Construction method of high-precision concrete floor expansion joint recyclable positioning system

Abstract

The invention relates to a construction method of a high-precision concrete floor expansion joint recyclable positioning system. The method comprises eleven construction steps: construction zoning and expansion joint positioning, foundation cushion drilling, movable armor joint design and processing, recycling positioning system processing and installation, movable armor joint component installation, first pouring area floor thickness controller processing and installation, first pouring area concrete pouring, floor thickness controller removal and mortar caulking treatment, recycling positioning system removal, post-pouring area floor thickness controller installation, post-pouring area concrete pouring and caulking. A novel movable armor joint structure is proposed, and during the construction process, a recycling positioning system and a floor thickness controller are used to achieve high-precision construction of the floor. The recycling positioning system and the floor thickness controller are recyclable, thereby reducing material loss.

Description

Technical Field

[0001] The invention relates to concrete floor construction, and in particular to a construction method of a high-precision concrete floor expansion joint recyclable positioning system. Background Art

[0002] Ultra-large area and high-precision flooring is the trend in the field of engineering construction. More and more factory projects use armored seams for splitting seams to reduce the occurrence of later cracks, extend service life and reduce later maintenance costs.

[0003] However, existing armored seam construction still faces the following challenges: 1. The armored seam structure itself has defects. For example, patent application CN202122543456.0 discloses a protective armored seam structure comprising a first formwork, a second formwork, and a compartmentalized seam formwork, wherein a plurality of second shear anchor bolts are fixed in sequence along the length of the second formwork, a plurality of first shear anchor bolts are fixed in sequence along the length of the first formwork, and the compartmentalized seam formwork is vertically fixed to the bottom of the first formwork. There are no protective measures on either side of the expansion joint, and the concrete at the top edge of the armored seam is prone to cracking and peeling. Furthermore, the armored seam runs through the top and bottom, and dust or debris easily accumulates within the seam. To ensure the integrity of the armored seam and the cast-in-place floor, welded shear anchor bolts are installed on both the first and second formworks, resulting in low welding efficiency and difficulty in fabricating the armored seam. The foundation cushion layer is uneven, and if the armored seam is placed directly on the foundation cushion layer, casting defects are likely to occur, and levelness is likely to be unsatisfactory at the armored seam joints. Existing applications do not address this issue.

[0004] 2. The construction site needs to position and support the floor armor seam. The existing floor armor seam positioning device has defects such as weak support and inaccurate positioning; Patent application CN202011319311.6 discloses an armor seam positioning device and its construction method, including a support base, an adjusting rod fixedly installed on the top surface of the support base, the adjusting rod including a vertical fixed rod and a sliding rod, the fixed rod is provided with a slide groove on the side away from the armor seam, and a sealing gasket is provided on the top. The sliding rod is slidably sleeved on the top of the fixed rod, and a ball screw is passed through the rod body. The screw shaft of the ball screw is rotatably connected to the sealing gasket, and the sliding rod and the ball nut of the ball screw are connected as a whole by a connecting bolt, the middle of the connecting bolt is passed through the slide groove, and a supporting rod is installed on the side of the sliding rod close to the armor seam. The supporting rod is passed through the socket hole of the armor seam to support the armor seam to the designed elevation, which can conveniently realize real-time, continuous and rapid adjustment of the horizontal and vertical positions of the armor seam, and can be used in rotation. However, it relies on a single supporting rod to support the armor seam to the designed elevation, which is prone to tilting. Especially after repeated use, the adjusting rod will shake due to the up and down adjustment, and the initial tilt deviation of the positioning device will easily affect the installation accuracy of the armor seam; and the support base cannot adapt to the unevenness of the foundation cushion layer, which may easily lead to uneven overlap, tilt and misalignment at the splicing; in construction step six, positioning steel bars need to be installed on the other side, which is complicated to construct and prone to waste of positioning steel bars.

[0005] 3. Floor construction needs to ensure thickness accuracy. The traditional pre-buried disposable floor thickness controller or the use of laser with tower ruler cannot be fine-tuned during the pouring and finishing process, and the pouring accuracy cannot meet the requirements. In addition, the use of disposable floor controllers requires repeated input of materials and wastes materials. Summary of the Invention

[0006] The purpose of the present invention is to address the problems existing in the construction of high-precision concrete floors, and to propose a construction method for a recyclable positioning system for high-precision concrete floor expansion joints, which adopts the following technical solutions.

[0007] The construction method of the high-precision concrete floor expansion joint recyclable positioning system includes the following steps:

[0008] S1. Construction zoning and expansion joint positioning: Arrange expansion joints according to construction requirements, lay out lines on the foundation cushion to complete the expansion joint positioning, and set the first pouring area and the last pouring area.

[0009] S2. Drilling holes in the foundation cushion: Drill fixing bolt holes on the left and right sides of the expansion joint for the subsequent recovery positioning system and floor thickness controller fixation.

[0010] S3. Design and processing of movable armor seams: S3.1. The movable armor seam consists of two parts: a movable plate and a fixed plate. The movable plate is located on the side of the first pouring area, and the fixed plate is located on the side of the later pouring area; S3.2. The movable plate is made, including a vertical plate, a corner plate, an embedded plate and a horizontal movable plate. The top of the vertical plate is connected to the horizontal corner plate and the oblique embedded plate. Embedding holes are arranged at intervals on the embedded plate, and a horizontal movable plate is arranged on the other side of the vertical plate, and force transmission rod holes and plastic bolt holes are arranged at intervals along the length direction on the bottom of the movable plate vertical plate, and fixed plate bolt holes are arranged at intervals along the length direction on the corner plate; S3.3. The fixed plate is made, including a vertical plate, a corner plate, an embedded plate and a horizontal movable groove. The top of the vertical plate is provided with a horizontal movable groove, and the top of the horizontal movable groove is connected to the horizontal corner plate and the oblique embedded plate Fixed plate, a flexible plate is set at the bottom of the fixed plate, and the horizontal corner plate and the oblique embedded plate are connected to the upper part of the flexible plate, and the middle part of the vertical plate of the fixed plate is provided with force transfer rod holes and plastic bolt holes at intervals along the length direction, the embedded plate is provided with embedded holes at intervals, and the upper and lower corner plates are provided with fixed plate bolt holes at intervals along the length direction; S3.4, the force transfer rod and the telescopic sleeve are welded at the position of the force transfer rod hole on the movable plate and the fixed plate, and the telescopic sleeve and the horizontal moving groove are filled with lubricant; S3.5, the horizontal moving plate on the movable plate is inserted into the horizontal moving groove of the fixed plate, and the force transfer rod is inserted into the corresponding telescopic sleeve. A spacing of 10~20mm is set between the movable plate and the fixed plate as required, and plastic bolts are installed at the plastic bolt hole position between the two to connect them into a whole.

[0011] S4. Processing and installation of recovery positioning system: S4.1. The recovery positioning system consists of an adjustment base plate, a vertical square column, an expanded top plate, a diagonal brace and a movable block; the four corners of the adjustment base plate are provided with adjustment knobs, which can adapt to the unevenness of the foundation cushion after adjustment. The adjustment base plate and the expanded top plate are connected by a diagonal brace. The movable block is a square tube component, and a connecting plate and an inclined plate are provided on the side of the fixed movable armor seam. The adjustment rod is moved up and down on the square column to adapt to the installation and fixation of movable armor seams of different sizes, and is fixed by the anchor nut and the fixing knob at the end of the adjustment rod; S4.2. The recovery positioning system is installed on the side of the post-casting area of the expansion joint, and the adjustment knobs at the four corners of the bottom of the adjustment base plate are rotated to make the adjustment base plate in a horizontal state. The recovery positioning system is fixed with long bolts to fix the adjustment base plate to the foundation cushion.

[0012] S5. Installation of movable armor seam components: S5.1. Lift the movable block on the square column to the bottom of the expanded top plate and temporarily fix the adjustment rod with an anchor nut; S5.2. Hoist the movable armor seam onto the recovery and positioning system. The bottom corner guard of the fixed plate is fixed to the fixing hole of the adjustment bottom plate by the fixing plate bolts, so that its lower end is fixed; S5.3. Move the adjusting rod so that the connecting plate of the movable block clamps the top corner guard of the fixed plate. The inclined plate of the movable block presses the inclined embedded plate on the fixed plate. The top corner guard of the fixed plate is fixed to the fixing hole of the connecting plate by the fixing plate bolts, so that its upper end is fixed; S5.4. Adjust and fix the recovery and positioning system arranged at intervals along the length direction of the movable armor seam to complete the installation of the movable armor seam.

[0013] S6. Processing and installation of floor thickness controller in the pouring area first: S6.1. The floor thickness controller consists of a fixed base plate, a conical cylinder, a cylinder clamping plate, an inner sleeve screw rod, and a fine-tuning screw. A screw rod hole with a thread is provided in the center of the fixed base plate, anchor holes are provided at the four corners of the fixed base plate, and vertical triangular plates are provided around the screw rod hole, and the triangular plates are provided with embedding holes; an anti-slip wire is provided at the bottom of the conical cylinder, and a symmetrical clamping block is provided at the top. A clamping block groove corresponding to the clamping block and a screw rod hole without a thread are provided on the cylinder clamping plate. A rotating nut is provided on the top of the inner sleeve screw rod, and a screw hole is provided inside the rotating nut. The screw hole matches the diameter of the fine-tuning screw, and a hexagonal hole is provided inside the fine-tuning screw for easy adjustment. Adjust the elevation; S6.2. Place the cylinder clamping plate into the cone, and the cylinder clamping plate block groove corresponds to the cone clamping plate, and the cylinder clamping plate is limited to the equal diameter of the cone; S6.3. The bottom of the inner sleeve screw rod passes through the screw rod hole of the cylinder clamping plate, and the inner sleeve screw rod and the cone are fixedly connected by anti-slip wire, and the inner sleeve screw rod extends out of the bottom of the cone; S6.4. The bottom of the inner sleeve screw rod is fixed in the screw rod hole of the fixed base plate to form a whole, and a fine-tuning screw is installed in the screw hole at the top of the inner sleeve screw rod; S6.5. Fix the assembled floor thickness controller to the side of the first pouring area of the expansion joint with a short bolt, and after adjustment, the top of the floor thickness controller is consistent with the high-precision floor elevation.

[0014] S7. Concrete pouring in the first pouring area: Concrete is poured in the first pouring area, and the screws are fine-tuned according to the floor thickness controller for initial leveling. Subsequently, multiple refined leveling processes are carried out according to the steps of leveling → measuring the floor thickness controller → scraping → re-measuring the floor thickness controller, and maintenance is carried out to complete the high-precision floor construction in the first pouring area;

[0015] S8. Remove the floor thickness controller and fill the gaps with mortar: S8.1. Remove the top fine-tuning screw, and then use a hexagonal wrench to completely remove the inner screw rod. The cone cylinder is separated from the fixed base plate. The cone cylinder is rotated through the internal block of the cone cylinder to separate the cone cylinder from the high-precision floor, and then the cone cylinder is removed; S8.2. A conical groove is formed at the floor thickness controller of the high-precision floor, which is filled with micro-expansion cement slurry.

[0016] S9. Dismantle the recovery positioning system: After the high-precision floor in the first pouring area reaches the required strength, remove the fixing plate bolts on the upper and lower ends of the fixing plate in the second pouring area, separate the recovery positioning system from the movable armor seam, and then remove the long bolts used to fix the recovery positioning system. Separate the recovery positioning system from the foundation cushion layer, and complete the removal of the recovery positioning system.

[0017] S10, installation of floor thickness controller in post-pouring area: install the floor thickness controller in post-pouring area through short bolts at the bolt hole position of the positioning system in post-pouring area. The installation steps are the same as S6.

[0018] S11. Concrete pouring and caulking in the post-pouring area: Pour high-precision floor concrete in the post-pouring area, with the same steps as S7; after reaching the required strength, remove the floor thickness controller in the post-pouring area, and fill the conical groove with micro-expansion cement slurry, with the same steps as S8, until the high-precision floor construction in all areas is completed.

[0019] Preferably, in said S1, the first pouring area and the later pouring area are arranged at intervals, and the high-precision floor on the adjacent sides of the expansion joint meets the skipping construction process.

[0020] Preferably, in said S2, the fixing bolt holes include positioning system bolt holes and thickness controller bolt holes, the positioning system bolt holes are only located on the side of the post-pouring area, and serve as thickness controller bolt holes when high-precision floor pouring is carried out in the post-pouring area.

[0021] Preferably, in the above-mentioned S3, fixing plate bolt holes are provided at intervals on the corner guard plate of the fixing plate, and the height of the flexible plate at the bottom of the fixing plate is 10~20mm. It adapts to the unevenness of the foundation cushion through slight deformation, and acts as a template to fill the gap between the first pouring area and the foundation; the plastic bolts break after the high-precision floor in the first pouring area and the later pouring area reaches strength and shrinks, and the fixed connection between the movable plate and the fixed plate is disconnected.

[0022] Preferably, in the aforementioned S4 and S5, fixing holes and anchor holes are provided on the adjustment bottom plate of the recovery positioning system, and an adjustment rod hole is provided on the expanded top plate; a fixing hole corresponding to the bolt hole of the movable armor seam fixing plate is provided on the connecting plate of the movable block, the inclined plate and the embedded plate have the same inclination angle and can fit tightly, a knob hole is provided on the opposite side of the contact surface between the square tube and the connecting plate, and a fixing knob is installed; one end of the adjusting rod is fixed to the ear plates on both sides of the square tube of the movable block, and the other end passes through the adjusting rod hole of the expanded top plate and is fixed by an anchor nut.

[0023] Preferably, in the above S6, the anchor holes on the fixed bottom plate of the floor thickness controller correspond to the positions of the anchor holes on the bottom plate adjusted by the recovery positioning system.

[0024] Preferably, in S7 and S10, the floor thickness controllers are arranged in a plum blossom shape with an interval of 1m.

[0025] Preferably, in S8 and S11, after the floor thickness controller is removed, the fixed base plate is left in the high-precision floor, and the conical cylinder, cylinder clamping plate, inner sleeve screw rod, and fine-tuning screw components are recovered for subsequent construction.

[0026] Preferably, in said S9, all components of the recycling and positioning system can be dismantled and recycled.

[0027] The technical solution of the present invention has the following beneficial effects compared with the traditional technology:

[0028] 1. Setting a corner guard plate at the top of the movable armor seam can solve the problem of concrete cracking and peeling at the top edge of the armor seam. The design of the embedded plate and embedded hole can reduce the number of shear anchor bolts welded, improve the production efficiency of the movable armor seam, improve construction efficiency, and shorten the construction period.

[0029] 2. A horizontal movable plate and a horizontal movable groove are set at the top of the movable armored seam to reduce the accumulation of dust or debris in the seam; a flexible plate is set at the bottom of the movable armored seam to adapt to the unevenness of the foundation cushion through slight deformation, and act as a template to fill the gap between the first pouring area and the foundation, ensuring the quality of concrete floor pouring and the installation accuracy of the movable armored seam.

[0030] 3. A recycling positioning system is used to assist in the installation of the movable armor seam, which is fixed by double fixing plate bolts at the top and bottom, and clamped with the oblique inclined plate. The adjustment knob at the bottom can adapt to the unevenness of the foundation cushion layer, effectively ensuring the installation accuracy of the movable armor seam during the floor pouring process.

[0031] 4. The recycling positioning system can be dismantled and reused, without the need for additional positioning steel bars and material loss. The movable block design can be used for the installation of movable armor seams of different heights and models, with a wide range of applications.

[0032] 5. The use of floor thickness controller can achieve secondary and tertiary fine-tuning, which can ensure that the accuracy of the floor structure reaches the requirements, greatly improving the construction quality and efficiency. In addition, the floor thickness controller can be removed and recycled except for the fixed base plate, reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the recyclable positioning system structure for the expansion joints of the high-precision concrete floor in the first pouring area;

[0034] Figure 2 This is a schematic diagram of the structure of the fixed movable armor seam of the recycling positioning system;

[0035] Figure 3 It is a side view of the recycling positioning system;

[0036] Figure 4 This is a schematic diagram of the lowest point of the adjustment rod of the recycling positioning system (applicable to the smallest movable armor seam);

[0037] Figure 5 This is a schematic diagram of the highest point of the adjustment rod of the recycling positioning system (applicable to the largest movable armor seam);

[0038] Figure 6 This is a schematic diagram of the connection between the base plate, square columns and diagonal braces adjusted by the recycling positioning system;

[0039] Figure 7 It is a schematic diagram of the activity block structure;

[0040] Figure 8 This is a side view of the movable armor seam movable plate;

[0041] Figure 9 This is a side view of the movable armor seam fixing plate;

[0042] Figure 10 This is the cross-sectional view of the movable armor seam force transmission rod-telescopic sleeve ( Figure 9 Middle AA section);

[0043] Figure 11 This is the cross-section of the plastic bolt of the movable armor seam ( Figure 9 Middle BB cross-section);

[0044] Figure 12 This is the cross-sectional view of the plastic bolt hole of the movable plate ( Figure 8 (Section 1-1);

[0045] Figure 13 This is the cross-sectional view of the movable plate dowel rod ( Figure 8 Section 2-2);

[0046] Figure 14 This is a cross-sectional view of the plastic bolt hole of the fixing plate ( Figure 9 Section 3-3);

[0047] Figure 15 This is the cross-sectional view of the fixed plate telescopic sleeve ( Figure 9 (section 4-4 in the middle);

[0048] Figure 16 This is a schematic diagram of the floor thickness controller structure;

[0049] Figure 17 This is a schematic diagram of the fixed base plate structure of the floor thickness controller;

[0050] Figure 18 This is a schematic diagram of the structure of the screw rod inside the floor thickness controller;

[0051] Figure 19 This is a schematic diagram of the fine-tuning screw structure of the floor thickness controller;

[0052] Figure 20 This is a schematic diagram of the cone structure of the floor thickness controller;

[0053] Figure 21 This is a schematic diagram of the cross section of the cone cylinder of the floor thickness controller;

[0054] Figure 22 This is a schematic diagram of the floor thickness controller cylinder card structure;

[0055] Figure 23 This is a schematic diagram of the connection between the fixed base plate, the inner sleeve screw rod, and the fine-tuning screw;

[0056] Figure 24 This is a construction diagram of step S5;

[0057] Figure 25 This is a construction diagram of step S7;

[0058] Figure 26 This is a construction diagram of step S8;

[0059] Figure 27 This is a construction diagram of step S9;

[0060] Figure 28 This is a construction diagram before the floor thickness controller is removed in step S11;

[0061] Figure 29 This is a schematic diagram of the construction of micro-expansion cement slurry after the floor thickness controller is removed in step S11.

[0062] Markings in the figure: 1-high-precision floor, 2-micro-expansion cement slurry, 3-movable armor seam, 301-movable plate, 302-fixed plate, 303-vertical plate, 304-corner guard, 305-horizontally movable plate, 306-horizontally movable groove, 307-embedded plate, 308-embedded hole, 309-flexible plate, 3011-fixed plate bolt hole, 3012-plastic bolt hole, 4-plastic bolt, 5-force transmission rod, 6-telescopic sleeve, 7-lubricant, 8-recovery positioning system, 801-adjustment base plate, 802-adjustment knob, 803-square column, 804-expanded top plate, 805-fixed hole, 806-anchor hole, 807-diagonal support rod, 808-adjustment rod, 809-movable block, 8091-square tube, 8092-connecting plate , 8093-ear plate, 8094-tilt plate, 8095-fixed knob, 8096-knob hole, 8010-adjustment rod hole, 9-floor thickness controller, 901-fixed base plate, 902-triangular plate, 903-conical cylinder, 904-anti-slip wire, 905-cylinder clamping plate, 906-inner screw rod, 907-rotating nut, 908-screw hole, 909-fine-tuning screw, 9010-hexagonal hole, 9011-screw rod hole, 9012-block, 9013-block slot, 10-foundation cushion, 11-fixing bolt, 1101-long bolt, 1102-short bolt, 1103-fixing plate bolt, 12-weld seam, 13-anchor nut, 14-fixing bolt hole, 1402-thickness controller bolt hole. DETAILED DESCRIPTION

[0063] In order to deepen the understanding of the present invention, the following reference will be made to Figures 1 to 29 , the embodiments of the present invention are described in detail. The following embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation methods are given, but the protection scope of the present invention is not limited to the following embodiments.

[0064] In this embodiment, the high-precision floor 1 is 200 mm thick, and the movable armor seam 3 is 15 mm wide. The movable plate 301 is 110 mm high, the fixed plate 302 is 190 mm high, the flexible plate 309 is 10 mm high, the angle guards 304 on both sides are 30 mm long, and a fixed plate bolt hole 3011 is set on the angle guard 304 at intervals of 1.5 m, that is, the recovery and positioning system 8 is set every 1.5 m, the horizontal movable plate 305 extends for 30 mm, and the vertical plate 303 is provided with a plastic bolt 4 at intervals of 200 mm along the length direction, and a force transmission rod 5 is set between every two plastic bolts 4, and the spacing is 200 mm; the square column 803 of the recovery and positioning system 8 is 350 mm high, which can realize the positioning and installation of the movable armor seam 3 with a height of 300 mm.

[0065] The construction method of the high-precision concrete floor expansion joint recyclable positioning system includes the following steps.

[0066] S1. Construction zoning and expansion joint positioning: Combined with the attached Figure 24 As shown, expansion joints are arranged according to construction requirements, lines are laid out on the foundation cushion layer 10 to complete the expansion joint positioning, and the first pouring area and the last pouring area are set; the first pouring area and the last pouring area are arranged at intervals, and the high-precision floor 1 on the adjacent side of the expansion joint meets the skipping construction process.

[0067] S2, drilling of foundation cushion layer 10: Figure 24 As shown, fixing bolt holes 14 are drilled on both sides of the expansion joint for subsequent recovery of the positioning system 8 and the fixing of the floor thickness controller 9; the fixing bolt holes 14 include positioning system bolt holes and thickness controller bolt holes 1402, and the positioning system bolt holes are only located on the side of the post-casting area, and then combined with the attached Figure 27 As shown, the positioning system bolt holes serve as thickness controller bolt holes 1402 when pouring the high-precision floor 1 in the post-pouring area.

[0068] S3, design and processing of movable armor seam 3: combined with the attached Figure 10 , Attachment Figure 11 , Attachment Figure 27 As shown in S3.1, the movable armor seam 3 includes a movable plate 301 and a fixed plate 302. The movable plate 301 is located on the side of the first pouring area, and the fixed plate 302 is located on the side of the later pouring area. Figure 8 , Attachment Figure 12 , Attachment Figure 13 As shown, S3.2, make a movable plate 301, including a vertical plate 303, a corner plate 304, an embedded plate 307 and a horizontal movable plate 305. The top of the vertical plate 303 is connected to the horizontal corner plate 304 and the oblique embedded plate 307. The embedded holes 308 are arranged at intervals on the embedded plate 307, and a horizontal movable plate 305 is arranged on the other side of the vertical plate 303. The bottom of the vertical plate 303 of the movable plate 301 is provided with force transmission rod holes and plastic bolt holes 3012 at intervals along the length direction, and the corner plate 304 is provided with fixed plate bolt holes 3011 at intervals along the length direction; combined with the attached Figure 9 , Attachment Figure 14 , Attachment Figure 15 As shown, S3.3, make a fixed plate 302, including a vertical plate 303, an angle plate 304, an embedding plate 307 and a horizontal movable groove 306, a horizontal movable groove 306 is set on the top of the vertical plate 303, and the horizontal angle plate 304 and the oblique embedding plate 307 are connected to the top of the horizontal movable groove 306, a flexible plate 309 is set at the bottom of the fixed plate 302, and the horizontal angle plate 304 and the oblique embedding plate 307 are connected on the upper part of the flexible plate 309, and the middle part of the vertical plate 303 of the fixed plate 302 is provided with a force transmission rod hole and a plastic bolt hole 3012 at intervals along the length direction, embedding holes 308 are provided at intervals on the embedding plate 307, and the upper and lower angle plates 304 are provided with fixed plate bolt holes 3011 at intervals along the length direction; combined with the attached Figure 8 , Attachment Figure 9 As shown in S3.4, the dowel rod 5 and the telescopic sleeve 6 are welded on the dowel rod hole position on the movable plate 301 and the fixed plate 302, and the telescopic sleeve 6 and the horizontal moving groove 306 are filled with lubricant 7; Figure 10 , Attachment Figure 11 As shown in S3.5, the horizontal moving plate 305 on the movable plate 301 is inserted into the horizontal moving groove 306 of the fixed plate 302, and the force transmission rod 5 is inserted into the corresponding telescopic sleeve 6. As required, a spacing of 10 to 20 mm is set between the movable plate 301 and the fixed plate 302, and plastic bolts 4 are installed at the plastic bolt holes 3012 between the two to connect them into a whole; combined with the attached Figure 24 , Attachment Figure 29 As shown, fixing plate bolt holes 3011 are provided at intervals on the corner guard plate of the fixing plate, and the height of the flexible plate 309 at the bottom of the fixing plate 302 is 10 mm. It adapts to the unevenness of the foundation cushion 10 through slight deformation, and acts as a template to fill the gap between the first pouring area and the foundation; the plastic bolts 4 break after the high-precision floor 1 in the first pouring area and the later pouring area reaches strength and shrinks, and the fixed connection between the movable plate 301 and the fixed plate 302 is disconnected.

[0069] S4, recycling positioning system 8 processing and installation: combined with the attached Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 As shown, S4.1, the recovery positioning system 8 includes an adjustment base plate 801, a vertical square column 803, an expanded top plate 804, a diagonal support rod 807 and a movable block 809; the four corners of the adjustment base plate 801 are provided with adjustment knobs 802, which can adapt to the unevenness of the foundation cushion 10 after adjustment. The adjustment base plate 801 and the expanded top plate 804 are connected by a diagonal support rod 807. The movable block 809 is a square tube 8091 component, and a connecting plate 8092 and an inclined plate 8094 are provided on the side of the fixed movable armor seam 3. The adjustment rod 808 moves up and down on the square column 803 to adapt to the installation and fixation of movable armor seams 3 of different sizes, and is fixed by the anchor nut 13 and the fixing knob 8095 at the end of the adjustment rod 808; combined with the attached Figure 24 As shown, S4.2, install the recovery positioning system 8 on the side of the post-casting area of the expansion joint, rotate the adjustment knobs 802 at the four corners of the bottom of the adjustment base plate 801 to make the adjustment base plate 801 in a horizontal state, and fix the recovery positioning system 8 with the long bolts 1101 to fix the adjustment base plate 801 to the foundation cushion layer 10.

[0070] S5. Installation of movable armor seam 3 components: Combine with the attached Figure 5 As shown, S5.1, lift the movable block 809 on the square column 803 to the bottom of the expanded top plate 804, and temporarily fix the adjustment rod with the anchor nut 13; Figure 2 As shown, S5.2, hoist the movable armor seam 3 onto the recovery positioning system 8, and fix the bottom corner plate 304 of the fixed plate 302 to the fixing hole 805 on the adjusting bottom plate 801 through the fixing plate bolt 1103, so that its lower end is fixed; S5.3, move the adjusting rod 808 to make the movable block 809 connecting plate 8092 clamp the top corner plate 304 of the fixed plate 302, and the inclined plate 8094 of the movable block 809 presses the inclined embedded plate 307 on the fixed plate 302, and the top corner plate 304 of the fixed plate 302 is fixed to the fixing hole 805 on the connecting plate 8092 through the fixing plate bolt 1103, so that its upper end is fixed; combined with the attached Figure 24 As shown, S5.4, the recovery and positioning systems 8 arranged at intervals along the length direction of the movable armor seam 3 are adjusted and fixed to complete the installation of the movable armor seam 3.

[0071] S6, first pouring area floor thickness controller 9 processing and installation: combined with the attached Figure 1 , Attachment Figure 16 ~Attached Figure 22 As shown, S6.1, the floor thickness controller 9 includes a fixed base plate 901, a conical cylinder 903, a cylinder clamping plate 905, an inner screw rod 906, and a fine-tuning screw 909. A screw rod hole 9011 with a thread is provided in the center of the fixed base plate 901, anchor holes 806 are provided at the four corners of the fixed base plate 901, and vertical triangular plates 902 are provided around the screw rod hole 9011. The triangular plates 902 are provided with embedded holes 308; the bottom of the conical cylinder 903 is provided with a waterproof Slide 904, with a symmetrical block 9012 on the top, a block groove 9013 corresponding to the block 9012 and a screw rod hole 9011 without thread are provided on the cylinder clamping plate 905, a rotating nut 907 is provided on the top of the inner screw rod 906, and a screw hole 908 is provided inside the rotating nut 907, the screw hole 908 matches the diameter of the fine-tuning screw 909, and the fine-tuning screw 909 is provided with a hexagonal hole 9010 inside to facilitate height adjustment; S6.2, cylinder Insert the body clamping plate 905 into the conical cylinder 903, and engage the clamping block groove 9013 of the body clamping plate 905 with the clamping block 9012 of the conical cylinder 903. The body clamping plate 905 is limited to the position of equal diameter of the conical cylinder 903. S6.3. The bottom of the inner sleeve screw rod 906 passes through the screw rod hole 9011 of the body clamping plate 905. The inner sleeve screw rod 906 is fixedly connected to the conical cylinder 903 via the anti-slip wire 904, and the inner sleeve screw rod 906 extends out of the bottom of the conical cylinder 903. S6.4 , the bottom of the inner screw rod 906 is fixed in the screw rod hole 9011 of the fixed base plate 901 to form a whole, and the fine-tuning screw 909 is installed in the screw hole 908 at the top of the inner screw rod 906; S6.5, the assembled floor thickness controller 9 is fixed to the side of the expansion joint first pouring area through the short bolt 1102, and the floor thickness controller 9 is arranged in a plum blossom shape with an interval of 1m, and after adjustment, the top of the floor thickness controller 9 is consistent with the elevation of the high-precision floor 1; combined with the attached Figure 24, Attachment Figure 27 As shown, the anchor holes 806 on the fixed base plate 901 of the floor thickness controller 9 correspond to the positions of the anchor holes 806 on the adjustment base plate 801 of the recovery positioning system 8 .

[0072] S7. Concrete pouring in the first pouring area: Combined with the attached Figure 25 As shown, concrete is poured in the first pouring area, and the initial leveling is performed according to the fine-tuning screw 909 of the floor thickness controller 9. Subsequently, multiple refined leveling processes are performed according to the steps of leveling → measuring the floor thickness controller 9 → scraping → re-measuring the floor thickness controller 9, and maintenance is carried out to complete the construction of the high-precision floor 1 in the first pouring area.

[0073] S8, remove the floor thickness controller 9 and mortar filling treatment: Combined with the attached Figure 26 As shown, S8.1, remove the top fine-tuning screw 909, and then use a hexagonal wrench to completely remove the inner screw rod 906, so that the conical cylinder 903 is separated from the fixed base plate 901, and the conical cylinder 903 is rotated by the internal block 9012 of the conical cylinder 903, so that the conical cylinder 903 is separated from the high-precision floor 1, and then the conical cylinder 903 is removed; S8.2, a conical groove is formed at the floor thickness controller 9 of the high-precision floor 1, and is filled with micro-expansion cement slurry 2.

[0074] S9, dismantling and recycling positioning system 8: combined with the attached Figure 27 As shown, after the high-precision floor 1 in the first pouring area reaches the required strength, the fixing plate bolts 1103 at the upper and lower ends of the fixing plate 302 are removed on the side of the later pouring area, and the recovery positioning system 8 is separated from the movable armor seam 3. Then, the long bolts 1101 for fixing the recovery positioning system 8 are removed, and the recovery positioning system 8 is separated from the foundation cushion layer 10, completing the removal of the recovery positioning system 8; all components of the recovery positioning system 8 can be removed and recycled.

[0075] S10, installation of floor thickness controller 9 in post-pouring area: Figure 28 As shown, the post-casting area floor thickness controller 9 is installed through short bolts 1102 at the bolt hole position of the post-casting area positioning system, and the installation steps are the same as S6.

[0076] S11. Concrete pouring and filling in the post-casting area: Figure 28 As shown, the high-precision floor 1 concrete pouring in the post-casting area is carried out, and the step is the same as S7; after the strength is reached, the floor thickness controller 9 in the post-casting area is removed, and the conical groove is filled with micro-expansion cement slurry 2, and the step is the same as S8, until the construction of high-precision floor 1 in all areas is completed.

[0077] Combined with attachment Figure 2 ~Attached Figure 7As shown, in the aforementioned S4 and S5, a fixing hole 805 and an anchor hole 806 are provided on the adjusting base plate 801 of the recovery positioning system 8, and an adjusting rod hole 8010 is provided on the enlarged top plate 804; a fixing hole 805 corresponding to the bolt hole 3011 of the fixing plate of the movable armor seam 3 is provided on the connecting plate 8092 of the movable block 809, and the inclined plate 8094 has the same inclination angle as the embedded plate 307, and can fit tightly, and a knob hole 8096 is provided on the opposite side of the contact surface between the square tube 8091 and the connecting plate 8092, and a fixing knob 8095 is installed; one end of the adjusting rod 808 is fixed to the ear plates 8093 on both sides of the square tube 8091 of the movable block 809, and the other end passes through the adjusting rod hole 8010 of the enlarged top plate 804 and is fixed by the anchor nut 13.

[0078] Combined with attachment Figure 26 , Attachment Figure 29 As shown, in S8 and S11, after the floor thickness controller 9 is removed, the fixed base plate 901 is left in the high-precision floor 1, and the conical cylinder 903, cylinder clamping plate 905, inner sleeve screw rod 906, and fine-tuning screw 909 components are recovered for subsequent construction.

[0079] The above embodiments are only used to illustrate the technical concept of the present invention, and are not intended to limit the rights protection of the present invention. Any non-substantial changes to the present invention using this concept should fall within the scope of protection of the present invention.

Claims

1. Construction method of high-precision concrete floor expansion joint recyclable positioning system, characterized by: The following steps are involved: S1. Construction zoning and expansion joint positioning: Arrange expansion joints according to construction requirements, lay out lines on the foundation cushion (10) to complete expansion joint positioning, and set the first pouring area and the last pouring area; S2. Drilling holes in the foundation cushion layer (10): Drill fixing bolt holes (14) on the left and right sides of the expansion joint for fixing the subsequent recovery positioning system (8) and the floor thickness controller (9); S3. Design and processing of movable armor seam (3): S3.1, the movable armor seam (3) comprises a movable plate (301) and a fixed plate (302), wherein the movable plate (301) is located on the first pouring area side and the fixed plate (302) is located on the second pouring area side; S3.2, making a movable plate (301), including a vertical plate (303), a corner guard plate (304), an embedded plate (307) and a horizontal movable plate (305), the top of the vertical plate (303) is connected to the horizontal corner guard plate (304) and the oblique embedded plate (307), the embedded plate (307) is provided with embedded holes (308) at intervals, and a horizontal movable plate (305) is provided on the other side of the vertical plate (303), and the bottom of the vertical plate (303) of the movable plate (301) is provided with force transmission rod holes and plastic bolt holes (3012) at intervals along the length direction, and the corner guard plate (304) is provided with fixed plate bolt holes (3011) at intervals along the length direction; S3.3, making a fixed plate (302), comprising a vertical plate (303), a corner plate (304), an embedded plate (307) and a horizontal movable groove (306), wherein the horizontal movable groove (306) is provided on the top of the vertical plate (303), and the horizontal corner plate (304) and the oblique embedded plate (307) are connected to the top of the horizontal movable groove (306), a flexible plate (309) is provided on the bottom of the fixed plate (302), and the horizontal corner plate (304) and the oblique embedded plate (307) are connected to the upper part of the flexible plate (309), and a force transmission rod hole and a plastic bolt hole (3012) are provided at intervals along the length direction in the middle of the vertical plate (303) of the fixed plate (302), and embedded holes (308) are provided at intervals on the embedded plate (307), and fixed plate bolt holes (3011) are provided at intervals along the length direction on the upper and lower corner plates (304); S3.4, a force transmission rod (5) and a telescopic sleeve (6) are welded to the movable plate (301) and the fixed plate (302) at the position of the force transmission rod hole, and the interior of the telescopic sleeve (6) and the horizontal movement groove (306) are filled with lubricant (7); S3.

5. Insert the horizontal movable plate (305) on the movable plate (301) into the horizontal movable groove (306) of the fixed plate (302), insert the force transmission rod (5) into the corresponding telescopic sleeve (6), set a spacing of 10 to 20 mm between the movable plate (301) and the fixed plate (302) as required, and install plastic bolts (4) in the plastic bolt holes (3012) between the two to connect them into a whole; S4. Processing and installation of recycling positioning system (8): S4.

1. The recovery positioning system (8) comprises an adjustment base plate (801), a vertical square column (803), an expanded top plate (804), a diagonal support rod (807) and a movable block (809); the four corners of the adjustment base plate (801) are provided with adjustment knobs (802), which are adjusted to adapt to the unevenness of the foundation cushion (10); a diagonal support rod (807) is provided between the adjustment base plate (801) and the expanded top plate (804); the movable block (809) is a square tube (8091) component, and a connecting plate (8092) and an inclined plate (8094) are provided on the side of the fixed movable armor seam (3); the adjustment rod (808) moves up and down on the square column (803), thereby adapting to the installation and fixation of movable armor seams (3) of different sizes, and is fixed by the anchor nut (13) and the fixing knob (8095) at the end of the adjustment rod (808); S4.

2. Install the recovery positioning system (8) on the side of the post-casting area of the expansion joint, rotate the adjustment knobs (802) at the four corners of the bottom of the adjustment base plate (801) to make the adjustment base plate (801) in a horizontal state, and fix the recovery positioning system (8) with long bolts (1101) to fix the adjustment base plate (801) to the foundation cushion layer (10); S5. Installation of movable armor seam (3) components: S5.

1. Lift the movable block (809) on the square column (803) to the bottom of the expanded top plate (804), and temporarily fix the adjustment rod with the anchor nut (13); S5.

2. Hoist the movable armor seam (3) onto the recovery positioning system (8), and fix the bottom corner plate (304) of the fixed plate (302) to the fixing hole (805) on the adjustment bottom plate (801) through the fixing plate bolt (1103) to fix its lower end; S5.3, move the adjusting rod (808) so that the connecting plate (8092) of the movable block (809) clamps the top corner guard (304) of the fixed plate (302), the inclined plate (8094) of the movable block (809) presses against the inclined embedded plate (307) on the fixed plate (302), and the top corner guard (304) of the fixed plate (302) is fixed to the fixing hole (805) on the connecting plate (8092) by the fixing plate bolt (1103), so that the upper end thereof is fixed; S5.4, adjusting and fixing the recovery positioning system (8) arranged at intervals along the length direction of the movable armor seam (3) to complete the installation of the movable armor seam (3); S6. Processing and installation of the first pouring area floor thickness controller (9): S6.1, the floor thickness controller (9) comprises a fixed base plate (901), a conical cylinder (903), a cylinder clamping plate (905), an inner sleeve screw rod (906), and a fine-tuning screw (909). The fixed base plate (901) is provided with a screw rod hole (9011) with a thread in the center, anchor holes (806) are provided at the four corners of the fixed base plate (901), and vertical triangular plates (902) are provided around the screw rod hole (9011). The triangular plates (902) are provided with embedded holes (308); the bottom of the conical cylinder (903) is provided with a screw rod hole (9011). There is an anti-slip wire (904), a symmetrical clamping block (9012) is provided on the top, a clamping block groove (9013) corresponding to the clamping block (9012) and a screw rod hole (9011) without thread are provided on the cylinder clamping plate (905), a rotating nut (907) is provided on the top of the inner sleeve screw rod (906), and a screw hole (908) is provided inside the rotating nut (907), the screw hole (908) matches the diameter of the fine-tuning screw (909), and the fine-tuning screw (909) is provided with a hexagonal hole (9010) inside to facilitate elevation adjustment; S6.2, the cylinder clamping plate (905) is placed in the conical cylinder (903), the clamping block groove (9013) of the cylinder clamping plate (905) is correspondingly clamped with the clamping block (9012) of the conical cylinder (903), and the cylinder clamping plate (905) is limited to the equal diameter of the conical cylinder (903); S6.3, the bottom of the inner screw rod (906) passes through the screw rod hole (9011) of the cylinder clamping plate (905), and the inner screw rod (906) is fixedly connected to the conical cylinder (903) through the anti-slip wire (904), and the inner screw rod (906) extends out of the bottom of the conical cylinder (903); S6.

4. The bottom of the inner sleeve screw rod (906) is fixed in the screw rod hole (9011) of the fixed base plate (901) to form a whole, and a fine-tuning screw (909) is installed in the screw hole (908) at the top of the inner sleeve screw rod (906); S6.

5. Fix the assembled floor thickness controller (9) to the side of the expansion joint pre-cast area by means of short bolts (1102), and adjust the top of the floor thickness controller (9) to be consistent with the elevation of the high-precision floor (1); S7, pouring concrete in the first pouring area: pouring concrete in the first pouring area, and performing initial leveling according to the fine-tuning screw (909) of the floor thickness controller (9), and then performing multiple refined leveling processes according to the steps of leveling → measuring the floor thickness controller (9) → scraping → re-measuring the floor thickness controller (9), and performing maintenance to complete the construction of the high-precision floor (1) in the first pouring area; S8. Remove the floor thickness controller (9) and fill the gaps with mortar: S8.

1. Remove the top fine-tuning screw (909), and then use a hexagonal wrench to completely remove the inner sleeve screw rod (906). The cone cylinder (903) is separated from the fixed base plate (901). The cone cylinder (903) is rotated by the internal block (9012) of the cone cylinder (903). The cone cylinder (903) is separated from the high-precision floor (1), and then the cone cylinder (903) is removed. S8.2, a high-precision floor (1) forms a conical groove at the floor thickness controller (9), and is filled with micro-expansion cement slurry (2); S9, dismantling the recovery positioning system (8): after the high-precision floor (1) in the first pouring area reaches the required strength, the fixing plate bolts (1103) at the upper and lower ends of the fixing plate (302) are removed on the side of the later pouring area, the recovery positioning system (8) is separated from the movable armor seam (3), and the long bolts (1101) for fixing the recovery positioning system (8) are removed, the recovery positioning system (8) is separated from the foundation cushion (10), and the removal of the recovery positioning system (8) is completed; S10, installation of the post-casting area floor thickness controller (9): Install the post-casting area floor thickness controller (9) at the bolt hole position of the post-casting area positioning system through short bolts (1102), and the installation steps are the same as S6; S11, concrete pouring and caulking in the post-casting area: Concrete pouring of the high-precision floor (1) in the post-casting area is carried out, and the steps are the same as S7; after reaching the strength, the floor thickness controller (9) in the post-casting area is removed, and the conical groove is filled with micro-expansion cement slurry (2), and the steps are the same as S8, until the construction of the high-precision floor (1) in all areas is completed.

2. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the above-mentioned S1, the first pouring area and the second pouring area are arranged at intervals, and the high-precision floor (1) on the adjacent side of the expansion joint meets the skipping construction process.

3. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the aforementioned S2, the fixing bolt holes (14) include positioning system bolt holes and thickness controller bolt holes (1402), and the positioning system bolt holes are only located on the side of the post-casting area and serve as thickness controller bolt holes (1402) when the high-precision floor (1) in the post-casting area is cast.

4. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the above-mentioned S3, the corner guard of the fixed plate is provided with fixed plate bolt holes (3011) at intervals, and the height of the flexible plate (309) at the bottom of the fixed plate (302) is 10-20 mm. It adapts to the unevenness of the foundation cushion (10) through slight deformation and acts as a template to fill the gap between the first pouring area and the foundation; the plastic bolts (4) break after the high-precision floor (1) in the first pouring area and the second pouring area reaches strength and shrinks, and the fixed connection between the movable plate (301) and the fixed plate (302) is disconnected.

5. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the aforementioned S4 and S5, the adjustment base plate (801) of the recovery positioning system (8) is provided with a fixing hole (805) and an anchor hole (806), and the expanded top plate (804) is provided with an adjustment rod hole (8010); the connecting plate (8092) of the movable block (809) is provided with a fixing hole (805) corresponding to the bolt hole (3011) of the fixing plate of the movable armor seam (3); the inclined plate (8094) and the embedded plate (307) have the same inclination angle and can fit tightly together; the opposite side of the contact surface between the square tube (8091) and the connecting plate (8092) is provided with a knob hole (8096), and a fixing knob (8095) is installed; one end of the adjustment rod (808) is fixed to the ear plates (8093) on both sides of the square tube (8091) of the movable block (809), and the other end passes through the adjustment rod hole (8010) of the expanded top plate (804) and is fixed by an anchor nut (13).

6. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the above-mentioned S6, the anchor hole (806) on the fixed bottom plate (901) of the floor thickness controller (9) corresponds to the position of the anchor hole (806) on the adjustment bottom plate (801) of the recovery positioning system (8).

7. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the above-mentioned S6 and S10, the floor thickness controllers (9) are arranged in a plum blossom shape with an interval of 1m.

8. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the above-mentioned S8 and S11, after the floor thickness controller (9) is removed, the fixed base plate (901) is left in the high-precision floor (1), and the conical cylinder (903), cylinder clamping plate (905), inner sleeve screw rod (906), and fine-tuning screw (909) are recovered for subsequent construction.

9. The construction method of the high-precision concrete floor expansion joint recyclable positioning system according to claim 1 is characterized in that: In the above-mentioned S9, all components of the recycling positioning system (8) can be dismantled and recycled.

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