Ultra-deep underwater concrete pouring guide pipe with flexible mixing device and using method of ultra-deep underwater concrete pouring guide pipe

Abstract

The invention discloses an ultra-deep underwater concrete pouring guide pipe with a flexible mixing device and a using method thereof.The pouring guide pipe comprises a plurality of pipe joints connected in sequence, and detachable flexible deflection baffles are arranged at the bottom end of the tail pipe joint and the connecting position of the adjacent pipe joints; the deflection baffle plate applies lateral and upward force to the concrete liquid falling from the guide pipe, so that when the concrete liquid flows through the deflection baffle plate, part of the concrete liquid deflects towards the lateral upper part in the flowing direction and then falls down; and the resultant force direction of the lateral force applied to the concrete liquid by the two vertically adjacent deflection baffles rotates by an angle alpha relative to the axis of the guide pipe. According to the construction environment, the ratio of the flexible deflection baffle to the pipe joint is determined, alpha is set, when the air resistance effect is large, the speed restraining joint is additionally installed, and the air resistance effect is further reduced. The air resistance effect can be remarkably reduced, the flowability and uniformity of concrete are improved, the aggregate separation and segregation phenomena are reduced, and the construction efficiency and quality in the ultra-deep underwater concrete pouring process are improved.

Description

Technical Field

[0001] This invention relates to a concrete pouring conduit, and more particularly to an ultra-deep underwater concrete pouring conduit with a flexible mixing device and its method of use. Background Technology

[0002] Currently, with the increasing depth of anti-seepage wall construction, ultra-deep hole casting has become one of the key technologies in underwater concrete construction. During ultra-deep underwater casting, due to the large length of the tremie pipe, there are empty sections exceeding 100 meters within the pipe. The concrete's velocity increases dramatically during descent, and the pressure difference between the mud and concrete creates voids, resulting in a significant pressure difference with the mud outside the hole, leading to air resistance. Different particle sizes and compositions experience uneven resistance; the larger the area of ​​the projected shadow, the more air needs to be displaced, and the greater the resistance. This air resistance effect causes different particle sizes in the concrete to be affected by varying resistance, resulting in aggregate sorting and separation of mortar from aggregate, thus reducing the concrete's fluidity and uniformity. With increasing velocity, friction increases significantly, further exacerbating the concrete segregation problem and even causing tremie pipe blockage, seriously affecting construction progress and wall quality, and posing potential safety risks.

[0003] While some existing technologies employ rigid mixing devices for ultra-deep underwater casting pipes in an attempt to address the flowability issue of concrete, their effectiveness is limited, and rigid structures are prone to wear and blockage during prolonged use. Traditional mixing devices not only struggle to cope with complex construction environments but also increase construction difficulty and costs.

[0004] Therefore, there is an urgent need for a new type of concrete pouring conduit that can effectively solve problems such as air resistance, aggregate sorting, segregation, and pipe blockage, while reducing construction costs and improving construction safety. Summary of the Invention

[0005] This invention provides an ultra-deep underwater concrete pouring conduit with a flexible mixing device and its usage method to solve the technical problems existing in the prior art.

[0006] The technical solution adopted by this invention to solve the technical problems existing in the prior art is as follows:

[0007] An ultra-deep-sea concrete pouring duct with a flexible mixing device is disclosed. The duct comprises multiple sequentially connected pipe sections. Detachable flexible baffles are provided at the bottom of the tail section and at the connection between adjacent pipe sections. The baffles exert lateral and upward forces on the concrete liquid falling from the duct, causing part of the concrete liquid to deflect to the side and upward before falling as it passes through the baffles. The resultant force of the lateral forces exerted on the concrete liquid by two adjacent baffles rotates by an angle α relative to the axis of the duct.

[0008] Furthermore, the baffle includes interconnected baffle interfaces and flexible arc-shaped plates; the baffle interfaces are connected to the upper or lower port of the pipe section.

[0009] Furthermore, among the adjacent curved plates, the projection of one curved plate on the horizontal plane is rotated by an angle α relative to the axis of the guide tube and then coincides with the projection of the other curved plate on the horizontal plane. α can be 90°, 120°, or 180°.

[0010] Furthermore, the baffle interface is drum-shaped, and the arc-shaped plate is shaped like a spiral blade.

[0011] Furthermore, the arc-shaped plate is a half-conical surface.

[0012] Furthermore, the curved plate is a quarter-sphere in shape.

[0013] Furthermore, the lower end of the pipe section is provided with an internal thread or a groove, and the baffle interface is provided with an external thread that mates with the internal thread of the lower end of the pipe section or with a snap fastener that engages with the groove.

[0014] Furthermore, the curved plate is made of rubber.

[0015] Furthermore, the curved plate is fixed to the baffle interface by snap-fit ​​or crimping.

[0016] The present invention also provides a method for using the above-mentioned ultra-deep underwater concrete pouring duct with flexible mixing device, the method comprising the following steps: Based on the pouring depth and concrete mix ratio, determine the number of flexible baffles and pipe sections, as well as the arrangement angle of the flexible baffles; According to the mix proportion, install an appropriate number of baffles in the sequentially connected pipe sections; adjust the angle at which two adjacent baffles apply lateral force to the concrete liquid so that the resultant force of the two adjacent baffles on the concrete liquid is rotated 90°, 120° or 180° relative to the axis of the guide pipe. Construction personnel monitor the separation of mortar and aggregate and the falling speed of concrete in real time, and adjust the ratio of flexible baffles and pipe sections based on the monitoring information, as well as the angle at which the two baffles apply lateral force to the concrete liquid; to ensure the uniformity and fluidity of mortar and aggregate. When the air resistance effect is large, a speed suppression device is installed when the concrete liquid flow rate reaches the set value to further reduce the air resistance effect.

[0017] The advantages and positive effects of this invention are: Effectively solves air resistance and sorting problems: By designing a flexible arc plate, the air resistance effect is reduced, solving the problems of aggregate sorting and mortar-aggregate separation.

[0018] Improving concrete uniformity: Flexible mixing devices can effectively improve the uniformity and fluidity of concrete, preventing segregation.

[0019] Simple structure: The conduit design is simple, and the installation method of the arc plate is easy to process, replace and reuse, which reduces construction costs.

[0020] Highly adaptable: It is suitable for ultra-deep underwater concrete pouring pipes of different specifications, and the installation position and quantity of the arc plates can be adjusted according to actual needs.

[0021] Construction costs are reduced and construction safety is improved. The invention features a simple design, and the installation and replacement of the flexible arc-shaped plate are very convenient, effectively reducing construction costs. Furthermore, because the device effectively prevents pipe blockage, it ensures the continuity of construction and improves safety during the construction process.

[0022] Wide range of applications: The ultra-deep underwater concrete pouring duct of this invention is applicable to ducts of different specifications, and the installation location and quantity can be selected according to construction needs to achieve multi-point mixing effect, which has broad applicability and promotion prospects.

[0023] This invention, through its innovative flexible mixing device design, not only solves many problems in the existing technology, but also improves the construction efficiency and quality in the ultra-deep underwater concrete pouring process, demonstrating significant technical advantages and application value. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connection structure of multiple pipe sections and baffles in an ultra-deep underwater concrete pouring conduit with a flexible mixing device according to the present invention.

[0025] Figure 2 This is a schematic diagram of the connection structure between a pipe section and the first type of baffle according to the present invention.

[0026] Figure 3 This is a schematic diagram of the connection structure between a pipe section and a second type of baffle according to the present invention.

[0027] Figure 4 This is a schematic diagram of a speed suppression section added to an ultra-deep underwater concrete pouring duct with a flexible mixing device according to the present invention.

[0028] Figure 5 This is a schematic diagram illustrating the working principle of an ultra-deep underwater concrete pouring conduit with a flexible mixing device according to the present invention.

[0029] Figure 6 This is a flowchart illustrating the usage method of an ultra-deep underwater concrete pouring conduit with a flexible mixing device according to the present invention.

[0030] In the diagram: 1. Upper end of intermediate pipe section; 2. Intermediate pipe section; 3. Fixing ring; 4. Tail pipe section; 5. Bottom end of tail pipe section; 6. Baffle interface; 7. Quarter-spherical arc plate; 8. Helical blade-shaped arc plate; 9. Velocity suppression section. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] In the description of this invention, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; or an electrical connection or signal transmission. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0033] Please see Figures 1 to 6 An ultra-deep-sea concrete pouring duct with a flexible mixing device is disclosed. The duct comprises multiple sequentially connected pipe sections. Detachable flexible baffles are provided at the bottom end 5 of the tail section and at the connection of adjacent pipe sections. The baffles apply lateral and upward forces to the concrete liquid falling from the duct, causing part of the concrete liquid to deflect to the side and upward before falling as it passes through the baffles. The resultant force of the lateral forces exerted on the concrete liquid by two adjacent baffles is rotated by an angle α relative to the axis of the duct.

[0034] Preferably, the baffle may include a baffle interface 6 and a flexible arc-shaped plate that are interconnected; the baffle interface 6 may be connected to the upper or lower port of the pipe section. For example, the baffle interface 6 may be installed at the upper port 1 of the intermediate pipe section or the lower port of the intermediate pipe section 2.

[0035] The flexible arc-shaped plate can be located inside the baffle interface 6 or at the lower end of the baffle interface 6.

[0036] Preferably, among the adjacent arc-shaped plates, the projection of one arc-shaped plate on the horizontal plane can coincide with the projection of the other arc-shaped plate on the horizontal plane after rotating relative to the axis of the conduit by an angle α. α can be 90°, 120°, or 180°.

[0037] Preferably, the baffle interface 6 can be drum-shaped, and the arc-shaped plate can be a spiral blade.

[0038] Please refer to Figure 2 The arc plate in it adopts a spiral blade-shaped arc plate 8.

[0039] Preferably, the arc-shaped plate can be a half-conical surface.

[0040] Preferably, the arc-shaped plate can be a quarter-sphere.

[0041] Please refer to Figure 3 and Figure 1 The curved plate in this case is a quarter-spherical curved plate 7.

[0042] Preferably, the lower end of the pipe section may be provided with an internal thread or a groove, and the baffle interface 6 may be provided with an external thread that mates with the internal thread of the lower end of the pipe section or with a snap fastener that engages with the groove.

[0043] The upper port 1 of the intermediate pipe section is provided with an external thread, and the lower port of the lower port of the intermediate pipe section 2 is provided with a fixing ring 3. The fixing ring 3 may be provided with an internal thread. The baffle interface 6 can be placed between the upper port 1 of the intermediate pipe section and the internal and external threads of the fixing ring 3, and the baffle interface 6 can be fixed by crimping.

[0044] Preferably, the material of the curved plate can be a flexible wear-resistant material such as rubber, plastic, resin, or composite materials of organic and metal.

[0045] Preferably, the arc-shaped plate can be fixed to the baffle interface 6 by snap-fit ​​or crimping.

[0046] The arc-shaped plate made of flexible wear-resistant material can be regarded as an irregularly shaped flexible wear-resistant pad, and the arc-shaped plate made of rubber can be regarded as an irregularly shaped flexible rubber pad. The arc-shaped plates are snapped or pressed between the pipe sections. The pipe sections can be connected by flanges or threads.

[0047] The present invention also provides a method for using the above-mentioned ultra-deep underwater concrete pouring duct with flexible mixing device, the method comprising the following steps: Based on the pouring depth and concrete mix ratio, determine the number of flexible baffles and pipe sections, as well as the arrangement angle of the flexible baffles; According to the mix proportion, install an appropriate number of baffles in the sequentially connected pipe sections; adjust the angle at which two adjacent baffles apply lateral force to the concrete liquid so that the resultant force of the two adjacent baffles on the concrete liquid is rotated 90°, 120° or 180° relative to the axis of the guide pipe. Construction personnel monitor the separation of mortar and aggregate and the falling speed of concrete in real time, and adjust the ratio of flexible baffles and pipe sections based on the monitoring information, as well as the angle at which the two baffles apply lateral force to the concrete liquid; to ensure the uniformity and fluidity of mortar and aggregate. When the air resistance effect is large, a speed suppression section 9 is installed when the concrete liquid flow rate reaches the set value to further reduce the air resistance effect.

[0048] The structure, workflow, and working principle of the present invention are further illustrated below with reference to a preferred embodiment: An ultra-deepwater concrete pouring duct with a flexible mixing device is disclosed. The duct comprises multiple sequentially connected pipe sections. Removable flexible baffles are provided at the bottom end 5 of the tail section and at the connection points of adjacent pipe sections. The baffles exert lateral and upward forces on the concrete liquid falling from the duct, causing a portion of the concrete liquid to deflect laterally and upward before falling as it passes through the baffles. The resultant force of the lateral forces exerted on the concrete liquid by two adjacent baffles rotates relative to the duct axis by an angle α, where α = 180°.

[0049] The flow baffle includes interconnected baffle interfaces 6 and flexible arc-shaped plates; the flexible arc-shaped plates are made of wear-resistant flexible rubber. The tail section 4 is a duct short section.

[0050] Wear-resistant flexible arc-shaped plates are installed at the ends of the duct sections and at the connections between adjacent sections. These arc-shaped plates have an irregular shape, with adjacent upper and lower baffles arranged at a 180° offset. When concrete falls from the duct, it encounters the irregular arc-shaped plates, causing lateral deflection and rebound, thus achieving passive mixing twice or more. This breaks down aggregate sorting, reduces the decrease in concrete fluidity, and effectively improves the uniformity of the concrete.

[0051] Installation location and shape of the baffle: A non-circular flexible arc plate is installed at the end of the short section or between sections inside the guide tube. Through geometric guidance and the self-sagding deformation of the arc plate, the disturbance and rebound of the concrete fluid in the guide tube are increased.

[0052] By selecting appropriate installation locations and using the irregular design of the curved plates, a multi-point mixing effect can be achieved. Curved plates can be installed at 2 to 3 guide tube joint locations to achieve the best mixing effect.

[0053] The baffles are made of wear-resistant rubber or high-strength elastomer materials, which have strong wear resistance and elasticity, ensuring stable performance during long-term construction.

[0054] The connection of the conduit uses threaded sleeves or flanges, and the baffle can be snapped or pressed onto the inner wall of the conduit, which is convenient for processing, replacement and reuse.

[0055] Figure 1The basic structure of the ultra-deep underwater concrete pouring conduit with flexible mixing device of the present invention is shown, which illustrates multiple connecting pipe sections, each with an irregularly shaped, wear-resistant, flexible arc-shaped plate at its end or at the connection between adjacent pipe sections. The flexible arc-shaped plate adopts an irregular shape and is arranged in a 180° staggered manner, which can generate lateral deflection and rebound during the concrete falling process.

[0056] Figure 2 and Figure 3 The installation location of the flexible curved plate is demonstrated. Curved plates can be installed at the ends of each pipe section or at the joints between sections of the conduit. The flexible curved plate can be installed at the pipe section joints using threaded sleeves or flanges. The curved plate is installed on the inner wall of the conduit using threaded sleeves or flanges, facilitating processing, replacement, and reuse. Curved plates can be installed at the end of each conduit section or at the joints between sections. The installation of the curved plate is simple, and it can be replaced and reused as needed for construction. During installation, the curved plate can be fixed to the inner wall of the conduit using snap-fit ​​or press-fit methods, ensuring its stable position throughout the pouring process.

[0057] Figure 4 This demonstrates the working principle of the flexible mixing device in actual construction. When concrete falls through the duct, it encounters the irregular structure of the curved plates, causing the concrete fluid to deflect and rebound, creating disturbance and achieving secondary and multiple mixing processes. This effectively avoids aggregate segregation, reduces mortar-aggregate separation, and significantly improves the uniformity and fluidity of the concrete. Multiple curved plates, through their design and arrangement, can repeatedly disturb and mix the falling concrete, effectively preventing aggregate segregation, silting, and pipe blockage. During the falling process, the concrete is affected by the curved plates, resulting in secondary or even multiple passive mixing, breaking down aggregate segregation. This process effectively avoids quality problems caused by concrete segregation, ensuring the quality of the pouring.

[0058] Figure 5 The demonstration showcased the installation of a velocity suppression section 9 within an ultra-deep-water concrete pouring duct. When the concrete's falling speed reaches a certain level, the velocity suppression section 9 can reduce the falling speed, further minimizing air resistance and friction, and preventing aggregate separation and duct blockage risks.

[0059] To achieve multi-point mixing, this invention provides a design method for an ultra-deep underwater concrete pouring duct with a flexible mixing device: Selection of duct type: Select duct specifications suitable for ultra-deep underwater concrete pouring, ensuring sufficient strength and durability. The duct consists of multiple connecting sections, ensuring a firm and reliable connection between each section. Irregularly shaped, wear-resistant, flexible arc-shaped plates can be installed at the ends of each section or at the joints of adjacent sections.

[0060] Design of flexible curved panels: The materials selected for flexible curved panels are wear-resistant rubber or high-strength elastomers to ensure their stability and wear resistance during long-term construction.

[0061] The irregular structural design of the curved slab must ensure effective lateral deflection and rebound of the high-speed falling concrete. Its self-sagating deformation capability can effectively disturb the concrete fluid, preventing aggregate separation and mortar-aggregate separation.

[0062] The design of the arc plate must match the inner diameter of the conduit to ensure that the fluid path inside the conduit is unobstructed after installation.

[0063] Installation method for flexible curved plates: The flexible arc plate is installed on the inner wall end of the conduit using a threaded sleeve or flange, which is secure and facilitates later replacement and maintenance.

[0064] Curved plates can be installed at the ends of each pipe section or at the joints between sections, depending on specific construction needs, to create a multi-point mixing effect. Depending on actual requirements, curved plates can be installed at 2-3 pipe sections to ensure that the concrete passes through multiple mixing points during its descent, achieving the best mixing effect.

[0065] This invention can also incorporate a velocity suppression section 9 in the conduit design. When the concrete falling speed reaches a certain level, the velocity suppression section 9 can effectively slow down the concrete's fall speed, reducing air resistance and friction, thereby preventing concrete separation, segregation, and pipe blockage. The velocity suppression section 9 is designed to be adjustable, allowing for flexible configuration based on actual construction conditions to adapt to different pouring depths.

[0066] A method for using the above-mentioned ultra-deep underwater concrete pouring duct with a flexible mixing device, the method comprising the following steps: Based on the pouring depth and concrete mix ratio, determine the number of flexible baffles and pipe sections, as well as the arrangement angle of the flexible baffles; According to the mix proportion, install an appropriate number of baffles in the sequentially connected pipe sections; adjust the angle at which two adjacent baffles apply lateral force to the concrete liquid so that the resultant force of the two adjacent baffles on the concrete liquid is rotated 90°, 120° or 180° relative to the axis of the guide pipe. Construction personnel monitor the separation of mortar and aggregate and the falling speed of concrete in real time, and adjust the ratio of flexible baffles and pipe sections based on the monitoring information, as well as the angle at which the two baffles apply lateral force to the concrete liquid; to ensure the uniformity and fluidity of mortar and aggregate. When the air resistance effect is large, a speed suppression section 9 is installed when the concrete liquid flow rate reaches the set value to further reduce the air resistance effect.

[0067] Arrangement method of velocity suppression section 9: In the design of the duct, a velocity suppression section 9 is installed in a timely manner according to the construction depth and the concrete falling speed. When the concrete falling speed is too fast, the velocity suppression section 9 can effectively slow down the falling speed of the concrete, reduce the air resistance effect, thereby reducing friction and avoiding concrete separation, segregation and blockage.

[0068] The arrangement of the velocity suppression section 9 should be adjusted according to the length and depth of the conduit, and it is usually set at a specific position on the conduit to ensure that it can work properly during the concrete pouring process.

[0069] The method specifically includes the following steps: Step 1: Assembly and debugging of the conduit and flexible mixing device: Select appropriate specifications for ultra-deep underwater concrete pouring pipes and flexible mixing devices based on construction requirements.

[0070] At the construction site, the conduit is first assembled according to the design requirements, ensuring a stable connection of each connecting section. The installation locations of the connecting sections and flexible arc plates are then inspected to ensure that the irregularly shaped flexible arc plates are correctly installed at the ends of each section or at the joints between sections. The flexible arc plates are then fixed to the inner wall of the conduit using threaded sleeves or flanges to ensure stability and facilitate future replacement.

[0071] After assembly, the conduit system is tested and checked for blockages, leaks, or other problems to ensure that the flexible mixing device can work properly.

[0072] Step 2, Preparation for pouring: The concrete is ready and connected to other construction equipment.

[0073] The conduit was installed in place, and the concrete pouring path was inspected to ensure there were no leaks or structural problems.

[0074] Depending on the construction environment, it may be necessary to install a speed suppression section 9 to slow down the falling speed of the concrete.

[0075] Step 3, Pouring process: The concrete begins to fall from the top of the duct. As the concrete passes through the duct, it encounters the irregular structure of the flexible curved plate, causing it to deflect and rebound.

[0076] The concrete fluid is disturbed within the conduit, undergoing secondary or multiple mixing processes as it passes through the flexible curved plate. This process disrupts aggregate sorting, ensuring the uniformity and flowability of the mortar and aggregate.

[0077] As the concrete continues to fall, the structure of the curved plate will continuously disturb the fluid, ensuring the uniform distribution of the concrete and preventing segregation and pipe blockage.

[0078] Monitoring and adjustments during the pouring process: During the actual concrete pouring process, the flowability, uniformity, and pressure changes within the tremie pipe are monitored in real time. If poor concrete flowability or segregation is detected, the installation position of the curved plates can be adjusted or the number of curved plates can be increased or decreased as needed to ensure the uniformity of the concrete.

[0079] Construction workers monitor the flowability and uniformity of the concrete in real time to ensure there is no aggregate separation or mortar-aggregate separation. If a speed inhibition section 9 is installed, it will automatically activate when the concrete falls at a certain speed, reducing the falling speed and thus minimizing air resistance and further ensuring the quality of the concrete.

[0080] Step 4: Inspection and maintenance after construction: After the concrete pouring is completed, inspect the wear of the guide pipes and flexible curved plates. If the curved plates are found to be severely worn, they should be replaced or repaired in a timely manner to ensure their continued function in subsequent construction.

[0081] The conduits and curved plates can be regularly maintained and cleaned to extend their service life and ensure proper operation in the next construction phase.

[0082] Working principle of the invention: The concrete pouring conduit of this invention consists of multiple connecting pipe sections. Each pipe section has a wear-resistant flexible arc-shaped plate with an irregular structure at its end or at the connection between adjacent pipe sections. The upper and lower ends of the flexible arc-shaped plate are staggered by 180° and fixed to the inner wall of the conduit, forming a flexible mixing device. This device, through geometric guidance and self-diving deformation, causes disturbance and rebound of the concrete during its fall, forming two or more passive mixing processes.

[0083] Effectively solves the air resistance effect: By setting a flexible arc plate inside the guide tube, the concrete deflects and rebounds laterally when it encounters the arc plate during its descent, reducing the impact of the air resistance effect and thus avoiding the phenomenon of concrete sorting and decreased fluidity caused by air resistance.

[0084] Preventing Aggregate Segregation and Fragmentation: During the descent of concrete through the tremie pipe, the concrete fluid encounters the flexible, curved plate. The irregular structure of the plate causes lateral deflection and rebound, altering the flow direction and velocity of the concrete and promoting secondary or multiple mixing processes within the tremie pipe. This process effectively breaks down aggregate segregation, reduces the separation of mortar and aggregate, and improves the fluidity and uniformity of the concrete, thus avoiding quality problems caused by segregation and aggregate separation. The irregularly shaped, flexible, curved plate, through repeated disturbance and rebound, allows the concrete to undergo secondary or multiple mixing processes within the tremie pipe. This process breaks down aggregate segregation and the separation of mortar and aggregate, ensuring the uniformity and fluidity of the concrete, thereby effectively preventing concrete segregation and a decline in wall quality.

[0085] Reducing internal friction in the conduit and mitigating the risk of blockage: Due to the design of the arc-shaped plate, the concrete inside the conduit is disturbed, reducing the accumulation of friction and thus effectively lowering the risk of blockage. Even if the arc-shaped plate wears down or falls off, it will not form a rigid obstacle, thereby ensuring the continuity and safety of the construction process.

[0086] Improved concrete quality: The fluidity and uniformity of concrete have been significantly improved, avoiding quality problems caused by uneven concrete, especially preventing phenomena such as sorting and segregation, thus ensuring the quality of concrete in ultra-deep underwater construction.

[0087] By adjusting the number and position of the curved plates, the mixing effect can be flexibly adjusted according to different construction environments to ensure the quality of concrete pouring.

[0088] Implementation results: In practical applications, installing the flexible mixing device within the ultra-deep underwater concrete pouring duct significantly reduces air resistance, improves concrete fluidity and uniformity, and minimizes aggregate sorting and segregation. Even if the curved plate wears or detaches during construction, it will not form a rigid obstruction, preventing pipe blockage and ensuring construction continuity and safety.

[0089] The aforementioned flexible baffle, casting conduit section, baffle interface 6, flexible arc plate, fixing ring 3, quarter-spherical arc plate 7, spiral blade-shaped arc plate 8, half-conical arc plate, velocity suppression section 9, etc. can all adopt applicable structures and components of existing technologies, or adopt structures, components and materials of existing technologies and construct them using conventional technical means.

[0090] The embodiments described above are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The patent scope of the present invention should not be limited by these embodiments. That is, all equivalent changes or modifications made in accordance with the spirit disclosed in the present invention still fall within the patent scope of the present invention.

Claims

1. A super-deep underwater concrete pouring duct with a flexible mixing device, characterized in that, The pouring guide pipe consists of multiple pipe sections connected in sequence. Detachable flexible baffles are provided at the bottom of the last pipe section and at the connection between adjacent pipe sections. The baffles exert lateral and upward forces on the concrete liquid falling from the guide pipe, causing part of the concrete liquid to deflect to the side and upward before falling when it flows through the baffles. The resultant force of the lateral forces exerted on the concrete liquid by the two adjacent baffles is rotated by an angle α relative to the axis of the guide pipe.

2. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 1, characterized in that, The baffle includes interconnected baffle interfaces and flexible arc-shaped plates; the baffle interfaces are connected to the upper or lower port of the pipe section.

3. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 2, characterized in that, The upper and lower adjacent arc plates, the projection of one arc plate on the horizontal plane is rotated by an angle α relative to the axis of the guide tube and coincides with the projection of the other arc plate on the horizontal plane. α is 90°, 120°, 180°.

4. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 2, characterized in that, The arc-shaped plate is in the shape of a helical blade.

5. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 2, characterized in that, The curved plate is shaped like a half-cone.

6. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 2, characterized in that, The curved plate is a quarter-sphere in shape.

7. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 2, characterized in that, The lower end of the pipe section is provided with an internal thread or a groove, and the baffle interface is provided with an external thread that mates with the internal thread of the lower end of the pipe section or with a snap fastener that engages with the groove.

8. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 2, characterized in that, The curved plate is made of rubber.

9. The ultra-deep underwater concrete pouring duct with flexible mixing device according to claim 8, characterized in that, The curved plate is fixed to the baffle interface by snap-fit ​​or crimping.

10. A method of using an ultra-deep underwater concrete pouring duct with a flexible mixing device as described in any one of claims 1 to 9, characterized in that, This method includes the following steps: Based on the pouring depth and concrete mix ratio, determine the number of flexible baffles and pipe sections, as well as the arrangement angle of the flexible baffles; According to the mix proportion, install an appropriate number of baffles in the sequentially connected pipe sections; adjust the angle at which two adjacent baffles apply lateral force to the concrete liquid so that the resultant force of the two adjacent baffles on the concrete liquid is rotated 90°, 120° or 180° relative to the axis of the guide pipe. Construction personnel monitor the separation of mortar and aggregate and the falling speed of concrete in real time, and adjust the ratio of flexible baffles and pipe sections based on the monitoring information, as well as the angle at which the two baffles apply lateral force to the concrete liquid; to ensure the uniformity and fluidity of mortar and aggregate. When the air resistance effect is large, a speed suppression device is installed when the concrete liquid flow rate reaches the set value to further reduce the air resistance effect.

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