CN201520978U - Slip casting soil nail with triangularly arranged reinforced steel bar - Google Patents
Slip casting soil nail with triangularly arranged reinforced steel bar Download PDFInfo
- Publication number
- CN201520978U CN201520978U CN2009202541887U CN200920254188U CN201520978U CN 201520978 U CN201520978 U CN 201520978U CN 2009202541887 U CN2009202541887 U CN 2009202541887U CN 200920254188 U CN200920254188 U CN 200920254188U CN 201520978 U CN201520978 U CN 201520978U
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- CN
- China
- Prior art keywords
- soil
- reinforcing bar
- slip casting
- soil nailing
- reinforced
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- Expired - Lifetime
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Abstract
The utility model pertains to the technology of soil retaining used in soil excavation and slope stabilization, and provides a slip casting soil nail with triangularly arranged reinforced steel bar. The slip casting soil nail is formed by a reinforced steel bar and cement paste body coated outside the reinforced steel bar, wherein the reinforced steel bar comprises a main reinforced bar and an auxiliary reinforced bar, and the main reinforced bar is distributed triangularly on the section of the soil nail; the auxiliary reinforced bar is bent into a triangle, and is sheathed and fixed on the main reinforced bar; and a plurality of auxiliary reinforced bars are arranged along the length direction of the soil nail. The slip casting soil nail has certain bending resistance and higher safety and stability of soil retaining. As the reinforced steel bars are arranged triangularly with equal weight, the material is saved to a maximum extent, and simultaneously, the side slope supported by the soil nails can be prevented from quickly collapsing, and the stability of the side slope supported by the soil nails is improved, thus creating time and conditions for safe evacuation of personnel and emergency work.
Description
Technical field
The utility model belongs to the native technology of a kind of retaining that is used for soil excavation and stability of slope, relates in particular to a kind of slip casting soil nailing that keeps off in the native technology.
Background technology
In civil engineering, adopt the plate brad supporting technology quite universal, plate brad supporting is one of native technology of a kind of retaining that is used for soil excavation and stability of slope, soil nailing is exactly to insert the slender rod piece of arranging with closeer spacing in the on-the-spot original position soil body, as reinforcing bar, angle steel or steel pipe etc., be referred to as the slip casting soil nailing and outside reinforcing bar, wrap up in cement paste slurry (cement mortar, fine-stone concrete).At present, what be used for that soil excavation and stability of slope the most generally use is the slip casting soil nailing, and the structure of slip casting soil nailing is: circular cross-section, center are built-in with a reinforcing bar.The slip casting soil nailing is a pore-forming (manually drawing hole or machine drilling) in the first soil body in position, and inserts reinforcing bar in the hole, the long slip casting filling perforation along the hole then.Whole soil nailing body is by the built-in reinforcing bar in center and wrap up in cement paste slurry (cement mortar, fine-stone concrete) outward and form.In order to guarantee that the soil nailing reinforcing bar is in the center in hole, around reaching enough calculus toppings are arranged, on the length of reinforcing bar, be provided with medium-height trestle every 2-3 rice, support welding or colligation are on reinforcing bar.
The characteristics of soil nailing are to contact with surrounding soil along elongated, with colony work and with the surrounding soil contact surface on form adhesion stress or frictional force, the passive tension of soil nailing is reinforced with constraint with giving the soil body, make it stable; The flexural strength of soil nailing just works when destroying when closing on, and makes soil nailing be subjected to curved scissors simultaneously, though its flexural strength just worked when soil nailing took place to destroy at the soil body, when plate brad supporting effect less, for preventing that the soil body rapid damage from having certain effect.From the instance analysis of many plate brad supporting slope failures of field conduct, deficiency and defective that the structure of existing soil nailing is mainly existed are: because whole soil nailing body is by the built-in reinforcing bar in center with wrap up in cement paste slurry (cement mortar, fine-stone concrete) outward and form.Reinforcing bar is one, and built-in at the center; Existing soil nailing does not possess bending resistance from the force analysis of beam, and the cement paste slurry (cement mortar, fine-stone concrete) after the plate brad supporting side slope is caved in existing many field conducts simultaneously on the soil nailing peels off from reinforcing bar.
Summary of the invention
The purpose of this utility model is intended to overcome the shortcoming of above-mentioned prior art, and a kind of saving material material, tension and bending resistance height are provided, and can prevent that the plate brad supporting side slope from taking place to cave in fast, improves the slip casting soil nailing of the triangular arrangement reinforcing bar of supporting slope stability.
The utility model is achieved through the following technical solutions:
A kind of slip casting soil nailing of triangular arrangement reinforcing bar is wrapped up in the cement paste slurry outward by reinforcing bar and reinforcing bar and is constituted; Described reinforcing bar has main muscle and auxilliary muscle, the distribution triangular in shape on this soil nailing cross section of main muscle, and auxilliary muscle surrounds the triangle suit and is fixed on the main muscle, and is furnished with several auxilliary muscle along the length direction at this soil nailing.
Stretch out and curve supporting member at described two heads that surround leg-of-mutton auxilliary muscle.
The linkage of described reinforcing bar one termination portion by and cage after main muscle on constitute.
The linkage of described reinforcing bar one termination portion by be welded on and cage after main muscle on bolt constitute.
The utility model compared with prior art has outstanding substantive distinguishing features with remarkable beneficial effect to be:
Only be subjected to pulling force when 1, having overcome the soil nailing use, soil nailing only is subjected to the prejudice of tension, because the plate brad supporting side slope is caved in the process, soil nailing will be subjected to bending, soil nailing will possess certain flexural strength, the utility model is the soil nailing with certain bending resistance, and the safety and stability performance of its retaining soil is better.
2, to be triangularly arranged can be isosceles triangle to the utility model reinforcing bar, or equilateral triangle, also can be arbitrary triangle; Yes preferentially uses isosceles and equilateral triangle, and the flexural strength of its soil nailing is good again, and under the condition of equivalent weight, saves material the most.
3, because soil nailing has higher bending resistance, its most outstanding feature be to prevent that the plate brad supporting side slope from taking place to cave in fast, improved the plate brad supporting slope stability, be that personnel's safe escape and emergency dealing are created time and condition.
Description of drawings
Fig. 1 is one of soil nailing bar construction schematic diagram of the present utility model.
Fig. 2 is two of a soil nailing bar construction schematic diagram of the present utility model.
Fig. 3 is the schematic diagram in the utility model rounded cross section of cement paste slurry in the soil body.
Fig. 4 is the schematic diagram in the utility model cement paste slurry cross section triangular in shape in the soil body.
The specific embodiment
As shown in Figure 1, one of soil nailing bar construction schematic diagram of the present utility model, this is the slip casting soil nailing of the triangular arrangement reinforcing bar of the formation linkage 4 behind a kind of main reinforcement one termination portion and the cage.This soil nailing is wrapped up in cement paste slurry 5 outward by reinforcing bar and reinforcing bar and is constituted; Described reinforcing bar has main muscle 1 and auxilliary muscle 2, the distribution triangular in shape on this soil nailing cross section of main muscle, auxilliary muscle surrounds the triangle suit and is fixed on the main muscle, and along being furnished with a plurality of auxilliary muscle at the length direction of this soil nailing, stretches out and curves supporting member 3 at two heads that surround leg-of-mutton auxilliary muscle.The linkage of reinforcing bar one termination portion is to stretch out head by main muscle to be constituted.It can be isosceles triangle that the utility model reinforcing bar is triangularly arranged, or equilateral triangle, also can be arbitrary triangle; Yes preferentially uses isosceles and equilateral triangle, and the flexural strength of its soil nailing is good again, and saves material the most.
As shown in Figure 2, two of soil nailing bar construction schematic diagram of the present utility model, this is a kind of slip casting soil nailing that is made of the triangular arrangement reinforcing bar of linkage 4 bolt on the main muscle that is welded on after closing up.
As shown in Figure 3, the schematic diagram in the utility model rounded cross section of cement paste slurry in the soil body.As shown in Figure 4, the schematic diagram in the utility model cement paste slurry cross section triangular in shape in the soil body 6.Mechanical punching can be adopted in the circular cross-section hole in the soil body, for the artificial method punching of shoveling in the hole of triangular-section; The soil nailing of triangular-section and the soil nailing of circular cross-section more more can improve soil nailing along elongated and surrounding soil contact area, improve to form adhesion stress or frictional force on soil nailing and the surrounding soil contact surface, thereby improve soil nailing to upper side slope stability.
Claims (4)
1. the slip casting soil nailing of a triangular arrangement reinforcing bar is wrapped up in cement paste slurry (5) outward by reinforcing bar and reinforcing bar and is constituted; It is characterized in that described reinforcing bar has main muscle (1) and auxilliary muscle (2), the distribution triangular in shape on this soil nailing cross section of main muscle, auxilliary muscle surrounds the triangle suit and is fixed on the main muscle, and is furnished with several auxilliary muscle along the length direction of this soil nailing, and the reinforcing bar one termination portion of this soil nailing is provided with linkage (4).
2. the slip casting soil nailing of a kind of triangular arrangement reinforcing bar according to claim 1 is characterized in that stretching out and curving supporting member (3) at described two heads that surround leg-of-mutton auxilliary muscle.
3. the slip casting soil nailing of a kind of triangular arrangement reinforcing bar according to claim 1 is characterized in that the linkage of described reinforcing bar one termination portion is to stretch out head by main muscle to be constituted.
4. the slip casting soil nailing of a kind of triangular arrangement reinforcing bar according to claim 1 is characterized in that the linkage of described reinforcing bar one termination portion is made of the bolt on the main muscle that is welded on after closing up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202541887U CN201520978U (en) | 2009-10-22 | 2009-10-22 | Slip casting soil nail with triangularly arranged reinforced steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202541887U CN201520978U (en) | 2009-10-22 | 2009-10-22 | Slip casting soil nail with triangularly arranged reinforced steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520978U true CN201520978U (en) | 2010-07-07 |
Family
ID=42507154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202541887U Expired - Lifetime CN201520978U (en) | 2009-10-22 | 2009-10-22 | Slip casting soil nail with triangularly arranged reinforced steel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041812B (en) * | 2009-10-22 | 2012-03-07 | 宁晋生 | Grouting soil nail for triangularly arranging reinforcing steel bars |
| CN111794444A (en) * | 2020-07-31 | 2020-10-20 | 曹宝军 | Passive building stainless steel assembled reinforcement structure system |
-
2009
- 2009-10-22 CN CN2009202541887U patent/CN201520978U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041812B (en) * | 2009-10-22 | 2012-03-07 | 宁晋生 | Grouting soil nail for triangularly arranging reinforcing steel bars |
| CN111794444A (en) * | 2020-07-31 | 2020-10-20 | 曹宝军 | Passive building stainless steel assembled reinforcement structure system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100707 Effective date of abandoning: 20091022 |