CN203498833U - Rotary jet grouting anchor rod body device - Google Patents
Rotary jet grouting anchor rod body device Download PDFInfo
- Publication number
- CN203498833U CN203498833U CN201320517788.4U CN201320517788U CN203498833U CN 203498833 U CN203498833 U CN 203498833U CN 201320517788 U CN201320517788 U CN 201320517788U CN 203498833 U CN203498833 U CN 203498833U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- rod body
- jet grouting
- rod
- steel bar
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 239000004568 cement Substances 0.000 claims description 9
- 210000003205 Muscles Anatomy 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Abstract
The utility model relates to a rotary jet grouting anchor rod body device, belongs to the field of geotechnical engineering, and can solve the problem that the binding power between grouting in a rotary jet grouting anchor rod and a rod body does not meet the safety requirement. The rotary jet grouting anchor rod body device comprises a rod body load-bearing steel bar, bearing steel plates and nuts, wherein the rod body load-bearing steel bar is a high-strength twisted steel bar; the end part of the rod body load-bearing steel bar is provided with a round bearing steel plate; the rod body load-bearing steel bar passes through a round bearing steel plate preformed hole, and is connected with the round bearing steel bar through the nut; the rod body load-bearing steel bar is provided with a plurality of round bearing steel plates in a rotary jet grouting anchor rod grouting range to form the anchor rod body device; the anchor rod body device is arranged in a rotary jet grouting anchor rod hole. The rotary jet grouting anchor rod body device has the beneficial effects that the rotary jet grouting anchor rod is short in hole forming depth, provides high bearing capacity and meets an extraction resistant safety requirement on the anchor rod body, the depth is not increased additionally to improve the binding power of the anchor rod body, the construction cost is reduced and the safety in use of the rotary jet grouting anchor rod is ensured.
Description
Technical field
The utility model relates to the jet grouting anchor rod rod device that a kind of geotechnical engineering field is used.
Background technology
At present, soil anchor extensive use in foundation pit supporting project and stability of slope engineering, conventional soil anchor construction pore-creating diameter is little, needs darker length providing in certain anchored force situation, causes pore-forming difficulty, and construction cost is high.
Engineering field is used a kind of jet grouting anchor rod construction technology at present, this technology drilling diameter is larger, providing, the length of anchor pole in same anchored force situation is shorter, but because the area of section of anchor rod body is less, the adhesion strength between injecting cement paste and the body of rod often can not meet safety requirements.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the utility model is just to provide a kind of jet grouting anchor rod rod device, can effectively solve the problem that the adhesion stress between injecting cement paste and the body of rod in jet grouting anchor rod does not meet safety requirements.
The technical scheme that the utility model solves is, body of rod steel bar stress arranges a plurality of circles carrying steel plate at jet grouting anchor rod injecting cement paste scope inner end and middle part is connected with body of rod steel bar stress, has improved the adhesion stress of the body of rod and injecting cement paste, has solved the problems referred to above.
The effect that the utility model is useful be jet grouting anchor rod short at depth of pore forming, guaranteed anchor rod body resistance to plucking safety requirements when high-bearing capacity is provided, increase no longer in addition the degree of depth to improve anchor rod body adhesion stress, reduce construction costs, guaranteed the use safety of jet grouting anchor rod.
Accompanying drawing explanation
Fig. 1 is the applicable jet grouting anchor rod schematic diagram of the utility model.
Fig. 2 is main TV structure schematic diagram of the present utility model.
Fig. 3 is carrying steel plate schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.
Shown in Fig. 1, Fig. 2, Fig. 3, described jet grouting anchor rod rod device, comprise body of rod steel bar stress (4), circular carrying steel plate (2), nut (3), body of rod steel bar stress adopts high-strength screw-thread steel muscle, body of rod steel bar stress end arranges circular carrying steel plate, body of rod steel bar stress is through circular carrying steel plate preformed hole (5), body of rod steel bar stress adopts nut to be connected with circular carrying steel plate, a plurality of same circle carrying steel plates are set afterwards in jet grouting anchor rod injecting cement paste (1) scope, after formation anchor rod body device, insert in jet grouting anchor rod hole.
The utility model being provided by said structure, compared with prior art, has following characteristics and beneficial effect:
1, the utility model, owing to being provided with a plurality of circular carrying steel plates at the jet grouting anchor rod body of rod, improves the body of rod and injecting cement paste adhesion stress, has guaranteed the anchor rod body resistance to plucking safety requirements of certain length, and has effectively saved construction costs.
2, the circular carrying of the utility model anchor rod body steel plate disperses the elongated pressure of anchor pole, has reduced the local pressure of injecting cement paste, has effectively guaranteed the quality safety of anchor pole.
3, the circular carrying of the utility model anchor rod body steel plate, because sectional area is greater than the body of rod, forms hole enlargement, and circular carrying steel plate pressurized, makes conventional tension anchor pole become tension and pressurized, has effectively reduced the crack of anchor pole, and then has improved the durability of anchor pole.
Claims (2)
1. a jet grouting anchor rod rod device, comprise body of rod steel bar stress, carrying steel plate, nut, body of rod steel bar stress adopts high-strength screw-thread steel muscle, body of rod steel bar stress end arranges circular carrying steel plate, body of rod steel bar stress is through circular carrying steel plate preformed hole, body of rod steel bar stress adopts nut to be connected with circular carrying steel plate, and within the scope of jet grouting anchor rod injecting cement paste, body of rod steel bar stress arranges a plurality of same circle carrying steel plates afterwards, after formation anchor rod body device, inserts in jet grouting anchor rod hole.
2. jet grouting anchor rod rod device according to claim 1, is characterized in that, described body of rod steel bar stress arranges a plurality of circles carrying steel plate at jet grouting anchor rod injecting cement paste scope inner end and middle part is connected with body of rod steel bar stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517788.4U CN203498833U (en) | 2013-08-23 | 2013-08-23 | Rotary jet grouting anchor rod body device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517788.4U CN203498833U (en) | 2013-08-23 | 2013-08-23 | Rotary jet grouting anchor rod body device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203498833U true CN203498833U (en) | 2014-03-26 |
Family
ID=50329825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320517788.4U Expired - Fee Related CN203498833U (en) | 2013-08-23 | 2013-08-23 | Rotary jet grouting anchor rod body device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203498833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563105A (en) * | 2014-12-29 | 2015-04-29 | 赵津梁 | Rear rod body type anchoring construction method and rear rod body type anchoring structure |
-
2013
- 2013-08-23 CN CN201320517788.4U patent/CN203498833U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563105A (en) * | 2014-12-29 | 2015-04-29 | 赵津梁 | Rear rod body type anchoring construction method and rear rod body type anchoring structure |
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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 |
Granted publication date: 20140326 Termination date: 20170823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |