CN203247593U - Soil nail structure - Google Patents
Soil nail structure Download PDFInfo
- Publication number
- CN203247593U CN203247593U CN 201320259200 CN201320259200U CN203247593U CN 203247593 U CN203247593 U CN 203247593U CN 201320259200 CN201320259200 CN 201320259200 CN 201320259200 U CN201320259200 U CN 201320259200U CN 203247593 U CN203247593 U CN 203247593U
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- China
- Prior art keywords
- soil nailing
- soil nail
- soil
- bamboo
- chucks
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Abstract
Provided is a soil nail structure. A soil nail is arranged in a foundation pit. The soil nail structure is characterized by comprising a bamboo soil nail body, wherein grouting holes penetrating in the radial direction are formed in the soil nail body at intervals in the length direction, and a force application clamp enabling the soil nail body to be penetrated into the foundation pit is further movably arranged on the soil nail body. Compared with the prior art, the soil nail structure has the advantages that a traditional steel pipe or a rebar soil nail is replaced by the bamboo soil nail, materials of the bamboo soil nail is easy to obtain, the bamboo soil nail is cheap, thus not only can the purpose that the foundation pit is supported by the traditional soil nail be achieved, but also the bamboo soil nail is rotted naturally to be integrated with a soil mass on the periphery of the bamboo soil nail after a period of time so as not to be a barrier which permanently exceeds the red line, and better environment-friendliness and cleanness are achieved.
Description
Technical field
The utility model relates to a kind of foundation pit supporting system, particularly a kind of soil nailing structure for construction of soil-nailed wall.
Background technology
In the situation that the excavation of foundation pit degree of depth little (such as soft clay area, generally when putting sloping condition in 5m, when putting sloping condition in 4m), adopting soil nail wall or composite soil nailing wall is a kind of both economical supporting scheme as the support system of foundation ditch.
At present, soil nailing wall structure of the prior art, its soil nailing steel pipes (or reinforcing bar) that adopt with injected hole more, by (or in boring) slip casting in pipe, realization is to the reinforcing of the soil body around the foundation ditch, and the domatic employing of foundation ditch is hung steel mesh reinforcement and also sprayed concrete, makes the soil that is reinforced and soil nailing by slip-crack surface form the compound soil body, be equivalent to gravity retaining wall, thereby reach the purpose of supporting foundation pit.But this steel pipe or the reinforcing bar of utilizing is as the soil nailing of material, and cost is higher on the one hand, and cost increases, on the other hand, in case soil nailing surmounts Systems of Red Line in Planning Based in work progress, can be because violate norm of construction compulsive clause regulation and can't implement.Therefore, also there is certain defective in the soil nailing that existing soil nailing wall structure adopts in construction application, need to do further improvement.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of soil nailing structure cheap and more environmental protection for above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of soil nailing structure, this soil nailing is arranged in the foundation ditch, it is characterized in that: described soil nailing includes the soil nailing body of bamboo wood, described soil nailing body along its length compartment of terrain offers the injected hole that radially runs through, and also being provided with movably on the described soil nailing body can be with the application of force anchor clamps in this soil nailing body injection foundation ditch.
As preferably, described application of force anchor clamps include two respectively chucks of arranging of semicirculars in shape docking, are provided with the radially force application board of evagination on the described chuck of each piece, and the force application board on two described chucks is established relatively.
In order to improve connection reliability, increase the connection compactness between chuck and the soil nailing body, as preferably, also be provided with rubber washer between described soil nailing body and the described chuck.
For for convenience detach and install, as preferably, the two ends of two described chucks link to each other by detachable securing member respectively.
In order to improve rigidity and intensity, as preferably, each described force application board also is provided with reinforcing rib in the same side.
Soil nailing injection foundation ditch during for convenient construction, as preferably, an end of described soil nailing body is tapered.
Compared with prior art, the utility model has the advantage of: replace traditional steel pipe or reinforcing bar soil nailing with the bamboo material soil nail of drawing materials easy, cheap, can reach the purpose of traditional plate brad supporting foundation ditch, again can be after after a while, because it rots to combine together with the peripheral soil body naturally, make its unlikely a kind of permanent obstruction that surmounts red line, more environment-protecting clean of becoming.
Description of drawings
Fig. 1 is one of soil nailing structural representation of the utility model embodiment.
Fig. 2 is the soil nailing mounting structure schematic diagram of the utility model embodiment.
Fig. 3 is that A-A shown in Figure 2 is to sectional view.
Fig. 4 is that the soil nailing of the utility model embodiment uses state diagram.
The specific embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Such as Fig. 1～shown in Figure 4, the present embodiment relates to a kind of soil nailing structure, this soil nailing includes soil nailing body 1, cheap, the easy bamboo wood making of drawing materials that soil nailing body 1 adopts, soil nailing body 1 along its length compartment of terrain offers a plurality of injected holes 11 that radially run through, and an end 12 of soil nailing body 1 is tapered, can conveniently bamboo material soil nail be squeezed in the foundation ditch when construction, and also being provided with movably on the soil nailing body 1 can be conveniently with the application of force anchor clamps in this soil nailing body 1 injection foundation ditch.
Wherein, application of force anchor clamps 2 include two respectively chucks 21 of semicircular in shape docking setting, be provided with the radially force application board 22 of evagination on each piece chuck 21, force application board 22 on two chucks 21 is established relatively, and, in order to improve bulk strength and rigidity, each force application board 22 also is provided with reinforcing rib 23 in the same side, the two ends of two chucks 21 cooperate by detachable securing member 221(such as bolt nut respectively) link to each other, in order to improve connection reliability, increase clamping degree, also be provided with the rubber washer 24 that can be sheathed on outside the soil nailing body 1 between soil nailing body 1 and the chuck 21, referring to Fig. 3.
The soil nailing of the present embodiment preferably selects the low bamboo wood of vary in diameter rate such as steel bamboo with being material when practical application, and when the cutting depth of foundation ditch was 5m, the length of bamboo wood selected 6m to meet the demands.
The processing of the present embodiment bamboo material soil nail body 1 is divided into following three steps: the first step, bamboo is rushed joint, and the dividing plate between ring breaks through, and keeps end one joint dividing plate; Second step is whittled into taper to injection one end of bamboo wood; In the 3rd step, between ring, bore injected hole 11.
The use mounting structure schematic diagram of the present embodiment soil nailing as shown in Figure 4, excavates out the construction working face of bamboo material soil nail, by designing requirement (comprising position, inclination angle) bamboo material soil nail in place at foundation ditch 3 limits employing slot type layer and section; At the domatic 1m of being no more than of distance foundation pit earth place application of force anchor clamps are installed on the soil nailing body 1, after two chuck 21 two ends of application of force anchor clamps are passed with bolt respectively, connect clamping with nut again; With hammering or method of press-fitting is exerted pressure by force application board 22 or hammer force (shown in the arrow F of Fig. 2, Fig. 4), make in the soil nailing injection slope soil, at application of force anchor clamps with before the side slope face contacts, unclamp application of force anchor clamps and to about the backward shift 1m, again clamp soil nailing body 1, then repeat above process projected depth is arrived in the soil nailing injection.
Usually, soil nailing should expose 200mm outside side slope, then Grouting Pipe is inserted in the soil nailing body, and is started slurry filling machine slip casting enforcement to the reinforcing of the peripheral soil body.Repeat aforementioned job practices, until after whole soil nailings of side slope finish, establish drawknot bamboo bar or reinforcing bar each layer soil nailing drawknot at the side slope face, then (bamboo cane is wide by 1～2cm) to lay bamboo cane net sheet, with the reinforced mesh in the bamboo cane net sheet replacement traditional handicraft, at last, with spraying concrete construction side slope surface layer, whole work progresss of bamboo reinforcement soil nail wall have so just been finished.
Soil nail wall based on foundation ditch is to belong to temporary support structures, and as main material, bamboo wood is that a kind of rift grain draws strong high material to the soil nail wall of the present embodiment with bamboo wood, be different from anchor pole, be not to rely on uplift resistance to reach the purpose of supporting, therefore in temporary structure, may compare with steel; And bamboo material soil nail cheap replaces traditional formed bamboo reinforcement soil nail wall of steel with bamboo wood, its force-mechanism, in full accord with the soil nail wall that uses steel to form, its computational methods and structure requirement can utilize existing foundation pit supporting construction standard to design fully; Add the poor durability of bamboo wood, after after a while, it naturally rots and combines together with the soil body, makes it unlikelyly become a kind of permanent obstruction that surmounts red line, more environmental protection.
Claims (6)
1. soil nailing structure, this soil nailing is arranged in the foundation ditch, it is characterized in that: described soil nailing includes the soil nailing body of bamboo wood, described soil nailing body along its length compartment of terrain offers the injected hole that radially runs through, and also being provided with movably on the described soil nailing body can be with the application of force anchor clamps in this soil nailing body injection foundation ditch.
2. soil nailing structure according to claim 1, it is characterized in that: described application of force anchor clamps include two respectively chucks of semicircular in shape docking setting, be provided with the radially force application board of evagination on the described chuck of each piece, and the force application board on two described chucks is established relatively.
3. soil nailing structure according to claim 2 is characterized in that: also be provided with rubber washer between described soil nailing body and the described chuck.
4. soil nailing structure according to claim 3 is characterized in that: the two ends of two described chucks link to each other by detachable securing member respectively.
5. soil nailing structure according to claim 3, it is characterized in that: each described force application board also is provided with reinforcing rib in the same side.
6. the described soil nailing structure of arbitrary claim according to claim 1～5, it is characterized in that: an end of described soil nailing body is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320259200 CN203247593U (en) | 2013-05-10 | 2013-05-10 | Soil nail structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320259200 CN203247593U (en) | 2013-05-10 | 2013-05-10 | Soil nail structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203247593U true CN203247593U (en) | 2013-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320259200 Expired - Fee Related CN203247593U (en) | 2013-05-10 | 2013-05-10 | Soil nail structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203247593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480880A (en) * | 2015-08-28 | 2017-03-08 | 上海勘测设计研究院有限公司 | Recoverable soil nailing and the construction method using recoverable soil nail |
-
2013
- 2013-05-10 CN CN 201320259200 patent/CN203247593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480880A (en) * | 2015-08-28 | 2017-03-08 | 上海勘测设计研究院有限公司 | Recoverable soil nailing and the construction method using recoverable soil nail |
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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: 20131023 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |