A modular cofferdam device facilitating transition and its transition method

Abstract

A modular cofferdam device convenient for transfer and its transfer method, comprising a flow-through area module, a dry area module and a docking module; both the flow-through area module and the dry area module include floating boxes and two side walls. The floating box is a rectangular hollow box structure. One end of each of the two side walls is fixedly connected to the two ends of its corresponding floating box respectively. The side wall is in sealed cooperation with its corresponding floating box. Both sides of the side wall in the dry area module are sealed by sealing baffles. Removable floating box baffles are arranged at both ends of the floating box. At the same time, a ballast pump is arranged inside the floating box. The floating box forms a sealed structure by installing the floating box baffles, providing buoyancy for the cofferdam device. The water in each floating box can be discharged respectively through the ballast pump to make the cofferdam device float for easy transfer. This design can not only control the mass and floating state of the cofferdam device through the floating box baffles and the ballast pump, enabling the cofferdam device to be transferred as a whole, but also can enclose some canal sections without interrupting the water conveyance in the canal, avoiding the interruption of water supply.

Description

Technical Field

[0001] The present invention relates to a cofferdam device, and more particularly to a modular cofferdam device convenient for transfer and a transfer method thereof, which are specifically applicable to a modular cofferdam device convenient for transfer that can be easily moved between different canal sections and can form a cofferdam under the condition of not interrupting the water conveyance of the canal, and a transfer method thereof. Background Art

[0002] A canal refers to an artificial watercourse with a free water surface, and a lining plate is laid inside the watercourse. The lining plate can effectively prevent the water in the canal from leaking, and at the same time prevent the surrounding rock from deforming or collapsing. It is an essential facility in the water transfer project. However, affected by complex geological conditions, high groundwater, floods, frost heaving and other factors, the lining plate of the canal will be damaged in forms such as cracking, bulging, and caving, which affects the safe and stable operation of the canal. Especially for large-scale water transfer projects, facing water users in multiple places, once the water supply is interrupted, it will cause a greater social impact. Therefore, in order to continuously supply water to users as much as possible and reduce the impact of repair construction on the water supply capacity, it is necessary to form a dry foundation pit by using a cofferdam under the condition of not interrupting the water conveyance of the canal for lining plate repair construction.

[0003] In the water transfer project, the repair of the lining plate usually uses a cofferdam device to enclose the target canal section, and the lining plate is repaired after the target canal section is dried. Although this device can effectively enclose the target canal section to facilitate the repair operation of construction workers, it still has the following defects:

[0004] 1. There may be multiple places where the lining plate needs to be repaired on a certain canal section, and the cofferdam equipment cannot perform the repair operation by cofferdamming at one time even at the maximum effective length. Therefore, no matter what kind of cofferdam equipment, it will face the problem of being transferred to the target canal section for construction. At present, most of the cofferdam equipment in use needs to be disassembled after the repair of one canal section, and then the equipment is transported to the next canal section for reinstallation. In this case, it will greatly affect the time for forming a dry area for the repair of the lining plate of the canal section. At the same time, during the repeated disassembly and assembly process of the equipment, the repeated utilization rate of the equipment will be reduced.

[0005] 2. The existing cofferdam devices often need to completely close the canal, resulting in the interruption of the water supply.

[0006] Disclosing the information of this background art section is only intended to increase the understanding of the overall background of the present application, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0007] The object of the present invention is to overcome the disadvantages existing in the prior art, such as the complexity of movement between different canal sections, the relatively slow transfer speed, and the interruption of water supply during cofferdam construction. A modular cofferdam device that is convenient for movement between different canal sections and is easy to transfer, and a transfer method thereof are provided, which can perform cofferdam construction without interrupting the water conveyance in the canal.

[0008] To achieve the above object, the technical solution of the present invention is:

[0009] A modular cofferdam device that is convenient for transfer and a transfer method thereof. The cofferdam device includes: a flow-through area module, a dry area module, and a docking module; the flow-through area module includes a flow-through area floating box and two flow-through bridges. The flow-through area floating box is a rectangular hollow box structure. The two flow-through bridges are both three-dimensional frame structures. The two flow-through bridges are arranged in parallel with each other. One end of each of the two flow-through bridges is fixedly connected to both ends of the flow-through area floating box respectively. The dry area module includes a dry area floating box and two dry area side arms. The dry area floating box is a rectangular hollow box structure. Waterproof plate-like structures are arranged on the water-facing surfaces of the two dry area side arms. The two dry area side arms are arranged in parallel with each other. One end of each of the two dry area side arms is fixedly connected to both ends of the dry area floating box respectively. The two dry area side arms are in sealing cooperation with the dry area floating box. The bottoms of the two dry area side arms are in sealing cooperation with the canal slopes of the canal respectively. The docking module is a flat plate structure. Connection grooves that cooperate with the flow-through area module and the dry area module are arranged on the top of the docking module. The flow-through area floating box and the dry area floating box are detachably and fixedly arranged on the top of the docking module. The opposite sides of the flow-through area floating box and the dry area floating box are connected as a whole.

[0010] The dry area side arm is composed of a plurality of sealing baffles, a plurality of dry area base modules, and a plurality of dry area side arm modules. The plurality of dry area base modules are all flat plate structures. The plurality of dry area side arm modules are all three-dimensional frame structures. Two slots are oppositely arranged on the left and right outer edges of the two side walls of the dry area side arm module. The distance between the two slots is equal to the width of the sealing baffle. A sealing baffle is arranged in the slot on one side wall of the dry area side arm module. The sealing baffle is inserted and matched with the two slots. Sealing gaskets are arranged in both of the two slots. The slot is in sealing cooperation with the sealing baffle through the sealing gasket arranged inside it. The plurality of dry area side arm modules are connected to form an integral dry area side arm wall panel. The plurality of dry area base modules are sequentially connected end to end to form an integral dry area side arm base. The dry area side arm base is matched with the canal slope of the canal. The top of the dry area side arm base is fixedly connected to the bottom of the dry area side arm wall panel.

[0011] The flow-through bridge is composed of multiple flow-through area base modules and multiple flow-through bridge modules. The multiple flow-through area base modules are all flat structures, and the multiple flow-through bridge modules are all three-dimensional frame structures. The multiple flow-through area base modules are sequentially connected end to end to form a flow-through bridge base of an integral structure. The flow-through bridge base is matched with the slope of the channel. The multiple flow-through bridge modules are interconnected to form a flow-through bridge wall panel of an integral structure. The bottom of the flow-through bridge wall panel is fixedly connected to the top of the flow-through bridge base.

[0012] The dry area module further includes multiple sealing modules. The sealing modules are all fixedly arranged in the flow-through area base module and the dry area base module. The adjacent dry area base modules are sealed and matched through the sealing modules arranged thereon. The sealing module includes a sealing block, a sealing groove and a sealing bladder. The bottom of the sealing block is matched with the slope of the channel, and the side of the sealing block is matched with the side wall of the channel. Sealing grooves are formed in both the bottom and the side of the sealing block, and sealing bladders are fixedly arranged in the sealing grooves. The sealing block is sealed and matched with the slope of the channel or the side wall of the channel through the sealing bladder arranged thereon.

[0013] The flow-through area floating box and the dry area floating box have the same structure. The flow-through area floating box includes an upper floating box frame, a lower floating box frame and four floating box baffles. Both the upper floating box frame and the lower floating box frame are rectangular parallelepiped frame structures. The side walls and the top of both sides of the upper floating box frame are sealed by steel plates. The side walls and the bottom of both sides of the lower floating box frame are sealed by steel plates. The bottom of the upper floating box frame is fixedly connected to the top of the lower floating box frame, and the bottom of the upper floating box frame is sealed and matched with the top of the lower floating box frame. One floating box baffle is detachably fixedly arranged at both ends of the upper floating box frame and the lower floating box frame, and both ends of the upper floating box frame and the lower floating box frame are sealed through the floating box baffles arranged thereon.

[0014] An access hatch is formed in the steel plate on the top of the upper floating box frame. A ballast pump is fixedly arranged in the lower floating box frame. The ballast pump is arranged directly below the access hatch. The water inlet of the ballast pump is arranged inside the lower floating box frame, and the water outlet of the ballast pump is arranged outside the lower floating box frame.

[0015] The cofferdam device further includes a submersible pump. The submersible pump is arranged between the two dry area side arms and is fixedly arranged on the side wall of the dry area floating box. The water inlet of the submersible pump is arranged between the two dry area side arms, and the water outlet of the submersible pump is arranged outside the dry area side arm.

[0016] The cofferdam device further includes multiple walkway floors, which are evenly arranged on the tops of the flow-through area modules and the dry area modules.

[0017] A method for transferring a modular cofferdam device facilitating transition, the transfer method comprising:

[0018] The first step: pre-assembling modules. Select an appropriate number of flow-through bridges, flow-through area base modules, dry area base modules and dry area side arm modules according to the cross-section of the channel to be enclosed. Install each selected flow-through bridge and flow-through area base module onto the flow-through area floating box to form a flow-through area module matching the channel slope, and at the same time install each selected dry area base module and dry area side arm module onto the dry area floating box to form a dry area module matching the channel slope. Seal the two ends of the flow-through area floating box and the dry area floating box with floating box baffles. At this time, the pre-assembling module step is completed;

[0019] The second step: installing the cofferdam device. Place the docking module in the middle of the target section of the channel to be enclosed, place the flow-through area module above the flow-through area of the target section, and place the dry area module above the dry area of the target section. After the flow-through area module, the dry area module and the docking module are all placed, the operator sequentially installs the flow-through area module and the dry area module onto the docking module. After each module is installed, remove the floating box baffles of the installed flow-through area floating box and dry area floating box. At this time, the water in the channel enters the flow-through area floating box and the dry area floating box, and at the same time the cofferdam device sinks. When the cofferdam device sinks, the operator adjusts the position of the cofferdam device through a tractor, etc., so that the cofferdam device correctly lands on the target section. When the bottom of the cofferdam device sinks to the bottom, the step of assembling the cofferdam device is completed;

[0020] The third step: the drainage step. The operator fills the medium into each sealing bag to make the sealing bag expand. When the sealing bag fills the gap between the dry area module and the channel slope, the dry area floating box and the two dry area side arms enclose a dry area with the channel. At this time, the operator starts the submersible pump, and the submersible pump gradually drains the water in the dry area. When the water in the dry area is completely drained, the drainage step is completed, and the operator starts to operate in the dry area. After the operator's operation is completed, enter the fourth step, the transfer step;

[0021] The fourth step: the transfer step. The operator installs the floating box baffles at the two ends of the flow-through area floating box and the dry area floating box, and seals the flow-through area floating box and the dry area floating box through the floating box baffles. After the flow-through area floating box and the dry area floating box are sealed, start the ballast pump. At this time, the ballast pump drains the water in the flow-through area floating box and the dry area floating box, and at the same time the operator extracts the medium in each sealing bag. At this time, the weight of the cofferdam device decreases and it starts to float. After the cofferdam device floats, the operator uses a tractor to tow the cofferdam device to a new target section, and repeats the third step, the drainage step. At this time, the transfer of the cofferdam device is completed.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In a modular cofferdam device for facilitating transfer in the present invention, the cofferdam device includes a flow-through area module, a dry area module, and a docking module. The flow-through area module includes a flow-through area floating box and two flow-through bridges. The dry area module includes a dry area floating box and two dry area side arms. Both the flow-through area floating box and the dry area floating box are rectangular hollow box structures. Both of the two flow-through bridges are three-dimensional frame structures. A waterproof plate-like structure is provided on the water-facing side of the dry area side arms. One ends of the two dry area side arms are respectively fixedly connected to two ends of the dry area floating box. The two dry area side arms are in sealed cooperation with the dry area floating box. The bottoms of the two dry area side arms are respectively in sealed cooperation with the channel slopes of the channel. The flow-through area module and the dry area module are connected into one body through the docking module. When in use, the dry area module and the channel slopes enclose a working area, and at the same time, the water in the channel can pass through the flow-through area module. Therefore, this design can enclose some channel sections without interrupting the water conveyance in the channel, avoiding the interruption of water supply.

[0024] 2. In a modular cofferdam device for facilitating transfer in the present invention, both the dry area side arms and the flow-through bridges are composed of a plurality of base modules and a plurality of side wall modules. When in use, suitable-sized side walls can be combined according to the cross-sectional shape and size of the channel to be enclosed. Therefore, this design can adapt to channels to be enclosed with different specifications through the modular dry area side arms and flow-through bridges, effectively expanding the applicable range of the system.

[0025] 3. In a modular cofferdam device for facilitating transfer in the present invention, the dry area module further includes a plurality of sealing modules. The remaining sealing modules are respectively and evenly fixedly arranged at the bottoms of the dry area side arms. Each of the sealing modules is in sealed cooperation with each other. Sealing grooves are provided at the bottoms and sides of each of the sealing modules. Sealing capsules are fixedly arranged in the sealing grooves. When in use, a medium can be filled into the sealing capsules to make the sealing capsules expand. At this time, the sealing capsules block the gaps between the channel and the sealing modules, isolating the working area inside the dry area module from the outside and preventing liquid from entering. Therefore, this design can block the gaps between the channel and the sealing modules through the sealing capsules, effectively improving the sealing performance of the working area inside the dry area module.

[0026] 4. The modular cofferdam device in the present invention for facilitating transfer further includes a plurality of walkway floors. The plurality of walkway floors are evenly arranged on the tops of the flow-through area module and the dry area module to form a walkway. After the cofferdam device has been enclosed, the operator can move on both sides of the cofferdam device and the channel through the walkway, facilitating the operator to operate in the dry area. Therefore, this design can facilitate the movement of the operator through the walkway, effectively improving the working efficiency of the operator.

[0027] 5. In the transfer method of the modular cofferdam device that is convenient for transfer according to the present invention, detachable floating box baffles are provided at both ends of the flow-through area floating box and the dry area floating box. The floating box baffles are in sealing cooperation with the flow-through area floating box and the dry area floating box. At the same time, both the flow-through area floating box and the dry area floating box are provided with ballast pumps. When the floating box baffles are installed, the flow-through area floating box and the dry area floating box form a sealed floating box structure, providing buoyancy for the cofferdam device. The water in each floating box can be discharged through the ballast pumps respectively, reducing the mass of the cofferdam device, making the cofferdam device float and facilitating transfer. At the same time, the floating state of the cofferdam device can be controlled according to the different amounts of water discharged from the floating boxes by the ballast pumps. Therefore, this design can control the mass and floating state of the cofferdam device through the floating box baffles and the ballast pumps, enabling the cofferdam device to be transferred as a whole and effectively improving the convenience of the transfer of the cofferdam device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the structural schematic diagram of the present invention.

[0029] Figure 2 is the side view of the third drainage step of the present invention.

[0030] Figure 3 is the side view of the fourth transfer step of the present invention.

[0031] Figure 4 is Figure 1 the structural schematic diagram of the flow-through area floating box in

[0032] Figure 5 is Figure 1 the structural schematic diagram of the sealing module in

[0033] Figure 6 is Figure 1 the structural schematic diagram of the dry area side arm module in

[0034] Figure 7 is the working principle diagram of the present invention.

[0035] In the figure: flow-through area module 1, flow-through area floating box 11, flow-through bridge 12, flow-through area base module 13, flow-through bridge module 14, flow-through bridge base 15, flow-through bridge wall panel 16, upper floating box frame 17, lower floating box frame 18, floating box baffle 19, dry area module 2, dry area floating box 21, dry area side arm 22, sealing baffle 23, dry area base module 24, dry area side arm module 25, slot 26, dry area side arm base 27, dry area side arm wall panel 28, docking module 3, sealing module 4, sealing block 41, sealing groove 42, sealing capsule 43, access hatch 5, ballast pump 6, submersible pump 7, walkway floor 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The present invention will be further described in detail below in conjunction with the drawings and the detailed description of the embodiments.

[0037] See Figures 1 to 7 , a modular cofferdam device facilitating transition and its transition method. The cofferdam device includes: a flow-through area module 1, a dry area module 2, and a docking module 3. The flow-through area module 1 includes a flow-through area floating box 11 and two flow-through bridges 12. The flow-through area floating box 11 is a rectangular hollow box structure. The two flow-through bridges 12 are both three-dimensional frame structures. The two flow-through bridges 12 are arranged parallel to each other. One end of each of the two flow-through bridges 12 is fixedly connected to both ends of the flow-through area floating box 11 respectively. The dry area module 2 includes a dry area floating box 21 and two dry area side arms 22. The dry area floating box 21 is a rectangular hollow box structure. Waterproof plate-like structures are arranged on the water-facing sides of the two dry area side arms 22. The two dry area side arms 22 are arranged parallel to each other. One end of each of the two dry area side arms 22 is fixedly connected to both ends of the dry area floating box 21 respectively. The two dry area side arms 22 are in sealed cooperation with the dry area floating box 21. The bottoms of the two dry area side arms 22 are in sealed cooperation with the slopes of the channel respectively. The docking module 3 is a flat plate structure. Connection grooves matching with the flow-through area module 1 and the dry area module 2 are arranged on the top of the docking module 3. The flow-through area floating box 11 and the dry area floating box 21 are detachably and fixedly arranged on the top of the docking module 3. The opposite sides of the flow-through area floating box 11 and the dry area floating box 21 are connected as a whole.

[0038] The dry area side arm 22 is composed of a plurality of sealing baffles 23, a plurality of dry area base modules 24, and a plurality of dry area side arm modules 25. The plurality of dry area base modules 24 are all flat plate structures. The plurality of dry area side arm modules 25 are all three-dimensional frame structures. Two slots 26 are oppositely arranged on the left and right outer edges of the side walls on both sides of the dry area side arm module 25. The distance between the two slots 26 is equal to the width of the sealing baffle 23. The sealing baffle 23 is arranged in the slot 26 on one of the side walls of the dry area side arm module 25. The sealing baffle 23 is inserted and matched with the two slots 26. Sealing gaskets are arranged in both of the two slots 26. The slot 26 is in sealed cooperation with the sealing baffle 23 through the sealing gasket arranged inside it. The plurality of dry area side arm modules 25 are connected to form an integral dry area side arm wall panel 28. The plurality of dry area base modules 24 are connected end to end in sequence to form an integral dry area side arm base 27. The dry area side arm base 27 is matched with the slope of the channel. The top of the dry area side arm base 27 is fixedly connected to the bottom of the dry area side arm wall panel 28.

[0039] The flow-through bridge 12 is composed of a plurality of flow-through area base modules 13 and a plurality of flow-through bridge modules 14. The plurality of flow-through area base modules 13 are all flat structures, and the plurality of flow-through bridge modules 14 are all three-dimensional frame structures. The plurality of flow-through area base modules 13 are connected end to end in sequence to form a flow-through bridge base 15 with an integral structure. The flow-through bridge base 15 is matched with the slope of the channel. The plurality of flow-through bridge modules 14 are connected to each other to form a flow-through bridge wall panel 16 with an integral structure. The bottom of the flow-through bridge wall panel 16 is fixedly connected to the top of the flow-through bridge base 15.

[0040] The dry area module 2 further includes a plurality of sealing modules 4. The sealing modules 4 are all fixedly arranged in the flow-through area base modules 13 and the dry area base modules 24. The adjacent dry area base modules 24 are sealed and matched through the sealing modules 4 arranged thereon. The sealing module 4 includes a sealing block 41, a sealing groove 42 and a sealing capsule 43. The bottom of the sealing block 41 is matched with the slope of the channel, and the side part of the sealing block 41 is matched with the side wall of the channel. Sealing grooves 42 are formed in both the bottom and the side part of the sealing block 41, and sealing capsules 43 are fixedly arranged in the sealing grooves 42. The sealing block 41 is sealed and matched with the slope of the channel or the side wall of the channel through the sealing capsules 43 arranged thereon.

[0041] The flow-through area floating box 11 and the dry area floating box 21 have the same structure. The flow-through area floating box 11 includes an upper floating box frame 17, a lower floating box frame 18 and four floating box baffles 19. The upper floating box frame 17 and the lower floating box frame 18 are both cuboid frame structures. The side walls and the top of both sides of the upper floating box frame 17 are sealed by steel plates, and the side walls and the bottom of both sides of the lower floating box frame 18 are sealed by steel plates. The bottom of the upper floating box frame 17 is fixedly connected to the top of the lower floating box frame 18, and the bottom of the upper floating box frame 17 is sealed and matched with the top of the lower floating box frame 18. One floating box baffle 19 is detachably fixedly arranged at both ends of the upper floating box frame 17 and the lower floating box frame 18, and both ends of the upper floating box frame 17 and the lower floating box frame 18 are sealed by the floating box baffles 19 arranged thereon.

[0042] An access hatch 5 is formed in the steel plate on the top of the upper floating box frame 17. A ballast pump 6 is fixedly arranged in the lower floating box frame 18. The ballast pump 6 is arranged directly below the access hatch 5. The water inlet of the ballast pump 6 is arranged inside the lower floating box frame 18, and the water outlet of the ballast pump 6 is arranged outside the lower floating box frame 18.

[0043] The cofferdam device further includes a submersible pump 7. The submersible pump 7 is arranged between two dry area side arms 22, fixedly arranged on the side wall of the dry area floating box 21. The water inlet of the submersible pump 7 is arranged between two dry area side arms 22, and the water outlet of the submersible pump 7 is arranged outside the dry area side arm 22.

[0044] The cofferdam device further includes a plurality of walkway floors 8. The walkway floors 8 are evenly arranged on the tops of the flow-through area module 1 and the dry area module 2.

[0045] A method for transferring a modular cofferdam device that is convenient for transfer. The transfer method includes:

[0046] The first step: pre-assembling the modules. Select an appropriate number of flow-through bridges 12, flow-through area base modules 13, dry area base modules 24, and dry area side arm modules 25 according to the cross-section of the channel to be enclosed. Install the selected flow-through bridges 12 and flow-through area base modules 13 onto the flow-through area floating box 11 to form a flow-through area module 1 that matches the channel slope. At the same time, install the selected dry area base modules 24 and dry area side arm modules 25 onto the dry area floating box 21 to form a dry area module 2 that matches the channel slope. Seal the two ends of the flow-through area floating box 11 and the dry area floating box 21 with the floating box baffle 19. At this time, the pre-assembling module step is completed;

[0047] The second step: installing the cofferdam device. Place the docking module 3 in the middle of the target section of the channel to be enclosed. Place the flow-through area module 1 above the flow-through area of the target section, and place the dry area module 2 above the dry area of the target section. After the flow-through area module 1, the dry area module 2, and the docking module 3 are all placed, the operator sequentially installs the flow-through area module 1 and the dry area module 2 onto the docking module 3. After each module is installed, remove the floating box baffle 19 installed on the flow-through area floating box 11 and the dry area floating box 21. At this time, the water in the channel enters the flow-through area floating box 11 and the dry area floating box 21, and at the same time, the cofferdam device sinks. When the cofferdam device sinks, the operator adjusts the position of the cofferdam device through a tractor, etc., so that the cofferdam device correctly lands on the target section. When the bottom of the cofferdam device reaches the bottom, the assembling cofferdam device step is completed;

[0048] The third step: the drainage step. The operator fills the medium into each sealing capsule 43 to make the sealing capsule 43 expand. When the sealing capsule 43 fills the gap between the dry area module 2 and the channel slope, a dry area is formed between the dry area floating box 21 and the two dry area side arms 22 and the channel. At this time, the operator starts the submersible pump 7, and the submersible pump 7 gradually drains the water in the dry area. When the water in the dry area is completely drained, the drainage step is completed, and the operator starts to operate in the dry area. After the operator's operation is completed, enter the fourth step, the transfer step;

[0049] Step 4: Transfer step. The operator installs the pontoon baffle 19 at both ends of the flow-through area pontoon 11 and the dry area pontoon 21, and closes the flow-through area pontoon 11 and the dry area pontoon 21 through the pontoon baffle 19. After the flow-through area pontoon 11 and the dry area pontoon 21 are closed, start the ballast pump 6. At this time, the ballast pump 6 discharges the water in the flow-through area pontoon 11 and the dry area pontoon 21. At the same time, the operator extracts the medium in each sealing capsule 43. At this time, the weight of the cofferdam device decreases and it starts to float. After the cofferdam device floats up, the operator uses a tractor to tow the cofferdam device to the new target channel section and repeats the drainage step in Step 3. At this time, the transfer of the cofferdam device is completed.

[0050] The principle of the present invention is described as follows:

[0051] In this design, a sealing baffle 23 is arranged in the slot 26 on the dry area side arm module 25 close to the upstream side of the channel.

[0052] When this design is in use, the flow-through area module 1 and the dry area module 2 are assembled in advance or on-site according to the channel specifications. The assembled flow-through area module 1 and dry area module 2 are docked in the middle of the channel, and positioning, docking and locking are carried out through the docking module 3.

[0053] In this design, each module is detachably connected by bolts, and waterproof materials such as waterproof felts and rubber pads are filled between the modules.

[0054] Flow-through area module 1, flow-through area pontoon 11, flow-through bridge 12, flow-through area base module 13, flow-through bridge module 14, flow-through bridge base 15, flow-through bridge wall panel 16, upper pontoon frame 17, lower pontoon frame 18, pontoon baffle 19, dry area module 2, dry area pontoon 21, dry area side arm 22, sealing baffle 23, dry area base module 24, dry area side arm module 25, slot 26, dry area side arm base 27, dry area side arm wall panel 28, docking module 3, sealing module 4, sealing block 41, sealing groove 42, sealing capsule 43, access hatch 5, ballast pump 6, submersible pump 7, walkway floor 8.

[0055] In this design, the shape of the sealing capsule 43 after expansion matches the angle of the channel slope.

[0056] The docking module 3 can be a pure mechanical structure or a mechanical-hydraulic mechanism. When hydraulic control is adopted, a drive medium that will not pollute the water quality can be selected.

[0057] Example 1:

[0058] A modular cofferdam device facilitating transfer and its transfer method. The cofferdam device includes: a flow-through area module 1, a dry area module 2, and a docking module 3. The flow-through area module 1 includes a flow-through area floating box 11 and two flow-through bridges 12. The flow-through area floating box 11 is a rectangular hollow box structure. The two flow-through bridges 12 are both three-dimensional frame structures. The two flow-through bridges 12 are arranged parallel to each other. One end of each of the two flow-through bridges 12 is fixedly connected to both ends of the flow-through area floating box 11 respectively. The dry area module 2 includes a dry area floating box 21 and two dry area side arms 22. The dry area floating box 21 is a rectangular hollow box structure. Waterproof plate-like structures are provided on the water-facing sides of the two dry area side arms 22. The two dry area side arms 22 are arranged parallel to each other. One end of each of the two dry area side arms 22 is fixedly connected to both ends of the dry area floating box 21 respectively. The two dry area side arms 22 are in sealing cooperation with the dry area floating box 21. The bottoms of the two dry area side arms 22 are in sealing cooperation with the slopes of the channel respectively. The docking module 3 is a flat plate structure. Connection grooves matching with the flow-through area module 1 and the dry area module 2 are provided on the top of the docking module 3. The flow-through area floating box 11 and the dry area floating box 21 are detachably and fixedly arranged on the top of the docking module 3. The opposite sides of the flow-through area floating box 11 and the dry area floating box 21 are connected as a whole. The dry area side arm 22 is composed of a plurality of sealing baffles 23, a plurality of dry area base modules 24, and a plurality of dry area side arm modules 25. The plurality of dry area base modules 24 are all flat plate structures. The plurality of dry area side arm modules 25 are all three-dimensional frame structures. Two slots 26 are oppositely arranged on the left and right outer edges of the two side walls of the dry area side arm module 25. The distance between the two slots 26 is equal to the width of the sealing baffle 23. The sealing baffle 23 is arranged in the slot 26 provided on one side wall of the dry area side arm module 25. The sealing baffle 23 is inserted and matched with the two slots 26. Sealing gaskets are provided in both of the two slots 26. The slot 26 is in sealing cooperation with the sealing baffle 23 through the sealing gasket provided inside it. The plurality of dry area side arm modules 25 are connected to form an integral dry area side arm wall panel 28. The plurality of dry area base modules 24 are sequentially connected end to end to form an integral dry area side arm base 27. The dry area side arm base 27 is matched with the slope of the channel. The top of the dry area side arm base 27 is fixedly connected to the bottom of the dry area side arm wall panel 28. The flow-through bridge 12 is composed of a plurality of flow-through area base modules 13 and a plurality of flow-through bridge modules 14. The plurality of flow-through area base modules 13 are all flat plate structures. The plurality of flow-through bridge modules 14 are all three-dimensional frame structures. The plurality of flow-through area base modules 13 are sequentially connected end to end to form an integral flow-through bridge base 15. The flow-through bridge base 15 is matched with the slope of the channel. The plurality of flow-through bridge modules 14 are connected to form an integral flow-through bridge wall panel 16. The bottom of the flow-through bridge wall panel 16 is fixedly connected to the top of the flow-through bridge base 15.The structures of the flow-through area floating box 11 and the dry area floating box 21 are the same. The flow-through area floating box 11 includes an upper floating box frame 17, a lower floating box frame 18, and four floating box baffles 19. Both the upper floating box frame 17 and the lower floating box frame 18 are rectangular parallelepiped frame structures. The side walls and the top of the upper floating box frame 17 are sealed by steel plates. The side walls and the bottom of the lower floating box frame 18 are sealed by steel plates. The bottom of the upper floating box frame 17 is fixedly connected to the top of the lower floating box frame 18, and the bottom of the upper floating box frame 17 is in sealing cooperation with the top of the lower floating box frame 18. One floating box baffle 19 is detachably fixed at both ends of the upper floating box frame 17 and the lower floating box frame 18. Both ends of the upper floating box frame 17 and the lower floating box frame 18 are sealed by the floating box baffles 19 provided thereon. An access hatch 5 is opened on the steel plate at the top of the upper floating box frame 17. A ballast pump 6 is fixedly arranged inside the lower floating box frame 18. The ballast pump 6 is arranged directly below the access hatch 5. The water inlet of the ballast pump 6 is arranged inside the lower floating box frame 18, and the water outlet of the ballast pump 6 is arranged outside the lower floating box frame 18. The cofferdam device further includes a submersible pump 7. The submersible pump 7 is arranged between the two dry area side arms 22. The submersible pump 7 is fixedly arranged on the side wall of the dry area floating box 21. The water inlet of the submersible pump 7 is arranged between the two dry area side arms 22, and the water outlet of the submersible pump 7 is arranged outside the dry area side arm 22.;

[0059] A method for transferring a modular cofferdam device that is convenient for transfer. The transfer method includes:

[0060] The first step: pre-assembling the modules. Select an appropriate number of flow-through bridges 12, flow-through area base modules 13, dry area base modules 24, and dry area side arm modules 25 according to the cross-section of the channel to be enclosed. Install the selected flow-through bridges 12 and flow-through area base modules 13 onto the flow-through area floating box 11 to form a flow-through area module 1 that matches the channel slope. At the same time, install the selected dry area base modules 24 and dry area side arm modules 25 onto the dry area floating box 21 to form a dry area module 2 that matches the channel slope. Seal the two ends of the flow-through area floating box 11 and the dry area floating box 21 through the floating box baffles 19. At this time, the pre-assembling module step is completed;

[0061] Step 2: Install the cofferdam device. Place the docking module 3 in the middle of the target channel section of the channel to be enclosed. Place the flow-through area module 1 above the flow-through area of the target channel section, and place the dry area module 2 above the dry area of the target channel section. After the flow-through area module 1, the dry area module 2, and the docking module 3 are all placed, the operator successively installs the flow-through area module 1 and the dry area module 2 onto the docking module 3. After all the modules are installed, remove the floating box baffles 19 of the flow-through area floating box 11 and the dry area floating box 21 that are installed. At this time, the water in the channel enters the flow-through area floating box 11 and the dry area floating box 21, and at the same time, the cofferdam device sinks. When the cofferdam device sinks, the operator adjusts the position of the cofferdam device through a tractor or the like to make the cofferdam device correctly land on the target channel section. When the bottom of the cofferdam device reaches the bottom, the step of assembling the cofferdam device is completed;

[0062] Step 3: Drainage step. The operator fills the medium into each sealing capsule 43 to make the sealing capsule 43 expand. When the sealing capsule 43 fills the gap between the dry area module 2 and the channel slope, the dry area floating box 21 and the two dry area side arms 22 enclose a dry area with the channel. At this time, the operator starts the submersible pump 7, and the submersible pump 7 gradually drains the water in the dry area. When the water in the dry area is completely drained, the drainage step is completed, and the operator starts to work on the dry area. After the operator finishes the work, enter Step 4 transfer step;

[0063] Step 4: Transfer step. The operator installs the floating box baffles 19 at both ends of the flow-through area floating box 11 and the dry area floating box 21, and closes the flow-through area floating box 11 and the dry area floating box 21 through the floating box baffles 19. After the flow-through area floating box 11 and the dry area floating box 21 are closed, start the deballasting pump 6. At this time, the deballasting pump 6 drains the water in the flow-through area floating box 11 and the dry area floating box 21. At the same time, the operator extracts the medium from each sealing capsule 43. At this time, the weight of the cofferdam device decreases and it starts to float. After the cofferdam device floats up, the operator uses a tractor to tow the cofferdam device to a new target channel section, and repeats the drainage step in Step 3. At this time, the transfer of the cofferdam device is completed.

[0064] Embodiment 2:

[0065] Embodiment 2 is basically the same as Embodiment 1, and the differences are as follows:

[0066] The dry area module 2 further includes a plurality of sealing modules 4, and the sealing modules 4 are all fixedly arranged in the flow-through area base module 13 and the dry area base module 24. The adjacent dry area base modules 24 are hermetically fitted through the sealing modules 4 arranged thereon. The sealing module 4 includes a sealing block 41, a sealing groove 42 and a sealing bladder 43. The bottom of the sealing block 41 is fitted with the slope of the channel, and the side of the sealing block 41 is fitted with the side wall of the channel. Sealing grooves 42 are formed in both the bottom and the side of the sealing block 41, and sealing bladders 43 are fixedly arranged in the sealing grooves 42. The sealing block 41 is hermetically fitted with the slope of the channel or the side wall of the channel through the sealing bladders 43 arranged thereon.

[0067] Embodiment 3:

[0068] Embodiment 3 is basically the same as Embodiment 2, and the difference lies in that:

[0069] The cofferdam device further includes a plurality of walkway floors 8, and the walkway floors 8 are evenly arranged on the tops of the flow-through area module 1 and the dry area module 2.

[0070] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. Any equivalent modification or change made by those of ordinary skill in the art according to the disclosed content of the present invention shall be included in the protection scope recorded in the claims.

Claims

1. A modular cofferdam device facilitating transition, characterized in that: The cofferdam device includes: a flow-through area module (1), a dry area module (2) and a docking module (3); The flow-through area module (1) includes a flow-through area floating box (11) and two flow-through bridges (12). The flow-through area floating box (11) is a cuboid hollow box structure. The two flow-through bridges (12) are both three-dimensional frame structures. The two flow-through bridges (12) are arranged parallel to each other. One end of each of the two flow-through bridges (12) is fixedly connected to both ends of the flow-through area floating box (11). The two flow-through bridges (12) are in sealed cooperation with the flow-through area floating box (11). The dry area module (2) includes a dry area floating box (21) and two dry area side arms (22). The dry area floating box (21) is a cuboid hollow box structure. Waterproof plate-like structures are arranged on the water-facing surfaces of the two dry area side arms (22). The two dry area side arms (22) are arranged parallel to each other. One end of each of the two dry area side arms (22) is fixedly connected to both ends of the dry area floating box (21). The two dry area side arms (22) are in sealed cooperation with the dry area floating box (21). The bottoms of the two dry area side arms (22) are in sealed cooperation with the channel slopes of the channel. The docking module (3) is a flat plate structure. The flow-through area floating box (11) and the dry area floating box (21) are detachably and fixedly arranged on the top of the docking module (3). The opposite sides of the flow-through area floating box (11) and the dry area floating box (21) are connected as a whole; The dry area side arm (22) is composed of a plurality of sealing baffles (23), a plurality of dry area base modules (24) and a plurality of dry area side arm modules (25). The plurality of dry area base modules (24) are all flat plate structures. The plurality of dry area side arm modules (25) are all three-dimensional frame structures. Two slots (26) are oppositely arranged on the left and right outer edges of the left and right side walls of the dry area side arm module (25). The distance between the two slots (26) is equal to the width of the sealing baffle (23). The sealing baffle (23) is arranged in the slot (26) on one side wall of the dry area side arm module (25). The sealing baffle (23) is inserted and matched with the two slots (26). Sealing gaskets are arranged in both of the two slots (26). The slot (26) is in sealed cooperation with the sealing baffle (23) through the sealing gasket arranged inside it. The plurality of dry area side arm modules (25) are connected to form an integral dry area side arm wall panel (28). The plurality of dry area base modules (24) are connected end to end in sequence to form an integral dry area side arm base (27). The dry area side arm base (27) is matched with the channel slope of the channel. The top of the dry area side arm base (27) is fixedly connected to the bottom of the dry area side arm wall panel (28); The flow-through bridge (12) is composed of a plurality of flow-through area base modules (13) and a plurality of flow-through bridge modules (14). The plurality of flow-through area base modules (13) are all in a flat plate structure, and the plurality of flow-through bridge modules (14) are all in a three-dimensional frame structure. The plurality of flow-through area base modules (13) are sequentially connected end to end to form a flow-through bridge base (15) with an integral structure. The flow-through bridge base (15) is matched with the slope of the channel. The plurality of flow-through bridge modules (14) are connected to each other to form a flow-through bridge wall panel (16) with an integral structure. The bottom of the flow-through bridge wall panel (16) is fixedly connected to the top of the flow-through bridge base (15). The dry area module (2) further includes a plurality of sealing modules (4). The sealing modules (4) are all fixedly arranged in the flow-through area base module (13) and the dry area base module (24). The adjacent dry area base modules (24) are sealed and matched through the sealing modules (4) arranged thereon. The sealing module (4) includes a sealing block (41), a sealing groove (42) and a sealing bladder (43). The bottom of the sealing block (41) is matched with the slope of the channel, and the side of the sealing block (41) is matched with the side wall of the channel. Sealing grooves (42) are formed in both the bottom and the side of the sealing block (41), and sealing bladders (43) are fixedly arranged in the sealing grooves (42). The sealing block (41) is sealed and matched with the slope of the channel or the side wall of the channel through the sealing bladder (43) arranged thereon. The flow-through area floating box (11) and the dry area floating box (21) have the same structure. The flow-through area floating box (11) includes an upper floating box frame (17), a lower floating box frame (18) and four floating box baffles (19). Both the upper floating box frame (17) and the lower floating box frame (18) are in a cuboid frame structure. The side walls and the top of the upper floating box frame (17) are sealed by steel plates, and the side walls and the bottom of the lower floating box frame (18) are sealed by steel plates. The bottom of the upper floating box frame (17) is fixedly connected to the top of the lower floating box frame (18), and the bottom of the upper floating box frame (17) is sealed and matched with the top of the lower floating box frame (18). One floating box baffle (19) is detachably fixedly arranged at both ends of the upper floating box frame (17) and the lower floating box frame (18), and both ends of the upper floating box frame (17) and the lower floating box frame (18) are sealed by the floating box baffles (19) arranged thereon. An access hatch (5) is formed in the steel plate on the top of the upper floating box frame (17). A ballast pump (6) is fixedly arranged in the lower floating box frame (18). The ballast pump (6) is arranged directly below the access hatch (5). The water inlet of the ballast pump (6) is arranged inside the lower floating box frame (18), and the water outlet of the ballast pump (6) is arranged outside the lower floating box frame (18).

2. The modular cofferdam device convenient for transfer according to claim 1, characterized in that: The cofferdam device further includes a submersible pump (7). The submersible pump (7) is arranged between two dry area side arms (22). The submersible pump (7) is fixedly arranged on the side wall of the dry area floating box (21). The water inlet of the submersible pump (7) is arranged between two dry area side arms (22), and the water outlet of the submersible pump (7) is arranged outside the dry area side arms (22).

3. The modular cofferdam device convenient for transfer according to claim 2, characterized in that: The cofferdam device further includes a plurality of walkway floors (8). The walkway floors (8) are evenly arranged on the tops of the flow-through area module (1) and the dry area module (2).

4. A transfer method of the modular cofferdam device convenient for transfer according to claim 3, characterized in that: The transfer method includes: The first step: pre-assembling the modules. Select appropriate numbers of flow-through bridges (12), flow-through area base modules (13), dry area base modules (24), and dry area side arm modules (25) according to the cross-section of the channel to be enclosed. Install each selected flow-through bridge (12) and flow-through area base module (13) on the flow-through area floating box (11) to form a flow-through area module (1) that matches the channel slope. At the same time, install each selected dry area base module (24) and dry area side arm module (25) on the dry area floating box (21) to form a dry area module (2) that matches the channel slope. Seal the two ends of the flow-through area floating box (11) and the dry area floating box (21) through the floating box baffle (19). At this time, the pre-assembling module step is completed; The second step: installing the cofferdam device. Place the docking module (3) in the middle of the target section of the channel to be enclosed. Place the flow-through area module (1) above the flow-through area of the target section, and place the dry area module (2) above the dry area of the target section. After the flow-through area module (1), the dry area module (2), and the docking module (3) are all placed, the operator sequentially installs the flow-through area module (1) and the dry area module (2) on the docking module (3). After each module is installed, remove the floating box baffle (19) installed on the flow-through area floating box (11) and the dry area floating box (21). At this time, the water in the channel enters the flow-through area floating box (11) and the dry area floating box (21), and at the same time, the cofferdam device sinks. When the cofferdam device sinks, the operator adjusts the position of the cofferdam device through the tractor to make the cofferdam device correctly land on the target section. When the bottom of the cofferdam device sinks to the bottom, the step of assembling the cofferdam device is completed; The third step: the drainage step. The operator fills the medium into each sealing capsule (43) to make the sealing capsule (43) expand. When the sealing capsule (43) fills the gap between the dry area module (2) and the channel slope, a dry area is formed between the dry area floating box (21) and the two dry area side arms (22) and the channel. At this time, the operator starts the submersible pump (7), and the submersible pump (7) gradually drains the water in the dry area. When the water in the dry area is completely drained, the drainage step is completed, and the operator starts to operate in the dry area. When the operator's operation is completed, enter the fourth step of the transfer step; Fourth step: Transfer step. The operator installs the floating box baffle (19) at both ends of the flow-through area floating box (11) and the dry area floating box (21), and closes the flow-through area floating box (11) and the dry area floating box (21) through the floating box baffle (19). After the flow-through area floating box (11) and the dry area floating box (21) are closed, start the ballast pump (6). At this time, the ballast pump (6) discharges the water in the flow-through area floating box (11) and the dry area floating box (21). At the same time, the operator extracts the medium in each sealing capsule (43). At this time, the weight of the cofferdam device decreases and it starts to float. After the cofferdam device floats up, the operator uses a tractor to tow the cofferdam device to the new target canal section and repeats the third step of the drainage step. At this time, the transfer of the cofferdam device is completed.

Images