Method for repairing loose ruin body through crack grouting and bundling and pulling

Abstract

The invention provides a method for repairing a loose ruins body through crack grouting and bundling and pulling, and belongs to the field of earthen ruins protection. According to the method, the loose ruin body is reinforced in the mode of combining crack grouting and bundling and pulling, the reinforced fiber composite material is adopted for bundling and pulling, the integrity and stability of the loose ruin body can be enhanced, structural cracks of the loose ruin body can be filled in combination with crack grouting, and deformation or movement under the action of external force is prevented; after being dried and cured, the reinforced fiber composite material is high in strength and hardness, can effectively prevent the ruin body from continuing to crack, and has good tensile strength, scouring resistance and wind erosion resistance; compared with a traditional reinforcing method, the method has the advantages that intervention on the ruin body is small, original historical styles and cultural information of the ruin body can be reserved to the maximum extent, and protection and display of the ruin body are facilitated; the structure stability and the anti-seismic property of the reinforced ruin body are remarkably improved, the frequency and the cost of later maintenance and repair are reduced, and the economic burden of cultural relic protection is reduced.

Description

Technical Field

[0001] The invention relates to the field of earthen ruins protection, and in particular to a method for repairing loose ruins by using fissure grouting and binding and pulling. Background Art

[0002] Beacon towers are ancient information transmission systems that play a role in early warning and defense, and often form a military defense system with the Great Wall. After the baptism of time, beacon towers have experienced the effects of natural forces such as rain erosion, wind erosion, and temperature stress, as well as the influence of animal and human activities. Their physical and mechanical properties have declined, and the main body has been damaged, which seriously affects the stability of the beacon tower. Depending on the construction method, the beacon tower can be a pier built with loess using the board-building method, or it can be built with stones in rocky areas, or it can be built with loess piles and bricks. Since the building materials of beacon towers are mostly soil, after being eroded by rain and wind, the main body of the beacon tower will produce structural diseases mainly in the form of cracks, erosion and gullies, which will affect the stability of the beacon tower. Especially for cracks and gullies, the surface soil is continuously lost under the scouring of rainwater, the complete site becomes loose, splits into independent blocks, and eventually the beacon tower is destroyed.

[0003] According to the structural diseases developed in the beacon tower ruins, the main reinforcement methods include PS penetration reinforcement technology, anchor grouting reinforcement technology and ramming support reinforcement technology. Among them, the anchor grouting reinforcement technology tightly links the dangerous blocks with the ruins, and relies on the shear strength of the anchor and the local site to transmit the tensile force of the structure so that the ruins are reinforced to ensure the stability of the ruins and the dangerous blocks. Traditional beacon tower reinforcement methods mostly use brick and stone repairs, soil tamping and other means. Although they can slow down the damage speed of beacon towers to a certain extent, there are often problems such as unstable reinforcement effect and easy cracking again. In addition, traditional methods have a large intervention in the beacon tower itself, which is easy to destroy its original historical features and cultural information. However, the relatively loose blocks of the beacon tower are all dangerous bodies, which no longer have the conditions for anchoring and tamping, and cannot be reinforced using conventional anchor reinforcement technology. Therefore, this method combines the excellent performance of reinforced fiber composite materials and the characteristics of bundling and pulling technology, aiming to effectively reinforce loose beacon towers, protect their historical features and cultural information, and at the same time improve the stability and durability of the structure. It is of great significance to prevent the continued destruction of beacon towers and protect earthen building sites.

[0004] Therefore, how to use anchor grouting reinforcement technology to effectively reinforce loose beacons and improve the stability and durability of the structure has become a technical problem that needs to be urgently solved in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a method for repairing loose ruins by using fissure grouting and binding and pulling. The method provided by the present invention uses a combination of fissure grouting and binding and pulling to repair loose ruins, which can ensure that the structure of the loose ruins is comprehensively reinforced and protected.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0007] The present invention provides a method for repairing a loose ruins body by using crack grouting and binding and pulling, comprising the following steps:

[0008] (1) Use a reinforcing solution to reinforce the soil on both sides of the cracks in the loose ruins, then perform grouting, and finally perform masonry filling to obtain a preliminarily repaired ruins body;

[0009] (2) The initially repaired ruins body obtained in step (1) is subjected to sequential grooving, primer application, fiber-reinforced composite material adhesion and surface sealing to obtain a repaired ruins body.

[0010] Preferably, the reinforcing solution in step (1) is a PS solution, the mass concentration of the reinforcing solution is 3-8%, and the modulus of the reinforcing solution is 3.8.

[0011] Preferably, in step (1), the method of using the reinforcement solution to reinforce the soil on both sides of the cracks in the loose ruins body is spraying; the number of spraying is 1 to 2 times; the depth of penetration of the reinforcement solution into the soil is 10 to 15 mm.

[0012] Preferably, the grouting in step (1) is performed sequentially by burying the grouting pipe, injecting the slurry and pulling out the grouting pipe.

[0013] Preferably, when burying the grouting pipes, the spacing between the grouting pipes is ≥300 mm; the buried grouting pipes are buried along the direction of the cracks; and the grouting pipes are plastic grouting pipes with a diameter of 3 to 8 mm.

[0014] Preferably, the slurry is composed of soil and water; the particle similarity of the soil is greater than 85%; and the water-cement ratio of the slurry is 0.2-0.4.

[0015] Preferably, the slurry used for the patching and filling in step (1) is composed of burned granite slurry and soil; the water-cement ratio of the burned granite slurry is 0.55-0.62; the particle similarity of the soil is greater than 85%; the soluble salt content of the soil is less than 0.3%; and the mass ratio of the burned granite slurry to the soil is 1:(10-20).

[0016] Preferably, in step (2), the primer is applied by firstly infiltrating a reinforcing solution into the groove formed by the trenching, and then applying the primer after the reinforcing solution is dried.

[0017] Preferably, in step (2), the coating thickness of the primer is ≤0.4 mm, and the coating temperature of the primer is ≥5°C.

[0018] Preferably, the surface sealing method in step (2) is: cleaning the gaps, the inside of the grooves and the reinforced fiber composite material, then spraying water in a mist on the grooves and both sides formed by the grooving, and finally coating the repair material on the grooves.

[0019] The present invention provides a method for repairing a loose ruins body by using crack grouting and binding and pulling, comprising the following steps: (1) using a reinforcing solution to reinforce the soil on both sides of the cracks in the loose ruins body, then performing grouting, and finally performing masonry filling to obtain a preliminarily repaired ruins body; (2) sequentially digging grooves, applying primer, pasting reinforced fiber composite materials, and surface sealing the preliminarily repaired ruins body obtained in step (1) to obtain a repaired ruins body. The present invention uses a combination of crack grouting and bundling to reinforce the loose ruins body. The reinforced fiber composite material is used to bundle and pull the originally loose ruins body, which can enhance the integrity and stability of the loose ruins body. The cracks in the loose ruins body structure can be filled in combination with crack grouting to prevent deformation or movement under external force; the reinforced fiber composite material has high strength and hardness after drying and curing, which can effectively prevent the ruins body from continuing to crack, and has good tensile, anti-scouring and wind erosion resistance; compared with the traditional reinforcement method, the present invention has less intervention on the ruins body, can retain its original historical features and cultural information to the greatest extent, and is conducive to the protection and display of the ruins body; the structural stability and seismic performance of the reinforced ruins body are significantly improved, the frequency and cost of later maintenance and repair are reduced, and the economic burden of cultural relics protection is reduced; the present invention solves the problem that the traditional reinforcement and repair method of earthen ruins is not suitable for loose ruins, and provides a new method and idea for the research and engineering application of earthen ruins protection. The results of the embodiment show that after the earthen ruins body is repaired by the method provided by the present invention, the appearance of the earthen ruins body is basically the same as before, and the structural stability is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the present invention for repairing a loose ruins body by using crack grouting and binding and pulling;

[0021] Figure 2 A top view of the invention for repairing a loose ruins body using crack grouting and binding and pulling;

[0022] Figure 3 AA cross-sectional view of the structure provided by the present invention for repairing a loose ruins body by using crack grouting and binding and pulling;

[0023] Figure 4 This is a physical picture of the loose ruins body after restoration according to Example 1 of the present invention;

[0024] Figure 5 This is a physical picture of the loose ruins body after restoration according to Example 2 of the present invention. DETAILED DESCRIPTION

[0025] The present invention provides a method for repairing a loose ruins body by using crack grouting and binding and pulling, comprising the following steps:

[0026] (1) Use a reinforcing solution to reinforce the soil on both sides of the cracks in the loose ruins, then perform grouting, and finally perform masonry filling to obtain a preliminarily repaired ruins body;

[0027] (2) The initially repaired ruins body obtained in step (1) is subjected to sequential grooving, primer application, fiber-reinforced composite material adhesion and surface sealing to obtain a repaired ruins body.

[0028] The invention uses a reinforcing solution to reinforce the soil on both sides of the crack in the loose ruins body, then performs grouting, and finally performs masonry filling to obtain a preliminarily repaired ruins body.

[0029] In the present invention, before using the reinforcement solution to reinforce the soil on both sides of the cracks in the loose ruins body, the present invention preferably performs temporary support on the loose ruins body and cleans the cracks.

[0030] The present invention has no special limitation on the specific method of temporary support. Flexible measures are used to bundle the loose ruins or to support them in other ways, so as to ensure construction safety and sufficient working space during the crack grouting and bundling and pulling repair.

[0031] The present invention has no special limitation on the specific operation of crack cleaning, and high-pressure air blowing or the like can be used to remove debris or soil debris in the crack as much as possible. The present invention removes debris or soil debris in the crack by crack cleaning, which can prevent the debris or soil debris in the crack from affecting the repair effect.

[0032] In the present invention, the reinforcing solution is preferably a PS solution; the mass concentration of the reinforcing solution is preferably 3-8%; the modulus of the reinforcing solution is preferably 3.8. The present invention uses a reinforcing solution to reinforce the soil on both sides of the crack, thereby improving the strength of the soil and avoiding problems such as cracking during the grouting process; by controlling the concentration of the reinforcing solution, it is possible to avoid weakening of the reinforcement effect, and to avoid weakening of permeability due to excessive concentration and excessive difference in soil strength between the permeable area and the non-permeable area.

[0033] As an embodiment, the mass concentration of the reinforcement solution may be 3%, 4%, 5%, 6%, 7% or 8%.

[0034] In the present invention, the method of using the reinforcing solution to reinforce the soil on both sides of the cracks in the loose ruins is preferably spraying; the number of spraying is preferably 1 to 2 times; the depth of the reinforcing solution penetrating into the soil is preferably 10 to 15 mm. The present invention can further improve the reinforcement effect by controlling the depth of the reinforcing solution penetrating into the soil.

[0035] As an implementation manner, the penetration depth of the reinforcement solution into the soil can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm or 15 mm.

[0036] In the present invention, the grouting is preferably performed sequentially by burying the grouting pipe, injecting the slurry and pulling out the grouting pipe.

[0037] In the present invention, the spacing of the buried grouting pipes is preferably ≥300 mm. In the present invention, the buried grouting pipes are preferably buried along the trend of the cracks; the grouting pipes are preferably plastic grouting pipes with a diameter of 3 to 8 mm.

[0038] As an implementation mode, the spacing between the grouting pipes when burying the grouting pipes can be 300mm, 350mm, 400mm, 450mm or 500mm; the diameter of the grouting pipes can be 3mm, 4mm, 5mm, 6mm, 7mm or 8mm.

[0039] In the present invention, when burying the grouting pipe, the burial depth of the grouting pipe is preferably such that the two sides of the through crack are buried at different heights at the same time; when burying the grouting pipe, the distance between two adjacent grouting pipes on both sides is preferably ≤200mm; when burying the grouting pipe, the overlapping length of the ends of the adjacent grouting pipes on both sides is preferably ≥100mm. The present invention can ensure that the slurry can fill the cracks in the subsequent grouting process by controlling the parameters when burying the grouting pipe.

[0040] As an implementation mode, when burying the grouting pipes, the distance between two adjacent grouting pipes on both sides can be 50mm, 100mm, 150mm or 200mm; when burying the grouting pipes, the overlapping length of the ends of the adjacent grouting pipes on both sides can be 100mm, 150mm, 200mm, 250mm or 300mm.

[0041] In the present invention, the composition of the slurry used for grouting is preferably soil and water; the water-cement ratio of the slurry is preferably 0.2-0.4. In the present invention, the particle similarity of the soil is preferably >85%, more preferably 88-95%, and further preferably 90-93%. In the present invention, the particle similarity of the soil refers to the particle size similarity of the soil particles when the particle size is 0.5mm<d≤2mm, 0.25mm<d≤0.5mm, 0.075mm<d≤0.25mm, 0.005mm<d≤0.075mm and d≤0.005mm respectively, which is >85%. The present invention can ensure a good sealing effect by controlling the composition of the slurry; by controlling the particle size of the soil, the slurry can be made more similar to the soil particle distribution of the ruins, thereby improving the repair effect.

[0042] As an embodiment, the water-cement ratio of the slurry used for grouting may be 0.2, 0.25, 0.3, 0.35 or 0.4.

[0043] The present invention has no special limitation on the specific operation of the grouting, and the operation can be performed according to the technical common sense of those skilled in the art. In the present invention, when the size of the fissure is large, the present invention preferably first uses soil blocks for filling, and then performs grouting. The present invention has no special limitation on the size of the soil blocks, and the selection can be made according to the technical common sense of those skilled in the art. The present invention can reduce the amount of slurry used in grouting by using soil blocks for filling, optimize the process and reduce costs.

[0044] In the present invention, the grouting method is preferably continuous pouring from bottom to top; during the grouting process, it is preferred to ensure smooth exhaust from the crack opening; the grouting pressure is preferably normal pressure grouting; when slurry overflows from the adjacent upper grouting pipe, the present invention preferably stops grouting, blocks the grouting hole, and then grouts into the upper grouting pipe; when the size of the crack is less than 5mm, the present invention preferably increases the water-cement ratio of the slurry to reduce the viscosity of the slurry and increase the pourability; the present invention preferably stops grouting when slurry overflows from the crack opening or the exhaust pipe stops exhausting. The present invention does not have any special limitation on the one-time grouting amount during the grouting. Those skilled in the art can perform grouting according to actual conditions. Generally, different crack interval grouting methods are used to prevent other problems caused by excessive grouting.

[0045] The present invention has no special limitation on the specific operation of pulling out the grouting pipe, and the grouting pipe can be pulled out in a conventional manner without affecting the ruins.

[0046] In the present invention, the composition of the slurry used for the patching and filling is preferably burnt granite slurry and soil; the water-cement ratio of the burnt granite slurry is preferably 0.55-0.62; the particle similarity of the soil is preferably >85%; the soluble salt content of the soil is preferably <0.3%; the mass ratio of the burnt granite slurry to the soil is preferably 1:(10-20). The present invention can improve the effect of patching and filling by controlling the composition of the slurry used for patching and filling.

[0047] As an embodiment, the water-cement ratio of the burned granite slurry can be 0.55, 0.56, 0.57, 0.58, 0.59, 0.6, 0.61 or 0.62; the mass ratio of the burned granite slurry to soil can be 1:10, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19 or 1:20.

[0048] The present invention has no special limitation on the method of preparing the slurry used for the patching and filling, and the slurry can be mixed and stirred evenly. In the present invention, the slurry used for the patching and filling can be used as soon as it is stirred, and is used up before the initial setting, so as to prevent foreign matter from mixing into the slurry.

[0049] The present invention has no special limitation on the specific operation of the patching and filling, and the operation well known to those skilled in the art can be adopted to ensure that the soil for patching has sufficient strength and the safety of the wall during the patching process. The present invention can fill the gap after the grouting pipe is pulled out through patching and filling.

[0050] After obtaining the initially repaired ruins body, the present invention sequentially digs grooves, applies primer, adheres reinforced fiber composite materials and seals the surface of the initially repaired ruins body to obtain the repaired ruins body.

[0051] In the present invention, the preferred method of digging grooves is: determining the width, quantity and position of the reinforced fiber composite material according to the height of the initially repaired ruins body, digging grooves of equal width and 10 cm depth after determining the fixed position, then cleaning the surface dust and debris, and grinding and smoothing the uneven surface areas.

[0052] In the present invention, the equal width is preferably adjusted according to the width of the reinforced fiber composite material and the site conditions. As an embodiment, the equal width can be 10 cm, 20 cm or 30 cm.

[0053] In the present invention, the soil blocks remaining after the grooves are excavated are preferably used for surface sealing.

[0054] In the present invention, the primer is preferably applied by firstly infiltrating a reinforcing solution into the groove formed by the trenching, and then applying the primer after the reinforcing solution is dried.

[0055] In the present invention, the reinforcing solution is preferably a PS solution; the mass concentration of the PS solution is preferably 3-5%; the modulus of the PS solution is preferably 3.8; and the penetration depth of the PS solution is preferably 5-15 mm. The present invention utilizes the reinforcing solution to penetrate the groove to reinforce the soil in the groove, thereby preventing the soil dust in the groove from penetrating into the groove and affecting the quality of the colloid when applying the primer.

[0056] As an implementation manner, the mass concentration of the PS solution may be 3%, 4% or 5%; the penetration depth of the PS solution may be 5 mm, 8 mm, 10 mm, 12 mm or 15 mm.

[0057] In the present invention, the primer is preferably epoxy resin, more preferably epoxy resin carbon fiber glue. In the present invention, the coating thickness of the primer is preferably ≤0.4mm, more preferably 0.1-0.4mm, and further preferably 0.2-0.3mm; the coating temperature of the primer is preferably ≥5°C, and more preferably determined according to the construction and use temperature of the primer. The present invention has no special restrictions on the specific source of the primer, and commercially available epoxy resins well known to those skilled in the art can be used. The present invention has no special restrictions on the specific operation of the coating, and there can be no problems such as missing coating, flowing or bubbles.

[0058] In the present invention, the bonding of the reinforced fiber composite material is preferably carried out immediately after the primer is dry to the touch.

[0059] In the present invention, the reinforced fiber composite material is preferably carbon fiber cloth; the bonding surface of the reinforced fiber composite material is required to be flat, clean and dry.

[0060] In the present invention, the operation of pasting the reinforced fiber composite material is preferably: coating the pasting surface of the reinforced fiber composite material with an adhesive resin, then lightly pressing it to the position to be pasted with a hand, then lightly scraping it several times with a rubber or plastic scraper, and finally rolling it back and forth several times along the direction of the reinforced fiber composite material to squeeze out the bubbles, and using a leveling material to repair the corners into a smooth arc.

[0061] In the present invention, when the reinforced fiber composite material is pasted, the overlap length in the force-bearing direction is preferably ≥30 cm; when the reinforced fiber composite material is pasted, the overlap length in the non-force-bearing direction is preferably ≥5 cm.

[0062] In the present invention, when the reinforced fiber composite material is pasted, the overlapping parts between the layers are not located on the same line; the staggered distance of the overlapping parts between the layers is preferably ≥50 cm.

[0063] In the present invention, the radius of the circular arc is preferably ≥30 mm; and the reinforced fiber composite material preferably does not bend along the fiber direction.

[0064] In the present invention, after the bonding of the reinforced fiber composite material is completed, the present invention preferably checks the bonding effect, and uses a perforated needle tube to inject glue to fill the area with bubbles.

[0065] In the present invention, after the bonding of the reinforced fiber composite material is completed, it is preferred to also include curing and curing; when the temperature of the curing and curing is 20-25°C, the time of the curing and curing is preferably ≥3 days; when the temperature of the curing and curing is 10-15°C, the time of the curing and curing is preferably ≥7 days; during the first 24 hours of curing and curing, it is preferred to prevent rain, moisture or damage by hard objects.

[0066] In the present invention, the surface sealing method is preferably: cleaning the gaps, the inside of the grooves and the reinforced fiber composite material, then spraying water in a mist form on the grooves and both sides formed by the grooving, and finally coating the repair material on the grooves.

[0067] In the present invention, the cleaning is preferably carried out by using a repair knife, a bamboo brush and an ear cleaning ball in sequence. The present invention can remove floating dust and sand particles through cleaning.

[0068] In the present invention, the water spraying is preferably carried out by using a watering can; the water spraying is preferably carried out in small amounts and multiple times. The present invention can avoid erosion and runoff through the above method, allowing it to penetrate evenly and ensuring that the repair material has sufficient adhesion to the original ruins.

[0069] In the present invention, the composition of the repair material is preferably burnt gravel, soil and water; the particle grading of the soil is preferably the same as the particle grading of the ruins soil; the soluble salt content of the soil is preferably <0.3%; the mass ratio of the burnt gravel and soil is preferably 1:(10-20), more preferably 1:15; the water-cement ratio of the repair material is preferably 0.2-0.5, more preferably 0.3.

[0070] In the present invention, the method of applying the repair material is preferably to apply the repair material in layers in the groove multiple times with a repair knife, and apply pressure to ensure that the repair material is firmly bonded to the site. The present invention can prevent rainwater and wind and sand abrasion from invading again and causing more serious damage by applying the repair material in the above manner.

[0071] The schematic diagram of the structure of the present invention using crack grouting and binding to repair loose ruins is as follows: Figure 1 shown. Figure 1 In the figure, 1 is a reinforced fiber composite material, 2 is a slurry injector, 3 is a grouting pipe, 4 is a crack in the loose ruins body, and 5 is the loose ruins body. Figure 1 It can be seen that the present invention injects grout into the cracks of the loose ruins body through the grouting pipe, and then reinforces the loose ruins body with the reinforced fiber composite material, thereby reinforcing the scattered structure of the ruins and improving the stress performance.

[0072] The top view of the method of repairing a loose ruins body by using crack grouting and binding and pulling provided by the present invention is as follows Figure 2 shown. Figure 2 In the figure, 1 is a reinforced fiber composite material, and 4 is a crack in the loose ruins body. Figure 2 It can be seen that the reinforced fiber composite material is wrapped around the surface of the loose ruins body to achieve reinforcement.

[0073] The AA cross-sectional view of the structure provided by the present invention using crack grouting and binding and pulling to repair loose ruins is as follows: Figure 3 shown. Figure 3 In the figure, 2 is a grouting injector, 3 is a grouting pipe, and 6 is a masonry filling layer. Figure 3 It can be seen that after the cracks are grouted by the slurry injector and the grouting pipe, the gaps are filled by masonry filling.

[0074] The present invention, through understanding and recognizing the structure, shape, lines and colors of the ruins, repairs and seals the surface wrapped with reinforced fiber composite materials in accordance with the original ruins wall, making the surface as uneven as possible and the lines smooth and natural, to prevent the shrinkage and cracking of the mud-sealed area, which would cause greater damage. The surface should be dry-sprinkled with clay particles to reduce the rate of surface moisture loss and make the surface consistent with the original rammed earth wall.

[0075] The present invention uses a combination of crack grouting and bundling and pulling to reinforce the loose ruins body, and uses reinforced fiber composite materials to bundle and pull the originally loose ruins body, which can enhance the integrity and stability of the loose ruins body, and can fill the structural cracks of the loose ruins body in combination with crack grouting to prevent deformation or movement under the action of external force; the reinforced fiber composite material has high strength and hardness after drying and curing, which can effectively prevent the ruins body from continuing to crack, and has good tensile strength, anti-scouring and wind erosion resistance; compared with traditional reinforcement methods, the present invention has less intervention on the ruins body, can retain its original historical features and cultural information to the greatest extent, and is conducive to the protection and display of the ruins body; the structural stability and seismic resistance of the reinforced ruins body are significantly improved, the frequency and cost of later maintenance and repair are reduced, and the economic burden of cultural relics protection is reduced; the present invention solves the problem that traditional reinforcement and repair methods for earthen ruins are not suitable for loose ruins, and provides a new method and idea for the research and engineering application of earthen ruins protection.

[0076] The technical solutions in the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0077] Example 1

[0078] A method for repairing loose ruins using crack grouting and binding and pulling, comprising the following steps:

[0079] (1) First, flexible measures are used to temporarily support the loose ruins body, and then high-pressure air is used to blow away the debris and soil debris in the cracks, and then a reinforcing solution is used to reinforce the soil on both sides of the cracks in the loose ruins body, and then grouting pipes are buried, grouting and pulling out the grouting pipes are carried out in sequence, and finally masonry filling is carried out to obtain a preliminarily repaired ruins body; the reinforcing solution is a PS solution, the mass concentration of the reinforcing solution is 5%, and the modulus of the reinforcing solution is 3.8; the reinforcement method is spraying, the number of spraying is 2 times, and the depth of the reinforcing solution penetrating into the soil is 15mm; when the grouting pipes are buried, the spacing of the grouting pipes is 300mm, and the grouting pipes are plastic grouting pipes with a diameter of 5mm. When the grouting pipes are buried, the burial depth of the grouting pipes requires that both sides of the through cracks be buried at different heights at the same time, and when the grouting pipes are buried, the two sides are relatively close. The distance between two adjacent grouting pipes is 200mm. When burying the grouting pipes, the overlapping length of the ends of the adjacent grouting pipes on both sides is 100mm. The composition of the slurry used for grouting is soil and water, the particle similarity of the soil is 90%, and the water-cement ratio of the slurry is 0.3. The grouting method is intermittent grouting from bottom to top. During the grouting process, ensure smooth exhaust from the crack opening, and the grouting is normal pressure grouting. When slurry overflows from the adjacent upper grouting pipe, stop grouting, plug the grouting hole, and then grout into the upper grouting pipe. Stop grouting when slurry overflows from the crack opening. The composition of the slurry used for the masonry filling is burned granite slurry and soil; the water-cement ratio of the burned granite slurry is 0.6, the particle similarity of the soil is 90%, the soluble salt content of the soil is <0.3%, and the mass ratio of burned granite slurry to soil is 1:15

[0080] (2) Grooving the initially repaired ruins body obtained in step (1), infiltrating the grooves formed by the grooves, applying a primer after the reinforcing solution is dry, pasting the reinforced fiber composite material immediately after the primer is dry to touch, then curing and curing, and finally sealing the surface to obtain the repaired ruins body; the groove digging method is: determining the width, quantity and position of the reinforced fiber composite material according to the height of the initially repaired ruins body, digging grooves of equal width (20 cm) and depth of 10 cm after determining the fixed position, then cleaning the surface dust and debris, and grinding and smoothing the uneven parts of the surface; The reinforcing solution is a PS solution, the mass concentration of the reinforcing solution is 5%, and the modulus of the reinforcing solution is 3.8; the reinforcement method is spraying, the number of spraying is 1, and the depth of the reinforcing solution penetrating into the soil is 10mm; the primer is a resin, the coating thickness of the primer is 0.4mm, and the coating temperature of the primer is 20°C; the reinforced fiber composite material is a carbon fiber cloth, the bonding surface of the carbon fiber cloth is flat, clean and dry, and the operation of pasting the reinforced fiber composite material is: apply the bonding resin to the bonding surface of the reinforced fiber composite material, then press it lightly on the position to be pasted by hand, and then scrape it lightly several times with a rubber or plastic scraper Finally, roll it back and forth several times along the direction of the reinforced fiber composite material to squeeze out the bubbles, and use leveling materials to repair the corners into an arc with a radius of 30mm; when pasting the reinforced fiber composite material, the overlap length in the force direction is 30cm; when pasting the reinforced fiber composite material, the overlap length in the non-force direction is 5cm; when pasting the reinforced fiber composite material, the overlap parts between the layers are not located on the same line, and the staggered distance between the overlap parts of the layers is 50cm; the curing temperature is 25°C, the curing time is 3 days, and the surface is protected from rain, moisture and hard objects in the first 24 hours of curing; the surface sealing The method is: use a repair knife, a bamboo brush and an ear cleaning ball to clean the gaps, grooves and reinforced fiber composite materials in turn, then use a spray pot to spray water in a mist form on the grooves and both sides formed by the grooving in small amounts and multiple times, and finally apply the repair material to the grooves; the composition of the repair material is burnt gravel, soil and water, the particle gradation of the soil is the same as the particle gradation of the ruins soil, the soluble salt content of the soil is <0.3%, the mass ratio of burnt gravel and soil is 1:15, and the water-cement ratio of the repair material is 0.3; the method of applying the repair material is to apply the repair material in layers in the grooves with a repair knife for multiple times, and apply pressure to ensure that the repair material is firmly bonded to the ruins body.

[0081] The actual picture of the loose ruins after restoration in Example 1 of the present invention is as follows Figure 4 As shown. Figure 4 It can be seen that the appearance of the ruins after restoration is basically the same as before restoration, and slurry and other materials are injected into the interior of the ruins through grooves and grouting pipes. The grouting pipes can be removed and the repair material can be applied later.

[0082] Example 2

[0083] A method for repairing loose ruins using crack grouting and binding and pulling, comprising the following steps:

[0084] (1) First, flexible measures are used to temporarily support the loose ruins body, and then high-pressure air is used to blow away the debris and soil debris in the cracks, and then a reinforcing solution is used to reinforce the soil on both sides of the cracks in the loose ruins body, and then grouting pipes are buried, grouting and pulling out the grouting pipes are carried out in sequence, and finally masonry filling is carried out to obtain a preliminarily repaired ruins body; the reinforcing solution is a PS solution, the mass concentration of the reinforcing solution is 5%, and the modulus of the reinforcing solution is 3.8; the reinforcement method is spraying, the number of spraying is 2 times, and the depth of the reinforcing solution penetrating into the soil is 15mm; when the grouting pipes are buried, the spacing of the grouting pipes is 300mm, and the grouting pipes are plastic grouting pipes with a diameter of 5mm. When the grouting pipes are buried, the burial depth of the grouting pipes requires that both sides of the through-cracks be buried at different heights at the same time, and when the grouting pipes are buried, both sides are The distance between two adjacent grouting pipes is 200mm, and the overlapping length of the ends of the adjacent grouting pipes on both sides when the grouting pipes are buried is 150mm; the composition of the slurry used for grouting is soil and water, the particle similarity of the soil is 92%, and the water-cement ratio of the slurry is 0.3; the grouting method is continuous pouring from bottom to top, and during the grouting process, it is ensured that the gas is smoothly exhausted from the crack opening, and the grouting is normal pressure grouting; when the slurry overflows from the adjacent upper grouting pipe, the grouting is stopped, and the grouting hole is blocked, and then the grouting is injected into the upper grouting pipe, and the grouting is stopped when the slurry overflows from the crack opening; the composition of the slurry used for the masonry filling is burned granite slurry and soil; the water-cement ratio of the burned granite slurry is 0.6, the particle similarity of the soil is 92%, the soluble salt content of the soil is <0.3%, and the mass ratio of the burned granite slurry to the soil is 1:15

[0085] (2) Grooving the initially repaired ruins body obtained in step (1), infiltrating the grooves formed by the grooves, applying a primer after the reinforcing solution is dry, pasting the reinforced fiber composite material immediately after the primer is dry to touch, then curing and curing, and finally sealing the surface to obtain the repaired ruins body; the groove digging method is: determining the width, quantity and position of the reinforced fiber composite material according to the height of the initially repaired ruins body, digging grooves of equal width (20 cm) and depth of 10 cm after determining the fixed position, then cleaning the surface dust and debris, and grinding and smoothing the uneven parts of the surface; The reinforcing solution is a PS solution, the mass concentration of the reinforcing solution is 5%, and the modulus of the reinforcing solution is 3.8; the reinforcement method is spraying, the number of spraying is 1, and the depth of the reinforcing solution penetrating into the soil is 10mm; the primer is a resin, the coating thickness of the primer is 0.4mm, and the coating temperature of the primer is 20°C; the reinforced fiber composite material is a carbon fiber cloth, the bonding surface of the carbon fiber cloth is flat, clean and dry, and the operation of pasting the reinforced fiber composite material is: apply the bonding resin to the bonding surface of the reinforced fiber composite material, then press it lightly on the position to be pasted by hand, and then scrape it lightly several times with a rubber or plastic scraper, Finally, roll back and forth several times along the direction of the reinforced fiber composite material to squeeze out the bubbles, and use leveling materials to repair the corners into an arc with a radius of 30mm; when pasting the reinforced fiber composite material, the overlap length in the force direction is 30cm; when pasting the reinforced fiber composite material, the overlap length in the non-force direction is 5cm; when pasting the reinforced fiber composite material, the overlap parts between the layers are not located on the same line, and the staggered distance between the overlap parts of the layers is 50cm; the curing temperature is 15°C, the curing time is 7 days, and the surface is protected from rain, moisture and hard objects in the first 24 hours of curing; the surface sealing The method is: use a repair knife, a bamboo brush and an ear cleaning ball to clean the gaps, grooves and reinforced fiber composite materials in turn, then use a spray pot to spray water in a mist form on the grooves and both sides formed by the grooving in small amounts and multiple times, and finally apply the repair material to the grooves; the composition of the repair material is burnt gravel, soil and water, the particle gradation of the soil is the same as the particle gradation of the ruins soil, the soluble salt content of the soil is <0.3%, the mass ratio of burnt gravel and soil is 1:15, and the water-cement ratio of the repair material is 0.3; the method of applying the repair material is to apply the repair material in layers in the grooves with a repair knife for multiple times, and apply pressure to ensure that the repair material is firmly bonded to the ruins body.

[0086] The restored ruins obtained in Example 2 of the present invention are as follows: Figure 5 As shown. Figure 5 It can be seen that the appearance of the restored site is basically the same as before the restoration, and the structural strength of the site has been greatly increased.

[0087] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for repairing a loose ruins body using crack grouting and binding and pulling, comprising the following steps: (1) Use a reinforcing solution to reinforce the soil on both sides of the cracks in the loose ruins, then perform grouting, and finally perform masonry filling to obtain a preliminarily repaired ruins body; (2) The initially repaired ruins body obtained in step (1) is subjected to sequential grooving, primer application, fiber-reinforced composite material adhesion and surface sealing to obtain a repaired ruins body.

2. The method according to claim 1, characterized in that In the step (1), the reinforcing solution is a PS solution, the mass concentration of the reinforcing solution is 3-8%, and the modulus of the reinforcing solution is 3.

8.

3. The method according to claim 1, characterized in that The method of using the reinforcement solution in step (1) to reinforce the soil on both sides of the cracks in the loose ruins body is spraying; the number of spraying is 1 to 2 times; the depth of penetration of the reinforcement solution into the soil is 10 to 15 mm.

4. The method according to claim 1, characterized in that The grouting in step (1) is performed sequentially by burying the grouting pipe, injecting slurry and pulling out the grouting pipe.

5. The method according to claim 4, characterized in that When burying the grouting pipes, the spacing between the grouting pipes is ≥300mm; the buried grouting pipes are buried along the trend of the cracks; the grouting pipes are plastic grouting pipes with a diameter of 3 to 8mm.

6. The method according to claim 4, characterized in that The slurry is composed of soil and water; the particle similarity of the soil is greater than 85%; and the water-cement ratio of the slurry is 0.2-0.

4.

7. The method according to claim 1, characterized in that The slurry used for the patching and filling in step (1) is composed of burned granite slurry and soil; the water-cement ratio of the burned granite slurry is 0.55-0.62; the particle similarity of the soil is greater than 85%; the soluble salt content of the soil is less than 0.3%; the mass ratio of the burned granite slurry to the soil is 1:(10-20).

8. The method according to claim 1, characterized in that In the step (2), the primer is applied by firstly infiltrating a reinforcing solution into the groove formed by the trenching, and then applying the primer after the reinforcing solution is dried.

9. The method according to claim 1, characterized in that: In the step (2), the coating thickness of the primer is ≤0.4 mm, and the coating temperature of the primer is ≥5°C.

10. The method according to claim 1, characterized in that The surface sealing method is: cleaning the gaps, the inside of the grooves and the reinforced fiber composite material, then spraying water in a mist form on the grooves and both sides formed by the grooving, and finally coating the repair material on the grooves.

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