A concrete synchronous pouring and vibrating integrated device for immersed tube construction

Abstract

The application relates to the technical field of building construction equipment, and particularly discloses a concrete synchronous pouring and vibrating integrated device for immersed tube construction, which comprises a cylinder, a lifting device, a longitudinal guide rail, a vibrating rod, a driving mechanism and a terminal; the lifting device is used for lifting the cylinder, a string cylinder is arranged in the cylinder, and the string cylinder is connected with a connecting pipe; the lifting device is arranged on the longitudinal guide rail and can slide along the longitudinal guide rail; the bottom of the string cylinder penetrates out of the cylinder, and the outer wall of the string cylinder is provided with an infrared sensor; the driving mechanism is used for driving the vibrating rod to swing left and right; the infrared sensor, the vibrating rod and the driving mechanism are electrically connected with the terminal; the concrete synchronous pouring and vibrating integrated device for immersed tube construction is suitable for the integrated construction device of a partition wall, a side wall and a haunch area of a bottom plate in an immersed tube structure, so that the pouring quality is improved, the operation safety is ensured, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, specifically to an integrated device for synchronous concrete pouring and vibration for immersed tube construction. Background Technology

[0002] In actual construction, the top slab, central partition wall, side walls, and their corresponding haunches in the bottom slab are generally poured using a concrete pump, while the middle section of the bottom slab is poured using a concrete placing boom. Due to the significant height of the central partition wall and side walls, they often need to be poured as a whole, simultaneously with the haunches, resulting in a single pour height far exceeding 2 meters. To prevent segregation of the concrete under high drop, tremie pipes are typically used for assisted pouring. However, the widely used cylindrical tremie pipes currently available have limited anti-segregation effects, lack adjustability and stability, and cannot achieve automatic lifting and precise positioning. They still require manual assistance for segmental lifting, leading to high labor costs and low work efficiency.

[0003] Meanwhile, concrete vibration in the haunch areas of the partition walls, side walls, and their base slabs is still mainly done manually, typically by inserting the vibrator through vibratory inlets set in the formwork. However, the pouring and vibration of concrete in the walls above the haunch areas still requires manual entry into confined, poorly ventilated work areas, resulting in high labor intensity and significant safety hazards, especially at night or in high temperatures, which can easily cause discomfort or even work-related accidents. Furthermore, manual vibration in confined spaces makes it difficult to accurately control the insertion depth and time of the vibrator, easily leading to quality defects such as under-vibration, insufficient vibration, or over-vibration.

[0004] Existing tremie pipe structures struggle to achieve precise control over the height of layered pouring and to coordinate with a reasonable vibration rhythm, failing to meet the comprehensive requirements of high-quality, high-efficiency, and safe construction. Therefore, there is an urgent need to develop an integrated construction device that combines concrete auxiliary pouring and vibration, suitable for partition walls, side walls, and the haunch area of ​​the base slab in immersed tube structures, to improve pouring quality, ensure operational safety, and significantly increase construction efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated device for synchronous concrete pouring and vibration in immersed tunnel construction. This device is suitable for the integrated construction of partition walls, side walls, and the haunch area of ​​the bottom plate in immersed tunnel structures, so as to improve the pouring quality, ensure operational safety, and significantly improve construction efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An integrated device for synchronous concrete pouring and vibration for immersed tube construction includes: a cylinder, a lifting device, a longitudinal guide rail, a vibrator, a drive mechanism, and a terminal.

[0007] The lifting device is used to lift the cylinder, and a string tube is provided inside the cylinder, which is connected to a connecting pipe.

[0008] The lifting device is disposed on the longitudinal guide rail, and the lifting device is configured to slide along the longitudinal guide rail.

[0009] The bottom of the string tube extends out of the cylinder body, and an infrared sensor is installed on the outer wall of the string tube.

[0010] The drive mechanism is used to drive the vibrating rod to swing left and right.

[0011] The infrared sensor, vibrating rod, and driving mechanism are all electrically connected to the terminal.

[0012] In at least one embodiment of the present disclosure, a synchronous concrete pouring and vibration integrated device for immersed tube construction is provided, wherein the lifting device and / or the longitudinal guide rail are provided with a locking structure for locking the lifting device.

[0013] In at least one embodiment of the present disclosure, an integrated device for synchronous concrete pouring and vibration for immersed tube construction is provided, wherein a plurality of drag-reducing plates with vertical inclination angles are provided inside the cistern.

[0014] The multiple drag-reducing plates are arranged alternately in the vertical direction.

[0015] In at least one embodiment of the present disclosure, the integrated concrete pouring and vibration device for immersed tube construction is provided, wherein the cistern is rectangular.

[0016] In at least one embodiment of the present disclosure, in the integrated device for synchronous concrete pouring and vibration for immersed tube construction, the bottom end of the infrared sensor is aligned with the bottom edge of the cylinder.

[0017] In at least one embodiment of the present disclosure, an integrated device for synchronous concrete pouring and vibration for immersed tube construction is provided, wherein the driving mechanism includes a vibrator fixing bracket, a universal rotating ball fixing device, a vertical fixing bracket, a cylindrical limiter, a circular fixing end, a connecting rod, a telescopic fixing device, a telescopic fixing device control end, and a control end connecting line.

[0018] The vibrating rod is fixedly connected to the vibrating rod fixing bracket.

[0019] The vibratory rod fixing bracket is rotatably connected to the vertical fixing bracket via a universal rotating ball fixing device.

[0020] The fixed bracket is connected to the connecting rod via the circular fixed end, and the connecting rod is connected to the telescopic fixer.

[0021] In at least one embodiment of the present disclosure, an integrated device for synchronous concrete pouring and vibration for immersed tube construction is provided, wherein a retainer is provided on the outer wall of the tremie pipe, and the infrared sensor is configured to be fixedly connected to the tremie pipe through the retainer.

[0022] In at least one embodiment of the present disclosure, an integrated device for synchronous concrete pouring and vibration for immersed tube construction is provided, wherein four longitudinal guide rails are provided.

[0023] The lifting device has two longitudinal guide rails arranged on each side, and the two longitudinal guide rails on the same side are arranged symmetrically.

[0024] The beneficial effects of this invention are: an integrated construction device applicable to the partition wall, side wall and bottom plate haunch area in immersed tube structure, which improves the pouring quality, ensures operation safety and greatly improves construction efficiency.

[0025] The device is equipped with a lifting device and longitudinal guide rails arranged along the pouring direction of the pipe section to achieve lifting and longitudinal movement control, which gives it good overall flexibility. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of an integrated concrete synchronous pouring and vibration device for immersed tube construction according to the present invention.

[0028] Figure 2 This is a top view of a rectangular spool.

[0029] Figure 3 This is a schematic diagram showing the distribution of the cylinder and the lifting device.

[0030] Figure 4 Schematic diagram of the connection between the vibrator and the drive mechanism

[0031] Figure 5 This is a schematic diagram showing the connection between the lifting device and the longitudinal guide rail.

[0032] In the picture: 1. Stringing drum; 2. Rotary motor; 3. Lifting device; 4. Power control line for vibrator; 5. Control end connection line; 6. Drag reduction plate; 7. Telescopic fixing device; 8. Connecting round rod; 9. Vibrator fixing bracket; 10. Universal rotating ball fixing device; 11. Vibrator; 12. Telescopic fixing device control end; 13. Infrared sensor; 14. Infrared sensor fixing device; 15. Connecting pipe; 16. Cylinder body; 17. Vertical fixing bracket; 18. Cylindrical limiter; 19. Fixing bolt; 20. Circular fixing end; 21. Longitudinal guide rail; 22. Terminal. Detailed Implementation

[0033] The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments.

[0034] Example like Figures 1 to 5 As shown, this embodiment provides an integrated device for synchronous concrete pouring and vibration for immersed tunnel construction, including: a cylinder 16, a lifting device 3, a longitudinal guide rail 21, a vibrator 11, a drive mechanism, an infrared sensor 13, and a terminal 22. The entire device has a cylindrical body 16 with a wall thickness of 2cm, ensuring both overall structural rigidity and effective protection of internal components. The outer wall of the cylinder is provided with a threaded structure of specific depth and spacing, which, combined with the lifting device 3 and the longitudinal guide rail 21 arranged along the pouring direction of the tunnel section, enables lifting and longitudinal movement control of the device.

[0035] Specifically, cylinder 16 is made of PVC cylindrical tube.

[0036] The function and control principle of the lifting device will be further disclosed below.

[0037] The lifting device 3 includes a motor 2 and a worm gear transmission mechanism (not shown). The outer wall of the cylinder 16 is provided with external threads. The motor and the cylinder 16 are driven by the worm gear transmission mechanism and the external threads. The worm gear transmission mechanism and the external threads convert the rotational motion of the motor into the linear motion of the cylinder 16, thereby driving the cylinder 16 to rise and fall. This lifting process can be precisely controlled by controlling the motor 2, allowing for precise control of the vertical displacement of the cylinder 16.

[0038] The lifting device 3 can be locked to the longitudinal guide rail 21 via a locking structure. The locking structure includes fixing bolts 19 and screw holes (not shown). The screw holes are located on the longitudinal guide rail 21 and the lifting device 3, and the screw holes on the longitudinal guide rail 21 are evenly distributed. When the fixing bolts 19 are not screwed into the screw holes on the longitudinal guide rail 21, the lifting device can slide freely along the longitudinal guide rail, making it easy to adjust to the target pouring position. When the fixing bolts 19 are screwed into the screw holes on the longitudinal guide rail 21, the lifting device 3 is firmly locked and cannot move, ensuring accurate and reliable positioning during construction.

[0039] The concrete pouring and internal structural design will be further disclosed below.

[0040] Concrete is injected into the device via a boom pump and connecting pipe 15, flowing into the rectangular tremie pipe 1 inside. The tremie pipe is embedded within a PVC cylindrical tube, and its length and width dimensions are designed based on the thickness of the partition or sidewall in the actual immersed tunnel structure, the diameter of the vibrator 11, and its rotation radius. To reduce the free-fall velocity of the concrete and maintain its original mix uniformity, several drag-reducing plates 6 with a certain vertical inclination are staggered along the vertical direction inside the tremie pipe 1. Furthermore, to prevent direct impact of the concrete on the vibrator and infrared sensor, the bottom of the rectangular tremie pipe 1 extends beyond the PVC cylindrical tube.

[0041] The lifting distance of the PVC cylindrical tube needs to be precisely controlled in conjunction with the ranging feedback of the infrared sensor 13. By setting the vertical height of the upward lifting auxiliary pouring system, the thickness of each concrete pouring layer and the insertion distance and time of the vibrating device can be further controlled.

[0042] The ranging principle of infrared sensors is as follows: In concrete construction, controlling the pouring thickness is crucial, and infrared ranging technology provides an efficient and accurate solution for this process. By emitting infrared rays and receiving reflected signals, distance is calculated using time or phase differences, achieving millimeter-level accuracy. In infrared ranging technology, calculating the concrete pouring thickness requires combining geometric positioning principles and reference plane calibration. Infrared sensors 13 are vertically arranged along one of the short sides of the embedded rectangular pouring duct, with one sensor symmetrically arranged on each of the two short sides. Calculation and analysis are performed using one side as an example: Assume the reference plane of the infrared sensor is initially designed at the bottom of the central partition wall / side wall. , set initial =0, the specific calculation process for layered pouring is as follows: Step 1: Initial setup (n=1).

[0043] Assuming the concrete is poured in layers with layer numbers n (n=1,2,3…), and the reference plane of the first layer is… ,and Calculate the initial vertical height of the infrared device. ,in This represents the vertical height of the i-th sensor before the construction of the n-th layer (i=1,2…6).

[0044] ; This represents the height of the reference plane of the nth layer. This indicates the sensor's safe ranging margin (ensuring effective range measurement).

[0045] The infrared sensor is raised in sync with the concrete pouring chute, while ensuring that the vertical distance between the infrared sensor and the concrete surface is within the effective range.

[0046] ; Where, d min Indicates the minimum test distance of the redline ranging device; d max This indicates the maximum test distance of the redline distance measuring device;

[0047] Step 2: Calculate the pouring thickness for the nth layer.

[0048] Infrared sensors directly calculate the thickness of the nth layer of concrete based on vertical distance, using the following formula: ; - ; in, This represents the surface height after the nth layer is poured. d_distance represents the vertical distance from the infrared sensor to the surface of the concrete after the nth layer is poured.

[0049] Step 3: Update the next layer reference plane.

[0050] The reference plane for the (n+1)th layer is the height of the completed concrete surface of the current layer, according to the recursive formula: ; Step 4: Auxiliary pouring system lifting conditions.

[0051] When the sensor distance approaches its lower limit (to avoid exceeding the effective measurement range), the sensor needs to be raised. The setting conditions are as follows: ; Step 5: Calculate the updated height from the infrared sensor.

[0052] The sensor is raised above the new reference plane: ; Step 6: Infrared sensor height self-calibration.

[0053] It relies solely on the infrared sensor for ranging, recursively updating the reference plane based on the thickness of adjacent layers, requiring no external positioning equipment, and allowing for deviations in single-layer thickness. mm, if out of tolerance, correct the target thickness in the next layer. .

[0054] In application, infrared sensor 13 is mounted on the outer wall of the tremie cylinder 1 via infrared sensor holder 14, with its bottom end aligned with the bottom edge of the PVC cylindrical cylinder. This sensor is used to monitor the thickness of the concrete pouring layers in real time and transmit the monitoring data back to terminal 22. When the thickness is about to reach the set layer height (dynamically calculated by the terminal based on the actual pouring rate on site), terminal 22 automatically issues a command to stop the concrete pump delivery, thereby achieving automatic layered pouring control. At the same time, terminal 22 will synchronously start the vibrator 11 and control its insertion depth and vibration time to ensure concrete compaction and construction quality.

[0055] The following will disclose the method of controlling the pouring and vibration of the integrated concrete synchronous pouring and vibration device used in the haunch area for immersed tube construction.

[0056] In addition to the central partition wall and side walls, the concrete pouring and vibration of the haunch area also need to be considered. The pouring height of this area from the vibrator opening to the upper edge of the haunch plate is usually within the range of layer pouring thickness. Therefore, when working in the haunch area, terminal 22 only needs to reset the initial reference plane, taking the vibrator opening of the haunch plate as the starting point, defining its elevation as 0, and pouring a complete layer according to the standard layer height.

[0057] Inclination control of the drive mechanism and its working principle: The vibrator 11 is tilted and controlled by a drive mechanism to achieve precise tilting vibration. The drive mechanism includes: a vibrator fixing bracket 9, a universal rotating ball fixing device 10, a vertical fixing bracket 17, a cylindrical limiter 18, a circular fixing end 20, a connecting rod 8, a telescopic fixing device 7, a telescopic fixing device control end 12, and a control end connecting line 5. The vibrator 11 has a vibrator power control line 4.

[0058] The specific control structure is as follows: The vibrating rod 11 is supported by the vibrating rod fixing bracket 9, which is connected to the vertical fixing bracket 17 through the universal rotating ball fixing device 10, so as to achieve free rotation.

[0059] The fixed bracket 9 is connected to the connecting rod 8 via the circular fixed end 20, and the connecting rod 8 is further connected to the telescopic fixing device 7. This structure allows the vibrator to swing only left and right in the horizontal direction.

[0060] The arrangement of the circular fixed end 20 needs to be selected based on the actual dimensions of the PVC cylindrical tube and the tube 1 to ensure that the connecting rod 8 is within the maximum rotation range. max (i.e. l) max <R 圆柱 <l 矩形 / 2) The required inclination angle for the vibrator is achieved within the cylinder. Where Rcylinder is the radius of the PVC cylindrical tube, and l... 矩形 / 2 represents half the length of the long side of the tremie cylinder 1. The working principle of the drive mechanism is similar to a lever system: the circular fixed end 20 is the fulcrum, the connecting rod 8 is the power arm, and the vibratory rod fixing bracket 9 is the resistance arm. The length of the connecting rod 8 can be freely adjusted according to the fixed end 20, thereby increasing the length ratio of the power arm to the resistance arm, so that the connecting rod 8 can drive the vibratory rod fixing bracket 9 to produce a larger tilt angle within a small rotation angle range.

[0061] The tilt adjustment control mechanism of the drive mechanism will be disclosed below.

[0062] The specific adjustment of the vibratory rod's inclination angle is accomplished by the telescopic fixing control end 12, which is connected to the terminal 22 via the control end connection line 5. After the terminal issues a control command, the control end adjusts the telescopic fixing end 7 so that it inserts between two adjacent cylindrical limiters 18 in the vertical direction in a manner similar to a spring clip, thus completing the fixed positioning. In the design, the inclination angle changes by approximately 5° each time the vibratory rod is lifted past a limiter. Considering that the armhole angle is not a fixed value in actual engineering, the spacing of the limiters can also be adjusted as needed, thereby achieving personalized matching of inclination angle adjustment accuracy and construction adaptability.

[0063] Although embodiments of this application have been shown and described above, the scope of protection of this invention is not limited thereto. Any variations or substitutions that can be conceived without inventive effort should be covered within the scope of protection of this invention. Unless expressly stated otherwise, no element, action or instruction used herein should be construed as critical or necessary.

Claims

1. An integrated device for simultaneous concrete pouring and vibration in immersed tunnel construction, characterized in that, include: Cylinder, lifting device, longitudinal guide rail, vibrating rod, drive mechanism and terminal; The cylinder is equipped with a string tube, and the string tube is connected to a connecting pipe; The lifting device is disposed on the longitudinal guide rail and is configured to slide along the longitudinal guide rail. The lifting device is used to lift the cylinder. The bottom of the string tube extends out of the cylinder body, and an infrared sensor is provided on the outer wall of the string tube; The drive mechanism is used to drive the vibrating rod to swing left and right; The infrared sensor, vibrating rod, and driving mechanism are all electrically connected to the terminal. The lifting device and / or the longitudinal guide rail are provided with a locking structure for locking the lifting device; The drum is equipped with multiple drag-reducing plates with a vertical tilt angle; The multiple drag-reducing plates are arranged alternately in the vertical direction; The bottom end of the infrared sensor is aligned with the bottom edge of the cylinder. The driving mechanism includes a vibratory rod fixing bracket, a universal rotating ball fixing device, a vertical fixing bracket, a cylindrical limiter, a circular fixing end, a connecting rod, a telescopic fixing device, a telescopic fixing device control end, and a control end connecting line. The vibrating rod is fixedly connected to the vibrating rod fixing bracket; The vibratory rod fixing bracket is rotatably connected to the vertical fixing bracket via a universal rotating ball fixing device; The vibratory rod fixing bracket is connected to the connecting round rod through the circular fixing end, and the connecting round rod is connected to the telescopic fixing device.

2. The integrated concrete synchronous pouring and vibration device for immersed tube construction according to claim 1, characterized in that, The string tube is rectangular in shape.

3. The integrated concrete synchronous pouring and vibration device for immersed tube construction according to claim 1, characterized in that, The outer wall of the string tube is provided with a retainer, and the infrared sensor is configured to be fixedly connected to the string tube through the retainer.

4. The integrated concrete synchronous pouring and vibration device for immersed tube construction according to claim 1, characterized in that, Four longitudinal guide rails are provided; The lifting device has two longitudinal guide rails arranged on each side, and the two longitudinal guide rails on the same side are arranged symmetrically.

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