Underwater foundation of tower crane

Abstract

The utility model relates to the technical field of tower crane foundations, in particular to a tower crane underwater foundation, a steel casing is arranged at the upper end of the tower crane foundation, the lower end of the steel casing is connected with the upper end of the tower crane foundation through bolts, and a concrete reverse ridge is arranged on the side edge of the lower end of the steel casing in an attached mode. The concrete reverse ridge is arranged at the upper end of the tower crane foundation, meanwhile, a supporting assembly and a pumping assembly are arranged in the steel casing, the supporting assembly is used for supporting the steel casing, and the pumping assembly is used for pumping leaked water in the steel casing. Through the combined use of the foundation standard knot, the longitudinal stiffening partition plates and the transverse stiffening partition plates, the structural stability and the bearing capacity of the steel casing are remarkably improved, stable operation of a tower crane in an underwater environment is ensured, meanwhile, the concrete reverse ridge arranged on the side edge of the lower end of the steel casing effectively resists water pressure and soil pressure, and the service life of the steel casing is prolonged. Therefore, the risk of water permeation is reduced, and the water tightness and the stability of the tower crane foundation are further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane foundations, and particularly to an underwater foundation for a tower crane. Background Technique

[0002] Bridge construction is a key link in infrastructure development, especially when crossing natural obstacles such as rivers and canyons, its importance is particularly prominent. As an indispensable heavy machinery in bridge construction, tower cranes are mainly used for vertical and horizontal transportation of materials, and play an important role especially in the installation process of large components such as precast beams.

[0003] However, in bridge construction in a river environment, the deployment of tower cranes faces a series of complex problems. The normal water level of the river is often higher than the top surface of the pier cap, which means that the foundation of the tower crane must be built underwater or in an area with frequent water level changes. This not only requires the foundation structure to have sufficient stability to resist the impact of water flow, but also must ensure that the tower crane itself is not affected by water immersion, and avoid equipment damage and maintenance difficulties caused by problems such as corrosion, silt coverage, and collision with underwater objects.

[0004] The traditional solution is to use cofferdam technology around the pier, that is, to isolate the construction area from the external water area by building a dam or caisson, and then pump out the water to create a dry working environment. However, this method has the following limitations:

[0005] 1) Cost and efficiency: The construction and demolition of cofferdams require a large amount of resources, and the construction period is relatively long, which has a significant impact on the project progress.

[0006] 2) Environmental protection considerations: The construction of cofferdams may interfere with the river ecosystem and strict environmental protection regulations need to be complied with.

[0007] 3) Safety: In deep water environments, the stability of cofferdams is tested, especially when encountering floods or extreme weather, the safety risks increase.

[0008] In view of the above challenges, there is an urgent need for a more efficient, economical and environmentally friendly method to ensure the rapid construction of the tower crane foundation, while meeting the requirements for the safe operation of the tower crane in the water environment. Content of the Utility Model

[0009] The purpose of the utility model is to provide an underwater foundation for a tower crane to solve the problems raised in the above background technique.

[0010] The technical solution of the present utility model is: an underwater foundation for a tower crane, including a tower crane foundation, where the upper end of the tower crane foundation is provided with a steel casing, the lower end of the steel casing is connected to the upper end of the tower crane foundation through bolts, and a concrete anti-camber is fitted on the side of the lower end of the steel casing. The concrete anti-camber is arranged at the upper end of the tower crane foundation. At the same time, a support assembly and a pumping assembly are arranged inside the steel casing. The support assembly is used to support the steel casing, and the pumping assembly is used to extract the seepage water inside the steel casing.

[0011] Furthermore, the support assembly includes foundation standard sections, longitudinal stiffening partitions, and transverse stiffening partitions. There are multiple foundation standard sections, longitudinal stiffening partitions, and transverse stiffening partitions. At the same time, multiple foundation standard sections are evenly arranged in the middle inside the steel casing, and multiple longitudinal stiffening partitions and transverse stiffening partitions are arranged crosswise with each other, and multiple longitudinal stiffening partitions and transverse stiffening partitions are all distributed outside the foundation standard sections.

[0012] Furthermore, each longitudinal stiffening partition and transverse stiffening partition includes multiple grids. Multiple grids are arranged crosswise, and multiple grids cross to form a grid. At the same time, a ventilation hole is arranged inside the grid located in the middle.

[0013] Furthermore, the shape of the grid includes but is not limited to square, rhombus, and hexagon.

[0014] Furthermore, the size and thickness of the grid are specifically:

[0015]

[0016] Where: L opt is the side length of the grid, V is the volume to be supported, t is the thickness of the grid, σ allow is the allowable stress of the grid material, M is the maximum bending moment on the cross-section of the grid, and b is the width of the grid.

[0017] Furthermore, the pumping assembly includes:

[0018] A water pump module for extracting the accumulated water inside the steel casing;

[0019] A control module for controlling the start and stop of the water pump module;

[0020] A detection module for obtaining the water level information inside the steel casing and the water delivery volume of the water pump module.

[0021] Furthermore, the detection module includes:

[0022] A water level sensor for obtaining the water level information inside the steel casing;

[0023] A flow sensor for monitoring the water delivery volume of the water pump module.

[0024] The present utility model provides a tower crane underwater foundation through improvement. Compared with the prior art, it has the following improvements and advantages:

[0025] First: Through the combined use of the foundation standard section, longitudinal stiffening partitions, and transverse stiffening partitions, the present utility model significantly improves the structural stability and load-bearing capacity of the steel casing, ensures the stable operation of the tower crane in the underwater environment. At the same time, the concrete anti-camber set on the side of the lower end of the steel casing effectively resists water pressure and soil pressure, thereby reducing the risk of water penetration and further ensuring the watertightness and stability of the tower crane foundation;

[0026] Second: The automatic control module of the pumping assembly of the present utility model can automatically start and stop the water pump according to the data of the water level sensor, reducing manual intervention and improving work efficiency and system reliability;

[0027] Third: The design of the grid-shaped stiffening partition of the present utility model not only enhances the structural strength, but also improves the internal ventilation conditions through ventilation holes. At the same time, it effectively drains accumulated water in cooperation with the pumping assembly, reducing the corrosion effect of the underwater environment on the equipment. Description of the Drawings

[0028] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0029] Figure 1 is a schematic structural diagram of the tower crane underwater foundation of the present utility model;

[0030] Figure 2 is a schematic structural diagram of the stiffening partition of the present utility model;

[0031] Description of the Reference Numerals in the Drawings:

[0032] 1. Concrete anti-camber; 2. Tower crane foundation; 3. Foundation standard section; 4. Longitudinal stiffening partition; 5. Transverse stiffening partition; 6. Steel casing; 7. Bolt; 8. Mesh; 9. Ventilation hole; 10. Grid. Detailed Embodiment

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does 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 construed as a limitation on the present invention.

[0035] In addition, it should be understood that for the convenience of description, the sizes of the various components shown in the drawings are not drawn in actual proportional relationships. For example, the thickness or width of some layers may be exaggerated relative to other layers.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined or described in one drawing, it will not be necessary to further specifically discuss and describe it in the description of the subsequent drawings.

[0037] Reference Figure 1 and Figure 2 Referring to

[0038] and

[0039] In this embodiment, the support assembly includes foundation standard sections 3, longitudinal stiffening diaphragms 4, and transverse stiffening diaphragms 5. Among them, there are multiple foundation standard sections 3, longitudinal stiffening diaphragms 4, and transverse stiffening diaphragms 5. At the same time, multiple foundation standard sections 3 are evenly arranged in the middle of the inside of the steel casing 6, and multiple longitudinal stiffening diaphragms 4 and transverse stiffening diaphragms 5 are arranged crosswise with each other, and multiple longitudinal stiffening diaphragms 4 and transverse stiffening diaphragms 5 are all distributed outside the foundation standard sections 3.

[0040] Specifically, as the main support structure, multiple basic standard sections 3 are evenly distributed inside the steel casing 6, and the size and shape of each basic standard section 3 are customized according to the load requirements of the tower crane and the diameter of the steel casing 6 to ensure the stability of the tower crane in the underwater foundation.

[0041] Furthermore, each longitudinal stiffening diaphragm 4 and transverse stiffening diaphragm 5 includes multiple grilles 10. The multiple grilles 10 are arranged crosswise, and a grid 8 is formed by the intersection of the multiple grilles 10. At the same time, a ventilation hole 9 is arranged inside the grid 8 in the middle. That is to say, the arrangement of the longitudinal stiffening diaphragm 4 and the transverse stiffening diaphragm 5 not only increases the overall rigidity of the structure but also improves the internal ventilation and drainage through its grid-like design. That is, the ventilation hole 9 arranged inside the grid 8 in the middle not only promotes air flow but also helps to keep the inside dry and reduces the corrosion risk in the underwater environment. At the same time, grids 8 of various shapes can further optimize the strength of the structure and the material utilization efficiency.

[0042] In this embodiment, the shape of the grid 8 includes but is not limited to square, rhombus, and hexagon. At the same time, the size and thickness of the grid 8 are specifically:

[0043]

[0044] Where: L opt is the side length of the grid, V is the volume to be supported, t is the thickness of the grille, σ allow is the allowable stress of the grille material, M is the maximum bending moment on the cross-section of the grille, and b is the width of the grille.

[0045] In this embodiment, the pumping assembly includes a water pump module, a control module, and a detection module. The water pump module is used to pump out the accumulated water inside the steel casing 6. The control module is used to control the start and stop of the water pump module. The detection module is used to obtain the water level information inside the steel casing 6 and the water delivery volume of the water pump module. Furthermore, the detection module includes a water level sensor and a flow sensor. The water level sensor is used to obtain the water level information inside the steel casing 6, and the flow sensor is used to monitor the water delivery volume of the water pump module.

[0046] Specifically, a plurality of water level sensors are installed at different heights inside the steel casing 6 for real-time monitoring of water level changes. A flow sensor is installed on the outlet pipeline of the water pump module to monitor the water delivery volume of the water pump module and ensure that the water pump module operates under the best working conditions to avoid idling or overloading. At the same time, the pump module, the control module and the detection module should be connected through a waterproof cable to ensure the safety and stability of the electrical connection. Further, the control module should have an automatic control function, be able to receive signals from the detection module, and automatically control the start and stop of the water pump module. The control module should use a microprocessor or a PLC as the core to ensure the accuracy and reliability of the control.

[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater tower crane foundation, comprising a tower crane foundation (2), characterized in that: A steel casing (6) is arranged at the upper end of the tower crane foundation (2), and the lower end of the steel casing (6) is connected to the upper end of the tower crane foundation (2) by bolts (7), and a concrete counter-slope (1) is arranged on the side of the lower end of the steel casing (6), and the concrete counter-slope (1) is arranged at the upper end of the tower crane foundation (2). At the same time, a support component and a pumping component are arranged inside the steel casing (6), and the support component is used to support the steel casing (6), and the pumping component is used to extract leaking water inside the steel casing (6).

2. The underwater foundation of a tower crane according to claim 1, characterized in that: The support assembly comprises a basic standard section (3), a longitudinal stiffening partition (4) and a transverse stiffening partition (5), wherein the basic standard section (3), the longitudinal stiffening partition (4) and the transverse stiffening partition (5) are all provided in plurality, and the plurality of the basic standard sections (3) are evenly arranged in the middle of the interior of the steel casing (6), the plurality of the longitudinal stiffening partitions (4) and the transverse stiffening partitions (5) are arranged crosswise with each other, and the plurality of the longitudinal stiffening partitions (4) and the transverse stiffening partitions (5) are distributed outside the basic standard section (3).

3. The underwater foundation of a tower crane according to claim 2, characterized in that: Each of the longitudinal stiffening partitions (4) and transverse stiffening partitions (5) comprises a plurality of grilles (10), the plurality of grilles (10) are arranged crosswise, and the plurality of grilles (10) are crossed to form a grid (8), and ventilation holes (9) are arranged inside the grid (8) located in the middle.

4. The underwater foundation of a tower crane according to claim 3, characterized in that: The shape of the grid (8) includes but is not limited to a square, a rhombus and a hexagon.

5. The underwater foundation of a tower crane according to claim 3 or 4, characterized in that: The size and thickness of the grid (8) are specifically: Where: L opt is the side length of the grid, V is the volume to be supported, t is the thickness of the grid, σ allow is the allowable stress of the grid material, M is the maximum bending moment of the grid cross section, and b is the grid width.

6. The underwater foundation of a tower crane according to claim 1, characterized in that: The pumping assembly comprises: A water pump module, used for extracting the accumulated water inside the steel casing (6); A control module, used to control the start and stop of the water pump module; The detection module is used to obtain water level information inside the steel casing (6) and the water delivery volume of the water pump module.

7. The underwater foundation of a tower crane according to claim 6, characterized in that: The detection module includes: A water level sensor, used for obtaining water level information inside the steel casing (6); The flow sensor is used to monitor the water delivery volume of the water pump module.

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