House building roof crack repairing method

Abstract

The invention relates to the technical field of house building engineering, in particular to a house building roof crack repairing method which comprises the following steps: step 1, drawing a crack trajectory along the trend of a roof crack; step 2, drawing a reinforced boundary line at the positioning point and the middle point; thirdly, drilling, grooving and cleaning are conducted; fourthly, reinforcing pieces are arranged in the reinforcing grooves and the drill holes; fifthly, a repairing pipe is installed in the repairing groove, a plurality of repairing openings are formed in the bottom of the repairing pipe, a grouting opening is formed in the upper portion of the repairing pipe, and the grouting opening is connected with grouting equipment; sixthly, grouting equipment is started, mortar is injected into the repairing pipe, and the mortar is injected into the crack through a grouting opening; and 7, finally, a leveling layer and a waterproof layer are constructed. Through the modes of drawing the crack track line, drilling, forming the repairing groove, configuring the reinforcing piece and the repairing pipe and the like, the crack is prevented from appearing again, the repairing effect is improved, high practicability and popularization value are achieved, and long-term safety of a building structure is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of housing construction engineering, and particularly relates to a method for repairing roof cracks in housing construction. Background Art

[0002] Roof cracks are a problem that cannot be ignored in housing construction. If not processed and repaired in a timely and effective manner, they will not only affect the structural safety of the house, but also damage the waterproof performance of the roof, resulting in serious consequences such as leakage. The causes of roof cracks are complex and diverse, mainly including the natural settlement of the house, the thermal expansion and contraction of building materials, construction quality problems, unreasonable roof structure design, and the influence of extreme weather, etc. These factors acting alone or in combination may cause cracks of different degrees on the roof, thereby affecting the overall performance of the building.

[0003] Currently, the methods for repairing roof cracks mainly include the following steps: First, clean the area around the cracks, remove dust, debris and loose parts to ensure that the repair materials can adhere fully. Then, use special crack repair agents or waterproof sealants for filling. During the filling process, it is necessary to ensure that the repair materials fully fill the cracks and keep the surface flat. For larger or deeper cracks, internal filling and reinforcement treatment may be required. This usually involves cutting inside the roof to expose the crack part, and then using high-strength repair materials (such as epoxy resin) for filling and reinforcement to restore the integrity and stability of the structure.

[0004] Laying waterproof coiled materials is also a common method for crack treatment. Waterproof coiled materials have good waterproof performance and can effectively cover the cracks to prevent water penetration. During the construction process, it is necessary to ensure that the waterproof coiled materials are closely attached to the roof surface and sealed at the edges to achieve the best waterproof effect.

[0005] Existing repair methods (such as using materials like cement mortar and sealant to seal the cracks) can only solve the problem temporarily, but often cannot fundamentally prevent the recurrence of cracks. This is because these methods only stay at the surface treatment level and fail to address the root causes of the cracks. The cracks may reappear within a certain period after repair, resulting in leakage at the crack locations. Based on this, it is necessary to study a method for repairing roof cracks in housing construction. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a method for repairing roof cracks in housing construction, which effectively solves the problems of poor repair effect of existing roof cracks and easy leakage at the crack locations.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: A method for repairing roof cracks in housing construction, including the following steps: Step 1: Draw a crack trace line along the roof crack. The trace line includes a center line and side lines. The center line is drawn along the crack direction, and the side lines are evenly distributed on both sides of the center line. Step 2: Determine the midpoint of the center line. With the midpoint as the center, evenly spread multiple positioning points along the center line direction, and draw reinforcement boundary lines at the positioning points and the midpoint. Step 3: Drill holes at the drawn midpoint and positioning points. Subsequently, using the side lines and the reinforcement boundary lines as positioning lines, open repair grooves on both sides of the crack and open reinforcement grooves within the reinforcement boundary lines. Then clean the reinforcement grooves, repair grooves, and drill holes. Step 4: Configure reinforcement members in the reinforcement grooves and drill holes. The reinforcement members include a central body, a first reinforcement arm, and a second reinforcement arm. On the left and right sides of the central body, there are first and second reinforcement arms that incline upward and downward. In the middle of the central body, there is a sealing plug, and the sealing plug is properly fitted and installed in the drill hole. The central body straddles the middle of the crack, and the reinforcement arms on both sides are respectively on both sides of the crack. There are fixing holes on the first and second reinforcement arms, and bolts are applied in the fixing holes to fix the reinforcement members in the reinforcement grooves. Step 5: Install a repair pipe in the repair groove. The bottom of the repair pipe is provided with multiple repair openings, and its upper part is provided with a grouting port, which is connected to grouting equipment. Step 6: Start the grouting equipment and inject mortar into the repair pipe. The mortar is injected into the crack through the grouting port. Step 7: Finally, construct the leveling layer and waterproof layer.

[0008] Further, construct concrete mortar on both sides of the repair pipe to fix the repair pipe above the crack.

[0009] Further, a waterproof layer is arranged above both the reinforcement member and the repair pipe.

[0010] Further, the ends of the repair pipe are closed, and mounting seats are provided at both ends, and the mounting seats are fixed on the central body.

[0011] Further, the repair openings are in a long strip shape.

[0012] Further, the reinforcement groove is deeper than the repair groove.

[0013] Further, the repair pipe is located in the repair groove, and the mounting seat is fixedly sleeved in the mounting groove of the central body.

[0014] Further, a partition is provided inside the repair pipe, and the partition divides the inside of the repair pipe into multiple independent compartments, and each compartment is provided with a corresponding grouting port and repair opening.

[0015] Further, the central seat, the first reinforcement arm, and the second reinforcement arm are of an integral structure, forming a hollow shell, and a grouting port is provided on the hollow shell.

[0016] Furthermore, a pipe body is provided at the repair opening. The pipe body is internally connected to the repair pipe. During construction, a pipe hole is drilled at the crack in advance, and the pipe body is inserted into the pipe hole.

[0017] The beneficial effects of the above technical solution are as follows: By first drawing the crack trajectory line, determining the midpoint and positioning points, and then performing steps such as drilling and opening repair grooves, the present invention can accurately position and repair cracks, ensuring the accuracy and effectiveness of the repair work.

[0018] The present invention provides a reinforcement structure for the existing roof crack repair. The reinforcement spans across the crack, and its two sides are respectively fixedly connected to the roof on both sides of the crack. At the middle of the connection, a sealing plug is used to block the crack. Each crack is grouted through a repair pipe to ensure the density of grouting, fully fill the gap, and ensure that the void is filled with sealing mortar or sealant.

[0019] At the same time, the two sides of the reinforcement are in an eight-shaped structure, which can have a good fixing effect. When the roof undergoes load displacement, it can resist loads in multiple directions, ensuring the reinforcement effect. At the same time, the reinforcement structure is reserved inside the roof, and the self-strength of the reinforcement is used to resist the load, improving the reinforcement effect of the roof, stabilizing the roof on both sides of the crack, effectively preventing the roof from separating, and enhancing the overall stability and durability of the roof.

[0020] At the same time, in the present invention, the repair pipe is a pipe body structure, which can cover the upper part of the crack, ensuring the connectivity between the grouting port and the crack, enabling the mortar to be smoothly injected into the crack, and ensuring the repair effect on the upper part of the crack. The two sides of the repair pipe are fixed to both sides of the crack through fixing parts, and at the same time, construction mortar is applied on both sides to fix both sides of the repair pipe, enabling the repair pipe to be stably fixed on the roof. After solidification, mortar is poured, improving the construction efficiency and convenience.

[0021] Therefore, the present invention avoids the recurrence of cracks and improves the repair effect by drawing the crack trajectory line, drilling, opening repair grooves, configuring the reinforcement and the repair pipe, etc. Specifically, by configuring the reinforcement that spans across the crack on both sides of the crack, the reinforcement can resist loads from multiple angles, using the eight-shaped reinforcement arms and the sealing plug structure to stabilize the roof and prevent the roof from cracking again. By grouting in zones to ensure the crack is filled densely, the overall stability and durability of the roof are improved, which has high practicality and promotion value, ensuring the long-term safety of the building structure. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is the construction flow chart of the present invention; Figure 2 is the construction structure schematic diagram of the present invention; Figure 3 Schematic diagram of the implementation structure of the reinforcement member; Figure 4 is Figure 3 Bottom view structure diagram of; Figure 5 Schematic diagram of the implementation structure of the repair pipe; Reference numerals: 1 - center line, 2 - side line, 3 - drilling hole, 4 - repair groove, 5 - reinforcement groove, 6 - reinforcement member, 61 - central body, 62 - first reinforcement arm, 63 - second reinforcement arm, 64 - bolt, 65 - sealing plug, 66 - installation groove, 7 - repair pipe, 8 - repair opening, 9 - partition board. Detailed implementation manners

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners: Example 1, this example aims to provide a method for repairing roof cracks in a building. The existing repair effect of roof cracks is poor, which easily leads to leakage at the crack. Based on this, this example provides a method for repairing roof cracks in a building. This method applies reinforcement arms from both sides of the crack. The reinforcement arms limit from both sides, and the main body of the reinforcement member bears the misalignment load of the roof on both sides of the crack, thereby improving the reinforcement effect of the roof and avoiding the roof from cracking again, resulting in leakage at the crack.

[0023] Specifically as Figure 1 shown in the flowchart, a method for repairing roof cracks in a building includes the following steps: Step 1, draw a crack trajectory line along the roof crack. As Figure 2 shown, the trajectory line includes a center line 1 and side lines 2. The center line 1 is drawn along the crack, and the side lines 2 are evenly distributed on both sides of the center line 1; during implementation, as Figure 2 shown, a erasable color pen can be used to draw the side lines 2, such as chalk. Draw the center line 1 along the crack. After the center is drawn, draw the side lines 2 on both sides of the center line 1. The side lines 2 are symmetrically distributed on both sides of the center line 1 to provide a boundary line for grooving.

[0024] Step 2, determine the midpoint of the center line 1. With the midpoint as the center, evenly spread multiple positioning points along the center line 1 direction, and draw a reinforcement boundary line at the positioning points and the midpoint; during implementation, determine the midpoint position by measurement, and evenly disperse and draw the positioning points with the midpoint as the center. The positioning points and the midpoint are both arranged on the crack, and the drawn diameter is slightly larger than the crack width. The reinforcement boundary line straddles both sides of the crack.

[0025] Step 3: Drill holes 3 at the midpoint and positioning points drawn. Select drill pipes of corresponding specifications and drill holes 3 at the midpoint and positioning points. The holes 3 penetrate into the mortar layer. The diameter of the holes 3 should be slightly larger than the crack width to facilitate the splitting of the crack. Subsequently, using the side line 2 and the reinforcement boundary line as positioning lines, repair grooves 4 are opened on both sides of the crack, and reinforcement grooves 5 are opened within the reinforcement boundary line. Subsequently, clean the reinforcement grooves 5, repair grooves 4, and the drilled holes. During implementation, tools such as razors and pneumatic drills are used with the side line 2 as the boundary line to shave off the surface layer, waterproof layer, and part of the mortar layer around the crack. At the same time, grooves are cut on both sides of the crack to form reinforcement grooves 5, as shown in Figure 2 shown in, the reinforcement groove 5 is basically adapted to the shape of the reinforcement member and is fixed to the roof by bolts.

[0026] Step 4: Configure reinforcement members 6 in the reinforcement grooves 5 and drilled holes 3, as shown in Figure 3-4 shown in, the reinforcement member 6 is a metal product with a certain hardness. The reinforcement member 6 includes a central body 61, a first reinforcement arm 62, and a second reinforcement arm 63. On the left and right sides of the central body 61, there are arranged the first reinforcement arm 62 and the second reinforcement arm 63 that are inclined upward and downward. During implementation, the first reinforcement arm 62 is arranged to incline upward, and the second reinforcement arm 63 is arranged to incline downward. In further implementation, the central body 61 is a rectangular structure, and the first reinforcement arm 62 and the second reinforcement arm 63 are both fixed at the four corners of the rectangular structure and face the center of the central body 61.

[0027] A sealing plug 65 is arranged in the middle of the central body 61, and the sealing plug 65 is properly fitted and installed in the drilled hole 3. That is, based on the midpoint and positioning points, it not only serves as the installation point of the reinforcement member 6, but also forms a drilled hole 3. When installing the reinforcement member 6, the drilled hole 3 is also closed, thereby arranging multiple blocking points at intervals on the crack, dividing the crack into multiple independent partitions, facilitating the pressure maintenance of the mortar, and ensuring the density of the mortar perfusion.

[0028] During implementation, the central body 61 straddles the middle of the crack, and the reinforcement arms on both sides are respectively on both sides of the crack. Fixing holes are provided on the first reinforcement arm 62 and the second reinforcement arm 63, and bolts 64 are applied in the fixing holes to fix the reinforcement member 6 in the reinforcement groove 5. The central body 61 is within the repair groove 4, and the eight-shaped reinforcement arms on both sides are distributed in the reinforcement groove 5. The reinforcement arms are fixed by bolts 64, establishing a fixed relationship between the reinforcement arms and the roof on both sides of the crack, and the sealing plug 65 in the middle penetrates into the crack.

[0029] In this embodiment, the reinforcement arms are in an eight-shaped structure, that is, the first reinforcement arm 62 and the second reinforcement arm 63 respectively face the upper and lower directions. When the roof undergoes displacement, it can be stabilized through the reinforcement arms. At the same time, the eight-shaped reinforcement arms can better stabilize with the roof, preventing the roof from separating, thereby achieving the purpose of roof reinforcement through the above structure.

[0030] During implementation, the central body 61, the first reinforcement arm 62, and the second reinforcement arm 63 are of an integral structure, forming a hollow shell, and a grouting port is provided on the hollow shell. Through this implementation method, the weight of the reinforcement member 6 can be reduced, and the mortar can be carried by its main structure to play a supporting role.

[0031] Step Five, install the repair pipe 7 in the repair groove 4. As Figure 5 shown in the figure, a plurality of repair ports 8 are provided at the bottom of the repair pipe 7, and a grouting port is provided at its upper part. The grouting port is connected to the grouting equipment. During implementation, the ends of the repair pipe are closed, and mounting seats are provided at both ends thereof. The mounting seats are fixed on the central body 61. The specific fixing combination method can be bolt fixing or interference fitting, etc., to ensure that both ends of the repair pipe are fixed at both ends of the central body; through the grouting equipment, mortar is filled into the repair pipe to increase the pressure inside the repair pipe, and the internal mortar is injected into the crack through a plurality of grouting ports. In order to adapt to the trend of the crack, the repair pipe can be made of a flexible and relatively strong material.

[0032] In this embodiment, the grouting port is provided at the upper central position of the repair pipe, and the grouting port is connected to the grouting equipment. The grouting equipment can be realized by connecting a peristaltic pump to a material bin. The grouting pump continuously injects mortar into the repair pipe, and the mortar is discharged from the repair port 8 at the bottom of the repair pipe. The repair port 8 is a strip-shaped structure in terms of structure to ensure that the repair port 8 communicates with the crack. When the groove body is opened, the reinforcement groove 5 is deeper than the repair groove 4. The repair pipe is located in the repair groove 4, and the mounting seat is fixedly sleeved in the mounting groove of the central body 61.

[0033] At the same time, a partition plate 9 is provided inside the repair pipe 7. The partition plate divides the inside of the repair pipe 7 into multiple independent partitions. Each partition is provided with a corresponding grouting port and repair port 8. Through partitioning, the repair pipe can be divided into multiple segments. In addition, according to the length of the partition, additional drilling can be adaptively carried out on the crack, and additional sealing plugs 65 are arranged in the drilling holes to make the partition of the crack correspond to the partition of the repair pipe one by one, so as to ensure the density of crack filling.

[0034] Both sides of the repair pipe 7 need to be fixed on both sides of the crack. During specific implementation, concrete mortar is constructed on both sides of the repair pipe to fix the repair pipe on the upper part of the crack, and the repair pipe is stabilized by the mortar and fixed on both sides of the crack after solidification. A grouting port is reserved at the upper part of the repair pipe. After opening the grouting port, the grouting equipment is connected.

[0035] Step Six, start the grouting equipment and inject mortar into the repair pipe 7. The mortar is injected into the crack through the grouting port; Step Seven, remove the repair pipe and the fastener 6 and leave them in the roof. Finally, the leveling layer and the waterproof layer are constructed. The specific method is to first construct the leveling layer and then construct the waterproof layer.

[0036] Therefore, this embodiment achieves effective repair of cracks in the roof of a building by first drawing a crack trajectory line, determining the midpoint and the positioning point, then drilling and opening a repair groove 4, then configuring a reinforcement 6 and installing a repair pipe 7, and finally injecting mortar and removing the repair pipe 7 to repair the surface layer.

[0037] At the same time, this embodiment can stabilize the roof on both sides of the crack and prevent the roof from separating through the eight-shaped reinforcement arm of the reinforcement member 6 and the sealing plug 65 structure, and ensure that the cracks are densely filled through partitioned grouting, thereby fundamentally solving the problem of roof cracks and avoiding the recurrence of cracks. The overall stability and durability of the roof are improved, and it is suitable for a variety of building structures, with high practicality and promotion value.

[0038] Example 2: This example further illustrates the grouting structure of the repair pipe.

[0039] A pipe body is provided at the repair opening 8, and the pipe body is connected with the interior of the repair pipe. During construction, a pipe hole is drilled at the crack in advance, and the pipe body is inserted into the pipe hole. In actual use, although the sealing plug seals the drill hole, a very small gap remains, which allows gas to be discharged, so as to replace the gas in the crack after grouting. As the mortar enters, the gap is gradually blocked.

[0040] In order to improve the grouting effect, in this embodiment, a pipe body is provided at the repair opening 8, and a hole is drilled at the crack so that the pipe body penetrates into the crack for grouting, and the crack is sealed by the main structure of the repair pipe, thereby ensuring the density of the grouting.

[0041] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. The basic concept of the present invention is that by configuring a reinforcement member having a cross-crack on both sides of the crack, the reinforcement member can resist loads from multiple angles, and the roof is stabilized by using an eight-shaped reinforcement arm and a sealing plug structure to prevent the roof from cracking again, thereby improving the crack repair effect. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A method for repairing cracks in a roof of a building, characterized in that: The steps include: Step 1: Draw a crack trajectory line along the direction of the roof crack, wherein the trajectory line includes a center line and side lines, wherein the center line is drawn along the direction of the crack, and the side lines are equidistantly distributed on both sides of the center line; Step 2: determine the midpoint of the center line, take the midpoint as the center, evenly spread multiple positioning points along the center line, and draw reinforcement boundary lines at the positioning points and the midpoint; Step 3: Drill holes at the drawn midpoints and positioning points, then use the side lines and reinforcement boundary lines as positioning lines, open repair grooves on both sides of the cracks, and open reinforcement grooves within the reinforcement boundary lines; then clean the reinforcement grooves, repair grooves and drill holes; Step 4: arrange a reinforcement piece in the reinforcement groove and the drill hole, the reinforcement piece includes a central body, a first reinforcement arm and a second reinforcement arm, the left and right sides of the central body are provided with the first reinforcement arm and the second reinforcement arm inclined upward and downward, the middle part of the central body is provided with a sealing plug, and the sealing plug is adapted to be assembled in the drill hole; the central body spans the middle part of the crack, the reinforcement arms on both sides are respectively located on both sides of the crack, the first reinforcement arm and the second reinforcement arm are provided with fixing holes, bolts are applied in the fixing holes, and the reinforcement piece is fixed in the reinforcement groove; Step 5: Install a repair pipe in the repair groove, wherein a plurality of repair ports are arranged at the bottom of the repair pipe, and a grouting port is arranged at the upper part thereof, and the grouting port is connected to the grouting equipment; Step 6: Start the grouting equipment, inject mortar into the repair pipe, and inject the mortar into the crack through the grouting port; Step seven, finally carry out the construction of leveling layer and waterproof layer.

2. The method for repairing cracks in a building roof according to claim 1, characterized in that: Concrete mortar is constructed on both sides of the repair pipe to fix the repair pipe to the upper part of the crack.

3. The method for repairing cracks in a building roof according to claim 1, characterized in that: A waterproof layer is arranged above the reinforcement member and the repair pipe.

4. The method for repairing cracks in a building roof according to claim 1, characterized in that: The ends of the repair pipe are closed, and mounting seats are arranged at both ends thereof, and the mounting seats are fixed on the central body.

5. The method for repairing cracks in a building roof according to claim 1, characterized in that: The repair opening is in the shape of an elongated strip.

6. The method for repairing cracks in a building roof according to claim 5, characterized in that: The reinforcement groove is deeper than the repair groove.

7. The method for repairing cracks in a building roof according to claim 1, characterized in that: The repair pipe is located in the repair groove, and the mounting seat is fixedly sleeved in the mounting groove of the center body.

8. The method for repairing cracks in a building roof according to claim 1, characterized in that: The interior of the repair pipe is provided with a partition plate, which divides the interior of the repair pipe into a plurality of independent partitions, and each partition is provided with a corresponding grouting port and a repair port.

9. The method for repairing cracks in a building roof according to claim 1, characterized in that: The center seat, the first reinforcement arm and the second reinforcement arm are an integrated structure to form a hollow shell, and a grouting port is arranged on the hollow shell.

10. The method for repairing cracks in a building roof according to any one of claims 1 to 9, characterized in that: A pipe body is arranged at the repair opening, and the pipe body is communicated with the interior of the repair pipe. During construction, a pipe hole is drilled at the crack in advance, and the pipe body is inserted into the pipe hole.

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