A device for reinforcing annular prestressed material filled in a high-pressure elastic tube

Abstract

The present invention relates to a device for annular prestress reinforcement filled with solidified materials in a high-pressure elastic tube, comprising: a reaction ring and an elastic tube; the reaction ring is arranged on the inner side or outer side of a structure to be prestressed, the elastic tube is arranged between the reaction ring and the structure to be prestressed, the elastic tube has a slurry inlet and a slurry (gas) outlet, and the elastic tube can be filled with consolidation slurry to expand the elastic tube; the elastic tube presses the reaction ring and the structure to be prestressed; after the consolidation slurry is poured into the elastic tube and consolidated, the reaction ring provides a reaction force, and is transmitted to the structure to be prestressed through the elastic tube and the consolidated consolidation slurry inside. The present invention can not cause damage to the original structure, can be manufactured in a factory, can deal with adverse factors such as uneven structures, effectively restore or improve the bearing capacity of columns, rings (tubes) components, improve engineering quality, eliminate the processing and anchoring construction, reduce construction time, and is not affected by environmental humidity.

Description

Technical Field

[0001] The invention relates to a device for reinforcing annular prestressed material filled in a high-pressure elastic tube, belonging to the technical field of reinforcing columns, rings, tubes and tunnel structures. Background Art

[0002] Prestressed structures are made by pre-deforming high-strength materials to produce pre-compressive stress or pre-tensile stress on the structure. This can give full play to the tensile properties of materials such as steel strands, carbon fibers, and carbon fiber plates, and the compressive properties of materials such as concrete, and avoid cracking of materials such as concrete.

[0003] Generally, prestressed high-strength materials are equipped with anchoring ends and tensioning ends. When applying prestress, the anchoring ends and tensioning ends need to be fixed to the original prestressed structure through chemical anchor bolts and structural adhesives, which can easily damage the original prestressed structure and require a large amount of work. During the prestressing process, relative displacement occurs between the material and the structure, frictional resistance exists, and friction damage to the material occurs. Summary of the invention

[0004] The technical problem to be solved by the present invention is: to overcome the disadvantages of the prior art and to provide a device for filling a high-pressure elastic tube with solidifying material to realize annular prestress reinforcement of structures such as columns and rings.

[0005] In order to solve the above technical problems, the technical solution proposed in the present invention is: a device for annular prestressing reinforcement by filling solidifying material in a high-pressure elastic tube, comprising: a reaction ring and an elastic tube; the reaction ring is arranged on the inner side or outer side of the structure to be prestressed, the elastic tube is arranged between the reaction ring and the structure to be prestressed, the elastic tube has a slurry inlet and a slurry outlet, and the elastic tube can be poured with consolidation slurry to expand the elastic tube; the elastic tube presses the reaction ring and the structure to be prestressed; after the consolidation slurry is poured into the elastic tube and consolidated, the reaction ring provides a reaction force, and transmits it to the structure to be prestressed through the elastic tube and the consolidated consolidation slurry inside; the elastic tube is composed of an inflatable tube and a high-strength mesh cover thereon, and the reaction ring is a steel ring, a carbon fiber plate ring, a reinforced concrete ring or a biological fiber ring.

[0006] A further improvement of the above scheme is that the structure to be prestressed includes components of cylindrical, annular, tubular, tunnel, and prismatic structures.

[0007] A further improvement of the above solution is that the elastic tube can be vacuumed or exhausted before being arranged between the reaction ring and the structure to be prestressed.

[0008] A further improvement of the above scheme is that the consolidation slurry includes a foaming material.

[0009] A further improvement of the above scheme is that the consolidation slurry is poured into the elastic tube by a high-pressure filling slurry device.

[0010] A further improvement of the above scheme is that the elastic tube can be made of two layers, inner and outer, and the outer layer is used as a secondary pressure supplement or to overcome the loss of prestress.

[0011] The device for reinforcing the annular prestressed structure by filling the solidified material in the high-pressure elastic tube provided by the present invention utilizes the principle that the fluidized slurry can transmit pressure in a closed container or pipeline. The elastic tube has a tendency to change in a circular direction when the fluidized slurry is filled with a high-pressure resistant elastic tube. If this tendency is constrained by an obstruction, pressure will be generated on the obstruction, and the pressure within a certain range is equal to the pressure in the tube. The high-pressure resistant elastic tube is filled with a consolidation material of a certain strength and modulus to avoid aging and damage of the high-pressure resistant tube; internal and external prestress can be provided to the tube (ring); through the consolidation material, prestress can be continuously and safely provided to the structure; the casing formed by the multi-layer composite can realize the supplementary grouting according to the change to offset the stress loss; compared with the existing various construction methods, the present invention can not cause damage to the original structure, can produce products in a factory, deal with unfavorable factors such as uneven structures, effectively restore or improve the bearing capacity of the column, ring (tube) structure, improve the quality of the project, eliminate the processing and buried anchor construction, reduce the construction time, and is not affected by environmental humidity. If used as a water-stopping measure, it can be used in conjunction with waterstop strips, elastic caulking materials, or filled with consolidation materials with strong deformation ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a structural schematic diagram of a preferred embodiment 1 of the present invention.

[0014] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure from the middle side.

[0015] Figure 3 yes Figure 2 Schematic diagram of the loading state structure.

[0016] Figure 4 It is a structural schematic diagram of a preferred embodiment 2 of the present invention.

[0017] Figure 5 It is a structural schematic diagram of a preferred embodiment 3 of the present invention.

[0018] Figure 6 It is a structural schematic diagram of a preferred embodiment 4 of the present invention. DETAILED DESCRIPTION Example 1

[0019] The device of this embodiment of the high pressure elastic tube is filled with solidified material to reinforce the annular prestress, such as Figure 1 and Figure 2 , including: a reaction ring 3 and an elastic tube 2; the reaction ring 3 is arranged outside the structure 1 to be prestressed, the elastic tube 2 is arranged between the reaction ring 3 and the structure 1 to be prestressed, the elastic tube 2 has a slurry inlet 21 and a slurry outlet 22, the elastic tube 2 can be filled with consolidation slurry and expand the elastic tube; the elastic tube 2 presses the reaction ring 3 and the structure 1 to be prestressed; after the consolidation slurry is poured into the elastic tube 2 and consolidated, the reaction ring 3 provides a reaction force, and is transmitted to the structure 1 to be prestressed through the elastic tube 2 and the consolidated consolidation slurry inside. The elastic tube 2 is composed of an inflatable tube and a high-strength mesh cover covering it.

[0020] This embodiment 1 takes a tubular structure as an example. Figure 1 Specifically, the structure to be prestressed may be a component of a variety of structures such as a cylinder, a ring, a tube, a tunnel, a prism, etc.

[0021] Specifically, the elastic tube 2 is placed between the annular closed reaction ring 3 and the structure 1 to be prestressed, wherein the elastic tube 2 has a slurry inlet 21 and a slurry outlet 22, and a valve; then, a high-pressure filling slurry device is used to fill the elastic tube 2 with high-pressure consolidation material so that the structure 1 to be prestressed can withstand pressure; finally, the pressed slurry material reaches the design strength after consolidation, and can continuously provide prestress to the structure 1 to be prestressed.

[0022] like Figure 3 After providing circumferential restraint, the integrity of the pipeline can be improved, and the ability to resist internal and external pressures and longitudinal compressive strength can be improved. This method is different from the traditional circumferential prestressing method, and can avoid the problems of anchoring end and tensioning end, without friction resistance and prestress loss of anchor anchor.

[0023] When the elastic tube 2 is annular, or one end is closed, the slurry inlet 21 and the slurry outlet can be combined into one.

[0024] The elastic tube 2 can be reduced in volume and flattened by vacuuming, thereby making it easier to arrange and fill.

[0025] Foaming materials can be added to the consolidation slurry to further increase the volume after consolidation, thereby applying pressure more effectively.

[0026] The reaction ring 3 in this embodiment is a steel ring. Depending on the site requirements, a concrete ring may also be used; or materials that can be stretched and provide tension, such as steel wire, steel strand, carbon fiber cloth, carbon fiber plate, biological fiber (bamboo, hemp, etc.). Example 2

[0027] like Figure 4In this embodiment 2, reinforcement is performed inside the pipeline. A reaction ring 3 is pre-installed inside the pipeline, and an elastic tube 2 resistant to high pressure and having certain constraints is arranged between the reaction ring 3 and the pipeline 1; the elastic tube 2 is filled with consolidation material, and when the injection pressure reaches the design value and all the air inside is exhausted, the valve is locked; under the action of pressure, the steel reaction ring 3 supports and generates compressive stress, exerting radial force on the reinforced inner wall; after the consolidation material solidifies, the internal force of the steel ring support can be continuously maintained through its own strength, ensuring safe and continuous application of prestress to the pipe wall (tunnel wall), which can improve or restore the pipe's ability to withstand external pressure loads. Example 3

[0028] like Figure 5 , by filling the elastic tube with consolidation material to prevent the pipe joint from leaking. This treatment method can make the pipe joint resist internal and external water pressure.

[0029] First, use elastic water-stopping materials to stick to the joints of two pipe sections to form a closed circle; then place the elastic tube between the annular closed high-strength tensile prestressed material and the elastic water-stopping material; then fill the elastic tube with high-pressure consolidation materials to make the elastic water-stopping material and the outer wall of the pipe bear the pressure; finally, the pressed consolidation material reaches the design strength after consolidation, which can continuously provide prestress to the pipe wall. It can be used as a measure for anti-seepage and reinforcement of socket joints.

[0030] Providing annular restraint can improve the integrity of the pipe connection and its ability to resist internal and external pressures; using elastic water-stopping materials can improve the anti-seepage ability of the contact surface. This method is different from the traditional casing joint anti-seepage method. The restraint material is designed to be flexible. Since there is continuous pressure in the prestressed material, the anti-seepage performance is better guaranteed.

[0031] The filling pressure in the elastic tube is determined according to the water pressure in the tube.

[0032] For areas with high cold and high temperature difference, the elastic water-stop material can be thickened to meet the longitudinal relative displacement of the pipe section with the shear and tensile capacity of the material; or two closed loops can be used to constrain the two sides of the elastic water-stop material to meet the relative displacement requirements. A combined pipe can also be used, that is, two elastic pipes combined together. Example 4

[0033] like Figure 6 , elastic material is filled in the elastic tube 2 to achieve socket and spigot anti-leakage, the two sections of the tube A and B are connected through the male and female joints, the elastic tube is installed at the male joint, and the elastic curing material or micro-expansion material is poured through the slurry inlet 21 after the socket and spigot, and finally the anti-seepage is achieved. The wall of the elastic tube 2 can have a certain self-adhesive property, which can better play an anti-seepage role.

[0034] The device for annular prestress reinforcement of a high-pressure elastic tube filled with solidified material provided by the present invention is not limited to an annular shape. After adaptively changing the shape of the elastic tube, it can also be used to apply prestress or seal between two planes, curved surfaces and other structures. Operators can completely design and produce elastic tubes of various shapes according to on-site needs to meet their needs.

[0035] The elastic tube can be made of two layers, inner and outer, with the outer layer being used for secondary pressure replenishment or to overcome prestress loss.

[0036] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementations. All technical solutions formed by equivalent replacement are within the protection scope required by the present invention.

Claims

1. A device for reinforcing a high-pressure elastic tube by filling a solidifying material with an annular prestress, characterized in that: include: A reaction ring and an elastic tube; the reaction ring is arranged on the inner side or the outer side of a structure to be prestressed, the elastic tube is arranged between the reaction ring and the structure to be prestressed, the elastic tube has a slurry inlet and a slurry outlet, the elastic tube can be poured with consolidation slurry and expand the elastic tube; the elastic tube presses the reaction ring and the structure to be prestressed; after the consolidation slurry is poured into the elastic tube and consolidated, the reaction ring provides a reaction force, and transmits it to the structure to be prestressed through the elastic tube and the consolidated consolidation slurry inside; the elastic tube is composed of an inflatable tube and a mesh cover thereon, and the reaction ring is a steel ring, a carbon fiber plate ring, a reinforced concrete ring or a biological fiber ring.

2. The device for reinforcing the annular prestressed structure of a high-pressure elastic tube filled with solidifying material according to claim 1 is characterized in that: The structures to be prestressed include cylindrical, annular, tubular, tunnel, and prismatic structures.

3. The device for reinforcing the annular prestressed structure of a high-pressure elastic tube filled with solidifying material according to claim 1, characterized in that: The elastic tube can be subjected to a vacuum treatment before being arranged between the reaction ring and the structure to be prestressed.

4. The device for reinforcing the annular prestressed structure of a high-pressure elastic tube filled with solidifying material according to claim 1, characterized in that: The consolidation slurry includes a foaming material.

5. The device for reinforcing the annular prestressed structure of a high-pressure elastic tube filled with solidifying material according to claim 1, characterized in that: The consolidation slurry is poured into the elastic tube by high-pressure filling slurry equipment.

6. The device for reinforcing the annular prestressed structure of a high-pressure elastic tube filled with solidifying material according to claim 1, characterized in that: The elastic tube has two layers of inner and outer tubes, and the outer tube is used for secondary pressure supplementation or to overcome prestress loss.

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