CN2041360U - Snake type telescopic anchoring-bolt - Google Patents

Snake type telescopic anchoring-bolt Download PDF

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Publication number
CN2041360U
CN2041360U CN 88204483 CN88204483U CN2041360U CN 2041360 U CN2041360 U CN 2041360U CN 88204483 CN88204483 CN 88204483 CN 88204483 U CN88204483 U CN 88204483U CN 2041360 U CN2041360 U CN 2041360U
Authority
CN
China
Prior art keywords
bolt
anchoring
snake type
anchor
snakelike
Prior art date
Application number
CN 88204483
Other languages
Chinese (zh)
Inventor
何唐镛
伍晓军
代岱
Original Assignee
西安矿业学院
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 西安矿业学院 filed Critical 西安矿业学院
Priority to CN 88204483 priority Critical patent/CN2041360U/en
Publication of CN2041360U publication Critical patent/CN2041360U/en

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Abstract

The utility model relates to a snake type telescopic anchoring-bolt, which is applicable for the telescopic anchoring-bolt under the large deformation condition. Because the anchoring-bolt body is divided into a snake type segment and a straight rod segment, a protective sleeve is added in the snake type segment, and the screw thread part of the anchor-bolt processes the quenching treatment, so the utility model not only makes the anchor-bolt have the telescopic function, but also can prevent the shear force interference and makes the anchoring force reinforce, so the snake type telescopic anchoring-bolt is especially suitable for being used in the soft and crushed rock formation. Simultaneously, the utility model modle has the advantages of simple production, convenient installation, low cost and extensive material source.

Description

Engineering is carried out the extending anchor pole of supporting under the utility model possession to crumbly rock.
More existing pressure-relieving achor bars, as Russian Patent SU1073469A, China patent GG(bulletin) 86208821, though telescopic action is preferably arranged, structure is comparatively complicated, uses special rolling-mill section, the cost height, processing difficulties, adjustable part is malfunctioning sometimes under shearing action.
The purpose of this utility model is to design a kind of being suitable under the big condition of all kinds of crumbly rock of the underground construction amount of shifting near, the extending anchor pole that enough supporting drags and anti-shearing are arranged, and it is simple in structure that anchor pole is had, material source is extensive, produce simple installation, the effect that cost is lower.
Solution of the present utility model is: the body of rod of snakelike anchor pole is made up of snakelike section 2 and straight bar section 5; and be added with the sleeve pipe 3 of snakelike section of protection; rock bolt head has screw thread and is equipped with nut and pad 1, and screw thread partly need carry out Quenching Treatment, to gain in strength; can be after making it stressed and damaged prior to snakelike section; sometimes in more complete or hard rock stratum,, also can not add protective casing 3 though the amount of shifting near is big; in addition, anchor bar body straight bar section afterbody can be tabular 7.
This snakelike extending anchor pole is compared with existing anchor pole, has country rock is adapted to extensively, and bearing capacity is big, and the characteristics that do not need repairing are especially simple in structure, and fabrication and installation are comparatively convenient, and raw material uses common iron, no specific (special) requirements.
Accompanying drawing is user mode figure of the present utility model.
Describe with reference to accompanying drawing: on country rock, cut a hole earlier during construction and get the anchor hole that adapts with rock-bolt length and sleeve pipe 3 diameters, after inserting anchor pole, with straight-bar 5 partial fixings of anchoring agent 6 with anchor bar body, and block the anchoring agent with anchor pole catch 4, avoid rubble and anchoring agent to enter sleeve pipe 3, influence the elongation of snakelike section 2 of anchor bar body, rock bolt head has screw thread, this screw thread needs through Quenching Treatment, to increase its intensity, and be furnished with backing plate and nut 1, fastening nut after the anchoring agent is condensed, and cooperate flexible anchor and spray net to use, can make anchor pole have reliable anchorage effect, this snakelike anchor pole can use the section steel manufacture in various cross sections, its cross section type, size, snakelike section and straight bar section length are all determined the back after tested according to concrete rock property, test factually, in the soft broken rock, this bolt diameter is generally 18 millimeters of φ 14-φ, and its length is 1.5-2.5 rice.
Accompanying drawing and above-mentioned explanation both be the utility model most preferred embodiment.

Claims (4)

1, a kind of extending snakelike anchor pole is characterized in that anchor bar body is made up of snakelike section 2 and straight bar section 5.
2, snakelike anchor pole according to claim 1 is characterized in that and can add protective casing 3 for snakelike section at anchor pole.
3, snakelike anchor pole according to claim 1 is characterized in that the screw thread of anchor bar body head partly need carry out Quenching Treatment.
4, snakelike anchor pole according to claim 1 and 2 is characterized in that the afterbody of anchor pole straight bar section can be tabular 7.
CN 88204483 1988-04-16 1988-04-16 Snake type telescopic anchoring-bolt CN2041360U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88204483 CN2041360U (en) 1988-04-16 1988-04-16 Snake type telescopic anchoring-bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88204483 CN2041360U (en) 1988-04-16 1988-04-16 Snake type telescopic anchoring-bolt

Publications (1)

Publication Number Publication Date
CN2041360U true CN2041360U (en) 1989-07-19

Family

ID=4839076

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88204483 CN2041360U (en) 1988-04-16 1988-04-16 Snake type telescopic anchoring-bolt

Country Status (1)

Country Link
CN (1) CN2041360U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929347A (en) * 2010-08-17 2010-12-29 中南大学 Coordinated-deformation energy-absorption anchor rod suitable for mining high-stress large-deformation rock mass
CN102536278A (en) * 2012-01-15 2012-07-04 山东科技大学 Progressive yielding combined-type extensible anchor rod and construction method thereof
CN101711305B (en) * 2007-04-17 2013-04-17 澳大利亚应用研究集团有限公司 Plastic rock-bolt or dowel and method of manufacture of the same
CN105736023A (en) * 2016-02-02 2016-07-06 重庆大学 Large-deformation energy-absorption anchor rod
CN107489437A (en) * 2017-09-26 2017-12-19 湖南科技大学 A kind of anchor pole and anchoring process for deep tunnel soft-rock slope

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711305B (en) * 2007-04-17 2013-04-17 澳大利亚应用研究集团有限公司 Plastic rock-bolt or dowel and method of manufacture of the same
CN101929347A (en) * 2010-08-17 2010-12-29 中南大学 Coordinated-deformation energy-absorption anchor rod suitable for mining high-stress large-deformation rock mass
CN102536278A (en) * 2012-01-15 2012-07-04 山东科技大学 Progressive yielding combined-type extensible anchor rod and construction method thereof
CN105736023A (en) * 2016-02-02 2016-07-06 重庆大学 Large-deformation energy-absorption anchor rod
CN107489437A (en) * 2017-09-26 2017-12-19 湖南科技大学 A kind of anchor pole and anchoring process for deep tunnel soft-rock slope

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PB01 Publication
C06 Publication
WD01 Invention patent application deemed withdrawn after publication
C20 Patent right or utility model deemed to be abandoned or is abandoned