Prefabricated cover plate for quick top sealing construction of lock head empty box

Abstract

The utility model discloses a prefabricated cover plate for quick capping construction of a lock head empty box, which comprises a plurality of continuously arranged cover plate units, a connecting structure is pre-embedded in any cover plate unit, a plurality of joint bars are arranged on the periphery of any cover plate unit, one end of any joint bar is pre-embedded in the corresponding cover plate unit, and the other end of any joint bar is pre-embedded in the corresponding cover plate unit. The other end horizontally extends out of the cover plate unit; wherein the cover plate units are formed through concrete pouring, and the connecting structures, the joint bars and the concrete are integrally poured. By arranging the prefabricated cover plate, when the lock head empty box is subjected to top sealing construction, the prefabricated cover plate is directly hoisted to the top of the lock head empty box for top sealing operation, a full-height support does not need to be erected, investment of an empty box bottom formwork and supporting and reinforcing materials is reduced, engineering cost is effectively reduced, the construction progress is accelerated, and the construction efficiency is improved. And support dismantling operation in a limited space does not need to be carried out, the operation risk is reduced, and the construction safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship lock construction in water transport engineering, and more specifically, to a prefabricated cover plate used for the rapid capping construction of an empty box at a lock head. Background Art

[0002] Among the hydraulic structures of ship locks, the lock head is a water retaining structure that separates the lock chamber from the upstream and downstream navigation channels or two adjacent lock chambers. The lock head structure consists of side piers and a bottom plate on both sides. The integral lock head structure has become a common type of lock head structure design due to its advantages such as good stability, relatively uniform base stress, small uneven settlement of side piers, strong adaptability to foundations, good seismic performance, and friendly working conditions for gates. In order to reduce the deadweight of the integral lock head structure and reduce the hydration heat generated when pouring large volumes of concrete, the integral lock head usually has empty boxes at the side piers and bottom plates.

[0003] Traditionally, the top of an empty box is capped with a cast-in-place process. However, due to the large size of the empty box, the formwork support for the top plate of the empty box requires a full-height scaffolding to be erected inside the empty box for support. The formwork support takes a long time, requires a lot of consumables, and has a high construction cost. In addition, during the cast-in-place construction, holes must be reserved for construction workers to enter the empty box to remove the scaffolding. Finally, the reserved holes need to be sealed. When working in the empty box in summer, the temperature is high and the air circulation and lighting conditions are poor. The construction environment is harsh and the safety is low. Utility Model Content

[0004] Another object of the utility model is to provide a prefabricated cover plate for the rapid capping construction of an empty box at a gate head, which is directly installed on the top of the empty box by hoisting, without the need to set up a high bracket, thus saving construction costs. Construction workers do not need to work in a limited space, reducing construction difficulty and speeding up construction progress.

[0005] In order to achieve these purposes and other advantages according to the utility model, a prefabricated cover plate for the rapid capping construction of the empty box at the gate head is provided, comprising a plurality of cover plate units arranged continuously, a connection structure is pre-buried inside any cover plate unit, a plurality of dowels are arranged on the periphery of any cover plate unit, one end of any dowel is pre-buried in the corresponding cover plate unit, and the other end horizontally extends out of the cover plate unit;

[0006] The cover plate unit is formed by pouring concrete, and the connection structure and the dowels are integrally poured with the concrete.

[0007] Preferably, a tenon and a groove are respectively provided on both sides of any cover plate unit, the tenon and the groove are arranged to cooperate with each other, and two adjacent cover plate units are spliced ​​by the tenon and the groove.

[0008] Preferably, the connection structure comprises:

[0009] A plurality of distribution ribs are arranged at intervals along the width direction of the cover plate unit, and any distribution rib is arranged along the length direction of the cover plate unit;

[0010] A plurality of hook bars are arranged at intervals along the length direction of the cover plate unit, any hook bar is arranged along the width direction of the cover plate unit, and any hook bar is fixedly connected to the plurality of distribution bars.

[0011] Preferably, a plurality of reverse hanging ribs are pre-embedded in the top surface of the cover plate unit.

[0012] Preferably, the anchoring section of any reverse hanger is fixedly connected to a plurality of anti-cracking steel bars, any anti-cracking steel bar is arranged in parallel with the distribution bars, and the anti-cracking steel bar is located above the distribution bars.

[0013] Preferably, a groove is provided on the top of the cover plate unit.

[0014] The present invention at least includes the following beneficial effects: the present invention arranges a prefabricated cover plate, when carrying out the capping construction of the empty box at the gate head, the prefabricated cover plate can be directly hoisted to the top of the empty box at the gate head for capping operation, replacing the traditional cast-in-place capping process, and there is no need to erect a full-height support, which reduces the investment in the bottom formwork of the empty box and the supporting reinforcement materials, and at the same time, the number of working procedures is reduced, thereby reducing the investment in labor, mechanical equipment and raw materials, effectively reducing the project cost, speeding up the construction progress, and there is no need to carry out the support removal operation in the limited space, which reduces the operation risk and increases the construction safety.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the distribution structure of the connection structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the distribution structure of the reverse suspension bar of the utility model;

[0018] Description of the Figures in the Specification:

[0019] 1. Cover plate unit, 101. Tenon, 102. Groove, 2. Distribution reinforcement, 3. Hook reinforcement, 4. Reverse suspension reinforcement, 5. Anti-cracking reinforcement. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0021] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] like Figure 1-2 As shown, the utility model provides a prefabricated cover plate for the rapid capping construction of the empty box at the gate head, comprising a plurality of cover plate units 1 arranged continuously, a connection structure is pre-buried inside any cover plate unit 1, a plurality of dowels are arranged on the periphery of any cover plate unit 1, one end of any dowel is pre-buried in the corresponding cover plate unit 1, and the other end horizontally extends out of the cover plate unit 1;

[0023] The cover plate unit 1 is formed by pouring concrete, and the connection structure and the dowels are integrally poured with the concrete.

[0024] In the above technical scheme, the prefabricated cover plate includes a plurality of identical cover plate units 1. A corresponding number of cover plate units 1 can be selected according to the size of the top of the gate head empty box. After the plurality of cover plate units 1 are assembled into a whole, they are used to block the gate head empty box. The cover plate unit 1 is formed by pouring concrete. When the cover plate unit 1 is prefabricated, its bottom mold directly adopts the concrete floor of the prefabrication site. It is cleaned and laid with plastic film before construction. After the connection structure inside the cover plate unit 1 is tied, the side mold is constructed. The connection structure is a steel bar system, which is used to reinforce the cover plate unit 1 to ensure the safety of construction. The side mold adopts a new type of fish scale galvanized metal closing net and is provided with dowel bars. The dowel bars are arranged in the form of being arranged along the outermost circle of the cover plate unit 1. Any dowel bar extends out of the outside of the cover plate unit 1. No dowel bar is arranged on the contact surface of two adjacent cover plate units 1. The dowel bar is used to realize the effective connection between the cover plate unit 1 and the steel bars on the inner wall of the empty box to fix the cover plate unit 1 on the top of the empty box. After the side formwork is installed, concrete is poured into the side formwork to form a cover unit 1; according to the top size of most gate head empty boxes, in order to reduce the number of hoisting times and ensure the safety of hoisting, the size of the cover unit 1 is designed to be 6.3m×1m, with a thickness of 0.35m; in order to ensure the integrity and stability of the cover unit 1 connected to the inner wall steel bars of the gate head empty box after assembly, the spacing between two adjacent dowel bars is set to 50cm. The utility model sets a prefabricated cover plate, and when the gate head empty box is capped, the prefabricated cover plate is directly hoisted to the top of the gate head empty box for capping operation, replacing the traditional cast-in-place capping process, without the need to set up a full-height bracket, reducing the investment in the bottom formwork of the empty box and supporting reinforcement materials, while reducing the number of processes, thereby reducing the investment in labor, machinery and raw materials, effectively reducing project costs, speeding up construction progress, and eliminating the need to dismantle the bracket in a limited space, reducing operational risks and increasing construction safety.

[0025] In another technical solution, a tenon 101 and a groove 102 are respectively provided on both sides of any cover plate unit 1, and the tenon 101 and the groove 102 are arranged in cooperation with each other, and two adjacent cover plate units 1 are spliced ​​together by the tenon 101 and the groove 102. In this technical solution, two adjacent cover plate units 1 are spliced ​​together into a whole by the tenon 101 and the groove 102, which has a simple structure, is convenient for prefabrication, and is easy to assemble; a plurality of tenons 101 and grooves 102 are respectively provided along the length direction of the cover plate unit 1.

[0026] In another technical solution, the connection structure includes:

[0027] A plurality of distribution ribs 2 are arranged at intervals along the width direction of the cover plate unit 1, and any distribution rib 2 is arranged along the length direction of the cover plate unit 1;

[0028] A plurality of hook bars 3 are arranged at intervals along the length direction of the cover plate unit 1 , any hook bar 3 is arranged along the width direction of the cover plate unit 1 , and any hook bar 3 is fixedly connected to the plurality of distribution bars 2 .

[0029] In the present technical solution, the distribution ribs 2 are arranged along the length direction of the cover unit 1, the hook ribs 3 are arranged along the width direction of the cover unit 1, a plurality of hook ribs 3 are welded with a plurality of distribution ribs 2 to form a whole, the hook ribs 3 and the distribution ribs 2 cooperate with each other and are distributed in the entire transverse section of the cover unit 1, thereby ensuring the force-bearing capacity of the cover unit 1.

[0030] In another technical solution, the top surface of the cover plate unit 1 is pre-embedded with a plurality of reverse hanging rods 4. In this technical solution, the reverse hanging rods 4 are used for hoisting the cover plate unit 1 by the hoisting equipment, and a plurality of reverse hanging rods 4 are provided, which are arranged on the top surface of the entire cover plate unit 1, and the angle between two adjacent reverse hanging rods 4 is set to 45°.

[0031] In another technical solution, the anchoring section of any reverse hanger 4 is fixedly connected to a plurality of anti-cracking steel bars 5 , and any anti-cracking steel bar 5 is arranged parallel to the distribution bar 2 , and the anti-cracking steel bar 5 is located above the distribution bar 2 .

[0032] In the present technical solution, a plurality of anti-cracking steel bars 5 are arranged at the horizontal anchoring section of the reverse hanging bar 4 and welded thereto, which can ensure that the upper concrete structure of the cover unit 1 is not damaged during the lifting process, thereby ensuring the construction safety; at the same time, the anti-cracking steel bars 5 and the distribution bars 2 are arranged in layers along the thickness direction of the cover unit 1, which can cooperate with the hook bars 3 to further improve the force-bearing capacity and shear resistance of the cover unit 1.

[0033] In another technical solution, a groove is provided on the top of the cover unit 1.

[0034] In the present technical solution, after the cover unit 1 is installed, it is necessary to pour concrete on the upper part of the cover unit 1. Therefore, a groove is provided on the top of the cover unit 1 to improve the integrity of the connection between the cover unit 1 and the subsequently poured concrete and reduce the possibility of concrete stratification. At the same time, since a plurality of reverse hangers 4 are arranged on the top surface of the cover unit 1, when concrete is poured on the top of the cover unit 1, the reverse hangers 4 can be cast integrally with the concrete as a reinforcement structure to improve the force-bearing capacity of the subsequently poured concrete.

[0035] The installation method of prefabricated cover is as follows:

[0036] A 150T crawler crane is used to lift the cover unit 1 to the top of the empty box at the gate head. After manually adjusting the position and leveling it, the hook is removed to install the next cover unit 1. At the same time, it is ensured that the adjacent cover units 1 are tightly installed through the tenons 101 and the grooves 102. After all the cover units 1 are installed, the dowel bars on the outer periphery of multiple cover units 1 are connected to the steel bars on the inner wall of the empty box by binding or welding. At the same time, the joints and bottom of the cover units 1 are sealed with mortar to prevent leakage during the pouring of the side pier concrete. Subsequently, the upper concrete of the cover unit 1 is poured to complete the capping construction.

[0037] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A prefabricated cover plate for fast capping of empty box at gate head, characterized in that: It comprises a plurality of cover plate units arranged in series, wherein a connection structure is embedded in the interior of any cover plate unit, and a plurality of dowels are arranged on the periphery of any cover plate unit, wherein one end of any dowel is embedded in the corresponding cover plate unit, and the other end horizontally extends out of the cover plate unit; The cover plate unit is formed by pouring concrete, and the connection structure and the dowels are integrally poured with the concrete.

2. The prefabricated cover plate for the rapid capping construction of the empty box at the gate head according to claim 1 is characterized in that: Tenons and grooves are respectively provided on both sides of any cover plate unit, and the tenons and grooves are arranged in cooperation with each other, and two adjacent cover plate units are spliced ​​by the tenons and grooves.

3. The prefabricated cover plate for fast capping construction of the empty box at the gate head according to claim 1 is characterized in that: The connection structure comprises: A plurality of distribution ribs are arranged at intervals along the width direction of the cover plate unit, and any distribution rib is arranged along the length direction of the cover plate unit; A plurality of hook bars are arranged at intervals along the length direction of the cover plate unit, any hook bar is arranged along the width direction of the cover plate unit, and any hook bar is fixedly connected to the plurality of distribution bars.

4. The prefabricated cover plate for fast capping construction of the empty box at the gate head according to claim 3 is characterized in that: A plurality of reverse hanging bars are pre-embedded on the top surface of the cover plate unit.

5. The prefabricated cover plate for the rapid capping construction of the empty box at the gate head according to claim 4 is characterized in that: The anchoring section of any reverse hanger is fixedly connected to a plurality of anti-cracking steel bars, any anti-cracking steel bar is arranged in parallel with the distribution bars, and the anti-cracking steel bar is located above the distribution bars.

6. The prefabricated cover plate for the rapid capping construction of the empty box at the gate head according to claim 1 is characterized in that: The top of the cover plate unit is provided with a groove.

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