CN202359557U - Pawl type anchor rod - Google Patents

Pawl type anchor rod Download PDF

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Publication number
CN202359557U
CN202359557U CN2011204936953U CN201120493695U CN202359557U CN 202359557 U CN202359557 U CN 202359557U CN 2011204936953 U CN2011204936953 U CN 2011204936953U CN 201120493695 U CN201120493695 U CN 201120493695U CN 202359557 U CN202359557 U CN 202359557U
Authority
CN
China
Prior art keywords
anchor rod
rod
anchor
nut
pawl type
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.)
Withdrawn - After Issue
Application number
CN2011204936953U
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Chinese (zh)
Inventor
言志信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanzhou University
Original Assignee
Lanzhou University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lanzhou University filed Critical Lanzhou University
Priority to CN2011204936953U priority Critical patent/CN202359557U/en
Application granted granted Critical
Publication of CN202359557U publication Critical patent/CN202359557U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model relates to a pawl type anchor rod, which comprises a rod body of the anchor rod, a padding table, a padding plate and a nut. The top end of the rod body of the anchor rod sequentially penetrates through the padding table and the padding plate and is connected with the nut together; axial grooves penetrating through the outer wall are formed on the outer wall connected with the bottom end of the rod body of the anchor rod at equal intervals along the perimeter direction; and plastic-type explosive is filled in the outer wall, and the plastic-type explosive is provided with a primer detonator. The pawl type anchor rod disclosed by the utility model is simple in structure and low in cost, and can improve the withdrawal resistance of the anchor rod, simultaneously prevent damaging the anchorage of rock and soil when the anchor rod is pulled out of a grouted body and the like, further enhance the stability of a rock and soil body, greatly enhance the safety of anchored tunnels, side slopes, deep foundation pits and the like, and be widely applied to anchoring the tunnels, the side slopes, the deep foundation pits and the like.

Description

A kind of pawl type anchor pole
Technical field
The utility model relates to the ground anchorage technology, relates in particular to a kind of pawl type anchor pole.
Background technology
Ground anchorage is through being embedded in the anchor pole in the stratum; The stratum is locked together tightly; Rely on the interaction of anchor pole-injecting cement paste-hole wall ground muscle power, transfer and improve self intensity and self-stable ability of geotechnical body, to improve stress state; Guarantee the stable of outside geotechnical body, thereby guarantee the technology of engineering safety.The ground anchorage technology can trace back to for 19 end of the centurys in the application in engineering relevant with ground; Development along with its theoretical research and practical applications; The ground anchorage technology has been widely used in departments such as mine, water conservancy, water power, highway, railway, municipal administration, urban construction, geology, military project; As a kind of comparatively desirable support form, in underground construction, slope project, deep-foundation pit engineering etc. stable, play a significant role.
Ground anchorage not only receives the influence of formation lithology, Rock-soil Mass Structure, geological structure, hydrogeology etc., also possibly receive the effect of violent earthquake, and they all constitute a threat to the safety of ground anchorage.
Construction and run duration at 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, thereby the uplift resistance that the restriction anchor pole can provide to engineering safety.Thereby; When the uplift resistance that provides when needs is big; The common anchor rod anchored needs that can not satisfy engineering become the bottleneck that restricts ground anchorage technical application and development, how to improve the Load Transfer mechanism of ground anchorage; Overcome the drawback of common friction-type anchoring, become the fundamental way that improves anti-pulling of anchor bar.
The utility model content
The utility model technical problem to be solved provides a kind of simple in structure, pawl type anchor pole of improving anti-pulling of anchor bar.
For addressing the above problem, the described a kind of pawl type anchor pole of the utility model is characterized in that: it comprises anchor rod body, pad platform, backing plate and nut; Said pad platform is passed on the top of said anchor rod body successively, said backing plate connects together with said nut; The outer wall that links to each other with the bottom of said anchor rod body uniformly-spaced has the axial groove that penetrates said outer wall along circumferential direction; Be filled with plastic explosive in the said outer wall, this plastic explosive is equipped with primer detonator.
The utility model compared with prior art has the following advantages:
1, detonation makes geotechnical body by densification in the utility model, has improved the physical and mechanical property of geotechnical body, has improved its stability; Simultaneously; The outer wall that detonation will link to each other with the anchor pole bottom to around push the formation ratchet open; Thereby improved anti-pulling of anchor bar, optimized and improved the mechanical property of anchoring significantly, made common friction-type anchoring change into the compound anchoring of friction-pressure; Both can prevent that anchor pole from extracting from anchor hole together with injecting cement paste---be that anchor pole destroys together with the contact interface of injecting cement paste edge with geotechnical body; The ground anchorage that also can prevent that anchor pole from extracting from injecting cement paste simultaneously etc. destroys, thereby has strengthened the stability of geotechnical body, and the safety of anchoring tunnel, side slope, deep foundation ditch etc. is strengthened greatly.
2, simple in structure, with low cost, the easy construction of the utility model can be widely used in the anchoring of tunnel, side slope, deep foundation ditch etc.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Fig. 2 uniformly-spaced has anchor pole bottom and institute's dress plastic explosive sketch map of axial groove along circumferential direction for the utility model.
Fig. 3 uniformly-spaced has the anchor pole bottom and the dress plastic explosive shaft section figure of institute of axial groove along circumferential direction for the utility model.
Fig. 4 is the utility model bottom shaft section sketch map.
Among the figure: the 8-ratchet 9-pad platform 10-backing plate 11 nut 12-plastic explosives of 1-geotechnical body 2-boring 3-cavity 4-outer wall 5-axial groove 6-anchor rod body 7-bottom.
The specific embodiment
Shown in Fig. 1~4, the pawl type anchor pole, it comprises anchor rod body 6, pad platform 9, backing plate 10 and nut 11.Pad platform 9 is passed on the top of anchor rod body 6 successively, backing plate 10 connects together with nut 11; The outer wall 4 that links to each other with the bottom 7 of anchor rod body 6 uniformly-spaced has the axial groove 5 that penetrates said outer wall 4 along circumferential direction; Be filled with plastic explosive 12 in the outer wall 4, this plastic explosive 12 is equipped with primer detonator.
During use, (1) holes 2 by designing requirement to geotechnical body 1; (2) implement the controlled blasting reaming at the bottom of utilizing explosive to 2 holes of holing, form cavity 3 at the bottom of making boring 2 holes; (3) bottom 7 of anchor rod body 6 is placed cavity 3 at the bottom of boring 2 holes; (4) plastic explosive 12 that detonates, blast produces strong effect to the outer wall 4 that anchor rod body 6 bottoms 7 have axial groove 5, make outer wall 4 to around separately form ratchet 8, cause the bottom 7 of anchor rod body 6 to be able to enlarge, thereby produce the anchor rod body 6 that has ratchet 8; (5), carry out anchor rod anchored getting final product to 2 slip castings of holing.

Claims (1)

1. pawl type anchor pole is characterized in that: it comprises anchor rod body (6), pad platform (9), backing plate (10) and nut (11); Said pad platform (9) is passed on the top of said anchor rod body (6) successively, said backing plate (10) connects together with said nut (11); The outer wall (4) that links to each other with the bottom (7) of said anchor rod body (6) uniformly-spaced has the axial groove (5) that penetrates said outer wall (4) along circumferential direction; Be filled with plastic explosive (12) in the said outer wall (4), this plastic explosive (12) is equipped with primer detonator.
CN2011204936953U 2011-11-30 2011-11-30 Pawl type anchor rod Withdrawn - After Issue CN202359557U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204936953U CN202359557U (en) 2011-11-30 2011-11-30 Pawl type anchor rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204936953U CN202359557U (en) 2011-11-30 2011-11-30 Pawl type anchor rod

Publications (1)

Publication Number Publication Date
CN202359557U true CN202359557U (en) 2012-08-01

Family

ID=46570752

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204936953U Withdrawn - After Issue CN202359557U (en) 2011-11-30 2011-11-30 Pawl type anchor rod

Country Status (1)

Country Link
CN (1) CN202359557U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132514A (en) * 2011-11-30 2013-06-05 兰州大学 Detent type anchor rod
CN103343536A (en) * 2013-07-08 2013-10-09 山东科技大学 Detent-type soil anchor rod and application thereof
CN103774656A (en) * 2012-10-26 2014-05-07 兰州大学 Sequential plug tube type anchor rod
CN103774655A (en) * 2012-10-26 2014-05-07 兰州大学 Cake-shaped reinforced feather-key-resistant tubular type anchor rod
CN103774661A (en) * 2012-10-26 2014-05-07 兰州大学 Inverted bolt tubular anchor rod
CN103774651A (en) * 2012-10-26 2014-05-07 兰州大学 Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod
CN103774657A (en) * 2012-10-26 2014-05-07 兰州大学 Anchor rod for reamed columnar anti-sliding key, grouting and anchoring
CN105507930A (en) * 2015-12-14 2016-04-20 山西潞安环保能源开发股份有限公司 Method utilizing adjustable anchor rod to support rock roadway
CN109458127A (en) * 2018-09-14 2019-03-12 太原理工大学 A kind of three-level explosion, multi-direction soft rock grouting strengthening method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132514B (en) * 2011-11-30 2015-07-15 兰州大学 Detent type anchor rod
CN103132514A (en) * 2011-11-30 2013-06-05 兰州大学 Detent type anchor rod
CN103774651B (en) * 2012-10-26 2016-01-20 兰州大学 Olive-shaped antiskid key slip casting anchoring support explosion anchor pole
CN103774655A (en) * 2012-10-26 2014-05-07 兰州大学 Cake-shaped reinforced feather-key-resistant tubular type anchor rod
CN103774661A (en) * 2012-10-26 2014-05-07 兰州大学 Inverted bolt tubular anchor rod
CN103774651A (en) * 2012-10-26 2014-05-07 兰州大学 Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod
CN103774657A (en) * 2012-10-26 2014-05-07 兰州大学 Anchor rod for reamed columnar anti-sliding key, grouting and anchoring
CN103774655B (en) * 2012-10-26 2016-03-30 兰州大学 Round pie reinforcement antiskid key pipe anchor rod
CN103774656A (en) * 2012-10-26 2014-05-07 兰州大学 Sequential plug tube type anchor rod
CN103774661B (en) * 2012-10-26 2015-12-16 兰州大学 Anti-bolt pipe anchor rod
CN103774656B (en) * 2012-10-26 2015-12-09 兰州大学 Along bolt pipe anchor rod
CN103343536A (en) * 2013-07-08 2013-10-09 山东科技大学 Detent-type soil anchor rod and application thereof
CN103343536B (en) * 2013-07-08 2016-05-18 山东科技大学 Pawl type soil bolt and application thereof
CN105507930A (en) * 2015-12-14 2016-04-20 山西潞安环保能源开发股份有限公司 Method utilizing adjustable anchor rod to support rock roadway
CN105507930B (en) * 2015-12-14 2017-11-10 山西潞安环保能源开发股份有限公司 A kind of method for protecting support using adjustable anchor rod to Rock Workings Support
CN109458127A (en) * 2018-09-14 2019-03-12 太原理工大学 A kind of three-level explosion, multi-direction soft rock grouting strengthening method

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
RGAV Abandon patent right to avoid regrant
AV01 Patent right actively abandoned

Granted publication date: 20120801

Effective date of abandoning: 20150715