CN203729305U - Supporting structure of foundation pit - Google Patents
Supporting structure of foundation pit Download PDFInfo
- Publication number
- CN203729305U CN203729305U CN201320860228.9U CN201320860228U CN203729305U CN 203729305 U CN203729305 U CN 203729305U CN 201320860228 U CN201320860228 U CN 201320860228U CN 203729305 U CN203729305 U CN 203729305U
- Authority
- CN
- China
- Prior art keywords
- foundation pit
- reinforcing bar
- supporting construction
- pit supporting
- metal lath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a supporting structure of a foundation pit. The supporting structure of the foundation pit comprises a steel plate net and multiple fixing steel bars, wherein the steel plate net is laid on the side wall of the foundation pit, and the fixing steel bars are connected with the steel plate net in a binding mode and inserted into the side wall of the foundation pit. According to the supporting structure of the foundation pit, the steel plate net is used for replacing a steel bar net in the prior art and is laid on the side wall of the foundation pit and inserted into the side wall of the foundation pit for being fixed through the fixing steel bars which are connected with the steel plate net in the binding mode, welding between the steel bars is not needed, welding between the steel bars and soil nails is not needed either, the workload is greatly reduced, and therefore construction efficiency is improved; meanwhile, material cost, labor cost and other cost are reduced.
Description
Technical field
The utility model relates to geotechnical engineering design field, specifically, relates to a kind of foundation pit supporting construction.
Background technology
In base pit engineering, soil-nail wall support is that the soil nailing inserting in foundation pit side-wall is welded together with the surfacing steel bar being laid on foundation pit side-wall, the concrete pavement in soil nailed wall retaining structure utilizes the stability of the mass action guarantee foundation pit side-wall of soil nailing and body of wall, so need to arrange the steel mesh reinforcement that quantity of reinforcement is larger to be connected with soil nailing.But, make and lay the workload of steel mesh reinforcement larger, particularly the welding between the welding between reinforcing bar and reinforcing bar, reinforcing bar and soil nailing all needs duration of growing and higher cost.
Different from soil-nail wall support; putting slope supporting is the support form that reaches slope stability by native independence; pile-anchor retaining is to rely on campshed, prestressed anchor and waist rail acting in conjunction to make the stable support form of excavation slope; in these two kinds of support forms; concrete pavement is not all main force structure; only play the effect of waterproof and protection inter-pile soil, if still use steel mesh reinforcement arrangement of reinforcement just to cause the waste of material, the cost such as artificial.
Utility model content
The purpose of this utility model is to provide a kind of foundation pit supporting construction, constructs simple and convenient, improves efficiency of construction, saves material, the cost such as artificial.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of foundation pit supporting construction, comprises the expanded metal lath being laid on foundation pit side-wall, and multiple and described expanded metal lath colligation is connected and inserts the fixing reinforcing bar in described foundation pit side-wall.
Described fixing reinforcing bar is connected by steel wire lashing with described expanded metal lath.
Described fixing reinforcing bar is uniformly distributed on described expanded metal lath.
The spacing of the described fixing reinforcing bar that along continuous straight runs is adjacent is 1.2-1.5m.
Be 1.0-1.2m along the spacing of the adjacent described fixing reinforcing bar of foundation pit side-wall incline direction.
The length of described fixing reinforcing bar is 0.9-1.1m.
Described expanded metal lath is expanded steel diamond mesh.
The long-pitch of described expanded steel diamond mesh is not more than 110mm.
The short pitch of described expanded steel diamond mesh is not more than 43mm.
The thickness of described expanded metal lath is not less than 2mm.
Foundation pit supporting construction of the present utility model, adopt expanded metal lath to replace steel mesh reinforcement of the prior art to be laid on foundation pit side-wall, insert in foundation pit side-wall and be fixed by the fixing reinforcing bar being connected with expanded metal lath colligation, do not need the welding between welding, reinforcing bar and the soil nailing between reinforcing bar and reinforcing bar, workload greatly reduces, thereby raising efficiency of construction is saved material, the cost such as artificial simultaneously.
Brief description of the drawings
Fig. 1 is the arrangement of reinforcement schematic diagram of the utility model foundation pit supporting construction.
Detailed description of the invention
Describe feature of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, foundation pit supporting construction of the present utility model comprises the expanded metal lath 1 being laid on foundation pit side-wall (not shown), and is multiplely connected with expanded metal lath 1 colligation and inserts the fixing reinforcing bar 2 in foundation pit side-wall.Compared with steel mesh reinforcement of the prior art, the making of expanded metal lath 1 is simple, cost is lower, in addition, because intensity and the lifting surface area of expanded metal lath 1 are larger, therefore can carry out colligation with fixing reinforcing bar 2 by steel wire and be connected, and do not need the welding between welding, reinforcing bar and the soil nailing between reinforcing bar and reinforcing bar, workload greatly reduces, and improves efficiency of construction, saves material, the cost such as artificial simultaneously.
Preferably, fixing reinforcing bar 2 is uniformly distributed on expanded metal lath 1, and two adjacent fixing reinforcing bar 2 spacing c are in the horizontal direction generally 1.2-1.5m, is generally 1.0-1.2m, to ensure fixed effect along the spacing d of the incline direction of foundation pit side-wall.
The length of fixing reinforcing bar 2 can arrange according to engineering demand, is generally 0.9-1.1m, also can recycle by the discarded reinforcing bar to job site, with the object that realizes twice laid, reduces costs.
The general expanded steel diamond mesh that adopts of expanded metal lath 1, wherein long-pitch a is not more than 110mm, and short pitch b is not more than 43mm, and thickness is not less than 2mm, to ensure the support strength to concrete pavement.
After soil excavation, first carry out just pneumatically placed concrete, then prefabricated expanded metal lath 1 large area is routed on foundation pit side-wall, be connected with expanded metal lath 1 colligation and insert in the soil body of foundation pit side-wall with the fixing reinforcing bar 2 that is about 1m again, to play the effect of fixation steel plate net 1, the concrete pavement that is finally generally no more than 60mm by designing requirement sprayed mortar to form thickness, so both can meet the structure requirement of putting slope supporting and pile-anchor retaining, can realize again concrete pavement waterproof and protect native object.This method, ensureing that supporting and protection structure meets under the prerequisite of demand for security, both can have been saved material, also can save labour cost and duration.
Any technician in this area provides the description to preferred embodiment above, so that can use or utilize the utility model.To this preferred embodiment, those skilled in the art, not departing from the basis of the utility model principle, can make various amendments or conversion.Should be appreciated that these amendments or conversion do not depart from protection domain of the present utility model.
Claims (10)
1. a foundation pit supporting construction, is characterized in that, comprises
Be laid on the expanded metal lath on foundation pit side-wall; And
Multiple and described expanded metal lath colligation is connected and inserts the fixing reinforcing bar in described foundation pit side-wall.
2. foundation pit supporting construction as claimed in claim 1, is characterized in that, described fixing reinforcing bar is connected by steel wire lashing with described expanded metal lath.
3. foundation pit supporting construction as claimed in claim 1 or 2, is characterized in that, described fixing reinforcing bar is uniformly distributed on described expanded metal lath.
4. foundation pit supporting construction as claimed in claim 1 or 2, is characterized in that, the spacing of the described fixing reinforcing bar that along continuous straight runs is adjacent is 1.2-1.5m.
5. foundation pit supporting construction as claimed in claim 1 or 2, is characterized in that, is 1.0-1.2m along the spacing of the adjacent described fixing reinforcing bar of foundation pit side-wall incline direction.
6. foundation pit supporting construction as claimed in claim 1 or 2, is characterized in that, the length of described fixing reinforcing bar is 0.9-1.1m.
7. foundation pit supporting construction as claimed in claim 1 or 2, is characterized in that, described expanded metal lath is expanded steel diamond mesh.
8. foundation pit supporting construction as claimed in claim 7, is characterized in that, the long-pitch of described expanded steel diamond mesh is not more than 110mm.
9. foundation pit supporting construction as claimed in claim 7, is characterized in that, the short pitch of described expanded steel diamond mesh is not more than 43mm.
10. foundation pit supporting construction as claimed in claim 1 or 2, is characterized in that, the thickness of described expanded metal lath is not less than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860228.9U CN203729305U (en) | 2013-12-24 | 2013-12-24 | Supporting structure of foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860228.9U CN203729305U (en) | 2013-12-24 | 2013-12-24 | Supporting structure of foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729305U true CN203729305U (en) | 2014-07-23 |
Family
ID=51199390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320860228.9U Expired - Fee Related CN203729305U (en) | 2013-12-24 | 2013-12-24 | Supporting structure of foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203729305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265800A (en) * | 2019-05-21 | 2019-09-20 | 中国建筑第八工程局有限公司 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
-
2013
- 2013-12-24 CN CN201320860228.9U patent/CN203729305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265800A (en) * | 2019-05-21 | 2019-09-20 | 中国建筑第八工程局有限公司 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20201224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |