CN201627200U - Blockage-slurry strengthening earth anchor - Google Patents
Blockage-slurry strengthening earth anchor Download PDFInfo
- Publication number
- CN201627200U CN201627200U CN2009202910862U CN200920291086U CN201627200U CN 201627200 U CN201627200 U CN 201627200U CN 2009202910862 U CN2009202910862 U CN 2009202910862U CN 200920291086 U CN200920291086 U CN 200920291086U CN 201627200 U CN201627200 U CN 201627200U
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- China
- Prior art keywords
- anchor
- section
- grouting pipe
- anchor rod
- anchoring section
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Abstract
The utility model discloses a blockage-slurry strengthening earth anchor. The earth anchor comprises an anchor rod; the anchor rod comprises a free section and an anchoring section; the anchoring section of the anchor rod is provided with spinous rib bunches which are arranged equidistantly; the spinous rib bunches are uniformly distributed along the circumference of the cross section of the anchoring section of the anchor rod; equidistant positioning rings are also fixed on the anchoring section of the anchor rod; the anchor rod penetrates the centers of the positioning rings; a slurry-blocking inflation plug is sleeved at the boundary of the free section and the anchoring section of the anchor rod; a secondary grouting pipe, a primary grouting pipe and an inflation pipe penetrate the slurry-blocking inflation plug; the secondary grouting pipe is positioned at the upper ends of the positioning rings; and the primary grouting pipe is positioned at the right lower part of the anchor rod in the positioning rings. The utility model improves the constitution of a reinforcing steel bar on the anchoring section of a pull rod, and increases the contact area of reinforcing steel bars of the anchoring section; and by conducting secondary grouting during grouting and by designing the inflatable slurry-blocking device, the utility model ensures grouting pressure and solve the problem of deep hole slurry blockage; and the construction is easier, simpler and more efficient.
Description
Technical field
The utility model relates to a kind of native anchor, relates in particular to the powerful native anchor of a kind of stifled slurry, belongs to building field.
Background technology
Traditional soil bolt construction is: after the boring pull bar is put into the hole, carry out once then or secondary grouting, make anchor pole form anchoring section to guarantee the stable of structure, the problem of existence is the adhesion stress deficiency that pull bar and anchoring body mortar form; The frictional force deficiency that soil layer around anchoring body mortar and the boring forms; Cause pull bar or anchor pole slip.Main cause is: 1, the single contact area deficiency with the anchoring body mortar of the structure of pull bar makes and can not form enough adhesion stresss between pull bar and the anchoring body.2, grouting pressure deficiency during slip casting, soil layer hole and crack are not filled by slurry fully around the boring, make between anchoring body and the soil layer on every side and can not form enough frictional force.
Summary of the invention
At the deficiencies in the prior art, technical problem to be solved in the utility model is, provides a kind of stifled slurry powerful native anchor, solved the pull bar and the anchoring body adhesion stress deficiency of native anchor anchoring section, the anchoring body and the hypodynamic problem of friction of soil layer on every side.
For solveing the technical problem, technical solution adopted in the utility model is: the powerful native anchor of a kind of stifled slurry, comprise anchor pole, and described anchor pole comprises free section and anchoring section; Described anchor rod anchored section is provided with equally spaced thorn muscle bundle; Described thorn muscle bundle is uniform along anchor rod anchored section cross-sectional circumferential; Described anchor rod anchored section also is fixed with equally spaced centring ring; Described anchor pole is through the centring ring center; The boundary of free section of described anchor pole and anchoring section is with stifled slurry Inflation plug; Run through in the described stifled slurry Inflation plug and be provided with secondary grouting pipe, once grouting pipe and gas tube; Described secondary grouting pipe is positioned at the centring ring upper end; Described once grouting pipe is positioned at the right lower quadrant of centring ring anchor pole.
Optimize, the powerful native anchor of described a kind of stifled slurry, the part that described secondary grouting pipe is positioned at anchoring section is provided with aperture.
Optimize, the powerful native anchor of described a kind of stifled slurry, the intrafascicular every adjacent two root thorn muscle of the described thorn muscle angle of being separated by is 120 degree.
Optimize, the powerful native anchor of described a kind of stifled slurry, the spacing between the described centring ring is 2m.
Optimize, the powerful native anchor of described a kind of stifled slurry, the spacing between the described thorn muscle bundle is 30cm.
Optimize, the powerful native anchor of described a kind of stifled slurry, the pipe end of described once grouting pipe is apart from the terminal 50cm of anchor pole; The pipe end of described secondary grouting pipe is apart from the terminal 80-100cm of anchor pole.
The utility model the is perfect reinforcement constitution of rod anchor section has increased anchoring section reinforcing bar contact area; Implement secondary grouting during slip casting and designed the stifled sizing device of air filling type, guaranteed grouting pressure, overcome the problem of the stifled slurry of deep hole, and construction is more easy to operate, simple efficient.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the partial enlarged drawing of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Reference is as Fig. 1, and the powerful native anchor of a kind of stifled slurry comprises anchor pole 6, and described anchor pole 6 comprises free section 8 and anchoring section 9; Described anchor rod anchored section 9 is provided with equally spaced thorn muscle bundle 10; Described thorn muscle bundle 10 is uniform along anchor pole 6 anchoring sections 9 cross-sectional circumferential; Described anchor rod anchored section 9 also is fixed with equally spaced centring ring 3; Described anchor pole 6 is through centring ring 3 centers; The boundary of free section 8 of described anchor pole and anchoring section 9 is with stifled slurry Inflation plug 4; Run through in the described stifled slurry Inflation plug 4 and be provided with secondary grouting pipe 1, once grouting pipe 2 and gas tube 5; Described secondary grouting pipe 1 is positioned at centring ring 3 upper ends; Described once grouting pipe 2 is positioned at the right lower quadrant of centring ring 3 anchor poles 6.The part that described secondary grouting pipe is positioned at anchoring section is provided with aperture.The intrafascicular every adjacent two root thorn muscle of the described thorn muscle angle of being separated by is 120 degree.Spacing between the described centring ring is 2cm.Spacing between the described thorn muscle bundle is 30cm.The pipe end of described once grouting pipe is apart from the terminal 50cm of anchor pole; The pipe end of described secondary grouting pipe is apart from the terminal 80-100cm of anchor pole.
During concrete enforcement, centring ring 3 is installed on the anchoring section 9 of pull bar 6 and welding fixes, the spacing between the centring ring 3 is wanted about the general 2m of size to fit.Around pull bar 6 anchoring sections, weld other thorn muscle 7 of less reinforcing bar level, the direction that bends up of thorn muscle 7 bends up about 45 ° of angle as shown in drawings, each weld will weld 3 root thorn muscle 7 makes it be 120 ° of layouts, and the spacing between each weld is decided on requirement for bearing capacity, generally about 30cm.Secondary grouting pipe 1 and once grouting pipe 2 are passed stifled slurry Inflation plug 4 to be fixed on the centring ring 3, the position of laying as shown in drawings, the pipe end of once grouting pipe apart from the terminal 50cm of anchor pole about, the pipe end of secondary grouting pipe apart from the terminal 80-100cm of anchor pole about, with the 1 bottom outlet shutoff of secondary grouting pipe and in anchoring section 9, secondary grouting pipe 1 is made foraminate floral tube.To block up slurry Inflation plug 4 and be enclosed within on the pull bar 6, the free section 8 that is adjusted to anchor pole 6 then is with the boundary of anchoring section 9 and transfer gas tube 5 suitable.After above-mentioned operation is finished, anchor pole 6 integral body are put into the hole rotate to regulate and to make secondary grouting pipe 1 be positioned at the top of boring, carry out once grouting then, when treating slurry near the line of demarcation of the open die forging 8 of anchor pole 6 and anchoring section 9, the gas in the boring is extruded substantially.At this moment will block up slurry Inflation plug 4 sufficient gas with charger by gas tube 5 and make the very big pressure of its contact surface generation form stifled slurry plug, proceed once grouting then.Treat that a slurry intensity carries out secondary grouting when reaching the 4-5MPa left and right sides.When the slurry of secondary grouting solidifies, the gas in the stifled slurry Inflation plug 4 is bled off by gas tube 5, will block up slurry Inflation plug 4 then and pull out.
Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement all should belong to protection domain of the present utility model.
Claims (6)
1. the powerful native anchor of stifled slurry comprises anchor pole, and it is characterized in that: described anchor pole comprises free section and anchoring section; Described anchor rod anchored section is provided with equally spaced thorn muscle bundle; Described thorn muscle bundle is uniform along anchor rod anchored section cross-sectional circumferential; Described anchor rod anchored section also is fixed with equally spaced centring ring: described anchor pole is through the centring ring center: the boundary of free section of described anchor pole and anchoring section is with stifled slurry Inflation plug; Run through in the described stifled slurry Inflation plug and be provided with secondary grouting pipe, once grouting pipe and gas tube; Described secondary grouting pipe is positioned at the centring ring upper end; Described once grouting pipe is positioned at the right lower quadrant of centring ring anchor pole.
2. the powerful native anchor of a kind of stifled slurry according to claim 1, it is characterized in that: the part that described secondary grouting pipe is positioned at anchoring section is provided with aperture.
3. the powerful native anchor of a kind of stifled slurry according to claim 1 is characterized in that: the intrafascicular every adjacent two root thorn muscle of the described thorn muscle angle of being separated by is 120 degree.
4. the powerful native anchor of a kind of stifled slurry according to claim 1, it is characterized in that: the spacing between the described centring ring is 2m.
5. the powerful native anchor of a kind of stifled slurry according to claim 1 is characterized in that: the spacing between the described thorn muscle bundle is 30cm.
6. the powerful native anchor of a kind of stifled slurry according to claim 1 is characterized in that: the pipe end of described once grouting pipe is apart from the terminal 50cm of anchor pole; The pipe end of described secondary grouting pipe is apart from the terminal 80-100cm of anchor pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202910862U CN201627200U (en) | 2009-12-29 | 2009-12-29 | Blockage-slurry strengthening earth anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202910862U CN201627200U (en) | 2009-12-29 | 2009-12-29 | Blockage-slurry strengthening earth anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627200U true CN201627200U (en) | 2010-11-10 |
Family
ID=43058591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202910862U Expired - Fee Related CN201627200U (en) | 2009-12-29 | 2009-12-29 | Blockage-slurry strengthening earth anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201627200U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544550A (en) * | 2016-02-07 | 2016-05-04 | 北京市勘察设计研究院有限公司 | Anti-gravity pressurizing grouting method using air bag plugging device |
| CN105696599A (en) * | 2016-02-06 | 2016-06-22 | 北京市勘察设计研究院有限公司 | Pressurizing grouting method utilizing air bag blockage device |
| CN106522220A (en) * | 2017-01-03 | 2017-03-22 | 北京航勘建设有限公司 | Partitioned high-pressure hole blockage grouting anchor rod and grouting method thereof |
| CN106522580A (en) * | 2017-01-03 | 2017-03-22 | 北京航勘建设有限公司 | Compressible hole blocking device for constructional engineering and construction method thereof |
| CN107843553A (en) * | 2017-10-12 | 2018-03-27 | 中国矿业大学 | A kind of coal body and Anchor Agent interface binding intensity method of testing |
-
2009
- 2009-12-29 CN CN2009202910862U patent/CN201627200U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696599A (en) * | 2016-02-06 | 2016-06-22 | 北京市勘察设计研究院有限公司 | Pressurizing grouting method utilizing air bag blockage device |
| CN105696599B (en) * | 2016-02-06 | 2018-06-12 | 北京市勘察设计研究院有限公司 | A kind of grouting under pressure method by using air bag plugging device |
| CN105544550A (en) * | 2016-02-07 | 2016-05-04 | 北京市勘察设计研究院有限公司 | Anti-gravity pressurizing grouting method using air bag plugging device |
| CN106522220A (en) * | 2017-01-03 | 2017-03-22 | 北京航勘建设有限公司 | Partitioned high-pressure hole blockage grouting anchor rod and grouting method thereof |
| CN106522580A (en) * | 2017-01-03 | 2017-03-22 | 北京航勘建设有限公司 | Compressible hole blocking device for constructional engineering and construction method thereof |
| CN107843553A (en) * | 2017-10-12 | 2018-03-27 | 中国矿业大学 | A kind of coal body and Anchor Agent interface binding intensity method of testing |
| CN107843553B (en) * | 2017-10-12 | 2020-03-20 | 中国矿业大学 | Method for testing interface bonding strength of coal body and anchoring agent |
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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: 20101110 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |