CN203530972U - Novel compound anchor rod - Google Patents
Novel compound anchor rod Download PDFInfo
- Publication number
- CN203530972U CN203530972U CN201320517790.1U CN201320517790U CN203530972U CN 203530972 U CN203530972 U CN 203530972U CN 201320517790 U CN201320517790 U CN 201320517790U CN 203530972 U CN203530972 U CN 203530972U
- Authority
- CN
- China
- Prior art keywords
- pile body
- grouting
- rod
- enlarged footing
- strength
- 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
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a novel compound anchor rod. The novel compound anchor rod comprises a pile body and a high-pressure grouting expansion head, wherein the pile body and the expansion head are filled with cement paste, an anchor rod framework is inserted into the center of the pile body, and is composed of rebars or steel strands, a rod body locating support, a pressure end bearing plate, a sealing steel plate, a grouting pipe for post-grouting operation, a guide cap and a high-strength canvas cylindrical bearing body, then, secondary grouting is carried out through the post-grouting grouting pipe, part of the cement-soil paste in the expansion head is replaced after a high-strength canvas cylinder is filled with plain cement paste to expand, a high-strength stone-combined bearing body is formed after the plain cement paste in the high-strength canvas cylinder solidifies, local pressure at the end of the anchor rod is resisted, the uplift bearing capacity of the pile body is improved, the pile body is in a pressure bearing state, the pile body cannot crack due to tension when the pile body is in the used state, and durability of the pile body is improved.
Description
Technical field
The utility model relates to a kind of New Composite Bolt, particularly a kind of Composite Bolt of inserting pressure end board and post-infusion cement slurry cartridge type supporting body in high-pressure injection enlarged footing anchor pole.
Background technology
The industry standard < < high-pressure injection enlarged footing anchor pole tecnical regulations > > (JGJ/T282-2012) having promulgated at present provides a kind of high-pressure injection enlarged footing novel anchor rod, the general employing of enlarged footing anchor pole has bonding steel strand or reinforcing bar dependence to provide pulling capacity with the adhesion strength of cement slurry, body of rod tension in permanent works use procedure, there is crack in cement column, easily cause steel strand or reinforcement corrosion, can not meet structure durability requirement.When enlarged footing anchor pole adopts end pressure type, in enlarged footing, slurry, owing to containing earth, solidifies rear intensity less, easily occurs end local failure, thereby cause that pile body lost efficacy when larger pulling capacity drawing.
Utility model content
Technical problem to be solved in the utility model is, overcomes problems of the prior art, and a kind of New Composite Bolt is provided, and this anchor pole is high-pressure injection enlarged footing anchor pole, inserts pressure end board and post-infusion cement slurry cartridge type supporting body in enlarged footing.
In order to address the above problem, the technical solution of the utility model is such:
A kind of New Composite Bolt, comprise pile body and high-pressure injection enlarged footing, described pile body and enlarged footing are filled by cement paste, insert by reinforcing bar or steel strand, body of rod locating support, pressure end board, sealing steel plate, anchor pole skeleton that for grouting behind shaft or drift lining, Grouting Pipe, guiding cap and high-strength canvas cartridge type supporting body form at pile body center, by Grouting Pipe, carry out secondary grouting afterwards, the rear distraction of high-strength canvas cylinder filling plain-water slurry displaces the part of cement soil paste body in enlarged footing, in cylindrical shell, plain-water slurry solidifies the high-strength calculus supporting body of rear formation, jointly forms Composite Bolt.
Described pressure end board material is steel, and diameter is 90-110, and thickness is 8mm-12mm, and body of rod preformed hole is set, and the body of rod is connected as a single entity by ground tackle or nut or welding through rear.
The described body of rod can adopt the wherein a kind of of prestress wire, indented bars for prestressed concrete, heat tempering bar, regular screw threads reinforcing bar.
Cylinder in described cartridge type supporting body adopts high-strength canvas material to make, diameter is slightly smaller than enlarged footing diameter, is highly slightly smaller than height of enlarged base, reserved grouting behind shaft or drift lining pipe in cylinder, cylinder bottom cover excess pressure end board firm with its colligation, cylinder top is firm by sealing steel plate and the body of rod and the colligation of grouting behind shaft or drift lining pipe.
Described pressure end board, the body of rod, cylindrical shell form rockbolt stress skeleton.
Described tube of skeleton top arranges locating support placed in the middle above, and spacing is 2 meters.
During construction, advanced horizontal high voltage sprays enlarged footing anchor bolt construction, pile body and enlarged footing are filled by cement paste, after pore-forming, insert above-mentioned skeleton, then by Grouting Pipe, in cylinder, inject the plain-water slurry that strength grade is not less than 42.5MPa, maximum grouting pressure reaches 1-2MPa, and high-pressure injection enlarged footing anchor pole and pressure end board, cartridge type supporting body and other component form Composite Bolt jointly.
Beneficial effect:
New Composite Bolt described in the utility model, by the combination of high-pressure injection enlarged footing anchor pole and pressure end board, cartridge type supporting body, mineralization pressure type anchor pole, make anchor pole become pressurized from tension, avoided the generation in anchor pole crack, improved the durability of anchor pole, cartridge type supporting body adopts high-intensity cement paste, solidify rear anchor pole supporting body when being subject to higher end pulling force and be not vulnerable to local compression destruction, thereby improved the uplift resistance of anchor pole.
New Composite Bolt described in the utility model, during enlarged footing inner tube type supporting body grouting behind shaft or drift lining, has extrusion effect to cement paste in enlarged footing, can improve anchor pole enlarged footing and native adhesion, thereby improves anchor pole vertically pulling-resistant power.
Accompanying drawing explanation
Fig. 1 is cross-section structure front view of the present utility model.
Fig. 2 is the utility model skeleton cross-section structure front view.
Fig. 3 is enlarged footing cross-sectional view of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of New Composite Bolt, comprise enlarged footing 4 at the bottom of pile body 1 and high-pressure injection stake, after described pile body 1 and enlarged footing 4 are filled by cement paste, insert by reinforcing bar or steel strand 2 at pile body center, body of rod locating support 3, pressure end board 6, sealing steel plate 9, Grouting Pipe 8 for grouting behind shaft or drift lining, guiding cap 7, anchor pole skeleton with high-strength canvas cartridge type supporting body 5 compositions, by Grouting Pipe 8, carry out secondary grouting afterwards, high-strength canvas cylindrical shell 5 filling plain-water slurry back braces displace greatly the cement-soil slurry in enlarged footing 4, in cylindrical shell, plain-water slurry solidifies the high-strength calculus supporting body of rear formation, a kind of Composite Bolt of common formation.
Referring to Fig. 2 and Fig. 3, anchor pole skeleton is that sealing steel plate 9 and pressure end board 6 pass reinforcing bar or steel strand 2, by welding or ground tackle, fix, guiding cap 7 is welded in pressure end board 6, Grouting Pipe 8 is through the preformed hole that seals steel plate 9 to pressure end board 6, and upper length is with reinforcing bar or steel strand 2, and high-strength canvas cylinder 5 is fixed on sealing steel plate 9 and guiding cap 7 through anchor pole bottom and by tied silk or mightiness belt afterwards, anchor pole top stationary positioned support 3, forms anchor pole skeleton.
Claims (5)
1. a New Composite Bolt, comprise pile body and high-pressure injection enlarged footing, described pile body and enlarged footing are filled by cement paste, insert by reinforcing bar or steel strand, body of rod locating support, pressure end board, sealing steel plate, anchor pole skeleton that for grouting behind shaft or drift lining, Grouting Pipe, guiding cap and high-strength canvas cartridge type supporting body form at pile body center, by Grouting Pipe, carry out secondary grouting afterwards, the rear distraction of high-strength canvas cylinder filling plain-water slurry displaces the cement-soil slurry in enlarged footing, in cylindrical shell, plain-water slurry solidifies the high-strength calculus supporting body of rear formation, jointly forms Composite Bolt.
2. New Composite Bolt according to claim 1, is characterized in that, described pile body, enlarged footing are filled by cement paste.
3. New Composite Bolt according to claim 1, is characterized in that, described pressure end board material is steel, and diameter is 90-110, and thickness is 8mm-12mm, and body of rod preformed hole is set, and the body of rod is connected as a single entity by ground tackle or nut or welding through rear.
4. New Composite Bolt according to claim 1, it is characterized in that, cylinder in described cartridge type supporting body adopts high-strength canvas material to make, diameter is slightly smaller than enlarged footing diameter, highly be slightly smaller than height of enlarged base, in cylinder, reserve grouting behind shaft or drift lining pipe, cylinder bottom cover excess pressure end board and guiding cap firm with its colligation, cylinder top is firm by sealing steel plate and the body of rod and the colligation of grouting behind shaft or drift lining pipe.
5. New Composite Bolt according to claim 1, is characterized in that, the described body of rod can adopt the wherein a kind of of prestress wire, indented bars for prestressed concrete, heat tempering bar, regular screw threads reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517790.1U CN203530972U (en) | 2013-08-23 | 2013-08-23 | Novel compound anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517790.1U CN203530972U (en) | 2013-08-23 | 2013-08-23 | Novel compound anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203530972U true CN203530972U (en) | 2014-04-09 |
Family
ID=50417197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320517790.1U Expired - Fee Related CN203530972U (en) | 2013-08-23 | 2013-08-23 | Novel compound anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203530972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234050A (en) * | 2014-09-01 | 2014-12-24 | 德州市公路工程总公司 | Lead hole implanted anti-floating rock anchor rod with supporting trays and construction method thereof |
| CN104594348A (en) * | 2015-01-27 | 2015-05-06 | 安徽同济建设集团有限责任公司 | Expanded head capsule type anchor rod and construction method thereof |
-
2013
- 2013-08-23 CN CN201320517790.1U patent/CN203530972U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234050A (en) * | 2014-09-01 | 2014-12-24 | 德州市公路工程总公司 | Lead hole implanted anti-floating rock anchor rod with supporting trays and construction method thereof |
| CN104234050B (en) * | 2014-09-01 | 2015-12-02 | 德州市公路工程总公司 | One draws hole implanted band branch anti-floating rock bolt and construction method |
| CN104594348A (en) * | 2015-01-27 | 2015-05-06 | 安徽同济建设集团有限责任公司 | Expanded head capsule type anchor rod and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200996296Y (en) | High-strength decompressing slip-casting rockbolt | |
| CN202360119U (en) | Soft rock roadway supporting structure with multiple spray layers of seal coats | |
| CN203756203U (en) | Self-drilling type full-thread bolt grouting anchor rod | |
| CN104674808A (en) | Novel assembly type hollow grouting anchor bolt and construction method thereof | |
| CN201762717U (en) | Structure for connecting prestressed pipe pile and cushion cap | |
| CN202809633U (en) | Connecting structure of pre-stressed high-strength concrete (PHC) pipe pile and bearing platform | |
| CN102865088B (en) | Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same | |
| CN103334779A (en) | Method for constructing isotropic surrounding rock soft rock roadway support | |
| CN203530973U (en) | Composite anchor rod | |
| CN204475327U (en) | A kind of novel fabricated anchor pole with cage of reinforcement | |
| CN203530972U (en) | Novel compound anchor rod | |
| CN209212273U (en) | A kind of basalt fibre reinforcing body anchor pole | |
| CN201367909Y (en) | Novel anchor rod with end anchorage and full-length radial anchorage | |
| CN208701666U (en) | The barbed implantable steel tube anchor rod of building foundation pit side slope | |
| CN202338349U (en) | Bamboo-joint type high-strength anchor rod | |
| CN201599046U (en) | Tension anchor rod | |
| CN204511480U (en) | A kind of Novel hollow grouted anchor bar with multistage branch | |
| CN108842792A (en) | A kind of layering is interior to draw anchor pole and construction method with being lifted discharging type | |
| CN203188202U (en) | Pressure type high bearing capacity composite uplift pile | |
| CN204780945U (en) | Enlarged footing anchor bolt support structure | |
| CN204419218U (en) | A kind of novel combination type steel strand anchor rod | |
| CN204327134U (en) | A kind of prestressing force balance anchor cable | |
| CN106869136A (en) | One kind expands end formula soil bolt | |
| CN208251138U (en) | A kind of communication pole and tower foundation using self-locking anchor bar | |
| CN207525618U (en) | A kind of prestress anchorage system with compression spring |
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: 20140409 Termination date: 20170823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |