CN111014819A - Reinforced concrete bottom plate cutting method based on wire saw process - Google Patents
Reinforced concrete bottom plate cutting method based on wire saw process Download PDFInfo
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- CN111014819A CN111014819A CN201911180936.6A CN201911180936A CN111014819A CN 111014819 A CN111014819 A CN 111014819A CN 201911180936 A CN201911180936 A CN 201911180936A CN 111014819 A CN111014819 A CN 111014819A
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- cutting
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- rope saw
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- wire saw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
- B23D57/0007—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 using saw wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
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- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a reinforced concrete bottom plate cutting method based on a wire saw process, which comprises the following steps of: 1) determining a reserved area and a cutting sideline according to the cutting range of the bottom plate, scribing a plurality of cutting lines in the cutting area surrounded by the cutting sideline, and determining the drilling position; 2) drilling at a drilling position by using a drilling machine, wherein the aperture is larger than the diameter of the directional wheel of the wire saw cutting device; 3) and cutting the reinforced concrete along the cutting line by using a wire saw cutting device, and moving the cut reinforced concrete block out of the cutting area by using a hoisting machine. The method breaks the reinforced concrete bottom plate by using the diamond wire saw process, and has the advantages of high dismantling speed, low noise and small influence on the structure in the dismantling process.
Description
Technical Field
The invention relates to the field of building construction, in particular to a reinforced concrete bottom plate cutting method based on a wire saw process.
Background
In recent years, the diamond wire saw is widely used for dismantling reinforced concrete beams, columns, side walls and roof components of buildings (structures). The cutting process of the diamond wire saw is a static force breaking process and has the following advantages: the influence on the structure in the dismantling process can be reduced; the operation is simple, and the dismantling speed is high; the building slag is broken and is easy to clean because the whole block is formed after the cutting is finished, and the cleaning speed is high; the deformation of the steel bar at the reserved part is small; meanwhile, the rope saw has low noise and less dust. In daily life, the structural bottom plate also needs to be dismantled, and the conventional diamond wire saw process is difficult to effectively dismantle the structure of the bottom plate.
At present, for the bottom plate breaking, the most adopted air compressor takes the mode such as air gun, takes crushing head excavator breakage, has following shortcoming: large vibration is broken, and the structure is greatly influenced; the air compressor has high requirements on the temporary capacitance, and the excavator has high requirements on the site space; the concrete blocks are broken into small blocks, and the cleaning is troublesome, so that the dismantling speed is slow; after the steel bars are broken, the deformation of the steel bars is large, the steel bars are not easy to straighten, and the construction progress of the steel bars at the later stage is slow; the noise is large, which is not beneficial to construction; large dust and difficult dust fall.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a reinforced concrete bottom plate cutting method based on a wire saw process.
The invention is realized by the following technical scheme:
a reinforced concrete bottom plate cutting method based on a wire saw process comprises the following steps:
1) determining a reserved area and a cutting sideline according to the cutting range of the bottom plate, scribing a plurality of cutting lines in the cutting area surrounded by the cutting sideline, and determining the drilling position;
2) drilling at a drilling position by using a drilling machine, wherein the aperture is larger than the diameter of the directional wheel of the wire saw cutting device;
3) and cutting the reinforced concrete along the cutting line by using a wire saw cutting device, and moving the cut reinforced concrete block out of the cutting area by using a hoisting machine.
In the step 1), the reserved area is determined according to the construction process of the steel bars in the later stage of the dismantling of the bottom plate, the reserved area is not needed if the steel bars are planted, and the reserved area is reserved according to the specification if welding and binding overlap joint are adopted.
Further, in step 1), the cutting area is divided into a plurality of cutting blocks by a plurality of cutting lines, the cutting blocks are polygonal, and the drilling positions are marked at each corner of the cutting blocks.
Further, in the step 2), the drilling depth is larger than the thickness of the reinforced concrete bottom plate structure layer by 150-250mm, and the drilling aperture is 350 mm.
Further, in the step 3), the wire saw cutting device vertically cuts the reinforced concrete block along the cutting line, and the cutting depth is consistent with the drilling depth.
According to the invention, before the rope saw construction, the cutting range of the bottom plate is divided into the reserved area and the cutting area according to the construction process of the steel bars in the later stage of the removal of the bottom plate, the steel bar construction in the later stage is facilitated, the steel bar concrete in the cutting area is divided into a plurality of cutting blocks through arranging cutting lines and drilling holes, the cutting blocks are conveniently cut one by one, the steel bar concrete is vertically cut along the cutting lines by using a rope saw cutting device, the cut steel bar concrete block is moved out of the cutting area by using a hoisting machine, the cutting of the steel bar concrete bottom plate is realized, and compared with the existing air compressor with the modes of air gun, excavator crushing with a crushing head and the like, the removal speed is high, the.
The utility model provides a rope saw cutting device, includes rail mounted rope saw cutting machine, adjustable pole setting, directional wheel and rope saw, be equipped with the drive wheel on the rail mounted rope saw cutting machine, adjustable pole setting is two, and adjustable pole setting can reciprocate, and adjustable pole setting top and bottom respectively set up a directional wheel, after the drive wheel was walked around to the rope saw, the directional wheel at two adjustable pole setting tops was walked around respectively at its both ends, then closed cyclization behind the directional wheel of two adjustable pole setting bottoms was walked around downwards to vertical, and two adjustable pole settings are in the drilling department at same line of cut both ends.
Furthermore, the adjustable vertical rod is connected with a fixed support, the fixed support is fixed on a reinforced concrete bottom plate at the drilling position, a through hole for the adjustable vertical rod and the directional wheel to pass through is formed in the middle of the fixed support, the through hole corresponds to the drilling hole below, and the adjustable vertical rod and the directional wheel at the bottom of the adjustable vertical rod move up and down along the through hole and the axis of the drilling hole under the action of an external driving device.
Furthermore, the rope saw between the directional wheels at the bottoms of the two adjustable vertical rods is contacted with and cuts the reinforced concrete bottom plate, and the adjustable vertical rods gradually move downwards under the action of an external driving device to drive the rope saw between the two directional wheels to cut the reinforced concrete below the cutting line.
The rope saw uses the directional wheel and two vertically arranged adjustable vertical rods as supports, a horizontal rope saw line is formed between the directional wheels at the bottoms of the two adjustable vertical rods, reinforced concrete in contact with the rope saw line is horizontally cut, linear grooves parallel to cutting lines are formed in the surface of the reinforced concrete, the height of each adjustable vertical rod is adjusted to drive the directional wheel and the horizontal rope saw line to vertically move downwards, the rope saw line cuts a vertical surface on the moving path of the rope saw line along with the slow vertical downward movement of the adjustable vertical rod and the rope saw line, the adjustable vertical rods are upwards lifted after the cutting of a single surface is finished, then the installation positions of the adjustable vertical rods are adjusted to cut the next surface, and a hoisting device is used for hoisting the cut reinforced concrete blocks after the cutting of a plurality of surfaces is finished.
Furthermore, the bottom of the rail type rope saw cutting machine is connected to the rail, the adjustable vertical rod is provided with a plurality of limiting devices, and the rope saw between the top of the adjustable vertical rod and the bottom directional wheel penetrates through the limiting devices.
In the invention, the rail type rope saw cutting machine adopts the existing equipment, the structure and the working principle are not described, the rail type rope saw cutting machine moves along the rail in the process that the rope saw cuts the reinforced concrete downwards so as to enable the whole rope saw to keep a cutting state, and the limiting stopper is used for preventing the diamond rope from being separated from the groove.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a reinforced concrete bottom plate cutting method based on a rope saw process, before the rope saw construction, the cutting range of a bottom plate is divided into a reserved area and a cutting area according to the construction process of steel bars at the later stage of bottom plate dismantling, the later-stage steel bar construction is convenient, the reinforced concrete in the cutting area is divided into a plurality of cutting blocks by arranging cutting lines and drilling holes in the cutting area, the blocks are conveniently cut one by one, the reinforced concrete is vertically cut along the cutting lines by using a rope saw cutting device, the cut reinforced concrete blocks are moved out of the cutting area by using a hoisting machine, the cutting of the reinforced concrete bottom plate is realized, compared with the existing modes that an air compressor is provided with an air gun, an excavator with a crushing head is crushed and the like, the dismantling speed is high, the noise is;
2. the invention relates to a rope saw cutting device, wherein a directional wheel and two vertically arranged adjustable vertical rods are used as supports of a rope saw, a horizontal rope saw wire is formed between the directional wheels at the bottoms of the two adjustable vertical rods, reinforced concrete in contact with the directional wheel is horizontally cut, linear grooves parallel to cutting lines are formed in the surface of the reinforced concrete, the directional wheel and the horizontal rope saw wire are driven to vertically move downwards by adjusting the height of the adjustable vertical rods, a vertical surface is cut on the moving path of the rope saw wire along with the slow vertical downward movement of the adjustable vertical rods and the rope saw wire, the adjustable vertical rods are lifted upwards after the cutting of a single surface is finished, and then the mounting positions of the adjustable vertical rods are adjusted to cut the next surface.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a sectional view of a wire saw cutting area of a steel bar in a bar planting mode;
FIG. 2 is a sectional view of a wire saw cutting area where the reinforcing steel bars are welded;
FIG. 3 is a sectional view of a rope saw cutting area where reinforcing steel bars are bound by a binding method;
FIG. 4 is a schematic view of the drilling machine of the present invention;
FIG. 5 is a layout view of the wire saw cutting apparatus of the present invention;
FIG. 6 is a schematic view of the wire saw cutting a reinforced concrete block of the present invention;
FIG. 7 is a schematic view showing the completion of cutting the reinforced concrete block of the present invention;
figure 8 is a schematic view of a reinforced concrete block of the present invention.
Reference numbers and corresponding part names in the drawings:
1-reserved area, 2-cutting sideline, 21-cutting line, 22-drilling hole, 23-reinforced concrete block, 24-cutting block, 3-rail type rope saw cutting machine, 31-driving wheel, 4-adjustable upright rod, 41-limiting stopper, 5-directional wheel, 6-rope saw, 7-fixed support and 8-rail.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1 to 4, the reinforced concrete base plate cutting method based on the wire saw process of the invention comprises the following steps:
1) determining a reserved area 1 and a cutting sideline 2 according to the cutting range of the bottom plate, scribing a plurality of cutting lines 21 in a cutting area surrounded by the cutting sideline 2, and determining the position of a drilling hole 22;
2) drilling a hole at the position of the drilled hole 22 by using a drilling machine, wherein the aperture is larger than the diameter of the directional wheel 5 of the wire saw cutting device;
3) the reinforced concrete is cut along the cutting line 21 by using a wire saw cutting device, and the cut reinforced concrete block 23 is moved out of the cutting area by using a hoisting machine.
In the step 1), the reserved area 1 is determined according to the construction process of the steel bars in the later stage of the dismantling of the bottom plate, the reserved area 1 is not needed if the steel bars are planted, and the reserved area 1 is reserved according to the specification if welding and binding overlap joint are adopted.
Further, in step 1), the cutting area is divided into a plurality of cutting blocks 24 by a plurality of cutting lines 21, the cutting blocks 24 are polygonal, and the positions of the drill holes 22 are marked at each corner of the cutting blocks 24.
Further, in the step 2), the depth of the drill hole 22 is larger than the thickness of the reinforced concrete bottom plate structure layer by 150 and 250mm, and the aperture of the drill hole 22 is 350 mm.
Further, in step 3), the wire saw cutting device vertically cuts the reinforced concrete block 23 along the cutting line 21, and the cutting depth is consistent with the depth of the drilling hole 22.
Example 2
As shown in fig. 5-7, a rope saw cutting device comprises a rail-mounted rope saw cutting machine 3, two adjustable vertical rods 4, two directional wheels 5 and a rope saw 6, wherein a driving wheel 31 is arranged on the rail-mounted rope saw cutting machine 3, the two adjustable vertical rods 4 can move up and down, the top and the bottom of each adjustable vertical rod 4 are respectively provided with one directional wheel 5, after the rope saw 6 bypasses the driving wheel 31, the two ends of the rope saw bypass the directional wheels 5 at the tops of the two adjustable vertical rods 4 respectively, then the rope saw vertically and downwards bypasses the directional wheels 5 at the bottoms of the two adjustable vertical rods 4 and then is closed into a ring, and the two adjustable vertical rods 4 are arranged at the drill holes 22 at the two ends of the same cutting.
Furthermore, the adjustable vertical rod 4 is connected with a fixed support 7, the fixed support 7 is fixed on the reinforced concrete bottom plate at the position of the drilling hole 22, a through hole for the adjustable vertical rod 4 and the directional wheel 5 to pass through is arranged in the middle of the fixed support 7, the through hole corresponds to the drilling hole 22 below, and the adjustable vertical rod 4 and the directional wheel 5 at the bottom of the adjustable vertical rod move up and down along the axis of the through hole and the drilling hole 22 under the action of an external driving device.
Further, the rope saw 6 between the directional wheels 5 at the bottoms of the two adjustable vertical rods 4 is contacted with and cuts the reinforced concrete bottom plate, and the adjustable vertical rods 4 gradually move downwards under the action of an external driving device to drive the rope saw 6 between the two directional wheels 5 to cut the reinforced concrete below the cutting line 21.
Furthermore, the bottom of the rail type rope saw cutting machine 3 is connected to a rail 8, the adjustable vertical rod 4 is provided with a plurality of limiting devices 41, and the rope saw 6 between the top of the adjustable vertical rod 4 and the bottom directional wheel 5 penetrates through the limiting devices 41.
In the division of the cutting line 21, the cutting size of the single reinforced concrete block 23 is limited by adopting a hoisting device to safely hoist, then a drilling machine is adopted to drill holes at four corners, the hole diameter is preferably set in a directional wheel, the rotatable size is reserved, the general hole diameter width is 350mm, and the cutting method adopts the method that
The drill bit is provided with a superposed hole, the drilling depth is preferably larger than the thickness of the bottom plate structure layer by 250mm, and if the depth cannot be determined by the thickness of the bottom plate structure layer, the depth is determined according to the soil quality in the drilled hole(ii) a The directional wheel set is fixed beside the drill hole, the rope saw is in place, and the directional wheel is adjusted into the drill hole; the rope saw cuts the bottom plate, and whether the bottom plate is cut is determined according to the scale of the directional wheel; the concrete blocks are mechanically hoisted and cut and transported to a specified place to be processed, and the concrete blocks can be constructed in a flowing manner according to the cutting condition, so that the cutting construction cannot be influenced in principle.
As shown in fig. 8, the cut reinforced concrete block 23 is subjected to air gun to break the upper protective layer of the concrete block, so as to expose the main reinforcement, which serves as a hoisting action point.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A reinforced concrete bottom plate cutting method based on a wire saw process is characterized by comprising the following steps:
1) determining a reserved area (1) and a cutting sideline (2) according to the cutting range of the bottom plate, scribing a plurality of cutting lines (21) in the cutting area surrounded by the cutting sideline (2), and determining the position of a drilling hole (22);
2) drilling a hole at the position of the drill hole (22) by using a drilling machine, wherein the aperture is larger than the diameter of the directional wheel (5) of the wire saw cutting device;
3) and cutting the reinforced concrete along the cutting line (21) by using a wire saw cutting device, and moving the cut reinforced concrete block (23) out of the cutting area by using a hoisting machine.
2. The method for cutting the reinforced concrete base plate based on the wire saw process as claimed in claim 1, wherein in the step 1), the reserved area (1) is determined according to the construction process of the steel bars at the later stage of dismantling the base plate, if the steel bars are embedded with steel bars, the reserved area (1) is not needed, and if welding and binding overlapping are adopted, the reserved area (1) is reserved according to the specification.
3. The method for cutting a reinforced concrete floor based on a wire saw process as claimed in claim 1, wherein in the step 1), the cutting area is divided into a plurality of cutting blocks (24) by a plurality of cutting lines (21), the cutting blocks (24) are polygonal, and the positions of the drill holes (22) are marked at the corners of the cutting blocks (24).
4. The method for cutting the reinforced concrete base plate based on the wire saw process as claimed in claim 1, wherein in the step 2), the depth of the drill hole (22) is greater than the thickness of the structural layer of the reinforced concrete base plate by 150 mm and 250mm, and the aperture of the drill hole (22) is 350 mm.
5. The reinforced concrete floor cutting method based on the wire saw process as claimed in claim 1, wherein in the step 3), the wire saw cutting device vertically cuts the reinforced concrete block (23) along the cutting line (21) to a depth consistent with the depth of the drilled hole (22).
6. The utility model provides a rope saw cutting device, its characterized in that, includes rail mounted rope saw cutting machine (3), adjustable pole setting (4), directional wheel (5) and rope saw (6), be equipped with drive wheel (31) on rail mounted rope saw cutting machine (3), adjustable pole setting (4) are two, and adjustable pole setting (4) can reciprocate, and adjustable pole setting (4) top and bottom respectively set up a directional wheel (5), after drive wheel (31) was walked around in rope saw (6), directional wheel (5) at two adjustable pole setting (4) tops were walked around respectively at its both ends, then vertical closed cyclization after directional wheel (5) of walking around two adjustable pole setting (4) bottoms down, and two adjustable pole setting (4) set up drilling (22) departments at same line of cut (21) both ends.
7. A cord saw cutting device as claimed in claim 6, characterized in that the adjustable vertical rod (4) is connected with a fixed support (7), the fixed support (7) is fixed on the reinforced concrete bottom plate at the position of the drill hole (22), a through hole for the adjustable vertical rod (4) and the directional wheel (5) to pass through is arranged in the middle of the fixed support (7), the through hole corresponds to the drill hole (22) below, and the adjustable vertical rod (4) and the directional wheel (5) at the bottom of the adjustable vertical rod move up and down along the axis of the through hole and the drill hole (22) under the action of an external driving device.
8. A rope saw cutting device according to claim 7, characterized in that the rope saw (6) between the orientation wheels (5) at the bottom of the two adjustable vertical rods (4) is in contact with the reinforced concrete bottom plate and cuts the reinforced concrete, and the adjustable vertical rods (4) are gradually moved downwards under the action of an external driving device to drive the rope saw (6) between the two orientation wheels (5) to cut the reinforced concrete below the cutting line (21).
9. A rope saw cutting device as defined in claim 6, characterized in that the rail-mounted rope saw cutting machine (3) is attached to the rail (7) at the bottom, the adjustable upright (4) is provided with a number of stoppers (41), and the rope saw (6) between the top and the bottom orientation wheels (5) of the adjustable upright (4) passes through the stoppers (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911180936.6A CN111014819A (en) | 2019-11-27 | 2019-11-27 | Reinforced concrete bottom plate cutting method based on wire saw process |
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| CN201911180936.6A CN111014819A (en) | 2019-11-27 | 2019-11-27 | Reinforced concrete bottom plate cutting method based on wire saw process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546506A (en) * | 2020-05-18 | 2020-08-18 | 中亿丰建设集团股份有限公司 | Underwater reinforced concrete slab cutting method |
| CN111910538A (en) * | 2020-07-02 | 2020-11-10 | 中铁六局集团有限公司 | Construction method for dismantling existing frame bridge by using rope saw reverse cutting method |
| CN115464783A (en) * | 2022-08-16 | 2022-12-13 | 北京首钢建设集团有限公司 | Static comprehensive cutting method for existing building |
| JP7496739B2 (en) | 2020-08-24 | 2024-06-07 | 日本製鉄株式会社 | A method for removing solidified pig iron lumps in a torpedo car |
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| CN115464783A (en) * | 2022-08-16 | 2022-12-13 | 北京首钢建设集团有限公司 | Static comprehensive cutting method for existing building |
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Application publication date: 20200417 |
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