Modular assembly type high-pile wharf structure and construction method thereof

Abstract

This application relates to the field of wharf structure construction technology, and provides a modular prefabricated high-pile wharf structure and its construction method. The construction method includes the following steps: a) construction preparation; b) arranging the lower crossbeam, which is formed by casting and has pre-embedded vertical steel bars; c) erecting longitudinal beams; d) arranging the upper crossbeam through operators located on a suspended operating frame, which is also formed by casting. The suspended operating frame includes a main structure of the operating platform and a limiting structure connected to the main structure of the operating platform. The main structure of the operating platform is used to support the operators, and both ends of the main structure of the operating platform are supported on adjacent longitudinal beams. The limiting structure forms a limiting channel extending in the vertical direction; e) casting the bottom slab of the pool; f) installing prefabricated panels; g) constructing the track foundation; h) pouring the surface layer. This construction method improves the construction efficiency, construction safety, and stability of the modular prefabricated high-pile wharf structure.

Description

Technical Field

[0001] This application relates to the field of wharf structure construction technology, and more specifically, to a modular prefabricated high-pile wharf structure and its construction method. Background Technology

[0002] High-pile wharves are suitable for various geological types and are widely used in port construction, becoming one of the main structural forms of ports worldwide. Nowadays, with increasing requirements for construction quality and environmental protection, construction techniques have gradually transitioned from cast-in-place scaffolding construction to precast + cast-in-place splicing construction. Traditional cast-in-place high-pile wharf construction methods typically follow these main steps: first, piles are driven one by one at predetermined locations; after the pile foundations are completed, reinforcement is tied on-site at the pile tops, and formwork is erected; finally, concrete is poured and cured on-site to form a continuous wharf platform structure. In traditional construction methods, especially in high-altitude and water-adjacent operations such as on-site reinforcement tying, formwork erection, concrete pouring, and curing of the superstructure (beams, longitudinal beams, panels, etc.), the personal safety of construction workers is the primary consideration. Therefore, it is generally mandatory for construction workers to wear and fasten full-body safety belts, with their safety ropes suspended from reliable anchor points above (such as installed temporary or permanent structures).

[0003] However, this traditional method of relying on individual construction workers to perform high-altitude operations by suspending safety ropes has revealed a series of significant technical defects and limitations in practice:

[0004] First: The construction operation space is severely limited, resulting in poor construction flexibility and convenience.

[0005] The length of the safety rope restricts the range of movement for construction workers, forming a limited spherical space with the suspension point as the center and the rope length as the radius. When it is necessary to move within a larger area to perform delicate operations (such as precisely adjusting the position of reinforcing bars, installing and correcting complex formwork, and vibrating concrete), the safety rope is very prone to getting tangled or snagged on the surrounding dense pile foundations, reinforcing bar cages, formwork supports, temporary facilities, etc.

[0006] This entanglement and hooking not only hinders the normal movement of personnel, forcing construction workers to frequently unhook and rehook safety ropes to change their working positions, but also greatly reduces the effective operating space and decreases the flexibility and convenience of construction.

[0007] Second: The construction process is prone to shaking, resulting in poor construction stability.

[0008] When construction workers operate in confined spaces, they inevitably need to stretch their bodies, exert force, or make fine adjustments. These movements are transmitted to the safety rope. Because the safety rope itself has a certain degree of elasticity and freedom, the worker's actions can easily cause unnecessary swaying of themselves and connected structures (such as the formwork and reinforcing bars being installed).

[0009] This kind of shaking is particularly detrimental to operations that require high-precision positioning (such as the installation of precast components, positioning of embedded parts, and control of formwork joints), significantly reducing the stability and precision control level of construction, and may lead to increased structural dimensional deviations or decreased connection quality.

[0010] Third: Significant safety hazards and poor safety:

[0011] The frequent process of unhooking and rehooking the safety rope itself increases the risk window for falls from heights.

[0012] Entanglement of the safety rope with surrounding structures not only restricts movement, but may also hinder effective braking of the safety rope in emergency situations (such as loss of stability of personnel), and may even cause secondary injuries due to snagging.

[0013] The swaying during operations increases the risk of personnel losing their balance, especially when performing heavy physical labor or operating tools. The dense presence of personnel, tools, and materials in a confined space, coupled with swaying, significantly increases the probability of secondary safety accidents such as collisions, crushing, and falling tools and materials. Therefore, the traditional method of relying on individual suspension with safety ropes is relatively vulnerable and unsatisfactory in the high-density, complex high-pile wharf high-altitude operation environment.

[0014] Fourth, low construction efficiency:

[0015] Frequent unhooking and rehooking of safety ropes consumes a significant amount of effective working time. Limited space leads to slow worker movement, inconvenient operation, and difficulties in passing tools and materials. The swaying issue forces workers to spend extra time and effort stabilizing themselves and the workpiece, or to make repeated adjustments. The existence of safety hazards also necessitates a more cautious and slower operating method, and construction may be interrupted due to safety inspections or accident handling. Summary of the Invention

[0016] In view of this, this application provides a construction method for a modular prefabricated high-pile wharf structure to solve the technical problems of small construction operation space, poor construction flexibility and convenience, poor construction stability, poor safety and low construction efficiency in the existing high-pile wharf structure construction methods.

[0017] This application provides a construction method for a modular prefabricated high-pile wharf structure, wherein the construction method for the modular prefabricated high-pile wharf structure includes the following steps:

[0018] a. Construction preparation;

[0019] b. Arrange the lower crossbeam, which is formed by casting and has pre-embedded vertical steel bars extending upward in the vertical direction;

[0020] c. Longitudinal beam erection, including prefabricating longitudinal beams and erecting the prefabricated longitudinal beams on the lower crossbeam. Multiple longitudinal beams are arranged in parallel intervals. The multiple longitudinal beams include front beams arranged from front to back, multiple intermediate beams arranged in parallel intervals, and rear beams. The multiple intermediate beams arranged in parallel intervals include at least prefabricated track beams and prefabricated longitudinal beams.

[0021] d. An upper crossbeam is arranged by an operator on a suspended operating frame. The upper crossbeam is formed by casting. The two ends of the upper crossbeam are respectively connected to the front beam and the rear beam. The suspended operating frame includes an operating platform main structure and a limiting structure connected to the operating platform main structure. The operating platform main structure is used to support the operator. The two ends of the operating platform main structure are respectively supported on adjacent longitudinal beams. The limiting structure forms a limiting channel extending in the vertical direction. The vertical reinforcing bars pass through the limiting channel and are limited by the limiting structure.

[0022] e. The bottom slab of the water tank is cast and formed;

[0023] f. Install prefabricated panels;

[0024] g. Track foundation construction;

[0025] h. Surface layer pouring.

[0026] Furthermore, the main structure of the operating platform includes an upright frame and a horizontal frame connected to the lower end of the upright frame. The upright frame forms a support beam extending towards both ends. The support beam is supported on a corresponding longitudinal beam. The limiting structure is connected to the end of the horizontal frame away from the upright frame. An operator support platform is provided on the horizontal frame.

[0027] Furthermore, the limiting structure includes a first upright plate, a second upright plate, a first half-set, a second half-set, a first distance adjustment mechanism, and a second distance adjustment mechanism. The first upright plate and the second upright plate are connected to each other at intervals at the ends of the horizontal frame away from the upright frame. The first half-set and the second half-set are disposed between the first upright plate and the second upright plate. The concave arc surface of the first half-set and the concave arc surface of the second half-set face each other. The first distance adjustment mechanism is connected to the first upright plate and the first half-set respectively to drive the first half-set closer to or away from the second half-set. The second distance adjustment mechanism is connected to the second upright plate and the second half-set respectively to drive the second half-set closer to or away from the first half-set. When the vertical reinforcing bar is located between the concave arc surface of the first half-set and the concave arc surface of the second half-set, it can be limited in the limiting channel after the first half-set and the second half-set move closer to each other by a predetermined distance. After the first half-set and the second half-set move closer to each other by a predetermined distance, the space between the concave arc surface of the first half-set and the concave arc surface of the second half-set forms the limiting channel.

[0028] Furthermore, the outer convex surface of the first half-set is connected to a first driving block, the first driving block having a first threaded hole, the outer convex surface of the second half-set is connected to a second driving block, the second driving block having a second threaded hole, the first distance adjustment mechanism being a first screw rod passing through the first upright plate and screwed into the first threaded hole, the second distance adjustment mechanism being a second screw rod passing through the second upright plate and screwed into the second threaded hole, and both the first driving block and the second driving block being rotated and limited.

[0029] Furthermore, the limiting structure includes a rotating disk, a lifting drive mechanism, and an outer ring. The outer ring is arranged coaxially with the rotating disk. The rotating disk is rotatably connected to the end of the horizontal frame away from the vertical frame along a vertical rotation axis. The lifting drive mechanism is disposed on the rotating disk, and the outer ring is connected to the lifting drive mechanism. Multiple first half-holes with different diameters are arranged at intervals on the outer periphery of the rotating disk. The outer ring is located on the outer periphery of the rotating disk and has a second half-hole corresponding to the position of the first half-hole. The corresponding second half-hole has the same diameter as the first half-hole. The lifting drive mechanism can drive the outer ring to a position higher than the rotating disk and a position at the same height as the rotating disk. When the outer ring is at the same height as the rotating disk, the first half-hole and the corresponding second half-hole form the limiting channel.

[0030] Furthermore, a telescopic beam is provided at the end of the horizontal frame away from the vertical frame, and the rotating disk is rotatably connected to the telescopic beam. The telescopic beam can drive the rotating disk to move away from and closer to the horizontal frame.

[0031] Furthermore, the end of the support beam is connected to a downwardly extending limiting beam, the upright frame is connected to a linear telescopic drive mechanism, the linear telescopic drive mechanism is connected to a limiting block, the limiting block is located below the support beam, and the linear telescopic drive mechanism can drive the limiting block to move closer to or away from the limiting beam.

[0032] Furthermore, the casting of the pool bottom slab includes:

[0033] A suspended bottom formwork casting platform is constructed according to the dimensions of the bottom slab to be poured. Precast beams are set on two adjacent lower crossbeams, and two first I-beams are placed on each precast beam, making the two first I-beams parallel to each other. Then, multiple second I-beams are arranged on the upper surface of the two first I-beams, with the second I-beams perpendicular to the first I-beams. Then, at least four sets of fine-rolled threaded steel hangers arranged along the length of the second I-beams are used to connect the second I-beams to the longitudinally arranged third I-beams under the bottom slab formwork to be poured. The fine-rolled threaded steel hangers pass through the second I-beams and the third I-beams to support the bottom slab formwork to be poured. The third I-beams are parallel to the second I-beams. Square timber and composite wood formwork are laid on top of the third I-beams. Reinforcing bars are reserved at the precast beams and the lower crossbeams for connecting the bottom slab reinforcing bars. Locking nuts are provided at the positions of the fine-rolled threaded steel hangers above the second I-beams and below the third I-beams.

[0034] Furthermore, the track foundation construction includes using an auxiliary mechanism to pre-embed track beam bolts on the precast track beams. The auxiliary mechanism includes two parallel long beams, a short beam connecting the two long beams, and a detachable portal support plate supporting the two long beams. The portal support plate has various elevation models. The portal support plate includes a middle connecting plate and lower extension support plates connected to both ends of the middle connecting plate and extending downwards. Both ends of the middle connecting plate support the lower ends of the two long beams. The long beams have vertical through holes of the same size corresponding to the positions of the pre-embedded track bolts. The pre-embedded track bolt construction includes first placing the auxiliary mechanism on the precast track beam... On the side, make the long beam parallel to the precast track beam and align the long beam with the track along its length. Position and install the track beam bolts according to the position of the vertical through holes. After the track beam bolts are installed, move the auxiliary mechanism above the track beam bolts so that each track beam bolt passes through the corresponding vertical through holes on the two long beams. According to the foundation pouring elevation, support the corresponding elevation portal support plate on the precast track beam and let it support the lower surface of the two long beams. Tighten the track beam bolts passing through the long beams with nuts to ensure that the track beam bolts are completely fixed in the horizontal and vertical directions. Pour the track foundation concrete to the design elevation. After curing, loosen the nuts and dismantle and recycle the auxiliary mechanism.

[0035] In addition, the present invention also provides a modular prefabricated high-pile wharf structure, wherein the modular prefabricated high-pile wharf structure is obtained by the above-described construction method of the modular prefabricated high-pile wharf structure.

[0036] The beneficial effects of the construction method for the modular prefabricated high-pile wharf structure provided by this invention are as follows:

[0037] Compared to existing technologies, the construction method for the modular prefabricated high-pile wharf structure provided by this invention utilizes a suspended operating frame to support operators when arranging the upper crossbeam. The main structure of the operating platform can support the operators' movements, expanding the construction operation space compared to traditional suspended safety rope construction. This allows operators to move freely on the main structure of the operating platform, improving their flexibility and convenience. During use, both ends of the main structure of the operating platform are supported on adjacent longitudinal beams. The limiting structure forms a limiting channel extending vertically, through which the vertical reinforcing bars pass to be limited and stabilized by the limiting structure. Compared to traditional suspended safety rope construction, this reduces swaying during construction, effectively improving construction safety and stability. It also increases the installation efficiency in the related operations of arranging the lower crossbeam, thereby improving the construction efficiency of the modular prefabricated high-pile wharf structure.

[0038] Other beneficial effects of the present invention will be described in detail below. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 A simplified flowchart illustrating a construction method for a modular prefabricated high-pile wharf structure according to an embodiment of this application;

[0041] Figure 2 This is a plan view of a portion of the modular prefabricated high-pile wharf structure according to an embodiment of this application;

[0042] Figure 3 This is a three-dimensional schematic diagram of the suspended operating frame used in the construction method of a modular prefabricated high-pile wharf structure according to an embodiment of this application.

[0043] Figure 4 This is a partial perspective view of the limiting structure of the suspended operating frame used in the construction method of the modular prefabricated high-pile wharf structure according to an embodiment of this application.

[0044] Figure 5 This is a three-dimensional schematic diagram of another suspended operating frame used in the construction method of a modular prefabricated high-pile wharf structure according to an embodiment of this application.

[0045] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0046] Figure 7 This is another perspective view of a different type of suspended operating frame used in the construction method of a modular prefabricated high-pile wharf structure according to an embodiment of this application.

[0047] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0048] Figure 9 This is a partial top view of the limiting structure of another suspended operating frame used in the construction method of a modular prefabricated high-pile wharf structure according to an embodiment of this application.

[0049] Figure 10 This is a perspective view of a portion of the structure of another suspended operating frame used in the construction method of a modular prefabricated high-pile wharf structure according to an embodiment of this application.

[0050] Figure 11 This is a schematic diagram of the suspended bottom formwork in the construction method of a modular prefabricated high-pile wharf structure according to an embodiment of this application;

[0051] Figure 12 This is a three-dimensional schematic diagram of the auxiliary mechanism in the construction method of a modular prefabricated high-pile wharf structure according to an embodiment of this application.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1-Lower crossbeam; 2-Front beam; 3-Rear beam; 4-Precast track beam; 5-Precast longitudinal beam; 6-Upper crossbeam; 7-Precast beam; 8-First I-beam; 9-Second I-beam; 10-Precision rolled threaded steel lifting rod; 11-Third I-beam; 12-Composite wood formwork; 13-Locking nut; 14-Precast panel; 15-Water tank bottom plate; 16-Long beam; 17-Short beam; 18-Intermediate connecting plate; 19-Lower extension support plate; 20-Rail beam bolt; 21-Nut; 100-Suspended operating frame; 101-Upright frame; 102-Horizontal frame; 103-Operator support plate; 104-Support beam section; 105-Support block; 106-First upright plate; 07-Second vertical plate; 108-First half-set; 109-Second half-set; 110-First drive block; 111-Second drive block; 112-First screw; 113-Second screw; 114-Sliding limiting groove; 115-Rotating disk; 116-Lifting drive mechanism; 117-Outer ring; 118-First half-hole; 119-Second half-hole; 120-Telescopic beam; 121-Horizontal rod; 122-Vertical rod; 123-Rotating seat; 124-Knob-type threaded locking rod; 125-Rotating shaft; 126-Limiting beam; 127-Linear telescopic drive mechanism; 128-Limiting block; 129-Mounting sleeve; 130-First locking through hole; 131-Sliding beam. Detailed Implementation

[0054] To facilitate understanding of this application, a more comprehensive description will be provided below with reference to the accompanying drawings. One or at least three embodiments of this application are exemplarily shown in the drawings to provide a more accurate and thorough understanding of the technical solutions disclosed herein. However, it should be understood that this application can be implemented in many different forms and is not limited to the embodiments described below.

[0055] In the accompanying drawings of this application, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0056] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously.

[0057] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0058] See Figures 1 to 12 This application provides a construction method for a modular prefabricated high-pile wharf structure, wherein the construction method for the modular prefabricated high-pile wharf structure includes the following steps:

[0059] a. Construction preparation;

[0060] b. Arrange the lower crossbeam 1, which is formed by casting and has pre-embedded vertical steel bars extending upward in the vertical direction.

[0061] c. Longitudinal beam erection, including prefabricating longitudinal beams and erecting the prefabricated longitudinal beams on the lower crossbeam 1. Multiple longitudinal beams are arranged in parallel intervals. The multiple longitudinal beams include front beams 2 arranged from front to back, multiple intermediate beams and rear beams arranged in parallel intervals. The multiple intermediate beams arranged in parallel intervals include at least prefabricated track beams 4 and prefabricated longitudinal beams 5.

[0062] d. An upper crossbeam 6 is arranged by an operator on the suspended operating frame 100. The upper crossbeam 6 is formed by casting. The two ends of the upper crossbeam 6 are connected to the front beam 2 and the rear beam 3, respectively. The suspended operating frame 100 includes the main structure of the operating platform and the limiting structure connected to the main structure of the operating platform. The main structure of the operating platform is used to support the operator. The limiting structure is preferably arranged in multiple intervals along the length direction of the main structure of the operating platform, such as two. The two ends of the main structure of the operating platform are supported on adjacent longitudinal beams. For example, when the precast track beam 4 and the precast longitudinal beam 5 are adjacent, one end is supported on the precast track beam 4 and the other end is supported on the precast longitudinal beam 5. The limiting structure forms a limiting channel extending in the vertical direction. The vertical steel bars pass through the limiting channel to be limited by the limiting structure. During construction, the steel bars of the upper crossbeam 6 are tied first. After the steel bars are tied, the formwork is installed. Finally, the concrete is poured to form the upper crossbeam 6.

[0063] e. The bottom slab of the water tank is cast and formed at 15mm.

[0064] f. Install prefabricated panel 14;

[0065] g. Track foundation construction;

[0066] h. Surface layer pouring.

[0067] In the construction method of the modular prefabricated high-pile wharf structure provided by this invention, a suspended operating frame 100 is used to support the operators when arranging the upper crossbeam 6. The main structure of the operating platform can support the operators' activities. Compared with the traditional construction method of hanging safety ropes, it expands the construction operation space, allowing the operators to move freely on the main structure of the operating platform, improving the operators' construction flexibility and convenience. During use, the two ends of the main structure of the operating platform are supported on the adjacent longitudinal beams, and the limiting structure forms a limiting channel extending in the vertical direction. The vertical steel bars pass through the limiting channel and are limited by the limiting structure to maintain stability. Compared with the traditional construction method of hanging safety ropes, it reduces the swaying during construction, effectively improves construction safety and stability, and also improves the installation efficiency in the related operations of arranging the lower crossbeam 1, thereby improving the construction efficiency of the modular prefabricated high-pile wharf structure.

[0068] According to a specific embodiment of this application, construction preparation may include: 1. Developing a construction plan for the simultaneous splicing of the high-pile wharf platform and the environmental protection water tank. The technical supervisor will brief the workers, emphasizing key points for quality and safety construction to ensure construction quality and safety during component prefabrication and beam / slab splicing operations. 2. After the site clearing and earthwork construction are completed, construct a beam and slab prefabrication plant to produce prefabricated components such as hollow slabs, T-beams, and panels for the approach bridge. Based on the construction situation, select the prefabrication component installation vessel and slings, and develop a prefabrication component loading and installation sequence diagram. 3. Introducing BIM technology and establishing a three-dimensional information model based on the high-pile wharf platform construction process. Implementing comprehensive BIM technology application throughout the entire construction process. Leveraging the visualization and information advantages of BIM technology, perform tasks such as quantity surveying, construction progress simulation, and design optimization. 4. Prefabricating and manufacturing the necessary construction equipment in advance, including a suspended operating frame 100 (also known as a suspended platform widening frame), suspended bottom formwork, and auxiliary mechanisms (self-made pre-embedded bolt steel frame structure), according to the design dimensions of the frame platform. 5. After the steel pipe piles are driven, various indicators such as elevation and verticality are inspected to facilitate the construction of the wharf superstructure.

[0069] According to a specific embodiment of this application, the arrangement of the lower crossbeam 1 may include pouring the lower crossbeam onto the support surface of the precast longitudinal beam 5. After the pile driving is completed, the pile foundation is used for support, corbel supports are set on the piles, and combined steel sections are erected on the upper part. The top surface is covered with timber and bamboo plywood to form a temporary working platform. The bottom formwork uses 15mm bamboo plywood, which is fabricated according to the dimensions in the backyard, transported to the site, and assembled. The bamboo plywood is directly fixed to the square timber of the support system with steel nails. The joints between the pile body and the formwork, and between the formwork and the formwork, are sealed with double-sided tape to prevent grout leakage during concrete pouring. The crossbeam reinforcement is uniformly fabricated in the steel bar processing yard. The processed reinforcement is transported to the construction site by flatbed truck. After cleaning the bottom formwork panel, a release agent is evenly applied, and the reinforcement and protective layer spacers are installed according to the design requirements. The side formwork uses prefabricated steel molds, which are installed with the assistance of tower crane equipment according to the measurement and positioning. Before pouring concrete into the formwork for the lower crossbeam, the reinforcement, formwork, and other concealed works must be inspected. Only after passing the inspection can the cast-in-place concrete be poured. After the concrete reaches the demolding strength, the formwork is removed. The demolding is carried out by a floating crane. The side formwork is removed in sections first. After the strength of the test blocks cured under the same conditions on site reaches 75%, the bottom formwork is removed.

[0070] According to a specific embodiment of this application, the erection of the longitudinal beam may include: the curing period of the lower crossbeam 1, the support pads, etc., reaching the design and specification requirements and passing acceptance, and the curing period of the precast components reaching the design and specification requirements, and the longitudinal beam being erected by hoisting after the beam body has been tensioned and grouted. Before the hoisting operation, prepare the finished mortar, level the support pads, and accurately mark the installation position of the precast longitudinal beam using a total station. Mark the transverse and longitudinal center lines of the beam and the transverse lines at the beam ends on the top surface of the support pads of the lower crossbeam 1. Mark the bottom edge points of each beam segment transversely at the beam ends, and mark the vertical center line of the beam at both ends of each beam segment to control the elevation of the permanent supports. Throughout the construction process, attention should be paid to the protection of the longitudinal beam body, precast components, and other finished and semi-finished products.

[0071] According to one embodiment of this application, the main structure of the operating platform includes a vertical frame 101 and a horizontal frame 102 connected to the lower end of the vertical frame 101. The vertical frame 101 forms a support beam portion 104 extending towards both ends. The support beam portion 104 is supported on the corresponding longitudinal beam. A limiting structure is connected to the end of the horizontal frame 102 away from the vertical frame 101. An operator support platform is provided on the horizontal frame 102. The operator support platform can be composed of multiple operator support plates 103 spliced ​​together. The operator support platform can support the operator's activities, allowing the operator to stand on the operator support platform to move freely within a wider range, thereby improving the operator's construction flexibility and convenience.

[0072] According to one embodiment of this application, a support block 105 can be provided below the support beam 104, and the support block 105 supports the corresponding longitudinal beam, thereby increasing the support area and support stability.

[0073] According to another embodiment of this application, no support block 105 is provided below the support beam portion 104, but the portion of the support beam portion 104 used to support the corresponding longitudinal beam forms a widened structure.

[0074] According to a first embodiment of this application, the limiting structure includes a first upright plate 106, a second upright plate 107, a first half-piece 108, a second half-piece 109, a first distance adjustment mechanism, and a second distance adjustment mechanism. The first upright plate 106 and the second upright plate 107 are connected to the ends of the horizontal frame 102 away from the upright frame 101 at intervals. The first half-piece 108 and the second half-piece 109 are disposed between the first upright plate 106 and the second upright plate 107. The concave arc surface of the first half-piece 108 and the concave arc surface of the second half-piece 109 face each other. The first distance adjustment mechanism is connected to the first upright plate 106 and the first half-piece 108 respectively to drive the first half-piece 108 closer to or further away from the second half-piece 109. Set 109, the second distance adjustment mechanism is connected to the second vertical plate 107 and the second half set 109 respectively so as to drive the second half set 109 to move closer to or away from the first half set 108. When the vertical steel bar is located between the concave arc surface of the first half set 108 and the concave arc surface of the second half set 109, it can be limited in the limiting channel after the first half set 108 and the second half set 109 move closer to each other by a predetermined distance. After the first half set 108 and the second half set 109 move closer to each other by a predetermined distance (preferably the first half set 108 and the second half set 109 can wrap the vertical steel bar as much as possible), the space between the concave arc surface of the first half set 108 and the concave arc surface of the second half set 109 forms a limiting channel.

[0075] According to a specific embodiment of this application, the outer convex surface of the first half-set 108 is connected to a first driving block 110, which has a first threaded hole. The outer convex surface of the second half-set 109 is connected to a second driving block 111, which has a second threaded hole. The first distance adjustment mechanism is a first screw 112 that passes through the first vertical plate 106 and is screwed into the first threaded hole. The second distance adjustment mechanism is a second screw 113 that passes through the second vertical plate 107 and is screwed into the second threaded hole. The second screw 113 is coaxial with the first screw 112. Both the first drive block 110 and the second drive block 111 are rotatably limited, specifically by means of a sliding limiting groove 114 provided on the horizontal frame 102. The sliding limiting groove 114 extends in a direction parallel to the first screw 112, so that both the first drive block 110 and the second drive block 111 are connected to a sliding beam 131. The sliding beam 131 extends into the sliding limiting groove 114 and can move along the sliding limiting groove 114, thereby making the first drive block 110 and the second drive block 111 only move along the sliding limiting groove 114.

[0076] According to a second embodiment of this application, the limiting structure includes a rotating disk 115, a lifting drive mechanism 116, and an outer ring 117. The outer ring 117 is arranged coaxially with the rotating disk 115. The rotating disk 115 is rotatably connected to the end of the horizontal frame 102 away from the vertical frame 101 along a vertical rotation axis. The lifting drive mechanism 116 is disposed on the rotating disk 115, and the outer ring 117 is connected to the lifting drive mechanism 116 (e.g., a cylinder or hydraulic cylinder). When the lifting drive mechanism 116 is a cylinder, the cylinder body is connected to the rotating disk 115, the piston rod of the cylinder extends upward out of the cylinder body, and the upper end of the piston rod is connected to a horizontal rod 121. The horizontal rod 121 is connected to a downwardly extending vertical rod 122. 22 connects to the outer ring 117, so the outer ring 117 can rotate synchronously with the rotating disk 115. Multiple first half-holes 118 of different diameters are arranged at intervals on the outer periphery of the rotating disk 115. The outer ring 117 is located on the outer periphery of the rotating disk 115 and has second half-holes 119 corresponding to the positions of the first half-holes 118. When the first half-holes 118 rotate with the rotating disk 115, the second half-holes 119 rotate synchronously with the outer ring 117 and the first half-holes 118. The diameter of the corresponding second half-hole 119 is the same as that of the first half-hole 118. The lifting drive mechanism 116 can drive the outer ring 117 to a position higher than the rotating disk 115 and a position at the same height as the rotating disk 115. When the outer ring 117 and the rotating disk 115... When the height is equal, the first half-hole 118 and the corresponding second half-hole 119 form a limiting channel. In this embodiment, since the limiting structure includes multiple first half-holes 118 and second half-holes 119, and the diameters of the first half-holes 118 are inconsistent, while the diameters of the corresponding second half-holes 119 are consistent with those of the first half-holes 118, the first half-holes 118 and the corresponding second half-holes 119 can form multiple limiting channels with inconsistent diameters. Thus, if different construction sites require vertical reinforcing bars of different radii, the rotating disk 115 can be rotated as needed, so that the first half-hole 118 of the required diameter reaches the position of the vertical reinforcing bar to be limited (for example, rotated to the front of the horizontal frame 102). After the vertical reinforcing bar enters the first half-hole 118, the outer ring 117 is driven to descend to the same height as the rotating disk 115 by the lifting drive mechanism 116. At this time, the first half-hole 118 and the corresponding second half-hole 119 together enclose and limit the vertical reinforcing bar (that is, form a limiting channel to limit the vertical reinforcing bar). Therefore, the limiting structure can adapt to vertical reinforcing bars of different radii, increasing the construction flexibility, adaptability and versatility of the construction method of modular prefabricated high-pile wharf structure. On the other hand, the rotating disk 115 can also adjust the position of the first half-hole 118 and the second half-hole 119 to a certain extent during the process, so that the rotating disk 115 can reach the matching position with the vertical reinforcing bar more accurately.

[0077] According to one embodiment of this application, a telescopic beam 120 is provided at the end of the horizontal frame 102 away from the vertical frame 101. A rotating disk 115 is rotatably connected to the telescopic beam 120. The rotating disk 115 can be driven manually or by a motor. A rotating seat 123 is provided on the telescopic beam 120. A rotating shaft 125 is connected to the center of the lower end of the rotating disk 115. The rotating shaft 125 is rotatably inserted into the rotating seat 123. If the rotating disk 115 is driven manually, a through-type knob screw is installed on the rotating seat 123. The threaded locking lever 124, a knob-type threaded locking lever 124, can be tightened to lock the rotating shaft 125 or loosened to release the lock on the rotating shaft 125. The telescopic beam 120 can drive the rotating disk 115 to move away from and closer to the horizontal frame 102, thereby adjusting the distance of the rotating disk 115 relative to the horizontal frame 102, and further adjusting the distance of the first half hole 118 and the corresponding second half hole 119 relative to the horizontal frame 102 to better match the position of the vertical reinforcing bar to be limited. The telescopic beam 120 can be moved manually or electrically.

[0078] According to one embodiment of this application, the end of the support beam 104 is connected to a downwardly extending limiting beam 126, and the upright frame 101 is connected to a linear telescopic drive mechanism 127. The linear telescopic drive mechanism 127 is, for example, an electric guide rail, a cylinder, or a hydraulic cylinder. The linear telescopic drive mechanism 127 is connected to a limiting block 128, which is located below the support beam 104. The linear telescopic drive mechanism 127 can drive the limiting block 128 to move closer to or away from the limiting beam 126. When the support beam 104 is supported on the longitudinal beam, the longitudinal beam can be clamped and limited between the limiting block 128 and the limiting beam 126 by moving the limiting block 128 closer to the limiting beam 126, which further improves the stability of the suspended operating frame 100.

[0079] According to a specific embodiment of this application, a mounting sleeve 129 is provided in the horizontal frame 102, and a telescopic beam 120 is telescopically installed in the mounting sleeve 129. A first locking through hole 130 is provided on the mounting sleeve 129, and a plurality of second locking through holes corresponding to the first locking through hole 130 are provided on the telescopic beam 120. When different second locking through holes are aligned vertically with the first locking through hole 130, the extension distance of the telescopic beam 120 relative to the mounting sleeve 129 is different. Specifically, the telescopic beam 120 can be moved manually, or the rotating disk 115 can be pushed to move the telescopic beam 120. When aligned vertically with the first locking through hole 130, locking pins, locking rods, or bolts can be inserted through the first locking through hole 130 and the second locking through hole to lock the telescopic beam 120 to the mounting sleeve 129. This achieves the purpose of locking the telescopic beam 120 to different extension positions relative to the mounting sleeve 129, so that the suspended operating frame 100 can flexibly adapt to the limiting of vertical reinforcing bars at different positions. The operator support plate 103 is provided with a clearance notch at the position corresponding to the first locking through hole 130, which facilitates the insertion of locking pins, locking rods, or bolts through the clearance notch into the first locking through hole 130 and the second locking through hole.

[0080] According to a specific embodiment of this application, the casting of the pool bottom slab 15 includes: forming a suspended bottom mold, specifically, fabricating a suspended bottom mold casting platform according to the dimensions of the bottom slab to be cast; setting precast beams 7 on two adjacent lower crossbeams 1; placing two first I-beams 8 on each precast beam 7, making the two first I-beams 8 parallel to each other; then placing a plurality of second I-beams 9 arranged on the upper surface of the two first I-beams 8, the second I-beams 9 being perpendicular to the first I-beams 8; and then using at least four sets of finely rolled threaded steel lifting rods 10 arranged along the length direction of the second I-beams 9 to connect the second I-beams 9 to the bottom slab to be cast. The third I-beam 11, arranged longitudinally under the template, is connected. A threaded steel hanger 10 passes through the second I-beam 9 and the third I-beam 11, used to support the bottom slab template for pouring. The third I-beam 11 is parallel to the second I-beam 9. Square timber and composite wood template 12 are laid above the third I-beam 11. Reinforcing bars are pre-installed at the precast beam 7 and the lower crossbeam 1 for connecting the bottom slab reinforcement. Locking nuts 13 are installed at the locations of the threaded steel hanger 10 above the second I-beam 9 and below the third I-beam 11. After the bottom slab concrete is poured, the inner wall of the pool is coated with E-26 concrete-specific paint. The paint is applied using one coat of primer, two coats of intermediate paint, and one coat of topcoat, with a dry film thickness of 300μm ± 20.

[0081] According to a specific embodiment of this application, the installation of prefabricated panel 14 includes: using a total station to lay out the panel installation position and elevation control points, checking the elevation and planar position of the support surface, and drawing the installation axis and end lines to ensure accurate positioning of the components. The panel resting surface is cleaned with water, leveled with M20 cement mortar, with an area slightly larger than the resting area, and the mortar thickness at the edge is slightly thicker than the inner mortar at the edge, ensuring that the outside is higher than the inside to ensure full grouting. After installation, a small amount of excess mortar should be squeezed out of the joint, and there should be no gaps at the joints. The joints are then filled tightly with mortar and grouted. The crane vessel is first anchored in the installation area parallel to the direction of the frame for initial positioning, and then precisely positioned to the hoisting position using GPS anchor winch. The distance between the vessel hull and the frame components is required to be no less than 1m.

[0082] According to a specific embodiment of this application, the track foundation construction includes using an auxiliary mechanism to pre-embed track beam bolts 20 on the precast track beam 4. The auxiliary mechanism includes two parallel long beams 16, a short beam 17 connected between the two long beams 16, and a portal support plate detachably supported below the two long beams 16. The long beams 16 and short beams 17 can both be square tubular steel pipes to form a self-made pre-embedded bolt steel frame structure. The portal support plate has various elevation models and includes a middle connecting plate 18 and lower extension support plates 19 connected to both ends of the middle connecting plate 18 and extending downwards. The two ends of the middle connecting plate 18 respectively support the lower ends of the two long beams 16. Vertical through holes of the same size and corresponding to the positions of the track pre-embedded bolts are opened on the long beams 16. The track pre-embedded bolt construction includes first... The auxiliary mechanism is placed on one side of the precast track beam 4, so that the long beam 16 is parallel to the precast track beam 4 and aligned with the track along its length. The track beam bolts 20 are positioned and installed according to the position of the vertical through holes. After the track beam bolts 20 are installed, the auxiliary mechanism is moved above the track beam bolts 20, so that each track beam bolt 20 passes through the corresponding vertical through holes on the two long beams 16. According to the foundation pouring elevation, the portal support plate of the corresponding elevation is supported on the precast track beam 4 and supports the lower surface of the two long beams 16. The track beam bolts 20 passing through the long beams 16 are tightened and reinforced with nuts 21 to ensure that the track beam bolts 20 are completely fixed in the horizontal and vertical directions. The track foundation concrete is poured to the design elevation. After curing, the nuts 21 are loosened and the auxiliary mechanism is dismantled and recycled.

[0083] According to a specific embodiment of this application, the surface layer pouring includes: timely concrete pouring after the surface layer reinforcement is tied, and simultaneously setting a 6mm diameter anti-crack steel mesh on the surface layer to increase its crack resistance. Concrete pouring proceeds from one end to the other, preventing concrete segregation and ensuring even spreading. To guarantee the quality of the corners, sufficient concrete must be laid at the corners. The concrete surface must be ground three times: two rough grindings and three fine grindings. Each grinding is done with a slurry lifting machine for rough grinding, followed by a trowel for fine grinding. Special attention must be paid to controlling the concrete's water settling time during the final grinding. After the concrete surface has initially set, it must be promptly covered and sealed with a film to prevent internal air flow. The surface concrete curing method uses a plastic film covering and geotextile sprinkling with water to maintain moisture. After the concrete has finally set, it is covered with a plastic film and geotextile and sprinkling with fresh water for at least 14 days. A surface layer curing system is established, with designated personnel, time, and quantity for watering, keeping the geotextile constantly moist, and maintaining accurate concrete curing records.

[0084] Compared with the traditional construction method of pouring environmental protection pools after the construction of wharf platform frames, the modular prefabricated high-pile wharf structure construction method provided by this invention combines the construction of platform beam and slab structures with the construction of platform beam and slab structures. This method does not occupy critical construction period. At the same time, by using suspended operating frame 100, suspended bottom formwork, and self-made pre-embedded bolt steel frame structure to assist construction, a series of problems such as inconvenience in tying the reinforcing bars of the cast-in-place beams of the pool wall, difficulty in erecting formwork for the bottom slab of the pool, and inaccurate positioning of pre-embedded track bolts are solved.

[0085] In addition, the present invention also provides a modular prefabricated high-pile wharf structure, which is obtained by the above-described construction method for modular prefabricated high-pile wharf structures.

[0086] It should be noted that the above embodiments only illustrate preferred embodiments of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting this application. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of this application, such as combining different features in various embodiments, and these should all fall within the protection scope of this application.

Claims

1. A construction method for a modular prefabricated high-pile wharf structure, characterized in that, The construction method for the modular prefabricated high-pile wharf structure includes the following steps: a. Construction preparation; b. Arrange a lower crossbeam, wherein the lower crossbeam is pre-embedded with vertical reinforcing bars extending upward in the vertical direction; c. Longitudinal beam erection, including prefabricating longitudinal beams and erecting the prefabricated longitudinal beams on the lower crossbeam. Multiple longitudinal beams are arranged in parallel intervals. The multiple longitudinal beams include front beams arranged from front to back, multiple intermediate beams arranged in parallel intervals, and rear beams. The multiple intermediate beams arranged in parallel intervals include at least prefabricated track beams and prefabricated longitudinal beams. d. An upper crossbeam is arranged by an operator on a suspended operating frame. The two ends of the upper crossbeam are respectively connected to the front beam and the rear beam. The suspended operating frame includes an operating platform main structure and a limiting structure connected to the operating platform main structure. The operating platform main structure is used to support the operator. The two ends of the operating platform main structure are respectively supported on adjacent longitudinal beams. The limiting structure forms a limiting channel extending in the vertical direction. The vertical reinforcing bars pass through the limiting channel and are limited by the limiting structure. e. The bottom slab of the water tank is cast and formed; f. Install prefabricated panels; g. Track foundation construction; h. Surface layer pouring.

2. The construction method for the modular prefabricated high-pile wharf structure according to claim 1, characterized in that, The main structure of the operating platform includes an upright frame and a horizontal frame connected to the lower end of the upright frame. The upright frame forms a support beam extending towards both ends. The support beam is supported on a corresponding longitudinal beam. The limiting structure is connected to the end of the horizontal frame away from the upright frame. An operator support platform is provided on the horizontal frame.

3. The construction method for the modular prefabricated high-pile wharf structure according to claim 2, characterized in that, The limiting structure includes a first upright plate, a second upright plate, a first half-set, a second half-set, a first distance adjustment mechanism, and a second distance adjustment mechanism. The first upright plate and the second upright plate are connected to each other at intervals at the ends of the horizontal frame away from the upright frame. The first half-set and the second half-set are disposed between the first upright plate and the second upright plate. The concave arc surface of the first half-set and the concave arc surface of the second half-set face each other. The first distance adjustment mechanism is connected to the first upright plate and the first half-set respectively to drive the first half-set closer to or away from the second half-set. The second distance adjustment mechanism is connected to the second upright plate and the second half-set respectively to drive the second half-set closer to or away from the first half-set. When the vertical reinforcing bar is located between the concave arc surface of the first half-set and the concave arc surface of the second half-set, it can be limited in the limiting channel after the first half-set and the second half-set move closer to each other by a predetermined distance. After the first half-set and the second half-set move closer to each other by a predetermined distance, the space between the concave arc surface of the first half-set and the concave arc surface of the second half-set forms the limiting channel.

4. The construction method for the modular prefabricated high-pile wharf structure according to claim 3, characterized in that, The first half of the set has a first driving block connected to its outer convex surface. The first driving block has a first threaded hole. The second half of the set has a second driving block connected to its outer convex surface. The second driving block has a second threaded hole. The first distance adjustment mechanism is a first screw that passes through the first vertical plate and is screwed into the first threaded hole. The second distance adjustment mechanism is a second screw that passes through the second vertical plate and is screwed into the second threaded hole. Both the first driving block and the second driving block are rotated and limited.

5. The construction method for the modular prefabricated high-pile wharf structure according to claim 2, characterized in that, The limiting structure includes a rotating disk, a lifting drive mechanism, and an outer ring. The outer ring is arranged coaxially with the rotating disk. The rotating disk is rotatably connected to the end of the horizontal frame away from the vertical frame along a vertical rotation axis. The lifting drive mechanism is disposed on the rotating disk, and the outer ring is connected to the lifting drive mechanism. The outer periphery of the rotating disk has a plurality of first half-holes with different diameters arranged at intervals. The outer ring is located on the outer periphery of the rotating disk and has a second half-hole corresponding to the position of the first half-hole. The corresponding second half-hole has the same diameter as the first half-hole. The lifting drive mechanism can drive the outer ring to a position higher than the rotating disk and a position at the same height as the rotating disk. When the outer ring is at the same height as the rotating disk, the first half-hole and the corresponding second half-hole form the limiting channel.

6. The construction method for the modular prefabricated high-pile wharf structure according to claim 5, characterized in that, The horizontal frame is provided with a telescopic beam at the end away from the vertical frame, and the rotating disk is rotatably connected to the telescopic beam. The telescopic beam can drive the rotating disk to move away from and closer to the horizontal frame.

7. The construction method for the modular prefabricated high-pile wharf structure according to claim 5, characterized in that, The end of the support beam is connected to a downwardly extending limiting beam. The upright frame is connected to a linear telescopic drive mechanism. The linear telescopic drive mechanism is connected to a limiting block. The limiting block is located below the support beam. The linear telescopic drive mechanism can drive the limiting block to move closer to or away from the limiting beam.

8. The construction method for the modular prefabricated high-pile wharf structure according to any one of claims 1 to 7, characterized in that, The casting of the bottom slab of the water tank includes: A suspended bottom formwork casting platform is constructed according to the dimensions of the bottom slab to be poured. Precast beams are set on two adjacent lower crossbeams, and two first I-beams are placed on each precast beam, making the two first I-beams parallel to each other. Then, multiple second I-beams are arranged on the upper surface of the two first I-beams, with the second I-beams perpendicular to the first I-beams. Then, at least four sets of fine-rolled threaded steel hangers arranged along the length of the second I-beams are used to connect the second I-beams to the longitudinally arranged third I-beams under the bottom slab formwork to be poured. The fine-rolled threaded steel hangers pass through the second I-beams and the third I-beams to support the bottom slab formwork to be poured. The third I-beams are parallel to the second I-beams. Square timber and composite wood formwork are laid on top of the third I-beams. Reinforcing bars are reserved at the precast beams and the lower crossbeams for connecting the bottom slab reinforcing bars. Locking nuts are provided at the positions of the fine-rolled threaded steel hangers above the second I-beams and below the third I-beams.

9. The construction method for the modular prefabricated high-pile wharf structure according to any one of claims 1 to 7, characterized in that, The track foundation construction includes using an auxiliary mechanism to pre-embed track beam bolts on the precast track beams. The auxiliary mechanism includes two parallel long beams, a short beam connecting the two long beams, and a detachable portal support plate supporting the two long beams. The portal support plate has various elevation models. Each portal support plate includes a central connecting plate and downward-extending lower support plates connected to both ends of the central connecting plate. The two ends of the central connecting plate support the lower ends of the two long beams. Vertical through holes of the same size and corresponding to the positions of the pre-embedded track bolts are formed on the long beams. The pre-embedded track bolt construction involves first placing the auxiliary mechanism on one side of the precast track beam. Align the long beam with the precast track beam and align the long beam with the track along its length. Position and install the track beam bolts according to the position of the vertical through holes. After the track beam bolts are installed, move the auxiliary mechanism above the track beam bolts so that each track beam bolt passes through the corresponding vertical through holes on the two long beams. According to the foundation pouring elevation, support the corresponding elevation portal plate on the precast track beam and support the lower surface of the two long beams. Tighten the nuts to reinforce the track beam bolts passing through the long beams to ensure that the track beam bolts are completely fixed in the horizontal and vertical directions. Pour the track foundation concrete to the design elevation. After curing, loosen the nuts and dismantle and recycle the auxiliary mechanism.

10. A modular prefabricated high-pile wharf structure, characterized in that, The modular prefabricated high-pile wharf structure is obtained by the construction method of the modular prefabricated high-pile wharf structure described in any one of claims 1 to 9.

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