Underwater repairing device for concrete faced rockfill dam

Abstract

The utility model provides a concrete faced rockfill dam underwater repairing device. The concrete faced rockfill dam underwater repairing device comprises a repairing room; the partition plates divide an inner cavity of the repairing room into a water collecting and draining bin, a construction operation area, a safety bin and a material bin, the water collecting and draining bin and the safety bin are arranged on the two sides of the construction operation area respectively, the safety bin and the material bin are located on the same side of the construction operation area, the safety bin, the material bin and the water collecting and draining bin are closed spaces, and the bottom, at the construction operation area, of the repairing room is of a hollow structure; the water stop structure is arranged at the bottom of the repair house; the fixing structure is used for fixing the repairing house on the underwater slope; the hoisting structure is arranged on the outer wall of the repairing room; the water collecting and draining system is arranged in the water collecting and draining bin and used for draining water stored in the construction operation area. According to the method, a dry land construction environment can be created for underwater repair construction of the concrete faced rockfill dam, and the safety of constructors is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy engineering, and in particular to an underwater repair device for a panel rockfill dam. Background Art

[0002] Concrete face rockfill dam is mainly composed of concrete face, cushion area, transition area, main rockfill area, secondary rockfill area and anti-seepage system of dam. Concrete face rockfill dam is often damaged due to uneven settlement of dam body, resulting in cavities in dam body, which eventually leads to destruction of concrete face, failure of anti-seepage system and even greater safety accidents.

[0003] When a concrete face rockfill dam is found to be damaged, it needs to be repaired. The slope ratio of a face rockfill dam is generally 1:1.5~1:1.7. Therefore, when constructing the water-stop structure of a face rockfill dam, it must be constructed on the face slope, which is very difficult and cannot be guaranteed for safety. Although the face rockfill dam is partially damaged, it is still in normal operation, that is, there is a large amount of water on the water retaining slope of the dam body. The water in the reservoir can be lowered below the water level of the damaged area of ​​the dam body to achieve dry land construction. Repair operations rely on artificial scaffolding platforms. This method will waste a lot of water resources and cause economic losses. It also requires that the reservoir water level must be lower than the water level in the repair area, and the construction operability is extremely low. Utility Model Content

[0004] In order to improve the problem of difficulty in repairing a panel of a face rockfill dam after it is damaged, the present application provides an underwater repair device for a face rockfill dam.

[0005] The underwater repair device for a concrete face rockfill dam provided in this application adopts the following technical solution:

[0006] An underwater repair device for a concrete face rockfill dam, comprising:

[0007] Rehabilitation house with confined space inside;

[0008] The partition is fixedly connected to the repair house, and divides the inner cavity of the repair house into a water collection and drainage bin, a construction work area, a safety bin, and a material bin. The water collection and drainage bin and the safety bin are arranged on both sides of the construction work area, and the safety bin and the material bin are located on the same side of the construction work area. The safety bin, the material bin, and the water collection and drainage bin are closed spaces, and the bottom of the repair house in the construction work area is set as a hollow structure;

[0009] A water-stop structure is provided at the bottom of the repaired house;

[0010] A fixing structure, used for fixing the repair house on the underwater slope;

[0011] A hoisting structure is arranged on the outer wall of the repair house;

[0012] The water collection and drainage system is arranged in the water collection and drainage bin and is used to discharge the water stored in the construction work area.

[0013] Furthermore, a connecting passage is provided between the safety warehouse, the material warehouse, the water collection and drainage warehouse and two adjacent areas in the construction work area, and the connecting passage has strong air tightness when closed.

[0014] Furthermore, the safety cabin is provided with underwater positioning equipment and communication equipment.

[0015] Furthermore, the water collection and drainage system is configured as follows:

[0016] A plurality of water pumps are provided and used to pump water stored in the construction area to the water collection and drainage tank;

[0017] There are multiple external drainage pumps, which are used to discharge the water stored in the water collection and drainage tank to the outside of the repair house.

[0018] Furthermore, the water-stopping structure comprises:

[0019] A P-type water stop strip is provided at the outer peripheral side edge of the bottom of the repaired roof;

[0020] Ω-type water stop strips are arranged on both sides of the construction work area.

[0021] Furthermore, the fixing structure is configured as a plurality of anchor bolts, and the length of the anchor bolts is 20 to 40 cm.

[0022] Furthermore, the repair house includes:

[0023] The frame structure includes a roof truss, bent columns and brackets that are fixedly connected;

[0024] The steel plate is arranged around the outer periphery of the frame structure.

[0025] Furthermore, the steel plate is made of stainless steel, and the thickness of the steel plate is 0.03-0.08 m;

[0026] The roof truss, the bent frame column and the bracket are made of H-shaped steel.

[0027] Furthermore, the roof frame adopts a triangular steel truss.

[0028] Furthermore, the hoisting structure includes a plurality of locks, some of which are distributed on the top and surrounding sides of the roof truss, and another plurality of which are distributed on an outer wall of one side of the repair house where the safety warehouse is provided.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The repair house is divided into a water collection and drainage warehouse, a construction area, a safety warehouse and a material warehouse through partitions, which can create a dry land construction environment for the underwater repair of the panel rockfill dam and ensure the safety of the construction workers;

[0031] 2. With the help of the roof truss composed of triangular steel trusses and the frame columns and brackets made of H-shaped steel, the overall structural strength and stability of the frame structure can be greatly improved. It has a high load-bearing capacity, stable hoisting, and good underwater pressure resistance. It can ensure the safety of construction workers after carrying construction materials. The setting of connecting channels facilitates the transfer of construction workers in different areas, while ensuring the safety of personnel and materials in the safety warehouse and material warehouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the partitions of an embodiment of the present application;

[0034] Figure 2 is a front cross-sectional view of an embodiment of the present application;

[0035] Figure 3 This is a layout diagram of the water-stopping structure of an embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of the working status of an embodiment of the present application.

[0037] Figure numerals: 1. Repair house; 11. Water collection and drainage bin; 12. Construction work area; 13. Safety bin; 14. Material bin; 2. Partition; 31. Water pump; 32. External drainage pump; 41. P-type water stop strip; 42. Ω-type water stop strip; 5. Anchor bolt; 61. Roof truss; 62. Frame column; 63. Bracket; 64. Steel plate; 7. Lock. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.

[0039] Reference Figure 1-Figure 4The embodiment of the present application discloses an underwater repair device for a face rockfill dam, which comprises:

[0040] A repair house 1 having a confined space therein;

[0041] The partition 2 is fixedly connected to the repair house 1, and divides the inner cavity of the repair house 1 into a water collection and drainage bin 11, a construction work area 12, a safety bin 13, and a material bin 14. The water collection and drainage bin 11 and the safety bin 13 are arranged on both sides of the construction work area 12, and the safety bin 13 and the material bin 14 are located on the same side of the construction work area 12; the safety bin 13, the material bin 14 and the water collection and drainage bin 11 are closed spaces, and the bottom of the repair house 1 in the construction work area 12 is set as a hollow structure;

[0042] The water-stop structure is arranged at the bottom of the repair house 1 and is used to seal the joint between the repair house 1 and the slope surface;

[0043] A fixing structure, used to fix the repair house 1 on the underwater slope to prevent the repair house 1 from floating up during the slope repair process;

[0044] A hoisting structure is arranged on the outer wall of the repair house 1 so that a crane ship or dam top traction equipment can hoist the repair house 1; and

[0045] The water collection and drainage system is arranged in the water collection and drainage tank 11 and is used to discharge the water in the construction area 12. In addition, the amount of water in the water collection and drainage tank 11 can be controlled to control the sinking and floating speed of the repair house 1 and maintain the stability of the repair house 1 during underwater repair.

[0046] In this way, when it is necessary to repair the damaged part of the panel rockfill dam slope, the detection technology is first used to detect the damage of the dam, and the location, depth and size of the damage of the panel rockfill dam are analyzed; then, materials are prepared according to the scope of the damage of the panel rockfill dam, and the required materials are loaded into the material warehouse 14. After the construction personnel enter the safety warehouse 13, the repair house 1 is installed to the damaged part by using the crane ship and the dam top traction equipment; then the repair house 1 is anchored with the help of the fixed structure, so that the construction area 12 of the repair house 1 and the panel slope form a closed space. Then, the water in the construction area 12 is discharged through the water collection and drainage system, and the air pressure in the construction area 12 is adjusted to meet normal construction conditions. At this time, the construction personnel and materials can enter the construction area 12 to carry out the panel rockfill dam repair work; after the repair work is completed, the construction personnel enter the safety warehouse 13, and then the fixed structure is removed, and water is injected into the construction area 12 through the water collection and drainage system. After the air pressure inside and outside the construction area 12 is balanced, the repair house 1 is lifted and recovered by the crane ship in cooperation with the dam top traction equipment. Figure 4Therefore, with the help of the underwater repair device of the present application, a dry land construction environment can be created for the underwater repair construction of the panel rockfill dam, ensuring the safety of the construction workers, and it is suitable for various construction environments, meeting the requirements for slope stacking, and facilitating the repair construction of various parts of the panel rockfill dam.

[0047] Specifically, refer to Figure 1 and Figure 2 , Restoration House 1 includes:

[0048] The frame structure includes a roof truss 61, a frame column 62 and a bracket 63 which are fixedly connected; the roof truss 61 is a triangular steel truss; the roof truss 61, the frame column 62 and the bracket 63 are all made of H-shaped steel;

[0049] The steel plate 64 is arranged around the outer periphery of the frame structure and is made of stainless steel with a thickness of 0.03-0.08 m.

[0050] In addition, a connecting passage is provided between the adjacent areas among the safety warehouse 13, the material warehouse 14, the water collection and drainage warehouse 11 and the construction work area 12. The connecting passage has strong airtightness when closed. The connecting passage can specifically be a door opening opened on the partition 2, and the partition 2 is provided with an airtight door for sealing the door opening.

[0051] In this way, with the help of the roof truss 61 composed of triangular steel trusses and the frame columns 62 and brackets 63 made of H-shaped steel, the overall structural strength and stability of the frame structure can be greatly improved, with high load bearing, stable hoisting, and good underwater pressure resistance, which can ensure the safety of construction workers after carrying construction materials. The setting of the connecting channel facilitates the transfer of construction workers in different areas, while ensuring the safety of people and materials in the safety warehouse 13 and the material warehouse 14.

[0052] In addition, refer to Figure 1 , the water collection and drainage system is set as:

[0053] A plurality of water pumps 31 are provided, and are used to pump water stored in the construction work area 12 to the water collection and drainage tank 11;

[0054] There are multiple external drainage pumps 32, and they are used to discharge the water in the water collection and drainage tank 11 to the outside of the repair house 1.

[0055] Reference Figure 2 and Figure 3 , the water-stop structure includes:

[0056] P-type water stop strip 4241, provided at the outer peripheral side edge of the bottom of the repair house 1;

[0057] The Ω-shaped water stop strip 4241 is arranged on both sides of the construction operation area 12, and both the P-shaped water stop strip 4241 and the Ω-shaped water stop strip 4241 are made of PVC material.

[0058] The fixing structure is provided with a plurality of anchor bolts 5, the length of the anchor bolts 5 is 20 to 40 cm, and the anchor bolts 5 are anchored mechanically, for example, a hydraulic device is provided in the repair house 1. When the repair house 1 is hoisted and positioned, the plurality of anchor bolts 5 distributed at the four corners of the repair house 1 are pressed into the slope by the hydraulic device for anchoring and fixing.

[0059] The hoisting structure includes a plurality of lock buckles 7, some of which are distributed on the top and the surrounding side of the roof truss 61 to facilitate the crane ship to hoist the repair house 1, and another plurality of lock buckles 7 are distributed on the outer wall of one side of the repair house 1 where a safety chamber 13 is provided.

[0060] In this way, when the repair house 1 is hoisted into place, the repair house 1 is fixed by the anchor bolts 5, and the P-type water stop strip 4241 and the Ω-type water stop strip 4241 are pressed tightly in the gap between the repair house 1 and the slope, which can form a water control barrier, making it convenient for the water collection and drainage system to discharge the water in the construction area 12, creating dry land construction conditions for repair construction.

[0061] In addition, underwater positioning equipment and communication equipment are installed in the installation chamber. The positioning equipment can facilitate the positioning and installation of the repair house 1, so that the repair house 1 can stay accurately above the area to be repaired underwater; the communication equipment makes it convenient for the operators in the safety chamber 13 to communicate with the commanders on the shore in real time to ensure safe construction.

[0062] The implementation principle of an underwater repair device for a concrete face rockfill dam in the embodiment of the present application is as follows:

[0063] When it is necessary to repair the damaged part of the panel rockfill dam slope, the detection technology is first used to detect the dam damage, and the location, depth and size of the panel rockfill dam damage are analyzed; then, materials are prepared according to the scope of the panel rockfill dam damage, and the required materials are loaded into the material warehouse 14. After the construction personnel enter the safety warehouse 13, the crane ship and the dam top traction equipment are used to install the repair house 1 to the damaged part; then, the repair house 1 is anchored with the help of a fixed structure, so that the construction area 12 of the repair house 1 and the panel slope form a closed space.

[0064] Then, the water in the construction area 12 is drained through the water collection and drainage system, and the air pressure in the construction area 12 is adjusted to meet normal construction conditions. At this time, construction personnel and materials can enter the construction area 12 to repair the panel rockfill dam; after the repair work is completed, the construction personnel enter the safety warehouse 13, remove the fixed structure, and inject water into the construction area 12 through the water collection and drainage system. After the air pressure inside and outside the construction area 12 is balanced, the repair house 1 is lifted and recovered by the crane ship in cooperation with the dam top traction equipment. Therefore, with the help of the underwater repair device of the present application, a dry land construction environment can be created for the underwater repair construction of the panel rockfill dam, ensuring the safety of the construction personnel, and it is suitable for various construction environments, meeting the requirements of slope stacking, and facilitating the repair construction of various parts of the panel rockfill dam.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An underwater repair device for a face rockfill dam, characterized in that: include: Rehabilitation house with confined space inside; The partition is fixedly connected to the repair house, and divides the inner cavity of the repair house into a water collection and drainage bin, a construction work area, a safety bin, and a material bin. The water collection and drainage bin and the safety bin are arranged on both sides of the construction work area, and the safety bin and the material bin are located on the same side of the construction work area. The safety bin, the material bin, and the water collection and drainage bin are closed spaces, and the bottom of the repair house in the construction work area is set as a hollow structure; A water-stop structure is provided at the bottom of the repaired house; A fixing structure, used for fixing the repair house on the underwater slope; A hoisting structure is arranged on the outer wall of the repair house; The water collection and drainage system is arranged in the water collection and drainage bin and is used to discharge the water stored in the construction work area.

2. The underwater repair device for a concrete face rockfill dam according to claim 1 is characterized in that: A connecting passage is provided between the safety warehouse, the material warehouse, the water collection and drainage warehouse and two adjacent areas in the construction work area, and the connecting passage has strong air tightness when closed.

3. The underwater repair device for a concrete face rockfill dam according to claim 1 is characterized in that: The safety cabin is provided with underwater positioning equipment and communication equipment.

4. The underwater repair device for a concrete face rockfill dam according to claim 1 is characterized in that: The water collection and drainage system is configured as follows: A plurality of water pumps are provided and used to pump water stored in the construction work area to the water collection and drainage tank; There are multiple external drainage pumps, which are used to discharge the water stored in the water collection and drainage tank to the outside of the repair house.

5. The underwater repair device for a concrete face rockfill dam according to claim 1 is characterized in that: The water-stop structure comprises: A P-type water stop strip is provided at the outer peripheral side edge of the bottom of the repaired roof; Ω-shaped water stop strips are arranged on both sides of the construction work area.

6. The underwater repair device for a concrete face rockfill dam according to claim 1, characterized in that: The fixing structure is configured as a plurality of anchor bolts, and the length of the anchor bolts is 20-40 cm.

7. An underwater repair device for a concrete face rockfill dam according to any one of claims 1 to 6, characterized in that: The restoration house includes: The frame structure includes a roof truss, bent columns and brackets that are fixedly connected; The steel plate is arranged around the outer periphery of the frame structure.

8. The underwater repair device for a concrete face rockfill dam according to claim 7, characterized in that: The steel plate is made of stainless steel, and the thickness of the steel plate is 0.03-0.08m; The roof truss, the bent frame column and the bracket are made of H-shaped steel.

9. The underwater repair device for a concrete face rockfill dam according to claim 8, characterized in that: The roof frame adopts a triangular steel truss.

10. The underwater repair device for a concrete face rockfill dam according to claim 9, characterized in that: The hoisting structure includes a plurality of locks, some of which are distributed on the top and the surrounding side of the roof frame, and another plurality of which are distributed on the outer wall of one side of the repair house where the safety warehouse is provided.

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