A movable dry cabin for local repair of the concrete floor slab of a plunge pool
By designing a movable dry cabin, the cofferdam structure cost and difficulty in underwater repair in the water mat pond bottom plate repair technology is solved, and dry repair in the water mat pond is realized, reducing operating costs and ensuring safety.
Patent Information
- Application Number
- CN202310741887.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-21
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2043-06-21
AI Technical Summary
The existing water cushion pond bottom plate repair technology has the problems of high cost of construction and demolition of cofferdam structures, long construction period, high difficulty in underwater restoration work, and reduced performance caused by concrete overwater.
A movable dry cabin is designed, through the overall movement of the dry cabin along the extension direction of the water cushion pond and the up and down movement of the repair cabin, the repair cabin reaches the position that needs to be repaired without relying on hoisting equipment. The repair cabin is equipped with multiple movable plates, which can be automatically opened, allowing maintenance personnel to reach any position in the bottom of the water mat pond for repair.
It realizes dry repair operation in the case of water in the water cushion pond, and can quickly repair the bottom plate damage while the water cushion pond is stored normally, reduces operating costs, simplifies the operation process, and ensures the safety of maintenance personnel.
Smart Images
Figure CN116695631B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of water conservancy projects, and particularly to a movable dry cabin for local repair of the concrete floor slab of a plunge pool. Background Art
[0002] A plunge pool is an anti-scour protection project downstream of the arch dam near the dam body. It undertakes the energy-dissipating water flow to prevent the water flow from scouring and damaging the dam foundation, ensuring the safety and reliability of the arch dam. Currently, the plunge pool is mainly built of reinforced concrete structure. During the construction period and the operation period, the structure of the plunge pool may be damaged due to various reasons, threatening the normal operation of the plunge pool. Among them, during the construction period, some steel structure components may fall into and be left in the plunge pool, and damage the surface of the plunge pool floor slab during the water discharge process, resulting in the shedding of concrete mortar, the exposure of steel bars, and even the formation of cracks and pits. At the same time, during the operation period, due to the long-term scouring and corrosion of the water flow, erosion pits and damages may appear on the water-facing surface of the plunge pool concrete. The impact jet can form a dynamic water pressure on the upper surface of the floor slab and transmit it along the cracks to the lower part of the floor slab, forming an upward resultant force, seriously affecting the stability of the plunge pool floor slab. The surface defects of the plunge pool concrete mainly include stepped joints, hanging curtains, air bubbles, and honeycombing and pockmarking, etc. During the operation period of the plunge pool, it is necessary to regularly repair and maintain the surface defects of the concrete floor slab.
[0003] In the existing repair technologies for the plunge pool floor slab, in order to achieve engineering treatment under the condition that the plunge pool does not stop production and there is water, the damaged parts are mainly repaired by means of cofferdam repair and pouring, underwater repair and pouring, etc. Among them, the cofferdam repair has the disadvantages of high cost for the construction and demolition of the cofferdam structure and long construction period, while the underwater repair has problems such as high working difficulty and reduced performance due to the concrete passing through water. The dry cabin, as a cabin structure that can provide a dry and watertight working environment underwater, can meet the requirements for repairing the plunge pool floor slab in the presence of water, avoiding the disadvantages of the traditional methods. Currently, the dry cabin is mainly applied to the repair of underwater oil and gas pipelines and can be divided into two categories: the pile-driven dry cabin and the suction anchor dry cabin. Among them, the pile-driven dry cabin is hoisted by a floating crane and placed in a suitable position on the seabed by using the fixed piles at the bottom of the cabin; the suction anchor dry cabin, after being hoisted to a suitable position, uses the negative pressure cylinder structure below the cabin body to press the cylinder into the seabed, thereby realizing the fixation of the dry cabin. However, the operation process of the above two types of dry cabins is relatively complex and depends on the cooperation of hoisting devices, with problems such as high working cost and long construction period. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a movable dry cabin for local repair of the concrete floor of a plunge pool. Through the movement of the dry cabin as a whole along the extension direction of the plunge pool and the up and down movement of the repair cabin, the repair cabin can reach the position to be repaired in the plunge pool without relying on hoisting equipment. And the repair cabin is provided with multiple movable plates which can be automatically opened, so that maintenance personnel can reach any position of the plunge pool floor to perform local repair on the concrete floor of the plunge pool.
[0005] The present invention is realized by the following technical solutions:
[0006] A movable dry cabin for local repair of the concrete floor of a plunge pool, including a sealed dry cabin body. The cross-sectional shape of the dry cabin body matches that of the plunge pool and is slidably installed on the inner wall of the plunge pool along the extension direction of the plunge pool. The dry cabin body includes a repair cabin, an operation cabin and an emergency shelter. The operation cabin and the emergency shelter are arranged on both sides of the repair cabin, and the repair cabin is slidably connected up and down with the operation cabin and the emergency shelter. A normally closed watertight docking door is provided between the repair cabin and the operation cabin, and an emergency escape opening is provided between the repair cabin and the emergency shelter. The repair cabin includes a repair cabin floor, a repair cabin roof and four walls of the repair cabin. The repair cabin floor includes a floor frame and multiple movable plates. The floor frame is fixedly connected with the four walls of the repair cabin, and the floor frame is provided with multiple movable plate installation frames. Each movable plate is hinged to the movable plate installation frame through a hinge shaft. Watertight rubber strips are respectively arranged around the lower surface of the floor frame, and watertight strips are arranged at the edges of each movable plate.
[0007] Further, a control system is installed in the operation cabin. The control system controls the automatic movement of the dry cabin body along the extension direction of the plunge pool, controls the automatic up and down movement of the repair cabin along the operation cabin and the emergency shelter, and controls the automatic rotation of the hinge shaft of each movable plate.
[0008] Further, the multiple movable plates are arranged in a matrix at the bottom of the entire repair cabin, and a movable plate locking device is provided between each movable plate and the floor frame.
[0009] Optimally, a plunge pool guide rail is arranged on the inner wall of the plunge pool along the extension direction of the plunge pool. Outer cabin rollers are installed on the outer wall of the dry cabin body, and the outer cabin rollers are clamped on the plunge pool guide rail. The control system controls the outer cabin rollers to roll along the plunge pool guide rail to realize the sliding of the dry cabin body along the extension direction of the plunge pool.
[0010] Further, a roller locking device is provided between the outer cabin rollers and the plunge pool guide rail.
[0011] Optimally, cabin-to-cabin guide rails are respectively and fixedly installed on the outer walls of the operation cabin and the emergency shelter. The repair cabin is installed on the cabin-to-cabin guide rails, and the control system controls the repair cabin to move up and down along the cabin-to-cabin guide rails.
[0012] Furthermore, there is a staff entrance and exit at the top of the operation cabin, and an operation cabin watertight cabin and a remotely controlled folding watertight passage are provided at the staff entrance and exit.
[0013] Furthermore, the repair cabin is provided with a main umbilical interface and an exhaust port. The main umbilical interface is connected to the main umbilical through a main umbilical flange. An air supply pipe and a cement pump material pipe are provided in the main umbilical. The air supply pipe is connected to an air supply device, the cement pump material pipe is connected to a concrete supply device, and the exhaust port is connected to an exhaust pipe.
[0014] Advantages of the invention:
[0015] 1. The present invention provides a dry maintenance environment for the local repair of the concrete floor of the plunge pool, enabling dry repair operations under the condition that there is water in the plunge pool, and capable of quickly repairing the damage of the floor while the plunge pool is storing water normally;
[0016] 2. The structure of the present invention is simple, the operation is convenient, the positioning and lifting of the movable dry cabin do not require the cooperation of other devices, and the operation cost after completion is relatively low;
[0017] 3. The dry cabin in the present invention adopts a movable design and can complete the repair of any position of the plunge pool floor. During operation, it is convenient and efficient, and can quickly position the movable dry cabin at the damaged position of the floor. When idle, the movable dry cabin can be docked at one end of the plunge pool without affecting the normal operation of the plunge pool. Description of the drawings
[0018] Figure 1 is a schematic diagram of the working state of the movable dry cabin of the present invention.
[0019] Figure 2 is a schematic diagram of the docking state of the movable dry cabin of the present invention.
[0020] Figure 3 is a schematic diagram of the external structure of the movable dry cabin of the present invention.
[0021] Figure 4 is a schematic diagram of the disassembled structure of the movable dry cabin of the present invention.
[0022] In the figure: 1. Plunge pool guide rail, 2. Plunge pool, 3. Operation cabin, 4. Repair cabin, 5. Emergency shelter cabin, 6. Plunge pool concrete floor, 7. Outer roller of the cabin body, 8. Main umbilical interface, 9. Watertight rubber strip, 10. Exhaust port, 11. Remotely controlled folding watertight passage, 12. Watertight docking door in normal state, 13. Movable plate, 14. Floor frame, 15. Emergency escape opening, 16. Guide rail between cabins. Detailed implementation manners
[0023] A movable dry cabin for local repair of the concrete floor of a plunge pool. The schematic diagram of the working state of the movable dry cabin is as shown in Figure 1 shown, and the schematic diagram of the docking state of the movable dry cabin is as shown in Figure 2 shown, and the schematic diagram of the external structure of the movable dry cabin is as shown in Figure 3 shown, and the schematic diagram of the disassembled structure of the movable dry cabin is as shown in Figure 4 shown. The movable dry cabin includes a sealed dry cabin body. The cross-sectional shape of the dry cabin body matches that of the plunge pool 2 and is slidably installed on the inner wall of the plunge pool along the extension direction of the plunge pool. The cross-sectional length of the dry cabin body is slightly less than the cross-sectional length of the plunge pool at the installation position of the cabin body, which is convenient for installation. And the height of the dry cabin body is much less than the height of the plunge pool, making the volume of the movable dry cabin as light as possible under the condition of meeting the maintenance requirements, which is convenient for movement and does not affect the normal operation of the plunge pool when not under maintenance;
[0024] The dry cabin body includes a repair cabin 4 in the middle, and operation cabins 3 and emergency shelters 5 located on both sides of the repair cabin respectively. The repair cabin is slidably connected up and down with the operation cabin and the emergency shelter. A normally closed watertight docking door 12 is provided between the repair cabin and the operation cabin, and an emergency escape opening 15 is provided between the repair cabin and the emergency shelter. In the normal state without maintenance, maintenance personnel can enter and exit between the repair cabin and the operation cabin through the normally closed watertight docking door. An emergency escape opening is provided between the repair cabin and the emergency shelter. In the maintenance state, if dangerous situations such as water leakage occur, maintenance personnel can enter the emergency shelter from the repair cabin through the emergency escape opening for refuge;
[0025] The repair cabin includes a repair cabin floor, a repair cabin roof and four walls of the repair cabin. The repair cabin floor includes a floor frame 14 and multiple movable plates 13. The floor frame is fixedly connected to the four walls of the repair cabin, and the floor frame is provided with multiple movable plate installation frames. Each movable plate is hinged to the movable plate installation frame through a hinge shaft.
[0026] Watertight rubber strips 9 are respectively provided around the lower surface of the floor frame. When the repair cabin descends to the bottom of the plunge pool, the watertight rubber strips contact the concrete. Since the concrete floor of the plunge pool is not absolutely horizontal, the soft watertight rubber strips can ensure the watertightness inside the repair cabin when the bottom of the repair cabin is in contact with the concrete floor. And watertight strips are provided at the edges of each movable plate, which can further ensure the watertightness of the repair cabin chamber during the process of the bottom of the repair cabin entering the water and when the movable plates are closed.
[0027] When the movable dry cabin provided by the present invention is used for local repair of the concrete bottom slab of the plunge pool, the operator moves the whole dry cabin body along the extension direction of the plunge pool to the damaged position of the concrete bottom slab 6 of the plunge pool. Then, the repair cabin in the middle is lowered to the bottom of the plunge pool, so that the watertight rubber strip on the lower surface of the bottom plate frame of the repair cabin is in close contact with the concrete bottom slab of the plunge pool to ensure the watertightness inside the repair cabin. Then, the movable plate at the bottom of the repair cabin at the position to be repaired is lifted upward and opened, and can be fixed on the four walls of the repair cabin through movable plate locking devices such as buckles or pins. Then, the repair of the concrete cracks and defects at the bottom of the plunge pool is carried out. After the repair is completed, the movable plate at the bottom of the repair cabin is closed, and then the repair cabin is lifted to the same height as the chambers on both sides, moved back to one end of the plunge pool and docked. The staff exits the cabin, and the repair work of the concrete bottom slab of the plunge pool is completed.
[0028] The movable dry cabin provided by the present invention, through the movement of the dry cabin body along the extension direction of the plunge pool, the up and down sliding of the repair cabin along the operation cabin and the emergency shelter cabin, and the setting of multiple movable plates, enables the positioning and lifting of the movable dry cabin without the cooperation of other devices. The structural form is simple, the operation is convenient, and the operation cost after completion is relatively low; and it can quickly position the movable dry cabin to the damaged position of the bottom plate and complete the repair of any position of the bottom slab of the plunge pool. When idle, the movable dry cabin can be docked at one end of the plunge pool without affecting the normal operation of the plunge pool; and because watertight rubber strips are respectively arranged around the lower surface of the bottom plate frame, and watertight strips are arranged at the edges of each movable plate, a dry repair environment is provided for the local repair of the concrete bottom slab of the plunge pool, realizing the dry repair operation when there is water in the plunge pool, and enabling the rapid repair of the damage of the bottom slab of the plunge pool under the condition of normal water storage in the plunge pool; at the same time, due to the setting of the mutually isolated repair cabin, operation cabin and emergency shelter cabin, even if the repair cabin leaks, the equipment in the operation cabin will not be affected, and in case of a critical situation, the maintenance personnel can also enter the emergency shelter cabin for refuge, ensuring the safety of the maintenance personnel.
[0029] Furthermore, a control system is installed in the operation cabin. The control system controls the automatic movement of the dry cabin body along the extension direction of the plunge pool, controls the automatic up and down movement of the repair cabin along the operation cabin and the emergency shelter cabin, and controls the automatic rotation of the hinge shaft of each movable plate. The control system can control the corresponding components to act automatically, saving time and effort.
[0030] Furthermore, multiple movable plates are arranged in a matrix at the bottom of the whole repair cabin, and a movable plate locking device (not shown) is provided between each movable plate and the bottom plate frame.
[0031] Optimized, a water cushion pond guide rail 1 is arranged along the extension direction of the water cushion pond on the upper edge of the inner wall of the water cushion pond. An outer cabin roller 7 is installed on the outer wall of the dry cabin. The outer cabin roller is clamped on the water cushion pond guide rail. The control system controls the outer cabin roller to roll along the water cushion pond guide rail to realize the sliding of the dry cabin along the extension direction of the water cushion pond. By adopting the cooperation mode of the guide rail and the roller, the movement of the dry cabin along the extension direction of the water cushion pond is realized, and the structure is simple and the operation is stable and reliable.
[0032] Further, a roller locking device (not shown) is provided between the outer cabin roller and the water cushion pond guide rail. When the dry cabin moves horizontally to the designated position, the dry cabin can be fixed on the water cushion pond guide rail by using the roller locking device to ensure that the dry cabin does not move horizontally.
[0033] Optimized, cabin-to-cabin guide rails 16 are respectively fixedly installed on the outer walls of the operation cabin and the emergency shelter cabin. The repair cabin is installed on the cabin-to-cabin guide rail and is controlled by the control system to move up and down along the cabin-to-cabin guide rail. Similarly, the way of setting rollers on the repair cabin can also be adopted to cooperate with the cabin-to-cabin guide rail, and a roller locking device can be set, or other self-locking methods can be adopted, such as installing a sprocket and chain device on the cabin-to-cabin guide rail to drive the repair cabin to move up and down.
[0034] Further, a staff entrance and exit is provided at the top of the operation cabin. An operation cabin watertight cabin and a remote-controlled folding watertight passage 11 are provided at the staff entrance and exit. When the water level of the water cushion pond is lower than the height of the dry cabin, the staff can directly open the operation cabin watertight cabin door at the top of the operation cabin to enter, and the watertight passage is in a folded state. When the water level of the water cushion pond is higher than the height of the dry cabin, the staff needs to remotely control the opening of the folding watertight passage and extend it above the water level line, and enter the operation cabin through the watertight passage.
[0035] Further, the repair cabin is provided with a main umbilical interface 8 and an exhaust port 10. The main umbilical interface is connected to the main umbilical through a main umbilical flange. An air supply pipe and a cement pump material pipe are provided in the main umbilical. The air supply pipe is connected to an air supply device, the cement pump material pipe is connected to a concrete conveying system, and the exhaust port is connected to an exhaust pipe. The air supply pipe can provide a gas source for maintenance, the cement pump material pipe can provide concrete for maintenance, and the exhaust pipe can discharge the flue gas in the repair cabin to ensure the air quality in the repair cabin.
[0036] In summary, a movable dry cabin for local repair of the concrete floor of a water cushion pond provided by the present invention realizes the repair cabin reaching the position to be repaired in the water cushion pond through the movement of the whole dry cabin along the extension direction of the water cushion pond and the up and down movement of the repair cabin, without relying on a hoisting device, and the repair cabin is provided with multiple movable plates that can be automatically opened, so as to enable maintenance personnel to reach any position of the water cushion pond floor to perform local repair on the concrete floor of the water cushion pond.
[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A movable dry cabin for local repair of the concrete floor slab of a plunge pool, characterized in that, it includes a sealed dry cabin body, the cross-sectional shape of the dry cabin body matches that of the plunge pool and is slidably installed on the inner wall of the plunge pool along the extension direction of the plunge pool. The dry cabin body includes a repair cabin, an operation cabin and an emergency shelter cabin. The operation cabin and the emergency shelter cabin are arranged on both sides of the repair cabin, and the repair cabin is slidably connected up and down with the operation cabin and the emergency shelter cabin. There is a normally-closed watertight docking door between the repair cabin and the operation cabin, and there is an emergency escape opening between the repair cabin and the emergency shelter cabin. The repair cabin includes a repair cabin floor, a repair cabin roof and four walls of the repair cabin. The repair cabin floor includes a floor frame and multiple movable plates. The floor frame is fixedly connected to the four walls of the repair cabin, and the floor frame is provided with multiple movable plate installation frames. Each movable plate is hinged to the movable plate installation frame through a hinge shaft. Watertight rubber strips are respectively arranged around the lower surface of the floor frame, and watertight strips are arranged at the edges of each movable plate. A control system is installed in the operation cabin. The control system controls the dry cabin body to automatically move along the extension direction of the plunge pool, controls the repair cabin to automatically move up and down along the operation cabin and the emergency shelter cabin, and controls the hinge shaft of each movable plate to automatically rotate. A plunge pool guide rail is arranged on the inner wall of the plunge pool along the extension direction of the plunge pool. An outer cabin roller is installed on the outer wall of the dry cabin body, and the outer cabin roller is clamped on the plunge pool guide rail. The control system controls the outer cabin roller to roll along the plunge pool guide rail to realize the sliding of the dry cabin body along the extension direction of the plunge pool. Watertight cabin guides are respectively fixedly installed on the outer walls of the operation cabin and the emergency shelter cabin. The repair cabin is installed on the cabin guides and is controlled by the control system to move up and down along the cabin guides.
2. The movable dry cabin for local repair of the concrete floor slab of a plunge pool according to claim 1, characterized in that, the multiple movable plates are arranged in a matrix at the bottom of the entire repair cabin, and a movable plate locking device is arranged between each movable plate and the floor frame.
3. The movable dry cabin for local repair of the concrete floor slab of a plunge pool according to claim 1, characterized in that, a roller locking device is arranged between the outer cabin roller and the plunge pool guide rail.
4. The movable dry cabin for local repair of the concrete floor slab of a plunge pool according to claim 1, characterized in that, a staff entrance and exit is arranged at the top of the operation cabin, and an operation cabin watertight cabin and a remote-controlled folding watertight passage are arranged at the staff entrance and exit.
5. The movable dry cabin for local repair of the concrete floor slab of a plunge pool according to claim 2, characterized in that, the repair cabin is provided with a main umbilical interface and an exhaust port. The main umbilical interface is communicated with the main umbilical through a main umbilical flange. An air supply pipe and a cement pump material pipe are arranged in the main umbilical. The air supply pipe is communicated with an air supply device, and the cement pump material pipe is communicated with a concrete supply device. The exhaust port is communicated with an exhaust pipe.
Citation Information
Patent Citations
Underwater repair system for cavity region of concrete panel rock-fill dam panel
US20210164183A1