CN212983627U

CN212983627U - Steel hanging box

Info

Publication number: CN212983627U
Application number: CN202021527788.9U
Authority: CN
Inventors: 吴健; 温东昌; 李鸿文; 沈倩; 魏鹏程; 王金梁; 向韬; 廖盛荣
Original assignee: Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge South China Engineering Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-16
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to a steel hanging box, include the steel hanging box back cover bottom plate that constitutes by prefabricated reinforced concrete board, enclose and locate the curb plate at back cover bottom plate outside border, and will back cover bottom plate connects the bearing structure on fixed component. The bottom plate is of a prefabricated reinforced concrete structure, has better rigidity and stability, reduces the thickness of the bottom sealing plate of the steel hanging box, further reduces the thickness of a lifting system of the bottom plate of the steel hanging box, reduces the thickness of the bottom sealing plate, further reduces the dredging depth of the plastic silt layer in deep water, reduces the excavation depth of the plastic silt layer and reduces the construction workload when the construction quality is ensured.

Description

Steel hanging box

Technical Field

The utility model relates to a bridge building technical field, concretely relates to steel hanging box.

Background

The deepwater bearing platform is an important support for the infrastructure and the bottom of the construction engineering such as the overwater highway, the bridge and the like, and plays an important role in the stability of the building. In the process of manufacturing the deepwater bearing platform, the steel casing is used for constructing a pile foundation, the outer wall of the steel casing is sleeved with the steel hanging box, the bottom plate of the steel hanging box is sleeved on the outer wall of the steel casing, the periphery of the bottom plate is provided with the side plates, the steel hanging box of a water blocking structure is formed, and the deepwater bearing platform is conveniently constructed by injecting concrete into the steel hanging box. In the process of processing the deepwater bearing platform, a bottom sealing concrete is usually processed firstly, namely a concrete sealing layer is manufactured at the bottom of the steel hanging box in water for sealing the bottom of the steel hanging box. However, the deep water bearing platform is located at a deep position, the mud flow plasticity at the deep water is strong, and the bottom sealing concrete is thick to meet the requirement of bearing platform construction, so that the thickness of a foundation pit for manufacturing the bearing platform, which needs dredging, is deep, and the thickness of a steel hanging box lifting system is high. In addition, the pressure difference of the water heads inside and outside the steel hanging box is large, so that the bottom sealing plate of the steel hanging box needs to bear large pressure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problems, particularly, the silt flow plasticity at the deep water is stronger, and in order to meet the requirements of bearing platform construction, the bottom sealing concrete is thicker, the dredging thickness is deeper, the thickness of a steel hanging box lifting system is higher, and the bottom sealing plate of the steel hanging box needs to bear larger pressure, the following technical scheme is specially provided:

the embodiment of the application provides a steel hanging box, include the steel hanging box back cover bottom plate that constitutes by prefabricated reinforced concrete board, enclose and locate the curb plate of back cover bottom plate outside border, and will back cover bottom plate connects the bearing structure on fixed component.

Optionally, one end of the supporting structure is fixedly connected in the back cover bottom plate, and the other end of the supporting structure is fixedly connected at the top edge of the fixing member.

Optionally, the top end of the fixing member is provided with a fixing member for fixing the supporting structure to the fixing member.

Optionally, the fixing member is a frame shape, and the top end of the supporting structure penetrates through the hollow interior of the fixing member to be connected with the fixing member.

Optionally, a connector is further included for connecting the fixing member and the back cover bottom plate.

Optionally, the connecting member is a shear key, one end of the shear key is welded to the fixing member, and the other end of the shear key is fixedly connected in the back cover bottom plate.

Optionally, the side plate is fixedly connected with the back cover bottom plate, and a water stopping article is arranged at the joint of the side plate and the back cover bottom plate.

Compared with the prior art, the utility model, following beneficial effect has:

the steel hanging box provided by the embodiment of the application comprises a steel hanging box back cover bottom plate formed by prefabricated reinforced concrete plates, side plates arranged on the outer edge of the back cover bottom plate in a surrounding mode, and a supporting structure for connecting the back cover bottom plate to a fixing component. The bottom plate is of a prefabricated reinforced concrete structure, has better rigidity and stability, reduces the thickness of the bottom sealing plate of the steel hanging box, further reduces the thickness of a lifting system of the bottom plate of the steel hanging box and the thickness of the bottom sealing plate, and further reduces the dredging depth of the plastic flowing sludge layer in deep water, thereby reducing the excavation depth of the plastic flowing sludge layer and reducing the construction workload when ensuring the construction quality.

The steel hanging box that this application embodiment provided is equipped with bearing structure between back cover bottom plate and the steel protects a section of thick bamboo, and this bearing structure is for drawing the depression bar, and after steel hanging box drainage, the inside and outside flood peak of steel hanging box leads to the back cover bottom plate to need bear great water pressure, through setting up bearing structure, with partial water pressure dispersion to the steel protect a section of thick bamboo on, and then guaranteed the safety of back cover bottom plate structure for the back cover bottom plate has better stability.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a part of the structure of the steel suspension box of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, but do not preclude the presence or addition of one or more other features, integers, steps, operations, and/or groups thereof.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The embodiment of the application provides a steel hanging box, is mainly applied to the steel hanging box structure that has plastic silt layer waters of flowing. As shown in fig. 1, fig. 1 is a schematic view of a partial structure of the steel suspension box of the present invention, which mainly shows a partial structure of the steel suspension box, and other partial structures can be obtained through the structure shown in this part, and the schematic view of the steel suspension box structure with a bearing platform is shown in the figure, and the shaded portion is the structure of the bearing platform. The embodiment of the application provides a steel hanging box, including the steel hanging box back cover bottom plate 1 that constitutes by prefabricated reinforced concrete board, enclose curb plate 2 of locating 1 outer fringe of back cover bottom plate to and with back cover bottom plate 1 connection support structure 4 on fixed component 3. Conventionally, the underwater bottom-sealing concrete is plain concrete, has low rigidity, and has high water pressure in a water area with a flowing plastic sludge layer, so that the bottom sealing plate of the steel suspension box needs to bear high water pressure, and particularly, the steel suspension box mainly bears pressure from water before a bearing platform is manufactured.

In order to meet the requirement of bearing platform construction, a thicker concrete back cover needs to be manufactured, for example, more than 2m, so that when a foundation pit of a bearing platform is excavated, a deeper foundation pit needs to be excavated, the thickness of dredging is higher, the construction workload is increased, the construction efficiency is reduced, and a lifting system of a steel hanging box also needs to bear heavier gravity from a bottom plate of the back cover of the steel hanging box. Because the excavation depth of the foundation pit is increased, silt flows back easily, and the stability of the foundation pit is not high enough.

In this application, adopt prefabricated reinforced concrete board to constitute the back cover bottom plate 1 of steel hanging box, owing to added the steel bar component in back cover bottom plate 1, and then increased back cover bottom plate 1's rigidity, can bear great pressure, prefabricated reinforced concrete board constitutes 1 rigidity of back cover bottom plate of steel hanging box simultaneously is sufficient for back cover bottom plate 1's thickness has reduced, further can reduce the thickness that 1 lifting system of steel hanging box back cover bottom plate. Because the thickness of the bottom sealing bottom plate 1 is reduced, the required excavation depth of the bearing platform foundation pit is reduced, the excavation depth of the flow plasticity silt layer is reduced, and the stability of the flow plasticity silt after excavation and the stability of the foundation pit are improved.

In the embodiment that this application provided, the steel hanging box is still including enclosing curb plate 2 of locating back cover bottom plate 1 outside border, and curb plate 2 and back cover bottom plate 1 constitute the steel hanging box that has the stagnant water structure jointly, are convenient for pour the concrete in anhydrous steel hanging box, constitute the construction cushion cap.

Because before pouring the cushion cap, need discharge the inside water of steel hanging box, among the drainage process, there is the flood peak difference inside and outside the steel hanging box, causes reinforced concrete slab's back cover bottom plate 1 to need bear great water pressure, however reinforced concrete slab's back cover bottom plate 1 thickness is thinner, makes reinforced concrete slab's back cover bottom plate 1 not stable enough under the water pressure effect, leads to its structure also not safe enough. Therefore, the supporting structure 4 is arranged on the bottom sealing plate 1 of the steel hanging box, the bottom sealing plate 1 of the steel hanging box is connected to the fixing component 3, partial water pressure is dispersed to the fixing component 3 through the supporting structure, and stability and safety of the bottom sealing plate 1 are guaranteed. In the embodiment provided in the present application, the fixing member 3 is a steel casing.

Optionally, in order to ensure the stability and safety of the back cover bottom plate 1, one end of the supporting structure 4 is fixedly connected in the back cover bottom plate 1, and the other end of the supporting structure 4 is fixedly connected at the top edge of the fixing member 3. When the water pressure that fixed connection had avoided back cover bottom plate 1 to bear was inhomogeneous, back cover bottom plate 1 still can be located fixed position department steadily, avoids back cover bottom plate 1 to appear rocking, guarantees that the water pressure can transmit to the protection bucket in time.

Optionally, the top end of the fixing member 3 is provided with a fixing piece 31 for fixing the support structure 4 to the fixing member 3. The fixing member 31 is frame-shaped, and the top end of the supporting structure 4 passes through the hollow interior of the fixing member 31 to be connected with the fixing member 3. In order to firmly connect the back cover bottom plate 1 to the fixing member 3, by providing the frame-shaped fixing member 31, when the supporting structure passes through the frame of the fixing member 31, the frame of the fixing member 31 can transmit an acting force opposite to the water pressure to the supporting structure 4, so that the supporting structure 4 can be firmly pressed on the fixing member, and a part of the water pressure is offset, thereby ensuring the stability and safety of the whole back cover bottom plate 1.

Optionally, in order to ensure that the back cover bottom plate 1 is located at a designated position, a connecting member 5 for connecting the fixing member 3 and the back cover bottom plate 1 is further included. Optionally, in the embodiments provided in this application, the connecting member is a shear key, one end of the shear key is welded to the fixing member, and the other end of the shear key is fixedly connected in the back cover bottom plate. The connecting piece 5 of the shear key can stably connect the back cover bottom plate 1 to the fixing member 3, and the fixing piece 3 is a steel casing, and the position of the steel casing is fixed, so that the position of the back cover bottom plate 1 is ensured to be a designated position.

Optionally, because curb plate 2 and back cover bottom plate 1 have constituted the steel hanging box that has the stagnant water function jointly, consequently, curb plate 2 and back cover bottom plate 1 fixed connection, wherein curb plate 2 fixed connection is on the top border of back cover bottom plate 1, and curb plate 2 is equipped with the stagnant water article with back cover bottom plate 1 junction, prevents that water from permeating to the steel hanging box in, correspondingly, the stagnant water article includes one or more in rubber pad, sand bed, the concrete layer.

In conclusion, the steel hanging box that this application provided includes following beneficial effect:

the steel hanging box provided by the embodiment of the application comprises a prefabricated reinforced concrete structure, has better rigidity and stability, reduces the thickness of the bottom sealing plate of the steel hanging box, further reduces the thickness of a lifting system of the bottom plate of the steel hanging box, reduces the thickness of the bottom sealing plate, further reduces the dredging depth of a flowing plastic sludge layer in deep water, reduces the excavation depth of the flowing plastic sludge layer, and reduces the construction workload when the construction quality is ensured.

The above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A steel hanging box is characterized by comprising a steel hanging box back cover bottom plate formed by prefabricated reinforced concrete plates, side plates arranged on the outer edge of the back cover bottom plate in a surrounding mode, and a supporting structure for connecting the back cover bottom plate to a fixing component.

2. The steel suspension box of claim 1, wherein one end of the support structure is fixedly connected in the back cover bottom plate, and the other end of the support structure is fixedly connected at the top edge of the fixing member.

3. The steel suspension box of claim 2, wherein the top end of the fixing member is provided with a fixing member for fixing the support structure to the fixing member.

4. The steel drop box of claim 3, wherein the fixture is frame-shaped, and the support structure top end is connected to the fixture through a hollow interior of the fixture.

5. The steel drop box of claim 1, further comprising a connector connecting the securing member and the back floor.

6. The steel suspension box of claim 5, wherein the connecting member is a shear key, one end of the shear key is welded on the fixing member, and the other end of the shear key is fixedly connected in the bottom sealing plate.

7. The steel suspension box of claim 1, wherein the side plate is fixedly connected with the bottom sealing plate, and a water-stopping object is arranged at the joint of the side plate and the bottom sealing plate.