CN217460606U - Concrete support envelope structure capable of applying prestress - Google Patents
Concrete support envelope structure capable of applying prestress Download PDFInfo
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- CN217460606U CN217460606U CN202221105039.6U CN202221105039U CN217460606U CN 217460606 U CN217460606 U CN 217460606U CN 202221105039 U CN202221105039 U CN 202221105039U CN 217460606 U CN217460606 U CN 217460606U
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Abstract
The utility model discloses a can apply prestressed concrete support envelope, include: the enclosure device comprises a vertical support component and a horizontal support component connected with the vertical support component, and the vertical support component is positioned on the inner wall of the foundation pit; the loading device is fixed on the horizontal support assembly, and applies prestress to the horizontal support assembly so as to deform the horizontal support assembly; through fixing loading device on horizontal supporting component, utilize loading device to exert prestressing force to the horizontal supporting component of loading device both sides for horizontal supporting component atress deformation in advance, and then increase horizontal supporting component's supporting role, restrain foundation ditch pithead wall convergence deformation, reach the mesh that reduces foundation ditch lateral wall whole deformation, have higher practical value and economic value.
Description
Technical Field
The utility model relates to a can apply concrete support envelope of prestressing force belongs to excavation supporting technical field.
Background
The foundation pit supporting structure is a temporary structure used for providing an operation space for underground structure construction, and when a foundation pit exceeds a certain depth, a horizontal support needs to be arranged for resisting soil pressure generated by surrounding soil. The commonly used support is steel support, but steel support nodal connection is comparatively complicated, and along with the excavation depth of foundation ditch is more and more dark, the surrounding environment is more and more complicated, also becomes stricter to the deformation requirement of foundation ditch. In addition, the integrity of the steel support is poor, the construction quality control difficulty is high, and the process requirement is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can apply concrete support envelope of prestressing force can solve traditional steel shotcrete because the nodal connection is comparatively complicated, and is strict to the deformation requirement of foundation ditch, and the wholeness is relatively poor, the big problem of the construction quality control degree of difficulty.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a prestressed concrete support envelope comprising:
the enclosure device comprises a vertical support assembly and a horizontal support assembly connected with the vertical support assembly, and the vertical support assembly is positioned on the inner wall of the foundation pit;
and the loading device is fixed on the horizontal support assembly, and applies prestress to the horizontal support assembly so as to deform the horizontal support assembly.
Furthermore, the vertical support component comprises a plurality of groups of vertical support groups, each group of vertical support group comprises two vertical support columns, and the two vertical support columns are respectively positioned on the inner wall of the foundation pit which is oppositely arranged.
Furthermore, the horizontal support assembly comprises a plurality of groups of horizontal support groups, each group of horizontal support group comprises two horizontal support columns, one end of each horizontal support column is connected with one group of vertical support groups, and the other end of each horizontal support column is connected with two sides of the loading device respectively.
Further, the loading device is a load box.
Furthermore, the load box comprises an oil cylinder, an oil pipe at least partially positioned in the oil cylinder and a jack positioned at the top of the oil pipe, anchoring steel bars are arranged on the peripheral wall of the oil cylinder, and the load box is connected with the horizontal support column through the anchoring steel bars.
Further, the sectional area of the load box is equal to that of the horizontal support column.
Further, the load box still includes the reinforcing bar, the reinforcing bar is connected respectively the hydro-cylinder with the horizontal support post.
Further, the reinforcing steel bars have a plurality of roots, and the reinforcing steel bars are respectively located on two sides of the oil cylinder and on the same side of the oil cylinder, the reinforcing steel bars are in a horn shape.
Further, the load box still includes upper subsection, lower subsection and is located the separation portion between upper subsection and the lower subsection, the separation portion is filled with grout.
Furthermore, the enclosure device further comprises an enclosing purlin assembly, and the enclosing purlin assembly is located on the periphery of the foundation pit.
The beneficial effects of the utility model reside in that: the concrete support envelope structure capable of applying prestress comprises an envelope device and a loading device, wherein the envelope device comprises a vertical support assembly and a horizontal support assembly connected with the vertical support assembly, and the loading device is fixed on the horizontal support assembly; through fixing loading device on horizontal supporting component, utilize loading device to exert prestressing force to the horizontal supporting component of loading device both sides for horizontal supporting component atress deformation in advance, and then increase horizontal supporting component's supporting role, restrain foundation ditch pithead wall convergence deformation, reach the mesh that reduces foundation ditch lateral wall whole deformation, have higher practical value and economic value.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a concrete support envelope of the present application;
fig. 2 is a schematic structural diagram of the loading device in fig. 1.
100-concrete support and enclosure structure, 200-foundation pit, 1-enclosure device, 11-vertical support assembly, 111-vertical support group, 1111-vertical support column, 112-upright column pile, 113-lattice column, 12-horizontal support assembly, 121-horizontal support group, 1211-horizontal support column, 13-purlin assembly, 2-loading device, 21-oil cylinder, 22-oil pipe, 23-jack, 24-anchoring steel bar and 25-reinforcing steel bar.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1-2, a preferred embodiment of the present application provides a prestressed concrete support envelope 100, comprising: the enclosure device 1 and the loading device 2. The enclosure device 1 is used for supporting the periphery of the foundation pit 200. The enclosure device 1 comprises a vertical support assembly 11 and a horizontal support assembly 12 connected with the vertical support assembly 11, wherein the vertical support assembly 11 is positioned on the inner wall of the foundation pit 200. The loading device 2 is fixed to the horizontal support member 12 for applying a prestress to the horizontal support member 12 to deform the horizontal support member 12. It should be noted that the prestress value is 0.5-0.8 times of the horizontal supporting force required by the enclosure device 1 under the actual working condition.
The vertical support assembly 11 includes a plurality of vertical support sets 111, each vertical support set 111 includes two vertical support columns 1111, and the two vertical support columns 1111 are respectively located on the inner wall of the foundation pit 200 disposed oppositely.
Optionally, the vertical support assembly 11 further includes a column pile 112 and a lattice column 113 located on the column pile 112, the column pile 112 is a concrete-poured pile, the lattice column 113 is a steel member, and the lattice column 113 is inserted into the column pile 112 to further provide vertical support for the foundation pit 200.
The horizontal supporting assembly 12 includes a plurality of horizontal supporting sets 121, each horizontal supporting set 121 includes two horizontal supporting columns 1211, one end of each horizontal supporting column 1211 is connected to one vertical supporting set 111, and the other end is connected to two sides of the loading device 2. More specifically, the horizontal support columns 1211 have connecting bars (not shown) therein, and the loading device 2 is located between the two horizontal support columns 1211 and tied to the connecting bars on the two horizontal support columns 1211.
The enclosure device 1 further comprises a surrounding purlin assembly 13, and the surrounding purlin assembly 13 is located on the periphery of the foundation pit 200. In this embodiment, the horizontal bracing assemblies 12 have several groups, the groups of horizontal bracing assemblies 12 are respectively located at different heights of the foundation pit 200, and the topmost horizontal bracing assembly 12 is connected to the purlin surrounding assembly 13.
The loading device 2 is a load box. The load box comprises a cylinder 21, an oil pipe 22 at least partially arranged in the cylinder 21 and a jack 23 arranged on the top of the oil pipe 22, anchoring steel bars 24 are arranged on the peripheral wall of the cylinder 21, and the load box is connected with a horizontal support column 1211 through the anchoring steel bars 24.
Optionally, the load box has a cross-sectional area equal to the cross-sectional area of the horizontal support posts 1211, and is configured to provide a finished concrete support envelope 100 with an aesthetically pleasing appearance.
In order to further improve the stability of the connection between the load box and the horizontal support 1211, in one embodiment, the load box further includes reinforcing bars 25, and the reinforcing bars 25 are respectively connected to the oil cylinders 21 and the horizontal support 1211. The reinforcing steel bars 25 are provided with a plurality of reinforcing steel bars 25 which are respectively positioned at two sides of the oil cylinder 21, and the reinforcing steel bars 25 at the same side are in a horn shape.
In addition to the above structure, the load box comprises an upper subsection (not numbered), a lower subsection (not numbered) and a separation section (not numbered) located between the upper subsection and the lower subsection, the separation section being filled with a cement slurry (not numbered).
It should be noted that the structure and the working principle of the load box are the prior art, and this application is not described herein in detail.
The construction steps of the concrete support envelope 100 are: customizing a load box; binding the reinforcing steel bars of the enclosure device 1; installing the load box on the horizontal supporting assembly 12, and pouring the purlin enclosing assembly 13 and the horizontal supporting assembly 12; carrying out prestress construction on the horizontal support component 12 through the load box, and carrying out cement paste pouring on a separation part of the load box; and excavating earthwork, constructing the horizontal support component 12 and the load box layer by layer, carrying out prestress construction until the construction reaches the bottom of the foundation pit 200, and pouring a cushion layer to form the concrete support enclosure structure 100.
In summary, the application provides a concrete support enclosure structure capable of applying prestress, which comprises an enclosure device and a loading device, wherein the enclosure device comprises a vertical support assembly and a horizontal support assembly connected with the vertical support assembly, and the loading device is fixed on the horizontal support assembly; through fixing loading device on horizontal supporting component, utilize loading device to exert prestressing force to the horizontal supporting component of loading device both sides for horizontal supporting component atress deformation in advance, and then increase horizontal supporting component's supporting role, restrain foundation ditch pithead wall convergence deformation, reach the mesh that reduces foundation ditch lateral wall whole deformation, have higher practical value and economic value.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A prestressed concrete support envelope, comprising:
the enclosure device comprises a vertical support assembly and a horizontal support assembly connected with the vertical support assembly, and the vertical support assembly is positioned on the inner wall of the foundation pit;
and the loading device is fixed on the horizontal support assembly, and applies prestress to the horizontal support assembly so as to deform the horizontal support assembly.
2. The prestressed concrete support enclosure of claim 1 wherein the vertical support assemblies comprise a plurality of sets of vertical support members, each set of vertical support members comprising two vertical support columns, the two vertical support columns being positioned on the interior wall of the foundation pit in opposing relationship.
3. A prestressed concrete support envelope as claimed in claim 1, wherein said horizontal support members comprise groups of horizontal support members, each group comprising two horizontal support columns, one of said horizontal support columns being connected to one of said vertical support groups and the other to each side of the loading means.
4. The prestressed concrete support envelope of claim 3, wherein the loading device is a load box.
5. The prestressed concrete support envelope of claim 4, wherein said load box comprises a cylinder, an oil pipe at least partially within said cylinder, and a jack at the top of said oil pipe, said cylinder having anchoring bars on its perimeter wall, said anchoring bars connecting said load box to said horizontal support columns.
6. The prestressed concrete support envelope of claim 4, wherein the load box has a cross-sectional area equal to the cross-sectional area of the horizontal support columns.
7. The prestressed concrete support envelope of claim 5, wherein the load box further includes reinforcing bars connecting the cylinders and the horizontal support columns, respectively.
8. The prestressed concrete support envelope of claim 7, wherein said reinforcing bars are provided in a plurality, said reinforcing bars being located on opposite sides of said cylinder, said reinforcing bars on the same side being flared.
9. The prestressed concrete support envelope of claim 4, wherein the load box further comprises an upper subsection, a lower subsection, and a separation between the upper subsection and the lower subsection, the separation being filled with cement grout.
10. The prestressed concrete support enclosure of claim 1 wherein said enclosure further includes a purlin assembly, said purlin assembly being located around said foundation pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221105039.6U CN217460606U (en) | 2022-05-10 | 2022-05-10 | Concrete support envelope structure capable of applying prestress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221105039.6U CN217460606U (en) | 2022-05-10 | 2022-05-10 | Concrete support envelope structure capable of applying prestress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217460606U true CN217460606U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221105039.6U Active CN217460606U (en) | 2022-05-10 | 2022-05-10 | Concrete support envelope structure capable of applying prestress |
Country Status (1)
| Country | Link |
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| CN (1) | CN217460606U (en) |
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- 2022-05-10 CN CN202221105039.6U patent/CN217460606U/en active Active
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