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