CN103132514B - Detent type anchor rod - Google Patents
Detent type anchor rod Download PDFInfo
- Publication number
- CN103132514B CN103132514B CN201110391519.3A CN201110391519A CN103132514B CN 103132514 B CN103132514 B CN 103132514B CN 201110391519 A CN201110391519 A CN 201110391519A CN 103132514 B CN103132514 B CN 103132514B
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- CN
- China
- Prior art keywords
- anchor rod
- wall
- rod body
- detent type
- anchoring
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- Expired - Fee Related
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Abstract
The invention relates to a detent type anchor rod which comprises an anchor rod body, a base platform, a base plate and a nut. The top end of the anchor rod body sequentially penetrates through the base platform and the base plate to be connected with the nut. Axial grooves penetrating through the outer wall are formed along the circumference direction of the outer wall at internals, wherein the outer wall is connected with the bottom end of the anchor rod body. Plastic explosive is filled in the outer wall, and is filled with a detonator. The detent type anchor rod is simple in structure, low in cost, capable of improving pulling resistance of the anchor rod, and at the same time, capable of preventing rock soil anchoring from being damaged due to the facts that the anchor rod is pulled out from grouting and the like. Stability of a rock soil body is strengthened, safety of an anchoring tunnel, a side slope, a deep foundation pit and the like is greatly strengthened, and the detent type anchor rod can be widely applied to the anchoring of the tunnel, the side slope, the deep foundation pit and the like.
Description
Technical field
The present invention relates to Anchorage Technology, particularly relate to a kind of Detent type anchor rod.
Background technology
Ground anchorage is the anchor pole by burying underground in the earth formation, stratum is locked together tightly, rely on the interaction of anchor pole-injecting cement paste-hole wall ground muscle power, transfer and improve self-strength and the self-stable ability of Rock And Soil, to improve stress state, ensure the stable of outside Rock And Soil, thus guarantee the technology of engineering safety.The application of Anchorage Technology in the engineering relevant with ground can trace back to for 19 end of the centurys, along with the development of its theoretical research and engineer applied, Anchorage Technology has been widely used in the departments such as mine, water conservancy, water power, highway, railway, municipal administration, urban construction, geology, military project, as a kind of ideal support form, underground construction, slope project, deep-foundation pit engineering etc. stable in play a significant role.
Ground anchorage is not only subject to the impact of formation lithology, Rock-soil Mass Structure, geological structure, hydrogeology etc., and also may be subject to the effect of violent earthquake, they all constitute a threat to the safety of ground anchorage.
Between the construction and run phrase of ground anchorage, anchor pole is extracted from injecting cement paste, anchor pole is extracted from anchor hole together with injecting cement paste is two kinds of ground anchorage mode of failure the most basic, they all can cause ground anchorage to lose efficacy, and bring hidden danger to engineering safety, thus the uplift resistance that restriction anchor pole can provide.Thus, when the uplift resistance needing to provide is larger, the common anchor rod anchored needs that can not meet engineering, become the bottleneck of restriction Anchorage Technology application and development, how to improve the loading transfer mechanism of ground anchorage, overcome the drawback of conventional friction type anchoring, become the fundamental way improving anti-pulling of anchor bar.
Summary of the invention
Technical problem to be solved by this invention is to provide the Detent type anchor rod that a kind of structure is simple, improve anti-pulling of anchor bar.
For solving the problem, a kind of Detent type anchor rod of the present invention, is characterized in that: it comprises anchor rod body, pad, backing plate and nut; The top of described anchor rod body connects together with described nut through described pad, described backing plate successively; The outer wall be connected with the bottom of described anchor rod body has the axial groove penetrating described outer wall at equal intervals along circumferential direction; Be filled with plastic explosive in described outer wall, this plastic explosive is equipped with primer detonator.
The present invention compared with prior art has the following advantages:
1, in the present invention, detonation makes Rock And Soil by densification, improves the physical and mechanical property of Rock And Soil, improves its stability, simultaneously, detonation pushes to surrounding the outer wall be connected with anchor pole bottom open formation ratchet, thus improve anti-pulling of anchor bar, optimize and improve the mechanical property of anchoring significantly, common friction-type anchoring is made to change into friction-pressure bonding type anchoring, both can prevent anchor pole from extracting from anchor hole together with injecting cement paste---namely anchor pole destroys with the contact interface of Rock And Soil together with injecting cement paste edge, the ground anchorage that simultaneously also can prevent that anchor pole from extracting from injecting cement paste etc. destroys, thus strengthen the stability of Rock And Soil, make anchoring tunnel, side slope, the safety of deep foundation ditch etc. is greatly enhanced.
2, simple, with low cost, the easy construction of structure of the present invention, can be widely used in the anchoring of tunnel, side slope, deep foundation ditch etc.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 to have anchor pole bottom and institute's dress plastic explosive schematic diagram of axial groove at equal intervals for the present invention along circumferential direction.
Fig. 3 to have anchor pole bottom and the institute dress plastic explosive shaft section figure of axial groove at equal intervals for the present invention along circumferential direction.
Fig. 4 is bottom of the present invention shaft section schematic diagram.
In figure: the 8-ratchet 9-pad 10-backing plate 11-nut 12-plastic explosive of 1-Rock And Soil 2-boring 3-cavity 4-outer wall 5-axial groove 6-anchor rod body 7-bottom.
Detailed description of the invention
As shown in figures 1-4, Detent type anchor rod, it comprises anchor rod body 6, pad 9, backing plate 10 and nut 11.The top of anchor rod body 6 connects together with nut 11 through pad 9, backing plate 10 successively; The outer wall 4 be connected with the bottom 7 of anchor rod body 6 has the axial groove 5 penetrating described outer wall 4 at equal intervals along circumferential direction; Be filled with plastic explosive 12 in outer wall 4, this plastic explosive 12 is equipped with primer detonator.
During use, (1) carries out boring 2 by designing requirement to Rock And Soil 1; (2) utilize explosive to implement controlled blasting reaming at the bottom of boring 2 hole, make to form cavity 3 at the bottom of boring 2 hole; (3) bottom 7 of anchor rod body 6 is placed in cavity 3 at the bottom of boring 2 hole; (4) detonate plastic explosive 12, blast produces strong effect to the outer wall 4 that anchor rod body 6 bottom 7 has axial groove 5, make outer wall 4 separately form ratchet 8 to surrounding, cause bottom 7 expanded of anchor rod body 6, thus produce the anchor rod body 6 with ratchet 8; (5) to boring 2 slip casting, carry out anchor rod anchored.
Claims (1)
1. a Detent type anchor rod, is characterized in that: it comprises anchor rod body (6), pad (9), backing plate (10) and nut (11); The top of described anchor rod body (6) connects together with described nut (11) through described pad (9), described backing plate (10) successively; The outer wall (4) be connected with the bottom (7) of described anchor rod body (6) has along circumferential direction the axial groove (5) penetrating described outer wall (4) at equal intervals; Be filled with plastic explosive (12) in described outer wall (4), this plastic explosive (12) is equipped with primer detonator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110391519.3A CN103132514B (en) | 2011-11-30 | 2011-11-30 | Detent type anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110391519.3A CN103132514B (en) | 2011-11-30 | 2011-11-30 | Detent type anchor rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103132514A CN103132514A (en) | 2013-06-05 |
| CN103132514B true CN103132514B (en) | 2015-07-15 |
Family
ID=48492920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110391519.3A Expired - Fee Related CN103132514B (en) | 2011-11-30 | 2011-11-30 | Detent type anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103132514B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268593A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | Star member-anchor pole-ball basis and its construction method |
| CN107268587A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | Anchor pole-ball-star member basis and its construction method |
| CN107268588A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | A kind of anchor pole-ball-star member basis and its construction method |
| CN107268654A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | A kind of upper plate-anchor pole-ball basis and its construction method |
| CN107268589A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | One bulb-anchor pole-star member basis and its construction method |
| CN107268651B (en) * | 2016-04-09 | 2023-09-01 | 河南城建学院 | Anchor rod-star-shaped member-ball foundation and construction method thereof |
| CN107268592A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | A kind of star member-anchor pole-ball basis and its construction method |
| CN107268656A (en) * | 2016-04-09 | 2017-10-20 | 河南城建学院 | Anchor pole-star member-ball basis and its construction method |
| CN107740410B (en) * | 2017-10-23 | 2023-04-04 | 山东建筑大学 | Full-length prestressed anchorage support device and process capable of combining and expanding internal anchoring body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002081866A1 (en) * | 2001-03-26 | 2002-10-17 | Örsta Staalindustri As | Rock bolt |
| CN2579953Y (en) * | 2002-05-08 | 2003-10-15 | 武汉武大巨成加固实业有限公司 | Instantaneous self locking prestress anchor rod for medium and long explosive extension |
| CN101078350A (en) * | 2007-06-30 | 2007-11-28 | 山西焦煤集团有限责任公司 | High-strength integral composite material anchor shaft |
| CN101235645A (en) * | 2007-01-30 | 2008-08-06 | 李乐 | Reclaiming type anchor bar |
| CN201367910Y (en) * | 2009-03-24 | 2009-12-23 | 于守东 | Composite supporting anchor bolt |
| CN202359557U (en) * | 2011-11-30 | 2012-08-01 | 兰州大学 | Pawl type anchor rod |
-
2011
- 2011-11-30 CN CN201110391519.3A patent/CN103132514B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002081866A1 (en) * | 2001-03-26 | 2002-10-17 | Örsta Staalindustri As | Rock bolt |
| CN2579953Y (en) * | 2002-05-08 | 2003-10-15 | 武汉武大巨成加固实业有限公司 | Instantaneous self locking prestress anchor rod for medium and long explosive extension |
| CN101235645A (en) * | 2007-01-30 | 2008-08-06 | 李乐 | Reclaiming type anchor bar |
| CN101078350A (en) * | 2007-06-30 | 2007-11-28 | 山西焦煤集团有限责任公司 | High-strength integral composite material anchor shaft |
| CN201367910Y (en) * | 2009-03-24 | 2009-12-23 | 于守东 | Composite supporting anchor bolt |
| CN202359557U (en) * | 2011-11-30 | 2012-08-01 | 兰州大学 | Pawl type anchor rod |
Non-Patent Citations (1)
| Title |
|---|
| 管缝锚杆在软岩巷道支护中的应用;张诚等;《江西煤炭科技》;20070630(第2期);第40-41页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103132514A (en) | 2013-06-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20201130 |