CN219840025U - Double-shell underwater concrete dry chamber repairing device - Google Patents
Double-shell underwater concrete dry chamber repairing device Download PDFInfo
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- CN219840025U CN219840025U CN202320997782.5U CN202320997782U CN219840025U CN 219840025 U CN219840025 U CN 219840025U CN 202320997782 U CN202320997782 U CN 202320997782U CN 219840025 U CN219840025 U CN 219840025U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 238000005086 pumping Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000008439 repair process Effects 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010981 drying operation Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 108010066057 cabin-1 Proteins 0.000 description 21
- 238000000034 method Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of hydraulic engineering junction safety danger-removing and reinforcement, and discloses a double-shell underwater concrete dry chamber repairing device which comprises an outer cabin and an inner cabin, wherein the top of the outer cabin is directly fixed, an inflation pipe for inflating the inner cabin and a drainage pipe for pumping water from the outer cabin; the bottom of the outer cabin is provided with outer omega-shaped water stop rubber and outer VA-shaped water stop rubber; the bottom of the inner cabin is provided with an inner omega-shaped water stop rubber layer and an inner VA-shaped water stop rubber layer; and a plurality of layers of supporting plates are arranged between the outer cabin and the inner cabin and used for supporting force transmission. On one hand, the utility model can utilize the water pressure of the external water body, has better rubber water stopping effect and simultaneously increases the overall stability; on the other hand, the air can be utilized to realize the external discharge effect of the air on the water body of the inner cabin, and the drying operation environment can be better realized; in addition, the matching of the two aspects skillfully breaks through the difficult problem of water stop and sealing under the condition of large water depth, and solves the problem of maintenance requirement under the condition of large water depth.
Description
Technical Field
The utility model belongs to the technical field of hydraulic engineering hub safety danger removal and reinforcement, and particularly relates to a device for repairing underwater concrete.
Background
The flood discharge energy dissipation building of hydraulic engineering mainly comprises overflow dams (channels), plunge ponds, spillway holes, hydraulic gates and the like, and when the building runs and discharges floods in hydropower stations, huge high-speed water flow impact force is born, and the concrete panel is extremely easy to be damaged by scouring, cavitation erosion, abrasion, vibration damage, bottom plate splitting, fracture and the like under the condition of high-speed water flow. When the panel is damaged, huge water flow impact can continuously wash the building foundation, and the dam foundation can be seriously and directly damaged. According to statistics, flood discharge energy dissipation buildings with approximately 40% of hydraulic engineering at home and abroad are damaged to different degrees. Once the drainage structure is destroyed, the safe operation of the whole hydraulic engineering is a huge hidden trouble, and along with continuous washing of the foundation, serious safety accidents such as dam break and the like are extremely easy to be caused, and the life and property safety of downstream cities and people are also seriously threatened.
In the existing research and engineering practice, two repair modes are adopted for the damaged bottom plate of the absorption basin: direct underwater repair and dry work repair. However, both of these repair methods have advantages and disadvantages. The damaged surface is required to be treated underwater in direct underwater repair, and then the damaged part is repaired by using underwater concrete (epoxy resin and the like); the method has the advantages that water in the stilling pool is not required to be emptied, the construction period can be saved, the overall technical difficulty is high, the diving depth of a diver is limited, the repairing cost is high, the treatment effect is poor, and secondary damage is very easy to occur in the later stage. The dry land operation repair needs to pump out all water in the stilling pool to create a dry environment, has the advantages that the damaged part can be thoroughly treated, the repaired structure and the original structure can be integrated, and the dry land operation repair is firm and durable, but the process is long in time consumption and huge in economic cost. Therefore, the research team provides a dry land technology for the damage of underwater concrete, can create a local dry land environment, and well solves the defects of the two prior arts.
The local dry land operation is to enclose the damaged surface ring by adopting related equipment or cofferdam, and then to extract water in the cofferdam, so as to form a local dry environment relative to the external water area, so that workers can enter the floor to perform pretreatment and later repair. The pneumatic sinking cabinet (patent number: CN 200620163305.5) adopts the concept of local water pumping, wherein a shield bottom is adopted to cover a damaged structure, and then the shield bottom is inflated to discharge water, so that a drying operation environment is formed. However, the device and the method have unsatisfactory water stopping effect, and in order to offset jacking force of shield bottom inflation and keep balance of the submerged cabinet, the device needs to be provided with ballast blocks of tens of tons, so that the whole weight of the device is huge and heavy, and in addition, the device is only suitable for shallower water areas and cannot be realized in large water depth overhaul. However, in general, a method for repairing an underwater damaged structural surface by adopting local dry work is an important direction of future research in the field of hydraulic engineering.
In summary, the problem of damage repair of the hydraulic junction engineering is to be solved, but the prior technical scheme has defects and shortcomings to a certain extent, mainly the water stopping method is relatively poor in effect, and difficult to better realize local dry environment, and bad influence is caused on construction operation and repair effect. In addition, the conventional method is often only suitable for the situation that the water depth is shallow, and the overhaul requirement for large water depth is difficult to meet.
Disclosure of Invention
The utility model aims to provide a double-shell underwater concrete dry room repairing device, which does not need to pump out all water in a hydraulic building structure to be repaired, only pumps out the water in the repairing device, can realize the dry repair of damaged concrete, can effectively shorten the construction period and can obtain good construction quality; by pumping water from the outer cabin and inflating the inner cabin of the repairing device, the water stopping sealing problem under the condition of large water depth can be solved, and the problem of maintenance requirement under the condition of large water depth is solved.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a double-shell underwater concrete dry chamber repairing device, which comprises an outer cabin and an inner cabin arranged in the outer cabin, wherein the inner cabin can cover a to-be-overhauled place of underwater concrete, and the top of the inner cabin is in contact with the top of the outer cabin and is directly fixed;
the top parts of the outer cabin and the inner cabin are provided with air inflation pipes which are communicated with the inside of the inner cabin inwards and pass through the outer cabin outwards to be connected with an external air compressor or an air pump for inflating the inner cabin; the bulkhead of the outer cabin is connected with a drain pipe, and the drain pipe is connected with an external water pump and is used for pumping water in the outer cabin;
an outer cabin skirt board is arranged at the bottom of the outer cabin, an outer omega-shaped water stop rubber layer is arranged on the bottom surface of the outer cabin skirt board, and an outer VA-shaped water stop rubber layer is arranged on the outer edge of the outer cabin skirt board; the outer layer VA type water-stopping rubber, the outer layer omega type water-stopping rubber and the outward water pumping of the drain pipe form an outer layer water-stopping barrier of the double-shell underwater concrete dry chamber repairing device;
an inner cabin skirt board is arranged at the bottom of the inner cabin, an inner omega-shaped water stop rubber layer is arranged on the bottom surface of the inner cabin skirt board, and an inner VA-shaped water stop rubber layer is arranged on the outer edge of the inner cabin skirt board; the inner layer VA type water-stopping rubber, the inner layer omega type water-stopping rubber and the inward inflation of the inflation tube form an inner layer water-stopping barrier;
the multi-layer support plate is arranged between the outer cabin and the inner cabin and used for supporting force transmission, the multi-layer support plate is vertically arranged around the circumference of the inner cabin and is arranged in a layered mode, and the multi-layer support plate is provided with water/air holes for water and gas circulation.
Further, the outer compartment is a larger diameter dome-shaped structure and the inner compartment is a smaller diameter hemispherical structure.
Further, the inflation tube is provided with a one-way check valve to prevent backflow of the internal gas.
Further, a plurality of the drain pipes are uniformly arranged around the circumference of the outer compartment.
Further, the drain pipe is vertically arranged, a water inlet pipe orifice at the bottom end of the drain pipe extends to the bottom of the outer cabin, and a water outlet pipe orifice at the top end of the drain pipe is led to the outside of the outer cabin.
Further, the drain pipe is provided with a one-way check valve to prevent the external water body from flowing back into the outer cabin.
Further, the multi-layered support plate includes an inner support plate positioned between the bulkhead of the inner compartment and the bulkhead of the outer compartment and an outer support plate positioned between the skirt of the inner compartment and the bulkhead of the outer compartment.
The beneficial effects of the utility model are as follows:
on one hand, the utility model can well utilize the water pressure of the external water body, so that the repairing device is tightly attached to the concrete, the rubber water stopping effect is exerted to a greater extent, the overall stability is increased, the repairing device can be well attached to the underwater structural surface without depending on a large number of counterweights, the overall weight and the materials of the repairing device can be reduced, and the cost is saved; on the other hand, the external exhaust effect of the gas on the water body of the inner cabin can be well utilized, the inner cabin can form a dry chamber cabin, and the drying operation environment is better realized.
The utility model adopts the spherical arch structure of the outer cabin and the hemispherical structure of the inner cabin, the outer cabin is directly connected with the top of the inner cabin, and the supporting plate is arranged between the outer cabin and the inner cabin for supporting force transmission, so that the whole structure is more stable, and the bearing property of the force is better.
The utility model can realize the water stop operation of pumping water from the outer cabin, inflating the inner cabin and blocking water from rubber, thereby breaking through the water stop sealing problem under the condition of large water depth, solving the problem of maintenance requirement under the condition of large water depth, effectively shortening the construction period, reducing the construction cost and guaranteeing the repair quality.
Drawings
FIG. 1 is a perspective view of a double-shell underwater concrete dry chamber repairing device provided by the utility model;
FIG. 2 is a top view of the double-shell underwater concrete dry chamber repairing device provided by the utility model;
FIG. 3 is a cross-sectional perspective view of the double-shell underwater concrete dry chamber repairing device provided by the utility model;
FIG. 4 is a cross-sectional elevation view of the dual hull underwater concrete dry chamber repair apparatus provided by the present utility model;
FIG. 5 is a perspective view of an inner cabin and a support plate in the double-shell underwater concrete dry chamber repairing device provided by the utility model;
FIG. 6 is a top view of the inner compartment and support plate of the dual-shell underwater concrete dry chamber repair device provided by the utility model;
fig. 7 is a cross-sectional perspective view of an inner cabin and a support plate in the double-shell underwater concrete dry chamber repairing device provided by the utility model.
In the above figures: 1. an outer cabin, an outer cabin skirt board, 3, an outer VA type water-stopping rubber, 4, a drain pipe, 5, an air charging pipe, 6, an outer omega type water-stopping rubber, 7, an inner supporting plate, 8, an outer supporting plate, 9, an inner cabin, 10, an inner cabin skirt board, 11, an inner omega-shaped water stopping rubber, 12 and an inner VA-shaped water stopping rubber.
Detailed Description
For a further understanding of the nature, features, and effects of the present utility model, the following examples are set forth to illustrate, and are to be considered in connection with the accompanying drawings:
as shown in fig. 1 to 4, the present embodiment provides a double-shell underwater concrete dry chamber repairing device, which mainly includes an outer chamber 1 and an inner chamber 9, wherein the outer chamber 1 is a spherical arch structure with a larger diameter, and the inner chamber 9 is a hemispherical structure with a smaller diameter. The top outer surface of the inner compartment 9 is in contact with and directly secured to the top inner surface of the outer compartment 1.
The top of the outer cabin 1 and the top of the inner cabin 9 are provided with an air charging pipe 5, the air charging pipe 5 is led inwards to the inside of the inner cabin 9, and outwards penetrates through the outer cabin 1 to be connected with an external air compressor or an air pump for charging the inner cabin 9. The inflation tube 5 is provided with a one-way check valve to prevent backflow of the internal gas.
The outer compartment 1 is provided with drain pipes 4 connected to the walls, the drain pipes 4 being evenly arranged around the circumference of the outer compartment 1, preferably 4 in number. The drain pipe 4 is vertically arranged, and a water inlet pipe orifice at the bottom end of the drain pipe extends to the bottom of the outer cabin 1 (generally positioned in a range outside the inner cabin skirt board 10) and is in clearance with underwater concrete, so that smooth water pumping is ensured; the water outlet at the top end of the water pump is communicated with the outside of the outer cabin 1 and is connected with an external water pump for pumping water in the outer cabin 1. The drain pipe 4 is also provided with a one-way check valve to prevent backflow of external water into the outer tank 1.
The outer cabin 1 is in direct contact with external water, an outer cabin skirt board 2 is arranged at the bottom of the outer cabin 1, and the outer cabin skirt board 2 is of a flat plate structure which is enclosed around the outer cabin 1. An outer omega-shaped water stop rubber 6 is arranged on the bottom surface of the outer cabin apron board 2, and an outer VA-shaped water stop rubber 3 is arranged on the outer edge of the outer cabin apron board 11. The outside VA type water stop rubber 3, the outside omega type water stop rubber 6 and the outside water pumping of the drain pipe 4 form an outside water stop barrier of the repairing device.
The inner cabin 7 is arranged inside the outer cabin 1, the inner cabin 9 can cover a cage of the underwater concrete to be overhauled, water inside the inner cabin 9 is extruded and discharged in an inflatable mode, and finally a dry operation environment is provided for overhauling the underwater concrete. The bottom of the inner cabin 7 is provided with an inner cabin apron board 10, the bottom surface of the inner cabin apron board 10 is provided with an inner layer omega-shaped water stop rubber 11, the outer edge of the bottom of the inner cabin apron board 10 is provided with an inner layer VA-shaped water stop rubber 12, and the inner layer VA-shaped water stop rubber 12, the inner layer omega-shaped water stop rubber 11 and the inward inflation of the inflation tube 5 form an inner layer water stop barrier of the repairing device.
As shown in fig. 5 to 7, an inner supporting plate 7 and an outer supporting plate 8 are arranged between the outer cabin 1 and the inner cabin 9 and used for supporting force transmission, so that the whole structure is more stable, and the bearing performance of the force is better. The inner support plate 7 and the outer support plate 8 are vertically arranged and have a certain distance, the inner support plate 7 is positioned between the bulkhead of the inner cabin 9 and the bulkhead of the outer cabin 1, and the outer support plate 8 is positioned between the apron board 10 of the inner cabin and the bulkhead of the outer cabin 1. The inner support plate 7 and the outer support plate 8 are provided with water/air holes, so that water vapor in the cabin surrounded by the inner support plate 7 and the outer support plate 8 can flow conveniently.
After the double-shell underwater concrete dry chamber repairing device is used for filling water and covering a to-be-overhauled place of the underwater concrete, rubber is firstly used for initially stopping water, and then the outer cabin 1 is used for pumping water and the inner cabin 9 is used for inflating, so that a local dry environment which is opposite to the outside is formed inside the double-shell underwater concrete dry chamber repairing device, and the underwater concrete is convenient to overhaul.
The method specifically comprises the following steps:
(1) Rubber primary water stop device with seat bottom
The repairing device is placed in water, the periphery of a to-be-overhauled place of the underwater concrete is seated, the outer-layer VA type water stop rubber 3, the outer-layer omega type water stop rubber 6, the inner-layer VA type water stop rubber 12 and the inner-layer omega type water stop rubber 11 are in contact with the surface of the underwater concrete, and the initial rubber compression and water stop work is completed by means of the self weight of the whole repairing device in water.
(2) Pumping water from the outer cabin and inflating the inner cabin
After the outer-layer VA type water-stopping rubber 3, the outer-layer omega type water-stopping rubber 6, the inner-layer VA type water-stopping rubber 12 and the inner-layer omega type water-stopping rubber 11 are completely attached to the surface of underwater concrete, the water in the outer cabin 1 is pumped and discharged to the external water body through the drain pipe 4 and the water suction pump after the whole repairing device is stable, and the upper part in the outer cabin gradually forms a negative pressure state relative to the external water body due to the action of pumping water, so that the repairing device is subjected to the pressure of the external water body; meanwhile, the air tube 5 is used for slowly inflating the inner cabin 9, air slowly occupies the inner space of the inner cabin 9, and the water pressure in the inner cabin 9 is forced into the outer cabin 1 and is pumped out through the drain tube 4; because of the effect of inflation, the upper part in the inner cabin 9 forms a positive pressure state, so that the repairing device is subjected to the jacking force of internal gas, the pumping rate is required to be controlled to be higher than the inflation rate in the process, the external water pressure born by the repairing device is ensured to be always higher than the jacking force of the internal gas, the adsorption of the repairing device on the damaged surface is realized, and the underwater stability of the repairing device is ensured; stopping inflating until the water in the inner cabin 9 is completely drained, and stopping pumping when the water in the outer cabin 1 is little and the water level is lower than the pumping required water level of the drain pipe 4; in the water pumping and exhausting process, the outer layer VA type water stop rubber 3, the outer layer omega type water stop rubber 6, the inner layer VA type water stop rubber 12 and the inner layer omega type water stop rubber 11 are compressed due to the effect of external water pressure, the contact surface with underwater concrete is further increased, and the water stop effect is also improved.
The double-shell underwater concrete dry chamber repairing device is stable in whole and can be judged by a displacement sensor arranged on the repairing device; the external water pressure received by the outer cabin 1 and the gas jacking force received by the inner cabin 9 can be identified and judged through a pressure sensor arranged on the repairing device; in addition, the water level in the outer tank 1 can be determined by a water level sensor mounted on the prosthetic device.
Through the above operation, a local dry environment is formed inside the inner cabin 9 with respect to the external water body, so as to overhaul the underwater concrete. In the maintenance process, the air pressure in the inner cabin 9 is controlled to be constant in real time, and if the pressure is reduced, the air pressure needs to be timely supplemented; if outside water seeps to the outer cabin 1, when the water level in the outer cabin 1 is slightly higher than the water pumping requirement level of the drain pipe 4, the water pump is started to discharge the water in the outer cabin 1, and the water level in the outer cabin 1 is always kept lower than the water pumping requirement level of the drain pipe 4.
Although the preferred embodiments of the present utility model have been described above with reference to the accompanying drawings, the present utility model is not limited to the above-described embodiments, which are merely illustrative, not restrictive, and many changes may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the appended claims, which are to be construed as falling within the scope of the present utility model.
Claims (7)
1. The double-shell underwater concrete dry chamber repairing device is characterized by comprising an outer cabin and an inner cabin arranged in the outer cabin, wherein the inner cabin can cover a to-be-overhauled place of underwater concrete, and the top of the inner cabin is in contact with and directly fixed with the top of the outer cabin;
the top parts of the outer cabin and the inner cabin are provided with air inflation pipes which are communicated with the inside of the inner cabin inwards and pass through the outer cabin outwards to be connected with an external air compressor or an air pump for inflating the inner cabin; the bulkhead of the outer cabin is connected with a drain pipe, and the drain pipe is connected with an external water pump and is used for pumping water in the outer cabin;
an outer cabin skirt board is arranged at the bottom of the outer cabin, an outer omega-shaped water stop rubber layer is arranged on the bottom surface of the outer cabin skirt board, and an outer VA-shaped water stop rubber layer is arranged on the outer edge of the outer cabin skirt board; the outer layer VA type water-stopping rubber, the outer layer omega type water-stopping rubber and the outward water pumping of the drain pipe form an outer layer water-stopping barrier of the double-shell underwater concrete dry chamber repairing device;
an inner cabin skirt board is arranged at the bottom of the inner cabin, an inner omega-shaped water stop rubber layer is arranged on the bottom surface of the inner cabin skirt board, and an inner VA-shaped water stop rubber layer is arranged on the outer edge of the inner cabin skirt board; the inner layer VA type water-stopping rubber, the inner layer omega type water-stopping rubber and the inward inflation of the inflation tube form an inner layer water-stopping barrier;
the multi-layer support plate is arranged between the outer cabin and the inner cabin and used for supporting force transmission, the multi-layer support plate is vertically arranged around the circumference of the inner cabin and is arranged in a layered mode, and the multi-layer support plate is provided with water/air holes for water and gas circulation.
2. The double hull underwater concrete dry chamber repair device of claim 1, wherein the outer tank is a larger diameter spherical arch and the inner tank is a smaller diameter hemispherical structure.
3. A double hull underwater concrete dry chamber repair apparatus as in claim 1, wherein the inflation tube is provided with a one-way check valve to prevent internal gas backflow.
4. A double hull underwater concrete dry chamber repair apparatus as in claim 1, wherein a plurality of the drain pipes are evenly arranged around the circumference of the outer tank.
5. The double-shell underwater concrete dry room repairing device according to claim 1, wherein the water draining pipe is vertically arranged, a water inlet pipe orifice at the bottom end of the water draining pipe extends to the bottom of the outer cabin, and a water outlet pipe orifice at the top end of the water draining pipe is communicated with the outside of the outer cabin.
6. A double hull underwater concrete dry chamber repair apparatus as in claim 1, wherein the drain is provided with a one-way check valve to prevent backflow of external water into the outer tank.
7. A double hull underwater concrete dry booth repair apparatus as in claim 1, wherein the multi-layered support plate comprises an inner support plate and an outer support plate, the inner support plate being located between the bulkhead of the inner and outer tanks, the outer support plate being located between the inner and outer tank skirt panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997782.5U CN219840025U (en) | 2023-04-27 | 2023-04-27 | Double-shell underwater concrete dry chamber repairing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997782.5U CN219840025U (en) | 2023-04-27 | 2023-04-27 | Double-shell underwater concrete dry chamber repairing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219840025U true CN219840025U (en) | 2023-10-17 |
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ID=88302923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320997782.5U Active CN219840025U (en) | 2023-04-27 | 2023-04-27 | Double-shell underwater concrete dry chamber repairing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219840025U (en) |
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2023
- 2023-04-27 CN CN202320997782.5U patent/CN219840025U/en active Active
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