CN209854732U - A recoverable supporting construction for loess area municipal foundation ditch - Google Patents
A recoverable supporting construction for loess area municipal foundation ditch Download PDFInfo
- Publication number
- CN209854732U CN209854732U CN201920210191.2U CN201920210191U CN209854732U CN 209854732 U CN209854732 U CN 209854732U CN 201920210191 U CN201920210191 U CN 201920210191U CN 209854732 U CN209854732 U CN 209854732U
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- China
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- steel
- pipe pile
- foundation pit
- channel beams
- loess
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- Expired - Fee Related
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Abstract
The utility model discloses a recoverable supporting structure for a municipal foundation pit in a loess area, which comprises steel pipe piles and a steel wire mesh which are distributed equidistantly and are embedded in drill holes at the edge of the foundation pit; and the steel channel beams are arranged on the inner side and the outer side of the upper part of the steel pipe pile and are connected through steel pull rods, and the steel pull rods penetrate through the steel channel beams and are fixedly connected with the steel channel beams through nut anchors. The utility model discloses a be equipped with the steel-pipe pile that the equidistance distributes in foundation ditch edge, and fix through crossbeam steel and steel pull rod and nut ground tackle, the loess stratum auger pore-forming of fully considering is simple quick, the good characteristics of loess stratum self-stability, utilize the good advantage of steel-pipe pile bending resistance, adopt the pre-drilling, the steel-pipe pile that impresses in is as a fender pile, area is little, deformation control is good, recoverable used repeatedly, green, construction process is simple and comparatively economic, has better economic benefits and practical value.
Description
Technical Field
The utility model relates to an excavation supporting engineering field specifically is a recoverable supporting construction for loess area municipal foundation ditch.
Background
Municipal engineering foundation pits of urban rainwater and sewage pipelines, underground comprehensive pipe galleries and the like generally have the characteristics of typical linear engineering, complex surrounding environmental conditions and the like; generally, the method does not have a slope-releasing condition, requires vertical excavation, and has certain requirements on construction speed in order to avoid influencing traffic for a long time. Present loess area municipal works foundation ditch common support type has (compound) soil nail wall, campshed, steel sheet pile etc. wherein: the (composite) soil nailing wall is simple and convenient to construct and low in manufacturing cost, but has poor deformation control and limited applicable foundation pit depth range, generally requires a certain slope-releasing space, has a large damage area to the existing road, occupies a certain range of adjacent underground space, has more underground residues after the foundation pit is backfilled, and is poor in environmental protection; the row piles occupy small area, the supporting rigidity is high, the deformation control is good, the depth range of the foundation pit is large when the row piles are matched with supporting or anchor pulling for use, but the construction cost is high, the temporary supporting investment of the foundation pit for municipal engineering is large and is prone to scaling, and the foundation pit is poor in environmental protection property due to the fact that underground residues are large after backfilling; the steel sheet pile has the advantages of small occupied area, reusability and environmental protection, the economy is better than that of the row pile, but the pile sinking of the steel sheet pile in the yellow soil layer is relatively difficult, the flexibility of the steel sheet pile is larger, the cantilever support depth is smaller, the deformation control mainly depends on supporting or anchor pulling, the number of supporting or anchor pulling tracks is often larger, and the operation in a pit is not facilitated or the construction period is influenced. Obviously, the support types have advantages, disadvantages and application range.
Therefore, the construction method for the green and environment-friendly recyclable support structure is developed, has higher rigidity than a steel sheet pile, is beneficial to controlling deformation, can be used for vertically excavating, has small occupied area, is economic in manufacturing cost and simple in construction, is suitable for the municipal foundation pit in the loess area, and has better practical value and social benefit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a recoverable supporting construction for loess area municipal foundation ditch to solve the problem that provides in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a recyclable supporting structure for a municipal foundation pit in a loess region comprises steel pipe piles and a steel wire mesh which are equidistantly distributed and are nested in drill holes in the edge of the foundation pit; steel channel beams are arranged on the inner side and the outer side of the upper part of the steel pipe pile, the steel channel beams are connected through steel pull rods, and the steel pull rods penetrate through the steel channel beams and are fixedly connected with the steel channel beams through nut anchors; the steel pipe pile is characterized in that the steel wire mesh is abutted to the inner side of the steel pipe pile, the reinforcing rib transversely arranged is abutted to the outer side of the steel wire mesh, the reinforcing rib is sleeved with a U-shaped nail, and the U-shaped nail penetrates through the steel wire mesh and extends to an inter-pile soil body between the steel pipe piles.
As a further aspect of the present invention: and a sprayed concrete surface layer is sprayed on the outer side of the steel wire mesh.
As a further aspect of the present invention: and steel diagonal braces are arranged between the sprayed concrete surface layers.
As a further aspect of the present invention: and the upper end of the steel pipe pile is provided with a hoisting hole.
As a further aspect of the present invention: the reinforcing ribs are distributed at equal intervals from top to bottom.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a be equipped with the steel-pipe pile that the equidistance distributes in foundation ditch edge, and fix through crossbeam steel and steel pull rod and nut ground tackle, the loess stratum auger pore-forming of fully considering is simple quick, the good characteristics of loess stratum self-stability, utilize the good advantage of steel-pipe pile bending resistance, adopt the pre-drilling, the steel-pipe pile that impresses in is as a fender pile, area is little, deformation control is good, recoverable used repeatedly, green, construction process is simple and comparatively economic, has better economic benefits and practical value.
Drawings
FIG. 1 is a cross-sectional view of a recyclable support structure for a municipal foundation pit in a loess area;
FIG. 2 is a front view of a recyclable support structure for a municipal foundation pit in a loess area;
figure 3 is a top view of a recyclable support structure for a loess area municipal foundation pit.
In the figure: 1, drilling; 2-steel pipe pile; 3-hoisting holes; 4-channel steel beam; 5-a steel pull rod; 6-nut anchorage; 7-steel wire mesh; 8-reinforcing ribs; 9-U-shaped nails; 10-spraying concrete surface layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-3, in an embodiment of the present invention, a recoverable supporting structure for a municipal foundation pit in a loess area includes steel pipe piles 2, a steel wire mesh 7 and a sprayed concrete surface layer 10, which are equidistantly distributed and embedded in a borehole 1 at the edge of the foundation pit; the upper end of the steel pipe pile 2 is provided with a hoisting hole 3, so that hoisting and installation are facilitated; steel channel beams 4 are arranged on the inner side and the outer side of the upper portion of the steel pipe pile 2, the steel channel beams 4 are connected through steel pull rods 5, the steel pull rods 5 penetrate through the steel channel beams 4 and are fixedly connected with the steel channel beams 4 through nut anchors 6, so that the transverse rigid beams 4 are connected with the steel pipe piles 2 which are distributed at equal intervals into a whole, the stability is improved, and the bending resistance of the steel pipe piles is fully utilized; the inner side of the steel pipe pile 2 is abutted with a steel wire mesh 7, the outer side of the steel wire mesh 7 is abutted with reinforcing ribs 8 which are transversely arranged, the reinforcing ribs 8 are distributed at equal intervals up and down, U-shaped nails 9 are sleeved on the reinforcing ribs 8, the U-shaped nails 9 penetrate through the steel wire mesh 7 and extend to an inter-pile soil body between the steel pipe piles 2, and the steel wire mesh 7 and the reinforcing ribs 8 are fixed; the sprayed concrete surface layer 10 is sprayed on the outer side of the steel wire mesh 7 and used for protecting soil bodies among piles and avoiding soil body collapse.
Example 2
This example differs from example 1 in that: one or more steel counter-supports are arranged between the relatively arranged sprayed concrete surface layers 10, so that the overall strength is improved, and deformation is avoided.
The following are specifically mentioned: in the application, a steel wire mesh, a sprayed concrete surface layer and a steel counter brace are the prior art; the steel pipe pile and the beam steel pull rod are innovation points of the application; through the steel-pipe pile that is equipped with the equidistance and distributes in foundation ditch edge, and fix through crossbeam steel and steel pull rod and nut ground tackle, it is simple quick fully to consider loess stratum auger pore-forming, the good characteristics of loess stratum self-stability, utilize the good advantage of steel-pipe pile bending resistance, adopt the pre-drilling, the steel-pipe pile that impresses in the hole is as a fender pile, area is little, deformation control is good, recoverable used repeatedly, green, construction process is simple and comparatively economic, has better economic benefits and practical value.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A recoverable supporting structure for a municipal foundation pit in a loess region comprises steel pipe piles (2) and steel wire meshes (7) which are distributed at equal intervals and are embedded in drill holes (1) at the edge of the foundation pit; the steel pipe pile is characterized in that steel channel beams (4) are arranged on the inner side and the outer side of the upper portion of the steel pipe pile (2), the steel channel beams (4) are connected through steel pull rods (5), and the steel pull rods (5) penetrate through the steel channel beams (4) and are fixedly connected with the steel channel beams (4) through nut anchors (6); steel-pipe pile (2) inboard butt has wire net (7), and wire net (7) outside butt has strengthening rib (8) of horizontal setting, and U type nail (9) have been cup jointed in strengthening rib (8), and U type nail (9) pass wire net (7) and extend to the soil body between steel-pipe pile (2) between the stake.
2. The recoverable support structure for the municipal foundation pit in the loess region according to claim 1, wherein the outer side of the steel wire mesh (7) is sprayed with a sprayed concrete surface layer (10).
3. The recoverable support structure for the municipal foundation pit in the loess region according to claim 2, wherein steel diagonal braces are provided between the shotcrete surface layers (10).
4. The recyclable supporting structure for the municipal foundation pit in the loess region as claimed in claim 1, wherein a hoisting hole (3) is formed at the upper end of the steel pipe pile (2).
5. The recoverable support structure for the municipal foundation pit in the loess region according to claim 1, wherein the reinforcing ribs (8) are arranged equidistantly from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920210191.2U CN209854732U (en) | 2019-02-18 | 2019-02-18 | A recoverable supporting construction for loess area municipal foundation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920210191.2U CN209854732U (en) | 2019-02-18 | 2019-02-18 | A recoverable supporting construction for loess area municipal foundation ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209854732U true CN209854732U (en) | 2019-12-27 |
Family
ID=68931712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920210191.2U Expired - Fee Related CN209854732U (en) | 2019-02-18 | 2019-02-18 | A recoverable supporting construction for loess area municipal foundation ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209854732U (en) |
-
2019
- 2019-02-18 CN CN201920210191.2U patent/CN209854732U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 Termination date: 20210218 |