Anti-streaming device for ultra-deep underwater concrete pouring of underground diaphragm wall of coastal pump station

Abstract

The utility model discloses a coastal pump station underground diaphragm wall ultra-deep water underground concrete pouring anti-streaming device which comprises a first steel plate, second steel plates are fixedly connected to the two side walls of the first steel plate, a transverse pipe is fixedly connected to the tops of the two second steel plates, and an air pump is fixedly installed at the top of the transverse pipe. The bottom of the end, extending out of the second steel plate, of the transverse pipe is fixedly connected with an air bag, one end of the transverse pipe is fixedly connected with a connecting plate, the top of the connecting plate is provided with a through groove, and the side wall of the second steel plate is fixedly connected with a clamping block. The ends of the iron sheets are tightly attached to the side walls of the groove sections, the blocking effect is achieved, concrete is effectively prevented from flowing around, through mutual cooperation of the sliding rods, the clamping holes, the connecting plates and the clamping blocks, rapid disassembly, assembly and cyclic utilization are facilitated, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of underground continuous wall construction, in particular to an anti-circumference flow device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pump station. Background Art

[0002] The underground continuous wall is a foundation project that uses a trenching machine on the ground to dig a long and narrow deep trench along the peripheral axis of the deep excavation project under the condition of mud wall protection. After the trench is cleared, a steel cage is suspended in the trench, and then underwater concrete is poured using the conduit method to build a unit trench section. This process is carried out section by section to build a continuous reinforced concrete wall underground as a water interception, anti-seepage, load-bearing and water retaining structure.

[0003] During the pouring of the early trench section of the underground continuous wall, there is a high probability that concrete will flow from the gap between the H-steel joint and the trench wall to the later trench section, resulting in the need to use an impact hammer or other measures to spend a lot of time to deal with the flowing concrete during the construction of the later trench section. The concrete bypass makes it impossible for the lap length between the steel cage sealing reinforcement and the H-steel joint of the later trench section to meet the design requirements, which not only affects the connection quality of the ground-connected wall, but also easily leads to water leakage or even water and sand gushing from the wall joints that contain bypass flow in the early stage during the later main body construction.

[0004] In view of this, research and improvement are conducted on the existing problems, and an anti-circumvention device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pumping station is provided. The device is installed with air bags and iron sheets. Gas is introduced into the air bags, and the air bags push the iron sheets outward so that the ends of the iron sheets are close to the side walls of the trough section. The iron sheets play a barrier role, thereby improving the phenomenon of bypass. The device has a reasonable structural design, and aims to achieve the purpose of solving problems and improving practical value through this technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an anti-circumvention device for ultra-deep underwater concrete pouring of underground continuous walls of coastal pumping stations.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-circumference flow device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pump station, comprising a first steel plate, the two side walls of the first steel plate are fixedly connected to the second steel plate, the tops of two groups of the second steel plates are fixedly connected to the cross pipe, the tops of the cross pipes are fixedly installed with an air pump, the bottom of one end of the cross pipe extending out of the second steel plate is fixedly connected to the air bag, one end of the cross pipe is fixedly connected to a connecting plate, the top of the connecting plate is provided with a through groove, and the side walls of the second steel plate are fixedly connected to There is a clamping block, a clamping hole is provided on the top of the clamping block, a sliding rod is movably connected inside the clamping hole, one end of the sliding rod passes through the corresponding through slot and extends to the outside of the connecting plate, the other end of the sliding rod is fixedly connected to a pull rod, the surface of the sliding rod located inside the through slot is sleeved with a limiting plate, a clamping slot is provided on one side of the clamping block, a fixing plate is fixedly connected to the side wall of the cross tube, an iron sheet is fixedly connected to the side wall of the cross tube, a rubber pad is fixedly connected to the side wall of the iron sheet facing away from the airbag, and a baffle is welded on the side wall of the second steel plate close to the bottom of the airbag.

[0007] As a further description of the above technical solution:

[0008] The side wall of the airbag is bonded to the side wall of the second steel plate, an air pipe is fixedly connected through the top of the airbag, and an air valve located inside the corresponding airbag is fixedly connected to the bottom of the air pipe.

[0009] As a further description of the above technical solution:

[0010] A protective plate is bonded to one side of the airbag, and the protective plate is made of rubber material.

[0011] As a further description of the above technical solution:

[0012] A spring is sleeved on the outer side of the slide rod, one end of the spring is fixedly connected to the inner top of the through slot, and the other end of the spring is fixedly connected to one end of the limiting plate.

[0013] As a further description of the above technical solution:

[0014] The connecting plate and the clamping block are both "U"-shaped, and one end of the connecting plate is clamped with the clamping block through a clamping slot.

[0015] As a further description of the above technical solution:

[0016] The iron sheet is fixedly connected to the fixing plate by fastening bolts, and gaskets are sleeved on the surfaces of the fastening bolts.

[0017] As a further description of the above technical solution:

[0018] The side wall of the fixing plate is provided with reinforcing ribs, and the reinforcing ribs are welded integrally with the fixing plate and the transverse tube.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, the device for preventing bypass flow during ultra-deep underwater concrete pouring of underground continuous wall of coastal pump station is provided. Before concrete pouring, gas is introduced into the airbag to expand the airbag. The expanded airbag pushes the iron sheet outward to make the end of the iron sheet close to the side wall of the groove section. During pouring, the iron sheet plays a barrier role, thereby improving the bypass flow phenomenon. By arranging rubber pads, if there are unevenness on the side wall of the groove section, the rubber pads can be deformed to make the rubber pads fit closely to the side wall of the groove section, which can further improve the bypass flow phenomenon. Through the mutual cooperation between the sliding rod, the clamping hole, the connecting plate and the clamping block, the device can be quickly disassembled and assembled for repeated use, thereby reducing waste, improving its practicality and meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an ultra-deep underwater concrete pouring anti-circumvention device for underground continuous walls of coastal pumping stations proposed by the utility model;

[0022] Figure 2 This is an enlarged structural schematic diagram of part A of an ultra-deep underwater concrete pouring anti-circumference device for an underground continuous wall of a coastal pumping station proposed by the utility model;

[0023] Figure 3 A schematic cross-sectional structure diagram of an ultra-deep underwater concrete pouring anti-circumvention device for an underground continuous wall of a coastal pumping station proposed by the utility model;

[0024] Figure 4 This is an enlarged structural schematic diagram of the B part of a device for preventing bypass flow in ultra-deep underwater concrete pouring of underground continuous walls of a coastal pumping station proposed by the utility model;

[0025] Figure 5 This is a schematic diagram of the partial exploded structure of an ultra-deep underwater concrete pouring anti-circumference device for an underground continuous wall of a coastal pumping station proposed by the utility model.

[0026] Legend:

[0027] 1. First steel plate; 2. Second steel plate; 3. Horizontal tube; 4. Air pump; 5. Air bag; 6. Air pipe; 7. Air valve; 8. Protective plate; 9. Connecting plate; 10. Through groove; 11. Limiting plate; 12. Sliding rod; 13. Spring; 14. Pull rod; 15. Block; 16. Slot; 17. Hole; 18. Fixing plate; 19. Reinforcement rib; 20. Iron sheet; 21. Fastening bolt; 22. Gasket; 23. Rubber pad; 24. Baffle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Reference Figure 1-5 A device for preventing bypass flow of ultra-deep underwater concrete pouring of underground continuous wall of coastal pump station, comprising a first steel plate 1, the two side walls of the first steel plate 1 are fixedly connected with second steel plates 2, the tops of two groups of second steel plates 2 are fixedly connected with transverse pipes 3, the tops of the transverse pipes 3 are fixedly installed with air pumps 4, the bottom of one end of the transverse pipe 3 extending out of the second steel plate 2 is fixedly connected with an air bag 5, one end of the transverse pipe 3 is fixedly connected with a connecting plate 9, the top of the connecting plate 9 is provided with a through groove 10, the side walls of the second steel plate 2 are fixedly connected with a clamping block 15, the top of the clamping block 15 is provided with a clamping hole 17, the clamping hole The inner part of 17 is movably connected with a slide bar 12, one end of the slide bar 12 passes through the corresponding through slot 10 and extends to the outside of the connecting plate 9, the other end of the slide bar 12 is fixedly connected with a pull rod 14, the surface of the slide bar 12 located inside the through slot 10 is sleeved with a limiting plate 11, a slot 16 is provided on one side of the block 15, the side wall of the cross tube 3 is fixedly connected with a fixing plate 18, the side wall of the cross tube 3 is fixedly connected with an iron sheet 20, the side wall of the iron sheet 20 facing away from the airbag 5 is fixedly connected with a rubber pad 23, and a baffle 24 is welded to the side wall of the second steel plate 2 near the bottom of the airbag 5.

[0031] Specifically, the side wall of the airbag 5 is bonded to the side wall of the second steel plate 2, an air pipe 6 is fixedly connected to the top of the airbag 5, and an air valve 7 located inside the corresponding airbag 5 is fixedly connected to the bottom of the air pipe 6. This structure can ensure that a good seal is formed between the airbag 5 and the second steel plate 2 during the inflation process to prevent gas leakage, thereby ensuring that the airbag 5 can effectively push the iron sheet 20 outward. The air valve 7 can conveniently control the inlet and outlet of the gas to realize the inflation and exhaust operations of the airbag 5, thereby improving the convenience and controllability during the construction process.

[0032] Specifically, a protective plate 8 is bonded to one side of the airbag 5, and the protective plate 8 is made of rubber material. The main function of the protective plate 8 is to protect the airbag 5 from external physical damage, especially the impact of sharp objects or concrete particles that may be encountered during underwater concrete pouring. The rubber material has good elasticity and wear resistance, and can withstand greater pressure and friction, thereby extending the service life of the airbag 5.

[0033] Specifically, a spring 13 is sleeved on the outer side of the slide bar 12, one end of the spring 13 is fixedly connected to the inner top of the through slot 10, and the other end of the spring 13 is fixedly connected to one end of the limit plate 11. This structure allows the spring 13 to automatically adjust according to the moving range and force of the slide bar 12, providing appropriate resistance for the slide bar 12, ensuring that the movement of the slide bar 12 in the through slot 10 is neither too loose nor too tight, thereby facilitating the rapid disassembly of the device.

[0034] Specifically, the connecting plate 9 and the block 15 are both "U"-shaped, and one end of the connecting plate 9 is connected to the block 15 through the slot 16. The "U"-shaped design of the structure provides a stable support structure for the connecting plate 9 and the block 15, which helps to withstand the force generated during the underwater concrete pouring process. The clamping method achieved by the slot 16 simplifies the installation process, making the assembly of the device faster and more convenient.

[0035] Specifically, the iron sheet 20 is fixedly connected to the fixing plate 18 by fastening bolts 21, and a gasket 22 is sleeved on the surface of the fastening bolts 21. The use of the fastening bolts 21 in this structure ensures a firm connection between the iron sheet 20 and the fixing plate 18, and prevents the iron sheet 20 from shifting or falling off due to vibration or impact during underwater concrete pouring. The design of the gasket 22 and the fastening bolts 21 allows disassembly and reinstallation when necessary, which is convenient for reuse and maintenance of the equipment.

[0036] Specifically, the side wall of the fixed plate 18 is provided with a reinforcing rib 19, and the reinforcing rib 19 is welded to the fixed plate 18 and the cross tube 3. The provision of the reinforcing rib 19 significantly improves the structural strength and rigidity of the fixed plate 18, enabling it to withstand greater pressure and stress during construction, and reduce deformation caused by other external forces.

[0037] Working principle: When using the device, first place the entire device at the joint of the slot section of the underground continuous wall structure. At this time, the airbag 5 is in an uninflated state, so the entire device can be easily placed in, and the protective plate 8 on the airbag 5 does not contact the gap at the slot section joint during the continuous wall construction process. Then start the air pump 4, the air pump 4 extracts the external gas, and the extracted gas is discharged into the horizontal pipe 3. The gas in the horizontal pipe 3 enters the airbag 5 through the air pipe 6 and the air valve 7 in turn. With the entry of gas, the airbag 5 gradually expands, and the airbag 5 squeezes the corresponding iron sheet 20, so that the iron sheet 20 is compressed. The rubber pad 23 on the end of the skin 20 contacts and fits tightly against the side wall of the groove section, thereby improving the bypass phenomenon. After grouting is completed, when the device needs to be disassembled, the pull rod 14 can be pulled, and the pull rod 14 drives the slide bar 12 to move, and the slide bar 12 drives the limit plate 11 to move, thereby compressing the spring 13. At the same time, one end of the slide bar 12 is separated from the corresponding clamping hole 17. At this time, the connecting plate 9 and the second steel plate 2 are released from the clamping state, and then the connecting plate 9 is moved toward the inner side of the second steel plate 2, so that one end of the connecting plate 9 is separated from the clamping block 15, which facilitates the rapid disassembly and recycling of the device and improves its practicality.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preventing bypass flow during ultra-deep underwater concrete pouring of underground continuous wall of a coastal pumping station, comprising a first steel plate (1), characterized in that: The two side walls of the first steel plate (1) are fixedly connected to the second steel plate (2), the tops of the two groups of the second steel plates (2) are fixedly connected to a transverse tube (3), the top of the transverse tube (3) is fixedly installed with an air pump (4), the bottom of one end of the transverse tube (3) extending out of the second steel plate (2) is fixedly connected to an air bag (5), one end of the transverse tube (3) is fixedly connected to a connecting plate (9), the top of the connecting plate (9) is provided with a through groove (10), the side wall of the second steel plate (2) is fixedly connected to a clamping block (15), the top of the clamping block (15) is provided with a clamping hole (17), the inside of the clamping hole (17) is movably clamped with a sliding rod (12), the One end of the slide bar (12) passes through the interior of the corresponding through slot (10) and extends to the outside of the connecting plate (9); the other end of the slide bar (12) is fixedly connected to a pull rod (14); the surface of the slide bar (12) located inside the through slot (10) is sleeved with a limiting plate (11); a card slot (16) is provided on one side of the card block (15); the side wall of the cross tube (3) is fixedly connected to a fixing plate (18); the side wall of the cross tube (3) is fixedly connected to an iron sheet (20); the side wall of the iron sheet (20) facing away from the airbag (5) is fixedly connected to a rubber pad (23); and a baffle (24) is welded to the side wall of the second steel plate (2) close to the bottom of the airbag (5).

2. The anti-circumference device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pumping station according to claim 1 is characterized by: The side wall of the airbag (5) is bonded to the side wall of the second steel plate (2), the top of the airbag (5) is fixedly connected with an air pipe (6), and the bottom of the air pipe (6) is fixedly connected with an air valve (7) located inside the corresponding airbag (5).

3. The anti-circumvention device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pumping station according to claim 1 is characterized by: A protective plate (8) is bonded to one side of the airbag (5), and the protective plate (8) is made of rubber material.

4. The anti-circumvention device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pumping station according to claim 1 is characterized by: A spring (13) is sleeved on the outer side of the slide rod (12), one end of the spring (13) is fixedly connected to the inner top of the through slot (10), and the other end of the spring (13) is fixedly connected to one end of the limiting plate (11).

5. The anti-circumference device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pumping station according to claim 1 is characterized by: The connecting plate (9) and the clamping block (15) are both U-shaped, and one end of the connecting plate (9) is clamped to the clamping block (15) via a clamping groove (16).

6. The device for preventing bypass flow of ultra-deep underwater concrete pouring of underground continuous wall of coastal pumping station according to claim 1, characterized in that: The iron sheet (20) is fixedly connected to the fixing plate (18) via a fastening bolt (21), and a gasket (22) is sleeved on the surface of the fastening bolt (21).

7. The anti-circumvention device for ultra-deep underwater concrete pouring of underground continuous wall of coastal pumping station according to claim 1 is characterized by: The side wall of the fixing plate (18) is provided with a reinforcing rib (19), and the reinforcing rib (19) is welded integrally with the fixing plate (18) and the transverse tube (3).

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