A double-layer honeycomb caisson foundation pier structure installed integrally on water

Abstract

The present invention is a double-layer honeycomb caisson foundation pier structure installed as a whole on water, comprising a lower honeycomb caisson, an upper honeycomb caisson, and several concrete cylinders; the bottoms of the several concrete cylinders are fixed to the bottom plate of the lower honeycomb caisson, the upper honeycomb caisson is slidably mounted on the several concrete cylinders, and the tops of the several concrete cylinders are fixed with concrete beams; the structure also includes several steel hoop bracket limit assemblies, which are mounted on the concrete cylinders, and several steel hoop bracket limit assemblies are distributed at the lower and upper ends of the upper honeycomb caisson. The present invention is easy to install and float as a whole, convenient to transport, and simple to construct, and has excellent practical value. In particular, its feasibility and cost-effectiveness are particularly prominent under relatively harsh transportation and construction conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of water bridge pier foundations, and in particular to a double-layer honeycomb caisson foundation bridge pier structure that is integrally installed above water. Background Art

[0002] The construction of sea-crossing bridges typically requires the pre-erecting of offshore steel trestles. When encountering difficulties driving piles in the rock foundation, the construction difficulty and cost increase dramatically. The sheer weight of the piers makes them difficult to hoist as a whole at sea, so a combination of segmented prefabrication and offshore construction is typically employed. However, the prefabrication, transportation, and installation of the concrete foundation structure require large-scale equipment and specialized processes. This is especially true in areas with favorable winds, where strong winds and waves are common year-round, resulting in a short operating window and construction difficulties. Transportation and construction costs are also high. While floating and installing a conventional caisson and pier structure as a single unit shortens the offshore installation period, the structure's high center of gravity makes it prone to capsizing during transportation. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the prior art and provides a double-layer honeycomb caisson foundation bridge pier structure that is integrally installed on water. It is a gravity-based foundation bridge pier structure that is integrally installed and floated, convenient to transport, and simple to construct.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] A double-layer honeycomb caisson foundation bridge pier structure installed above water comprises a lower honeycomb caisson, an upper honeycomb caisson, and a plurality of concrete cylinders; the bottoms of the plurality of concrete cylinders are fixed to the bottom plate of the lower honeycomb caisson, the upper honeycomb caisson is slidably mounted on the plurality of concrete cylinders, and concrete beams are fixed to the tops of the plurality of concrete cylinders;

[0006] It also includes several steel hoop bracket limiting assemblies, which are installed on the concrete column and distributed at the lower end and upper end of the upper honeycomb caisson.

[0007] The lower honeycomb caisson is a cavity structure surrounded by a lower honeycomb caisson bottom plate, a lower honeycomb caisson top plate and a lower honeycomb caisson outer wall. A number of lower honeycomb caisson partition walls are provided inside the lower honeycomb caisson. The lower honeycomb caisson partition walls divide the inner cavity of the lower honeycomb caisson into a number of compartments and the compartments are distributed in a honeycomb pattern. A number of concrete cylinders are evenly distributed in the compartments of the lower honeycomb caisson and fixed to the lower honeycomb caisson bottom plate. A concrete consolidation filling layer is provided between the outer wall of the concrete cylinder and the corresponding compartment.

[0008] The upper honeycomb caisson is a cavity structure surrounded by an upper honeycomb caisson bottom plate, an upper honeycomb caisson top plate and an upper honeycomb caisson outer wall. A number of upper honeycomb caisson partition walls are provided inside the upper honeycomb caisson. The upper honeycomb caisson partition walls divide the inner cavity of the upper honeycomb caisson into a number of compartments, and the compartments are distributed in a honeycomb pattern. A number of concrete cylinders are evenly slid through the compartments of the upper honeycomb caisson, and a concrete core is provided between the outer walls of the concrete cylinders and the corresponding compartments.

[0009] Each steel bracket bracket limiting assembly includes two semicircular steel bracket brackets mounted on a concrete column. Both ends of each semicircular steel bracket bracket are provided with connecting ear plates, and the corresponding connecting ear plates of the two semicircular steel bracket brackets are detachably connected by bolts.

[0010] The interior of the concrete cylinder is a hollow structure, the outer diameter of the concrete cylinder is 2-4m, and the wall thickness is 0.3-0.6m.

[0011] The cells of the lower honeycomb caisson and the upper honeycomb caisson are both regular hexagonal structures with a side length of 2-4m.

[0012] The circumscribed circle diameter of the lower honeycomb caisson and the upper honeycomb caisson is 26m, and the height is 4-6m; the thickness of the bottom plate of the lower honeycomb caisson is 0.5m, and the thickness of the top plate and outer wall of the lower honeycomb caisson is 0.4m; the thickness of the bottom plate, top plate and outer wall of the upper honeycomb caisson is 0.4m.

[0013] The thickness of the lower honeycomb caisson partition wall and the upper honeycomb caisson partition wall is 0.25m.

[0014] The concrete beam height is 1.5-3m and the span is 10-25m.

[0015] The number of concrete cylinders is two.

[0016] The beneficial effects of the present invention are: the present invention is easy to install and float as a whole, convenient to transport, simple to construct, and has very good practical value. Especially under conditions where transportation and construction conditions are relatively harsh, the feasibility and economy are particularly prominent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 for Figure 1 Cross-section of the middle AA;

[0019] Figure 3 for Figure 1 Enlarged view of middle B;

[0020] In the figure: 1-lower honeycomb caisson; 2-upper honeycomb caisson; 3-concrete column; 4-concrete beam; 5-steel hoop bracket limit assembly; 6-gravel leveling base bed;

[0021] 11-bottom plate of lower honeycomb caisson; 12-top plate of lower honeycomb caisson; 13-exterior wall of lower honeycomb caisson; 14-partition wall of lower honeycomb caisson; 15-concrete consolidation filling layer;

[0022] 21- Upper honeycomb caisson bottom plate; 22- Upper honeycomb caisson top plate; 23- Upper honeycomb caisson exterior wall; 24- Upper honeycomb caisson partition wall; 25- Concrete core;

[0023] 51-semicircular steel bracket clamp; 52-connecting ear plate; 53-bolt;

[0024] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are all in a very simplified form and are not in exact proportions. They are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The present invention will be further described below with reference to the accompanying drawings and examples:

[0029] A double-layer honeycomb caisson foundation pier structure installed on water as a whole, such as Figures 1 to 3 As shown, it includes a lower honeycomb caisson 1, an upper honeycomb caisson 2, a plurality of concrete columns 3, a concrete beam 4 and a plurality of steel hoop bracket limit assemblies 5.

[0030] The bottom of the present invention adopts a double-layer concrete honeycomb caisson as the basic structure, and is provided with a plurality of hollow concrete cylinders 3 embedded in the lower honeycomb caisson 1. The interior of the concrete cylinder 3 is a hollow structure, the outer diameter of the concrete cylinder 3 is 2-4m, and the wall thickness is 0.3-0.6m. In this embodiment, the number of concrete cylinders 3 is two, with an outer diameter of 3m and a wall thickness of 0.5m. The upper honeycomb caisson 2 is provided with two circular holes, which can slide arbitrarily on the concrete cylinder 3, and can also be locked to the concrete cylinder 3 by a locking device, namely a steel hoop bracket limit assembly 5. A concrete beam 4 is provided at the upper end of the concrete cylinder 3 for placing bridge bearings. The bottom of the lower honeycomb caisson 1 is installed on a gravel leveling base bed 6.

[0031] The lower honeycomb caisson 1 is a cavity structure surrounded by a lower honeycomb caisson bottom plate 11, a lower honeycomb caisson top plate 12 and a lower honeycomb caisson outer wall 13. A plurality of lower honeycomb caisson partition walls 14 are provided inside the lower honeycomb caisson 1. The lower honeycomb caisson partition walls 14 divide the inner cavity of the lower honeycomb caisson 1 into a plurality of compartments and the compartments are distributed in a honeycomb pattern. A plurality of concrete cylinders 3 are evenly distributed in the compartments of the lower honeycomb caisson 1 and fixed to the lower honeycomb caisson bottom plate 11. A concrete consolidation filling layer 15 is provided between the outer wall of the concrete cylinder 3 and the corresponding compartment.

[0032] The upper honeycomb caisson 2 is a cavity structure surrounded by an upper honeycomb caisson bottom plate 21, an upper honeycomb caisson top plate 22 and an upper honeycomb caisson outer wall 23. A plurality of upper honeycomb caisson partition walls 24 are provided inside the upper honeycomb caisson 2. The upper honeycomb caisson partition walls 24 divide the inner cavity of the upper honeycomb caisson 2 into a plurality of compartments, and the compartments are distributed in a honeycomb pattern. A plurality of concrete cylinders 3 are evenly slid through the compartments of the upper honeycomb caisson 2, and a concrete core 25 is provided between the outer wall of the concrete cylinder 3 and the corresponding compartment.

[0033] The cells of the lower honeycomb caisson 1 and the upper honeycomb caisson 2 are both regular hexagonal structures with a side length of 2-4 m.

[0034] The upper honeycomb caisson 2 can be secured to the concrete cylinder 3 via a locking device. The locking device is not fixed in style, as long as it can achieve both locking and removal functions. In this embodiment, several steel hoop bracket stopper assemblies 5 are used to achieve this. The steel hoop bracket stopper assemblies 5 are mounted on the concrete cylinder 3 and are distributed at the lower and upper ends of the upper honeycomb caisson 2.

[0035] Each steel bracket bracket limiting assembly 5 includes two semicircular steel bracket brackets 51 arranged on the concrete column 3. Both ends of each semicircular steel bracket bracket 51 are provided with connecting ear plates 52. The connecting ear plates 52 corresponding to the two semicircular steel bracket brackets 51 are detachably connected by bolts 53.

[0036] The circumscribed circle diameter of the lower honeycomb caisson 1 and the upper honeycomb caisson 2 is 26m, and the height is 4-6m. In this embodiment, the height is 4m; the thickness of the lower honeycomb caisson bottom plate 11 is 0.5m, and the thickness of the lower honeycomb caisson top plate 12 and the lower honeycomb caisson outer wall 13 is 0.4m; the thickness of the upper honeycomb caisson bottom plate 21, the upper honeycomb caisson top plate 22, and the upper honeycomb caisson outer wall 23 is 0.4m.

[0037] The thickness of the lower honeycomb caisson partition wall 14 and the upper honeycomb caisson partition wall 24 is 0.25 m.

[0038] The concrete cross beam 4 has a height of 1.5-3 m and a span of 10-25 m. In this embodiment, the longitudinal section of the concrete cross beam is a square structure with a size of 3 m×3 m.

[0039] The double-layer split concrete honeycomb caisson foundation structure of the present invention can be prefabricated in layers, reducing the maximum weight of a single component and facilitating hoisting during prefabrication. In actual operation, the structure is floated as a whole. By adjusting the position of the upper honeycomb caisson 2, the buoyancy center of the structure is adjusted to ensure floating stability. When the structure is in place for installation, the steel hoop bracket limiter assembly 5 is removed, and the upper honeycomb caisson 2 is filled with water and sunk to be placed on top of the lower honeycomb caisson 1. The lower honeycomb caisson 1 is used to increase buoyancy during floating transportation and to lower the center of gravity of the structure by adjusting its draft. After being in place, the structure is installed on a gravel-leveled base bed 6.

[0040] The present invention provides a solution that is easy to install and float as a whole, convenient to transport, and simple to construct. The combined application of a bridge erection machine and the gravity-type bridge pier can eliminate temporary construction structures such as temporary offshore construction trestles, and has very good practical value. In particular, the feasibility and economy of the present invention are particularly prominent under conditions where transportation and construction conditions are relatively harsh.

[0041] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A double-layer honeycomb caisson foundation pier structure installed on water, characterized in that: The invention comprises a lower honeycomb caisson (1), an upper honeycomb caisson (2) and a plurality of concrete cylinders (3); the bottoms of the plurality of concrete cylinders (3) are fixed on the bottom plate of the lower honeycomb caisson (1); the upper honeycomb caisson (2) is slidably mounted on the plurality of concrete cylinders (3); and concrete crossbeams (4) are fixed on the tops of the plurality of concrete cylinders (3); The lower honeycomb caisson (1) is a cavity structure surrounded by a lower honeycomb caisson bottom plate (11), a lower honeycomb caisson top plate (12) and a lower honeycomb caisson outer wall (13). A plurality of lower honeycomb caisson partition walls (14) are provided inside the lower honeycomb caisson (1). The lower honeycomb caisson partition walls (14) divide the inner cavity of the lower honeycomb caisson (1) into a plurality of cells, and the cells are distributed in a honeycomb pattern. A plurality of concrete cylinders (3) are evenly arranged in the cells of the lower honeycomb caisson (1) and fixedly connected to the lower honeycomb caisson bottom plate (11). A concrete consolidation filling layer (15) is provided between the outer wall of the concrete cylinder (3) and the corresponding cell. The upper honeycomb caisson (2) is a cavity structure surrounded by an upper honeycomb caisson bottom plate (21), an upper honeycomb caisson top plate (22) and an upper honeycomb caisson outer wall (23). A plurality of upper honeycomb caisson partition walls (24) are provided inside the upper honeycomb caisson (2). The upper honeycomb caisson partition walls (24) divide the inner cavity of the upper honeycomb caisson (2) into a plurality of cells, and the cells are distributed in a honeycomb pattern. A plurality of concrete cylinders (3) are evenly slidably arranged in the cells of the upper honeycomb caisson (2). A concrete inner core (25) is provided between the outer wall of the concrete cylinder (3) and the corresponding cell. It also includes a plurality of steel hoop bracket limiting assemblies (5), which are installed on the concrete column (3). The plurality of steel hoop bracket limiting assemblies (5) are distributed at the lower end and the upper end of the upper honeycomb caisson (2).

2. The double-layer honeycomb caisson foundation pier structure installed integrally on water according to claim 1, characterized in that: Each steel bracket hoop and corbel limiting assembly (5) comprises two semicircular steel bracket hoop (51) mounted on a concrete column (3), and each semicircular steel bracket hoop (51) is provided with connecting ear plates (52) at both ends, and the connecting ear plates (52) corresponding to the two semicircular steel bracket hoop (51) are detachably connected via bolts (53).

3. The double-layer honeycomb caisson foundation pier structure installed integrally on water according to claim 2, characterized in that: The interior of the concrete cylinder (3) is a hollow structure, the outer diameter of the concrete cylinder (3) is 2-4m, and the wall thickness is 0.3-0.6m.

4. The double-layer honeycomb caisson foundation pier structure installed integrally on water according to claim 3, characterized in that: The cells of the lower honeycomb caisson (1) and the upper honeycomb caisson (2) are both regular hexagonal structures, and the length of the regular hexagonal side is 2-4m.

5. The double-layer honeycomb caisson foundation pier structure installed integrally on water according to claim 4, characterized in that: The diameter of the circumscribed circle of the lower honeycomb caisson (1) and the upper honeycomb caisson (2) is 26m, and the height is 4-6m; the thickness of the bottom plate (11) of the lower honeycomb caisson is 0.5m, and the thickness of the top plate (12) and the outer wall (13) of the lower honeycomb caisson is 0.4m; the thickness of the bottom plate (21), the top plate (22) and the outer wall (23) of the upper honeycomb caisson is 0.4m.

6. The double-layer honeycomb caisson foundation pier structure installed integrally on water according to claim 5, characterized in that: The thickness of the lower honeycomb caisson partition wall (14) and the upper honeycomb caisson partition wall (24) is 0.25m.

7. The double-layer honeycomb caisson foundation pier structure installed integrally on water according to claim 6, characterized in that: The concrete beam (4) has a beam height of 1.5-3m and a span of 10-25m.

8. The double-layer honeycomb caisson foundation pier structure installed integrally on water according to claim 7, characterized in that: The number of concrete cylinders (3) is two.

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