Magnetic fiber concrete construction device and construction method thereof

Abstract

The application provides a magnetic fiber concrete construction device and a construction method thereof, the device comprising two groups of magnetic device support mechanisms, each of the magnetic device support mechanisms comprising two groups of mounting seats, each of the mounting seats being provided with a guide groove along the length direction of the mounting seat, the guide groove being provided with a first sliding block matched with the guide groove, a horizontal magnetic device being arranged between the two groups of mounting seats, the horizontal magnetic device being connected with the sliding block, the magnetic poles of the horizontal magnetic devices corresponding to the two groups of magnetic device support mechanisms being the same at the end close to each other, a support frame being arranged between the two groups of magnetic device support mechanisms, the two ends of the support frame being connected with second sliding blocks, and a vertical magnetic device being arranged on the support frame. The construction device and the construction method thereof utilize the impact resistance of the magnetic fiber concrete, change the arrangement of the magnetic fibers at the key stress positions, and utilize the ordered arrangement of the magnetic fibers to enhance the shearing resistance of the concrete.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of magnetic fiber concrete construction, in particular to a magnetic fiber concrete construction device and a construction method thereof. BACKGROUND

[0002] Reinforced concrete structure has been the most important structure form in industrial and civil buildings. However, a large number of reinforced concrete structure buildings appear various problems affecting the use function and endangering the structure safety during the use process soon after the buildings are built, which is mainly due to that the components bear large bending moment and shear force exceeding the bearing capacity of reinforced concrete. And due to the disadvantages of large self-weight of reinforced concrete, poor crack resistance and high cost, these problems are not easy to solve. In the initial lining and secondary lining between the tunnel engineering, due to the complex stress distribution, disordered direction and uneven size of deep soft rock, the stress of the commonly used reinforced concrete is uneven, which leads to the unsatisfactory supporting effect. The cement road is subjected to shear failure due to the foundation settlement and the vehicle load on the road.

[0003] Although the steel fiber reinforced concrete can overcome the disadvantages of low tensile strength, small ultimate elongation and brittle nature, the steel fiber cannot be arranged according to the stress condition of the component, the utilization rate of the material is low, and some unnecessary waste is caused.

[0004] If magnetic fibers are added to the concrete, the magnetic fibers are arranged in the component according to the stress structure of different parts, the magnetic fibers are arranged on the vertical line in the shear direction, the tensile strength, bending strength, impact strength, elongation and toughness of the concrete are improved, and the material can be fully utilized, so that the cost is effectively saved. This technology can be applied to the prefabricated beam, slab structure in house construction, pavement and subgrade engineering, deep soft rock tunnel engineering and culvert construction and other technical fields. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a magnetic fiber concrete construction device and a construction method thereof, which utilizes the impact resistance of the magnetic fiber concrete, changes the arrangement of the magnetic fibers at the key stress parts, and utilizes the ordered arrangement of the magnetic fibers to enhance the shear resistance of the concrete.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is: a magnetic fiber concrete construction device, comprising two groups of magnetic device support mechanisms, the magnetic device support mechanism comprises two groups of mounting seats, a guide groove is arranged along the length direction of the mounting seat, a first sliding block matched with the guide groove is arranged on the guide groove, a horizontal magnetic device is arranged between the two groups of mounting seats, the horizontal magnetic device is connected with the sliding block, the magnetic poles of the horizontal magnetic devices corresponding to the two groups of magnetic device support mechanisms are the same at the end close to each other, a support frame is arranged between the two groups of magnetic device support mechanisms, the support frame is connected with a second sliding block at both ends, and a vertical magnetic device is arranged on the support frame.

[0007] In a preferred embodiment, an upper surface buckle plate is included, which is disposed between two sets of magnetic device support mechanisms and is connected to the mounting base.

[0008] In a preferred embodiment, the mounting base has mounting holes at both the bottom and the top. The mounting base is fixed by inserting ground nails into the mounting holes. The upper surface buckle plate has through holes corresponding to the mounting holes on the upper side of the mounting base. The upper surface buckle plate is connected to the mounting base by screws.

[0009] In a preferred embodiment, an end baffle is provided between the two sets of magnetic device support mechanisms. The end baffle is located between two adjacent mounting seats and at the end of the mounting seats, and the end baffle is set perpendicular to the concrete grouting surface.

[0010] In a preferred embodiment, the mounting base has a vertical sealing plate on the side near the vertical magnetic device.

[0011] In a preferred embodiment, the mounting base is an I-shaped steel, and the vertical sealing plate is clamped between the upper and lower flanges of the I-shaped steel.

[0012] In a preferred embodiment, the upper and lower flanges of the mounting base are provided with grooves corresponding to the vertical sealing plate on opposite sides.

[0013] In a preferred embodiment, the upper side of the first slider is provided with a mounting groove that cooperates with the horizontal magnetic device.

[0014] In a preferred embodiment, both the horizontal and vertical magnetic devices include an iron-silicon alloy column, with a wire wound around the outside of the iron-silicon alloy column.

[0015] The present invention also provides a construction method for a magnetic fiber concrete construction device, comprising the following steps:

[0016] Step 1: Select the length of the mounting base according to the required length of the concrete construction. Install the two sets of magnetic device support mechanisms on the concrete construction surface. The distance between the adjacent mounting bases of the two sets of magnetic device support mechanisms is the width of the concrete construction.

[0017] Step 2: Install the horizontal magnetic device on the first slider and the vertical magnetic device on the support frame. Adjust the positions of the horizontal and vertical magnetic devices by sliding them along the guide groove.

[0018] Step 3: Install vertical sealing plates to limit the construction area on both sides between the two sets of magnetic device support mechanisms, install end baffles to block and limit the construction area at the ends, and install upper surface buckles to block and limit the upper surface of the construction area.

[0019] Step 4: After the magnetic fiber concrete is prepared, perform segmented grouting in the grouting area consisting of the vertical sealing plate, end baffle, and upper surface buckle plate.

[0020] Step five, open the horizontal magnetic device, and make the horizontal magnetic device slide up and down in the grouting area along the chute, so that the magnetic fibers are arranged along the direction of magnetic induction lines, then close the horizontal magnetic device, and then open the vertical magnetic device to arrange the magnetic fibers in the magnetic fiber concrete, and repeat steps four and five until the concrete construction is completed.

[0021] The magnetic fiber concrete construction device and the construction method thereof have the following beneficial effects:

[0022] 1. The tensile, bending, impact and fatigue resistance of the magnetic fiber concrete are utilized, and the ductility is good. By arranging the horizontal magnetic device and the vertical magnetic device, the magnetic fibers are deflected, the magnetic fibers are arranged on the vertical line in the shear direction, the tensile, bending, impact and fatigue resistance of the concrete are improved, the elongation and toughness are improved, the material is fully utilized, and the cost is effectively saved.

[0023] 2. The device is used for magnetic fiber concrete instead of reinforced concrete, and can be used for the construction of tunnels, highways, bridges and the manufacturing of precast beams and precast boards. The bonding capacity of the magnetic fibers and the concrete is better than that of the steel bars and the concrete, and the rigid support effect is better than that of the reinforced concrete during tunnel construction.

[0024] 3. By using the segmented pouring method, the content of the magnetic fibers can be changed to achieve the maximum content of the magnetic fibers in the stress part, and the content of the magnetic fibers in the part with smaller stress can be lower, so that the fibers are fully utilized and the utilization rate of the fibers is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The application will be further described below in combination with the drawings and examples:

[0026] Figure 1 It is a schematic diagram of the overall structure of the application;

[0027] Figure 2 It is a schematic diagram of the structure of the mounting seat;

[0028] Figure 3 It is a schematic diagram of the structure of the supporting mechanism;

[0029] Figure 4 It is a schematic diagram of the structure of the supporting frame;

[0030] Figure 5 It is a schematic diagram of the structure of the upper surface buckle plate;

[0031] Figure 6 It is a schematic diagram of the structure of the horizontal magnetic device or the vertical magnetic device;

[0032] Figure 7This is a schematic diagram of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of Example 1;

[0034] In the figure: mounting base 1, first slider 2, horizontal magnetic device 3, support frame 4, vertical magnetic device 5, upper surface buckle plate 6, end baffle 7, vertical sealing plate 8, iron-silicon alloy column 9, wire 10, second slider 11, guide groove 101, mounting hole 102, slide groove 103, mounting slot 201, through hole 601. Detailed Implementation

[0035] like Figures 1-4 As shown, a magnetic fiber reinforced concrete construction device includes two sets of magnetic device support mechanisms. Each set of magnetic device support mechanisms includes two sets of mounting seats 1. The height of the mounting seats 1 is the same as the thickness of the concrete pouring. The mounting seats 1 are provided with guide grooves 101 along their length direction. The guide grooves 101 can be configured as through grooves or as two sets of parallel grooves, respectively set on both sides of the mounting seats 1. The guide grooves 101 are provided with first sliders 2 that cooperate with them. A horizontal magnetic device 3 is provided between the two sets of mounting seats 1. The horizontal magnetic device 3 is connected to the sliders 2. The magnetic poles of the corresponding horizontal magnetic devices 3 of the two sets of magnetic device support mechanisms are the same at the ends that are close to each other. A support frame 4 is provided between the two sets of magnetic device support mechanisms. The two ends of the support frame 4 are connected to second sliders 11. The second sliders 11 are slidably installed in the guide grooves 101. The structure of the second sliders 11 is the same as that of the first sliders 2. A vertical magnetic device 5 is set on the support frame 4. The horizontal magnetic device 3 and the vertical magnetic device 5 can be electromagnets.

[0036] In this embodiment, the structure of the support frame 4 is as follows: Figure 4 As shown, it includes a connecting plate and a groove adapted to the vertical magnetic device 5. The support frame 4 is made of bent iron sheet. According to the number of vertical magnetic devices 5, the iron sheet is bent into a corresponding number of grooves to facilitate the clamping and positioning of the vertical magnetic device 5.

[0037] Preferably, it includes an upper surface buckle plate 6, which is disposed between two sets of magnetic device support mechanisms and is connected to the mounting base 1.

[0038] By setting the upper surface buckle plate 6, the pouring thickness of the concrete construction area can be limited.

[0039] like Figure 5 As shown, the mounting base 1 has mounting holes 102 on both the bottom and the top. The mounting base 1 is fixed by inserting a ground nail into the mounting hole 102. The upper surface buckle plate 6 has a through hole 601 corresponding to the mounting hole 102 on the upper side of the mounting base 1. The upper surface buckle plate 6 is connected to the mounting base 1 by screws.

[0040] Preferably, an end baffle 7 is provided between the two sets of magnetic device support mechanisms. The end baffle 7 is located between two adjacent mounting seats 1 and at the end of the mounting seat 1. The end baffle 7 is set perpendicular to the concrete grouting surface.

[0041] By setting the end baffle 7, one end of the concrete construction area can be sealed off, which helps with the pouring of concrete.

[0042] Preferably, the mounting base 1 is provided with a vertical sealing plate 8 on the side near the vertical magnetic device 5. By providing the vertical sealing plate 8 to cover the guide channel 101, the contamination of the mounting base 1 and the guide channel 101 by concrete is reduced.

[0043] In this embodiment, the mounting base 1 is an I-shaped steel, with two sets of I-shaped steel arranged in parallel, and the vertical sealing plate 8 is fastened between the upper and lower flanges of the I-shaped steel.

[0044] To facilitate the installation of the vertical sealing plate 8, the upper and lower flanges of the mounting base 1 are provided with sliding grooves 103 corresponding to the vertical sealing plate 8 on opposite sides.

[0045] During the pouring process, the vertical sealing plate 8 is moved along the slide groove 103 while pouring in sections, which can achieve sealing and protection without affecting the movement of the vertical magnetic device 5.

[0046] Preferably, the upper side of the first slider 2 is provided with a mounting groove 201 that cooperates with the horizontal magnetic device 3. The mounting groove 201 has a "U" shaped structure, which is adapted to the outer side of the horizontal magnetic device 3 to lock the horizontal magnetic device 3 in place.

[0047] Preferred, such as Figure 6 As shown, both the horizontal magnetic device 3 and the vertical magnetic device 5 include an iron-silicon alloy column 9, which is a hollow tube structure. A wire 10 is wound around the outside of the iron-silicon alloy column 9. When the wire 10 is energized, the iron-silicon alloy column 9 generates magnetic force. The direction of the magnetic poles of the horizontal magnetic device 3 or the vertical magnetic device 5 can be changed by changing the direction of the current in the wire 10.

[0048] A construction method for a magnetic fiber reinforced concrete construction device includes the following steps:

[0049] Step 1: Select the length of mounting base 1 according to the required length of concrete construction, and install the two sets of magnetic device support mechanisms on the concrete construction surface. The distance between the two sets of magnetic device support mechanisms and adjacent mounting bases 1 is the width of concrete construction.

[0050] Step 2: Install the horizontal magnetic device 3 on the first slider 2 and the vertical magnetic device 5 on the support frame 4. Adjust the position of the horizontal magnetic device 3 and the vertical magnetic device 5 by sliding along the guide groove 101.

[0051] Step three, install the vertical sealing plate 8 to limit the construction area between the two groups of magnetic device support mechanisms, install the end baffle 7 to block the end of the construction area, and install the upper surface buckle 6 to block the upper surface of the construction area;

[0052] Step four, after the preparation of the magnetic fiber concrete, segmental grouting is carried out in the grouting area composed of the vertical sealing plate 8, the end baffle 7 and the upper surface buckle 6;

[0053] Step five, open the horizontal magnetic device 3, and make the horizontal magnetic device 3 slide up and down in the grouting area along the sliding groove 103, so that the magnetic fibers are arranged along the magnetic induction line direction, close the horizontal magnetic device 3, then open the vertical magnetic device 5, and arrange the magnetic fibers in the magnetic fiber concrete, repeat steps four and five until the concrete construction is completed.

[0054] Example 1: Taking tunnel concrete construction as an example, for the deep soft rock chamber between the primary lining and the secondary lining, for the tunnel side wall, the height of the mounting seat 1 is selected according to the thickness of the reinforced concrete, and the length of the mounting seat 1 is selected according to the height of the tunnel, the mounting seat 1 is arranged vertically to the ground, and the mounting seat 1 is fixed by using steel nails, the horizontal magnetic device 3 is clamped on the first sliding block 2, at this time the magnetic field in the horizontal direction has been arranged. The support frame 4 is fixed with the second sliding block 11, which can be fixed by welding, and the vertical magnetic device 5 is clamped on the support frame 4, at this time the magnetic field in the vertical direction has been arranged. The horizontal magnetic device 3 and the vertical magnetic device 5 can move along the length direction of the mounting seat 1. Install the vertical sealing plate 8 to limit the construction area between the two groups of magnetic device support mechanisms, install the end baffle 7 to block the end of the construction area, and install the upper surface buckle 6 to block the upper surface of the construction area, so that the concrete construction area forms an open upper end grouting cavity. The magnetic fiber concrete is loaded into the high-pressure grouting machine, the grouting pipeline starts segmental grouting from the upper end of the construction area, the horizontal magnetic device 3 is opened, the same magnetic poles of the two horizontal magnetic devices 3 are opposite, as shown in Figure 7 , and the horizontal magnetic device 3 slides up and down in the grouting area along the sliding groove 103, so that the magnetic fibers are arranged along the magnetic induction line direction, the horizontal magnetic device 3 is closed, then the vertical magnetic device 5 is opened, the magnetic fibers in the magnetic fiber concrete are arranged, and the grouting is carried out again according to the above operation in turn, until the concrete construction of this construction section is completed. The magnetic device support mechanism is adjusted in the length direction of the tunnel for the next concrete construction of the construction section.

[0055] Example 2: For the prefabricated beam or the prefabricated plate, first analyze the required mechanical properties of the structure, and select the magnetic fiber and the content. Analyze the maximum shear moment point, for these positions with larger stress, the content of magnetic fiber can be changed to enhance the bending and shear resistance of the structure, so as to replace the reinforced concrete.

[0056] For the beam, first measure the length, width and height of the prefabricated beam, select the length of the mounting seat 1 to be the same as the length of the prefabricated beam, the interval between the two groups of magnetic device supporting mechanisms is the width of the prefabricated beam, and the height of the mounting seat 1 is the height of the prefabricated beam, then fix the mounting seat 1 on the ground, and then complete the installation of the horizontal magnetic device 3 and the vertical magnetic device 5. Install the vertical sealing plate 8 to limit the construction area between the two groups of magnetic device supporting mechanisms on both sides, install the end baffle 7 to block the end of the construction area, and install the upper surface baffle 6 to block the upper surface of the construction area, so that the concrete construction area forms an open grouting cavity at one end. Turn on the horizontal magnetic device 3, make the same magnetic poles of the two horizontal magnetic devices 3 opposite, and make the horizontal magnetic device 3 slide up and down in the grouting area along the sliding groove 103, so that the magnetic fibers are arranged along the magnetic induction line direction, turn off the horizontal magnetic device 3, then turn on the vertical magnetic device 5, arrange the magnetic fibers in the magnetic fiber concrete, then move the vertical magnetic device 5 to adjust its position, and then grout again according to the above operation in turn, until the concrete construction is completed.

[0057] According to the construction process of the beam or the plate, it can also be applied to the construction of the cement road. Due to the uneven settlement of the roadbed, the shear force on the cement road is large, which is easy to cause shear failure. If magnetic fiber concrete is used, the magnetic fibers are arranged horizontally, which reduces the damage of shear to the road surface.

Claims

1. A magnetic fiber concrete construction device, characterized by, It includes two sets of magnetic device support mechanisms. The magnetic device support mechanism includes two sets of mounting seats (1). The mounting seats (1) are provided with guide grooves (101) along their length direction. The guide grooves (101) are provided with first sliders (2) that cooperate with them. A horizontal magnetic device (3) is provided between the two sets of mounting seats (1). The horizontal magnetic device (3) is connected to the first slider (2). The magnetic poles of the horizontal magnetic devices (3) corresponding to the two sets of magnetic device support mechanisms are the same at the close end. A support frame (4) is provided between the two sets of magnetic device support mechanisms. The two ends of the support frame (4) are connected to the second slider (11). A vertical magnetic device (5) is set on the support frame (4). A vertical sealing plate (8) is provided on the side of the mounting seat (1) close to the vertical magnetic device (5).

2. A magnetic fiber concrete construction device according to claim 1, characterized in that, It includes an upper surface buckle plate (6), which is set between two sets of magnetic device support mechanisms and is connected to the mounting base (1).

3. A magnetic fiber concrete construction device according to claim 2, characterized in that, The mounting base (1) is provided with mounting holes (102) at the bottom and top. The mounting base (1) is fixed by inserting the ground nail into the mounting hole (102). The upper surface buckle plate (6) is provided with a through hole (601) corresponding to the mounting hole (102) on the upper side of the mounting base (1). The upper surface buckle plate (6) is connected to the mounting base (1) by screws.

4. The magnetic fiber concrete construction device according to claim 1, wherein, An end baffle (7) is provided between the two sets of magnetic device support mechanisms. The end baffle (7) is located between two adjacent mounting seats (1) and at the end of the mounting seat (1). The end baffle (7) is set perpendicular to the concrete grouting surface.

5. The magnetic fiber concrete construction device of claim 1, wherein, The mounting base (1) is an I-shaped steel, and the vertical sealing plate (8) is clamped between the upper and lower flanges of the I-shaped steel.

6. A magnetic fibre concrete construction device according to claim 5, characterised in that The mounting base (1) has grooves (103) on opposite sides of its upper and lower flanges that correspond to the vertical sealing plate (8).

7. A magnetic fiber concrete construction device according to claim 1, characterized in that, The first slider (2) has an mounting groove (201) on its upper side that cooperates with the horizontal magnetic device (3).

8. A magnetic fiber concrete construction device according to claim 1, characterized in that, Both the horizontal magnetic device (3) and the vertical magnetic device (5) include an iron-silicon alloy column (9) with a wire (10) wrapped around the outside of the iron-silicon alloy column (9).

9. A method of constructing a magnetic fiber concrete construction device according to any one of claims 1 to 8, characterized in that, Includes the following steps: Step 1: Select the length of the mounting base (1) according to the required length of the concrete construction, and install the two sets of magnetic device support mechanisms on the concrete construction surface. The distance between the adjacent mounting bases (1) of the two sets of magnetic device support mechanisms is the width of the concrete construction. Step 2: Install the horizontal magnetic device (3) on the first slider (2) and the vertical magnetic device (5) on the support frame (4). Adjust the position of the horizontal magnetic device (3) and the vertical magnetic device (5) along the guide groove (101). Step 3: Install vertical sealing plate (8) to limit the construction area on both sides between the two sets of magnetic device support mechanisms, install end baffle (7) to block and limit the construction area at the end, and install upper surface buckle plate (6) to block and limit the upper surface of the construction area. Step 4: After the magnetic fiber concrete is prepared, grouting is carried out in sections in the grouting area consisting of the vertical sealing plate (8), the end baffle (7) and the upper surface buckle plate (6); Step five, open the horizontal magnetic force device (3), and make the horizontal magnetic force device (3) slide up and down along the guide groove (101) in the grouting area, so that the magnetic fibers are arranged along the direction of magnetic induction lines, close the horizontal magnetic force device (3), then open the vertical magnetic force device (5), arrange the magnetic fibers in the magnetic fiber concrete, repeat step four and step five until the concrete construction is completed.

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