A sewage treatment plant tank wall construction method

Abstract

The application relates to a sewage treatment plant pool wall construction method, and belongs to the technical field of building construction, which comprises the following steps: S1, pool bottom construction: binding the first section of steel reinforcement framework on the outer periphery of the pool bottom; S2, template and spiral guide rail installation: assembling the arc-shaped template and installing the detachable arc-shaped spiral guide rail on the outer arc surface; S3, spiral climbing pouring and self-adaptive vibration: pouring the concrete in layers, detecting the steel reinforcement density by the double-mode vibration trolley climbing along the spiral guide rail and automatically switching the working conditions, inserting the internal vibration in the sparse area and externally vibrating the template in the dense area; S4, guide rail quick-release transfer and next section of template installation: after connecting the steel reinforcement, the guide rail is sequentially disassembled and transferred and installed to the outer arc surface of the last section of template, and is connected into a continuous guide rail; and S5, circulating construction to the design elevation. The method replaces the manual scaffold operation by the spiral guide rail and the self-adaptive vibration trolley, and can solve the problems of vibration difficulty in the densely arranged steel reinforcement area and unstable construction quality.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for constructing the walls of a sewage treatment plant pool. Background Technology

[0002] In recent years, the scale of urban sewage treatment construction has continued to expand. Circular pools, with their superior load-bearing capacity, high land utilization rate, and good structural stability, are increasingly widely used in large-scale sewage treatment plant projects. However, the curved structure of circular pool walls requires high forming precision, posing special technical requirements for concrete pouring and vibration operations.

[0003] Currently, the concrete pouring and vibration of circular sewage tank walls is still mainly done manually. During construction, multi-layer steel pipe scaffolding is erected outside the tank wall formwork as an operating platform. Construction workers use handheld vibrators on the scaffolding passages to vibrate the layered concrete at point by point along the circumference of the tank wall. In particular, in areas such as the reinforced areas of the tank wall and the reinforced areas connecting the bottom slab, where there are densely packed crisscrossing steel bars, the vibrator must be inserted through the gaps between the steel bars into the concrete to perform vibration.

[0004] Under the existing construction methods described above, firstly, the manual construction mode is labor-intensive, high-risk at heights, and suffers from poor stability and low controllability; secondly, the scaffolding working area is narrow, especially in sections with dense reinforcement, where the closely spaced reinforcement further compresses the insertion space and working path of the vibrator, making it difficult for construction workers to complete standardized vibration according to the specified spacing and depth, often resulting in problems such as vibration point misalignment and under-vibration in certain areas. This leads to uneven compaction of the concrete in the pool wall, causing quality defects such as insufficient strength, honeycomb surface defects, and water seepage, seriously affecting the structural integrity and impermeability durability of the sewage pool. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a method for constructing the walls of a wastewater treatment plant pool.

[0006] This application provides a construction method for the tank walls of a wastewater treatment plant, which adopts the following technical solution: A method for constructing the walls of a wastewater treatment plant includes S1, construction of the bottom of the pool: circumferentially binding the steel reinforcement skeleton of the first section of the pool wall around the outer perimeter of the already poured bottom of the pool to ensure that it meets the design requirements; S2. Template and spiral guide rail installation: Select an arc-shaped template unit that is compatible with the steel reinforcement skeleton of the pool wall, assemble and close it in a ring to form the first section of the casting template, and assemble a detachable arc-shaped spiral guide rail on the outer arc surface of the casting template. S3. Spiral Climbing Pouring and Adaptive Vibration: (a) The first layer of concrete is poured evenly in the first circular template according to the preset thickness; (b) A dual-mode vibration trolley is installed on the spiral guide rail and driven to climb in a spiral manner from bottom to top for vibration operation; (c) The dual-mode vibration trolley detects the density of the reinforcing bars in real time and automatically switches the working conditions according to the spacing of the reinforcing bars: in areas with sparse reinforcing bars, the vibrating rod is inserted into the interior for vibration, and in areas with dense reinforcing bars, the vibrating plate is attached to the outside of the template for vibration; (d) After the single layer vibration is completed, the subsequent layers of concrete are poured layer by layer and the vibration operation is repeated; (e) The construction is repeated until the first section of the pool wall is poured and vibrated. S4. Quick disassembly and transfer of spiral guide rail and installation of the next section of template: Continue to tie the second layer of pool wall steel reinforcement skeleton on the first section of the pool wall steel reinforcement skeleton; disassemble the detachable arc-shaped spiral guide rail on the outside of the first section of the casting template section by section, and coaxially assemble and close the second section of arc template on the top surface of the already cast pool wall; adapt and install the disassembled arc-shaped spiral guide rail section to the outer arc surface of the second section template to form a complete continuous spiral guide rail.

[0007] S5. Cyclic construction to the top of the pool: Repeat the pouring and vibration process of S3 and the disassembly and transportation process of the formwork and guide rails in S4, and carry out cyclic construction by ringing up the height, continuously completing the work of each section of the pool wall until the circular pool wall is constructed to the design elevation.

[0008] By adopting the above technical solution, a dual-mode vibratory compaction trolley that can spirally climb along the outer arc surface of the template is used to replace manual hand-held vibration work on narrow scaffolding, fundamentally reducing the risks of working at heights and the intensity of manual labor. At the same time, the dual-mode vibratory compaction trolley can detect the density of the reinforcing bars in real time and switch the vibration mode. In areas with sparse reinforcing bars, the vibratory rod is inserted into the interior for vibration, while in areas with dense reinforcing bars, the vibratory disc is placed against the outside of the template for vibration. This solves the problems of insufficient space for vibratory rod insertion and limited working path in areas with dense reinforcing bars, avoids vibration point offset, under-vibration and missed vibration, and makes the concrete density of the pool wall uniform, significantly improving the structural integrity and seepage prevention durability of the sewage pool.

[0009] Optionally, in S2, the arc-shaped spiral guide rail is an arc-shaped rack and pinion guide rail adapted to the circular pool wall; the arc-shaped rack and pinion guide rail includes multiple arc-shaped guide rail units spliced ​​together end to end, and a locking and positioning structure is provided between adjacent arc-shaped guide rail units.

[0010] By adopting the above technical solution, an arc-shaped rack and pinion guide rail with a locking and positioning structure is used. The positioning between guide rail segments is accurate and the splicing is tight, ensuring that the overall arc of the spiral guide rail is smooth and continuous. This provides a precise annular spiral climbing path for the vibrating trolley, further ensuring that the vibration points are covered point by point according to the standard spacing, and avoiding missed vibration.

[0011] Optionally, the outer arc surface of the casting template is sequentially fixed with mounting seats along the spiral climbing direction, and the arc-shaped guide rail unit is matched with a snap-fit ​​seat; the snap-fit ​​seat and the mounting seat can be detachably snapped together to realize the rapid assembly and disassembly of the arc-shaped guide rail unit.

[0012] By adopting the above technical solution, mounting seats are set on the outer arc surface of the casting template and corresponding clamping seats are set on the guide rail, so as to realize the rapid assembly and disassembly of the arc guide rail unit. Without damaging or rebuilding the operating platform, the guide rail can be conveniently transferred to the next section of template, which greatly shortens the time for guide rail transfer and repositioning, and adapts to the rhythm of segmented height-joining cyclical construction.

[0013] Optionally, the dual-mode vibratory compaction trolley includes a mobile chassis adapted to the arc-shaped rack and pinion guide rail, a mounting bracket on the mobile chassis, a dual-mode vibratory compaction mechanism on the mounting bracket, and a mode switching mechanism for controlling the dual-mode vibratory compaction mechanism to automatically switch working conditions. The dual-mode vibratory compaction mechanism includes an insert-type vibratory compaction component on the top of the mounting bracket and an attachment-type vibratory compaction component on the mounting bracket and close to the outer surface of the casting template.

[0014] By adopting the above technical solution, the mobile chassis equipped with a spiral guide rail enables the trolley to steadily climb along the circumferential wall of the pool. The mounting bracket integrates the insert-type and attachment-type vibratory components on the same carrier, and the mode switching mechanism controls the working condition conversion in real time. It can automatically and seamlessly switch the vibration mode in areas with sparse and dense reinforcement, which fundamentally solves the problem that the vibrator cannot be inserted or vibrated properly in sections with dense reinforcement, ensuring uniform and proper vibration throughout the entire circumference and height range.

[0015] Optionally, the insert-type vibratory assembly includes a lifting drive component vertically fixed to the top of the mounting bracket, and a vibrator connected to the output end of the lifting drive component.

[0016] By adopting the above technical solution, the lifting drive component precisely controls the insertion depth of the vibrator, so that the vibrator rod is inserted into the concrete at the specified depth in areas with sparse reinforcement to carry out vibration, avoiding inconsistent or incomplete insertion depth caused by manual operation, and eliminating defects such as insufficient internal compaction and insufficient strength caused by insufficient insertion.

[0017] Optionally, the attached vibratory compaction assembly includes a telescopic drive fixed to the mounting bracket, a vibratory motor located at the output end of the telescopic drive, and a vibratory disk located on the vibratory motor, wherein the working surface of the vibratory disk is adapted to the outer arc surface of the arc-shaped spiral guide rail.

[0018] By adopting the above technical solution, when the reinforcing bars are too dense to be inserted for vibration, the telescopic drive component presses the vibratory plate against the outer arc surface of the template. The working surface of the vibratory plate fits the arc-shaped template, and the vibration force is evenly transmitted into the concrete through external vibration, which overcomes the problem that the vibratory rod cannot be inserted in the dense reinforcing bar area and ensures that the area also achieves a dense effect.

[0019] Optionally, the mode switching mechanism includes a rebar detector for detecting rebar spacing, a controller connected to the rebar detector, and a switching actuator driven by the controller.

[0020] By adopting the above technical solution, the spacing of the reinforcing bars above the concrete pouring layer is detected by the rebar detector, thereby confirming the insertion spacing of the reinforcing bars. The controller automatically judges the sparse / dense state and drives the switching actuator to select the insertion type or attachment type vibration component to work, realizing automatic switching of working conditions without manual identification and intervention. This avoids the incorrect vibration mode caused by human judgment errors, and ensures accurate response at the point of sudden change in rebar density, eliminating vibration blind spots.

[0021] Optionally, the mobile chassis includes a drive gear meshing with the arc-shaped rack and pinion guide rail, a transmission gear meshing with the drive gear, a servo motor mounted on the mounting bracket and driving the transmission gear to rotate, a guide shaft coaxially fixed with the drive gear, and moving wheels located at both ends of the guide shaft and cooperating with the arc-shaped rack and pinion guide rail.

[0022] By adopting the above technical solution, the servo motor drives the transmission gear, which in turn drives the drive gear to mesh with the arc-shaped rack and pinion guide rail, thereby achieving precise control of the trolley's travel speed and position. Simultaneously, the guide shaft, coaxially fixed to the drive gear, and the moving wheels at both ends cooperate with the guide rail to provide stable multi-point support and guidance for the trolley, preventing swaying and ensuring accurate insertion of the vibrating rod and contact with the vibrating disc.

[0023] Optionally, the open end of the arc-shaped rack and pinion guide rail is provided with a limiting protrusion to prevent the moving wheel from slipping out.

[0024] By adopting the above technical solution, the limiting protrusion prevents the moving wheel from accidentally slipping off the guide rail during the high-altitude circular motion, ensuring the safety and operational reliability of the vibrating trolley throughout the spiral climbing process.

[0025] Optionally, in S3, the preset thickness of each layer of concrete is 30-50cm, and after each layer of concrete is vibrated, the next layer is poured before the concrete sets; the spiral climbing speed of the dual-mode vibrating trolley is synchronized with the layer pouring progress.

[0026] By adopting the above technical solutions, the layer thickness is reasonably controlled and the upper layer is covered before the lower layer of concrete sets. Combined with the synchronous coordination of the trolley's spiral climbing speed and the pouring progress, the new and old concrete of each layer are combined in time, and the vibration effect is not affected by the initial setting of the lower layer. At the same time, the movement of the trolley is matched with the pumping pouring to prevent vibration omissions caused by waiting or segregation caused by premature vibration, and further ensure the overall density and seepage prevention performance of the pool wall.

[0027] In summary, this application includes at least one of the following beneficial technical effects: A construction method for the walls of a sewage treatment plant employs a dual-mode vibratory trolley that can spirally ascend along the outer arc surface of the template. Simultaneously, the dual-mode vibratory trolley can detect the density of the reinforcing bars in real time and switch the vibration mode. In areas with sparse reinforcing bars, the vibratory rod is inserted into the interior for vibration, while in areas with dense reinforcing bars, the vibratory disc is placed against the outside of the template for vibration. This solves the problems of insufficient space for vibratory rod insertion and limited operating path in areas with densely packed reinforcing bars, thereby improving the structural integrity and impermeability durability of the sewage tank. Install mounting bases on the outer arc surface of the casting template and corresponding clamping bases on the guide rails to enable quick assembly and disassembly of the arc-shaped guide rail units. Without damaging or rebuilding the operating platform, the guide rails can be easily transferred to the next section of template, greatly shortening the time for guide rail transfer and repositioning, and adapting to the rhythm of segmented height-joining cyclical construction. The servo motor drives the transmission gear, which in turn drives the drive gear to mesh with the arc-shaped rack and pinion guide rail, achieving precise control of the trolley's speed and position. At the same time, the guide shaft and the moving wheels at both ends of the drive gear, which are coaxially fixed, cooperate with the guide rail to provide stable multi-point support and guidance for the trolley, prevent swaying during operation, and ensure accurate insertion position of the vibrating rod and contact position of the vibrating plate. Attached Figure Description

[0028] Figure 1 This is a cross-sectional schematic diagram of the wastewater treatment plant pool wall in an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the construction of the first section of the sewage treatment plant pool wall in the embodiments of this application.

[0030] Figure 3 This is a schematic diagram of the structure of the dual-mode vibrating trolley in the embodiments of this application.

[0031] Figure 4 This is a partial structural schematic diagram of the dual-mode vibrating trolley in an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Pool bottom; 2. Pool wall steel reinforcement frame; 3. Arc-shaped formwork unit; 31. Inner formwork; 32. Outer formwork; 321. Mounting base; 33. Pouring cavity; 4. Arc-shaped spiral guide rail; 41. Arc-shaped guide rail unit; 411. Clip-on seat; 412. Limiting protrusion; 5. Dual-mode vibrating trolley; 51. Mobile chassis; 511. Drive gear; 512. Transmission gear; 513. Servo walking motor; 514. Guide shaft; 515. Moving... 52. Driving wheel; 53. Mounting bracket; 54. Dual-mode vibration mechanism; 55. Insertion vibration assembly; 55. Lifting drive; 55. Lifting rod; 55. Electric push rod; 55. Telescopic bracket; 55. Vibrator; 56. Attached vibration assembly; 57. Telescopic drive; 58. Vibration motor; 59. Vibration plate; 50. Mode switching mechanism; 51. Rebar detector; 52. Controller; 53. Switching actuator. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] Reference Figure 1 and Figure 2 This invention relates to a construction method for the walls of wastewater treatment plants, primarily applicable to the pouring of walls for large circular wastewater treatment tanks. The core idea is to utilize a dual-mode vibratory compaction trolley 5 that spirals upwards along the outer arc surface of the tank wall template, replacing traditional manual vibratory compaction work on scaffolding. Furthermore, it addresses the difficulty of vibrating densely reinforced steel reinforcement areas through adaptive switching of vibration modes.

[0035] Reference Figures 1 to 4 A method for constructing the walls of a wastewater treatment plant pool, specifically including the following steps: S1, Construction of Pool Bottom 1: First, the circular bottom slab of the wastewater treatment plant was poured according to the design requirements. Around the perimeter of the poured and fully reinforced concrete bottom slab, the first section of the steel reinforcement cage 2 was tied according to the design drawings. During tying, the spacing, row spacing, and protective layer thickness of the vertical main reinforcement and horizontal distribution reinforcement must be strictly controlled to ensure compliance with design and specification requirements. In this embodiment, the diameter of the circular bottom slab is 6 meters, and the height of the first section of the steel reinforcement cage is 3 meters. A dense area of ​​vertical main reinforcement and horizontal distribution reinforcement is set every 4 meters along the perimeter of the pool wall as a reinforcing structure during pouring; the remaining areas are sparsely reinforced areas.

[0036] S2. Template and spiral guide rail installation: A standardized arc-shaped steel formwork unit adapted to the radius of curvature of the pool wall is selected. Multiple arc-shaped formwork units 3 are assembled and closed on the inner and outer sides of the first section of the pool wall reinforcement skeleton 2, respectively, to form an inner formwork 31 and an outer formwork 32. These two formwork units constitute an annular casting cavity 33, and the inner and outer formwork units 32 are fixed with tie rods to form the first section of the casting formwork. Adjacent arc-shaped steel formwork units are closed by interlocking concave-convex structures, and waterproof expansion strips are embedded on the inner side. Furthermore, a release agent is evenly applied to the concrete contact surfaces of the inner formwork 31 and the outer formwork 32. In this embodiment, the concave-convex structure is a stepped groove structure or a tenon and mortise structure that fits together.

[0037] On the outer arc surface of the first section of the cast-in-place formwork, a set of detachable arc-shaped spiral guide rails 4 are assembled along a pre-designed spiral climbing path. The arc-shaped spiral guide rail 4 is an arc-shaped rack and pinion guide rail. It is composed of multiple arc-shaped guide rail units 41 with an arc length of 4 meters spliced ​​end to end. The ends of adjacent arc-shaped guide rail units 41 are provided with a snap-fit ​​positioning structure. To achieve quick assembly and disassembly, multiple "L"-shaped mounting seats 321 are pre-welded and fixed on the outer arc surface of the cast-in-place formwork along the spiral direction, while a "C"-shaped snap-fit ​​seat 411 is welded to the back of each arc-shaped guide rail unit 41. During installation, the snap-fit ​​seat 411 is snapped in from top to bottom and pushed tightly onto the mounting seat 321 to complete the quick assembly of the guide rail unit; during disassembly, it is pushed out by tapping in the opposite direction. In this embodiment, the locking and positioning structure consists of a trapezoidal protrusion at one end of the arc-shaped guide rail unit 41 and a matching trapezoidal groove at the other end of the arc-shaped guide rail unit 41, thereby ensuring that the spiral line of the spliced ​​guide rail is smooth, continuous, and without misalignment.

[0038] S3, Spiral Climbing Casting and Adaptive Vibration: (a) First Layer Pouring: Using a concrete pump truck or concrete placing boom, the first layer of concrete is poured evenly into the annular cavity formed by the first section of the formwork and the steel reinforcement skeleton 2 of the pool wall, according to a preset thickness. In this embodiment, the preferred thickness of each layer of concrete is 50 cm, and the pouring sequence is to continuously and evenly spread the concrete in layers along the circumference of the pool wall. The dual-mode vibrating trolley 5 stops and vibrates segment by segment along the spiral track to ensure that the lower layer of concrete is covered by the upper layer before initial setting, effectively avoiding the generation of construction cold joints.

[0039] (b) Installation of the vibratory trolley: Place the pre-assembled dual-mode vibratory trolley 5 at the starting end of the spiral guide rail and ensure that the drive mechanism of the trolley meshes correctly with the tooth surface of the arc-shaped rack and pinion guide rail.

[0040] (c) Adaptive vibration: The dual-mode vibration trolley 5 is started, and its internal controller 542 controls the servo motor to drive the trolley to make a segmented circular spiral climbing motion along the spiral guide rail from bottom to top. During the climbing process, the mode switching mechanism 54 set at the front end of the trolley detects the density of the steel bars in the area to be vibrated.

[0041] Reference Figure 2 The mode switching mechanism 54 includes a rebar detector 541, a controller 542, and a switching actuator 543. In this embodiment, the rebar detector 541 is an electromagnetic induction probe; the controller 542 is a PLC programmable logic controller 542; the switching actuator 543 includes a set of electromagnetic reversing valves and a locking pin driven by an electromagnet, all of which are existing technologies.

[0042] When the spacing between the reinforcing bars detected by the rebar detector 541 is greater than a preset threshold, it is determined to be a sparse rebar area. At this time, the controller 542 drives the switching actuator 543 to connect the circuit of the insertion vibrating assembly 531, so that its working end is inserted into the newly poured concrete layer for internal vibration, while locking the attachment vibrating assembly 532.

[0043] When the rebar detector 541 detects multiple layers of densely intersecting rebars in front of it, with the spacing between the rebars less than a preset threshold, it determines the area to be densely rebar-filled. The controller 542 immediately issues a switching command, cutting off the insert-type vibrator assembly 531 and retracting it, while simultaneously unlocking the attachment-type vibrator assembly 532, allowing its working end to adhere to the formwork, and uniformly transmitting vibration energy into the concrete to achieve compaction of the concrete from the outside.

[0044] (d) Layer-by-layer cycle: After the single layer of concrete is vibrated, the double-mold vibrating trolley 5 automatically climbs one layer height along the spiral guide rail. At this time, the construction personnel immediately pour the next layer of concrete into the mold cavity. The spiral climbing speed of the trolley has been programmed to be synchronized with the layer pouring progress, ensuring that each layer of concrete is vibrated in time before initial setting and covered by the new concrete.

[0045] (e) First section completion: Repeat steps (a) to (d) above, pouring and vibrating layer by layer until the trolley rises to the top of the first section pouring template, completing the overall pouring and vibration of the current first section pool wall.

[0046] S4. Quick-release transfer of spiral guide rail and installation of the next section of template: After the concrete of the first section of the pool wall reaches the demolding strength, firstly, continue to tie the second section of the pool wall reinforcement skeleton 2 upwards at the top of the first section of the pool wall reinforcement skeleton 2. Then, taking advantage of the detachable design of the snap-fit ​​seat 411 on the mounting seat 321, manually knock and dismantle the arc-shaped guide rail unit 41 on the outside of the first section of the poured formwork from top to bottom on the hanging basket on the outside of the already poured pool wall.

[0047] Next, on the top surface of the first section of the pool wall that has been poured, the second section of the arc-shaped template is assembled and closed in the same direction upwards. After completion, the arc-shaped guide rail unit 41 that was just removed is quickly adapted and attached to the mounting base 321 at the corresponding position on the outer arc surface of the second section template through its snap-fit ​​seat 411, thus forming a new, complete and continuous extension section of the spiral guide rail.

[0048] S5. Continuous construction to the top of the pool: Repeat the pouring and vibration process of S3 and the formwork and guide rail disassembly and transportation process of S4, namely, tying reinforcement bars, erecting formwork and transferring and installing guide rails, adaptive vibration as the trolley climbs along the spiral guide rail, and recirculating the reinforcement bars. By continuously raising the height in this way, the construction of each section of the pool wall is completed until the entire circular pool wall is constructed to the final design elevation.

[0049] The following section provides a more detailed description of the core component for achieving adaptive vibration compaction, the dual-mode vibration compaction trolley 5.

[0050] Reference Figure 4 The dual-mode vibratory compaction trolley 5 includes a movable chassis 51 adapted to an arc-shaped rack and pinion guide rail. The movable chassis 51 serves as the power and load-bearing foundation, comprising a drive gear 511 that precisely meshes with the teeth of the arc-shaped rack and pinion guide rail, and a transmission gear 512 that meshes with the drive gear 511. A servo drive motor 513 is fixed to a mounting bracket 52, and its output end is connected to the transmission gear 512, driving the transmission gear 512 to rotate, which in turn drives the drive gear 511 to roll along the arc-shaped rack and pinion guide rail. Guide shafts 514 are fixed to both coaxial sides of the drive gear 511, and each end of the guide shaft 514 is equipped with a polyurethane movable wheel 515 that rolls against the inner wall of the guide rail, providing stable support and guidance for the trolley.

[0051] Reference Figure 2 and Figure 4 In addition, to eliminate the risk of derailment during high-altitude travel, the upper edge of the open end of the arc-shaped rack and pinion guide rail is bent inward to form a limiting protrusion 412, which confines the moving wheel 515 inside the guide rail.

[0052] Reference Figure 3 and Figure 4A rigid mounting bracket 52 is fixedly attached to the top of the mobile chassis 51. A lifting drive component 5311 is vertically fixed downward at the top of the mounting bracket 52, and the output end of the lifting drive component 5311 is connected to a vibrator 5312. During internal vibration, the lifting drive component 5311 extends vertically downward, driving the vibrator rod of the vibrator 5312 to precisely insert into the freshly poured concrete layer at a set depth. In this embodiment, the lifting drive component 5311 includes an electric push rod 53111 vertically fixed to the top of the mounting bracket 52, and a telescopic bracket 53112 suspended at the piston rod end of the electric push rod 53111, extending above the pouring cavity 33 formed by the pouring template. The output end of the electric push rod is connected to the vibrator 5312. In addition, a rebar detector 541 is fixed to the end of the telescopic bracket to detect the rebar skeleton in the unpoured area.

[0053] Reference Figure 4 The mounting bracket 52 is fixed with a telescopic drive component 5321. The output end of the telescopic drive component 5321 is connected to a vibration motor 5322. The vibration motor 5322 is equipped with a vibratory plate 5323, and the working surface of the vibratory plate 5323 is compatible with the outer arc surface of the arc-shaped template unit 3. During attached vibration, the telescopic drive component 5321 pushes the vibratory plate 5323 forward, so that the arc-shaped working surface of the vibratory plate 5323 is tightly attached to the outer arc surface of the casting template; the vibration motor 5322 generates a high-frequency excitation force, which transmits the vibration energy evenly into the concrete through the template, achieving compaction of the concrete from the outside. In this embodiment, the telescopic drive component 5321 is a hydraulic cylinder fixed on an elastic damping seat.

[0054] Reference Figure 2 and Figure 4 The dual-mode vibratory compaction trolley 5 is entirely coordinated by a program built into the controller 542. The controller 542 receives signals from the rebar detector 541 and outputs commands to control the actions of the lifting drive 5311, the telescopic drive 5321, the vibration motor 5322, and the servo travel motor 513, achieving closed-loop automated construction of detection-judgment-switching-vibration-climbing. Furthermore, the above control technologies are all existing technologies and will not be described in detail here.

[0055] The implementation principle of the wastewater treatment plant pool wall construction method in this application embodiment is as follows: First, a detachable arc-shaped spiral guide rail 4 is laid along the outer arc surface of the pool wall template to provide a walking path for the dual-mode vibrating trolley 5 to spirally climb around the pool wall. During vibration operation, the rebar detector 541 mounted on the front end of the dual-mode vibration trolley 5 detects the density of the rebar in the area to be vibrated and transmits the signal to the controller 542. When the area is determined to be sparsely rebared, the controller 542 drives the switching actuator 543 to connect the insert vibrating assembly 531, and the lifting drive 5311 drives the vibrator 5312 to insert into the concrete for vibration. When the area is determined to be densely rebared, the switching actuator 543 cuts off the insert vibrating assembly 531 and resets it, while unlocking the attached vibrating assembly 532. The telescopic drive 5321 pushes the vibrating plate 5323 to press against the outer arc surface of the template, and transmits high-frequency excitation force through the template to achieve compaction of the concrete in the densely rebared area from the outside. During the layer-by-layer pouring process, the dual-mode vibrating trolley 5 pauses and vibrates segment by segment to ensure that the lower layer of concrete is vibrated and covered by the upper layer before initial setting, thus avoiding cold joints during construction. After the first section of the pool wall is poured, the detachable snap-fit ​​structure between the arc-shaped guide rail unit 41 and the template mounting base 321 is used to remove the arc-shaped guide rail unit 41 segment by segment and quickly transfer and install it to the outer arc surface of the next section of the template, thus forming a new continuous spiral climbing path for the trolley to continue climbing. This process is repeated in a loop until the entire circular pool wall is constructed to the design elevation.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for constructing the walls of a wastewater treatment plant pool, characterized in that, Includes the following steps: S1, Pool bottom (1) construction: The first section of the pool wall steel reinforcement skeleton (2) is tied around the outer periphery of the already poured pool bottom (1). S2. Template and spiral guide rail installation: Select an arc-shaped template unit (3) that is compatible with the steel reinforcement skeleton (2) of the pool wall, assemble and close it in a ring to form the first section of the casting template, and assemble a detachable arc-shaped spiral guide rail (4) on the outer arc surface of the casting template. S3, Spiral Climbing Pouring and Adaptive Vibration: (a) The first layer of concrete is poured evenly in the first section of the circular template according to the preset thickness; (b) A double-mode vibration trolley (5) is installed on the spiral guide rail, and the double-mode vibration trolley (5) is driven to climb in a spiral ring from bottom to top to perform vibration operation; (c) The double-mode vibration trolley (5) detects the density of the reinforcing bars and automatically switches the working conditions according to the spacing of the reinforcing bars: in the sparse area of ​​the reinforcing bars, the vibrating rod is inserted into the interior for vibration, and in the dense area of ​​the reinforcing bars, the vibrating plate (5323) is attached to the outside of the template for vibration; (d) After the single layer vibration is completed, the subsequent layers of concrete are poured layer by layer and the vibration operation is repeated; (e) The construction is repeated until the first section of the pool wall is poured and vibrated. S4. Quick disassembly and transfer of spiral guide rail and installation of the next section of template: Continue to tie the second layer of pool wall steel reinforcement skeleton (2) on the first section of the pool wall steel reinforcement skeleton (2); disassemble the detachable arc spiral guide rail (4) on the outside of the first section of the casting template section by section, and coaxially assemble and close the second section of arc template on the top surface of the already cast pool wall; adapt and install the disassembled arc spiral guide rail (4) section on the outer arc surface of the second section template to form a complete continuous spiral guide rail; S5. Cyclic construction to the top of the pool: Repeat the pouring and vibration process of S3 and the disassembly and transportation process of the formwork and guide rails in S4, and carry out cyclic construction by ringing up the height, continuously completing the work of each section of the pool wall until the circular pool wall is constructed to the design elevation.

2. The method for constructing the pool wall of a sewage treatment plant according to claim 1, characterized in that, In S2, the arc-shaped spiral guide rail (4) is an arc-shaped rack and pinion guide rail adapted to the circular pool wall; the arc-shaped rack and pinion guide rail includes multiple arc-shaped guide rail units (41) spliced ​​together end to end, and a locking and positioning structure is provided between adjacent arc-shaped guide rail units (41).

3. The method for constructing the pool wall of a sewage treatment plant according to claim 2, characterized in that, The outer arc surface of the casting template is fixedly provided with mounting bases (321) in sequence along the spiral climbing direction, and the arc-shaped guide rail unit (41) is matched with a snap-fit ​​seat (411); the snap-fit ​​seat (411) and the mounting base (321) can be detachably snap-fitted together to realize the rapid assembly and disassembly of the arc-shaped guide rail unit (41).

4. The method for constructing the pool wall of a sewage treatment plant according to claim 2, characterized in that, The dual-mode vibratory trolley (5) includes a movable chassis (51) adapted to the arc-shaped rack and pinion guide rail, a mounting bracket (52) on the movable chassis (51), a dual-mode vibratory mechanism (53) on the mounting bracket (52), and a mode switching mechanism (54) for controlling the dual-mode vibratory mechanism (53) to automatically switch working conditions. The dual-mode vibratory mechanism (53) includes an insert vibratory component (531) on the top of the mounting bracket (52) and an attached vibratory component (532) on the mounting bracket (52) and close to the outer surface of the casting template.

5. A method for constructing a wastewater treatment plant pool wall according to claim 4, characterized in that, The insert-type vibratory assembly (531) includes a lifting drive (5311) vertically fixed to the top of the mounting bracket (52), and a vibrator (5312) connected to the output end of the lifting drive (5311).

6. A method for constructing a wastewater treatment plant tank wall according to claim 4, characterized in that, The attached vibratory assembly (532) includes a telescopic drive (5321) fixed on the mounting bracket (52), a vibratory motor (5322) located at the output end of the telescopic drive (5321), and a vibratory disk (5323) located on the vibratory motor (5322). The working surface of the vibratory disk (5323) is adapted to the outer arc surface of the arc-shaped spiral guide rail (4).

7. A method for constructing a wastewater treatment plant pool wall according to claim 4, characterized in that, The mode switching mechanism (54) includes a rebar detector (541) for detecting the spacing between rebars, a controller (542) connected to the rebar detector (541) by signal, and a switching actuator (543) driven by the controller (542).

8. A method for constructing a wastewater treatment plant pool wall according to claim 4, characterized in that, The mobile chassis (51) includes a drive gear (511) meshing with the arc-shaped rack and pinion guide rail, a transmission gear (512) meshing with the drive gear (511), a servo motor (513) mounted on the mounting bracket (52) and driving the transmission gear (512) to rotate, a guide shaft (514) coaxially fixed with the drive gear (511), and moving wheels (515) located at both ends of the guide shaft (514) and cooperating with the arc-shaped rack and pinion guide rail.

9. A method for constructing a wastewater treatment plant pool wall according to claim 8, characterized in that, The open end of the arc-shaped rack and pinion guide rail is provided with a limiting protrusion (412) to prevent the moving wheel (515) from slipping out.

10. A method for constructing a wastewater treatment plant pool wall according to claim 1, characterized in that, In the S3, the preset thickness of each layer of concrete is 30-50cm. After each layer of concrete is vibrated, the next layer is poured before the concrete sets. The spiral climbing speed of the dual-mode vibrating trolley (5) is synchronized with the layer pouring progress.

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