CN204113316U - A kind of interval screw rod body formula large deformation anchor rod - Google Patents

A kind of interval screw rod body formula large deformation anchor rod Download PDF

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Publication number
CN204113316U
CN204113316U CN201420505977.4U CN201420505977U CN204113316U CN 204113316 U CN204113316 U CN 204113316U CN 201420505977 U CN201420505977 U CN 201420505977U CN 204113316 U CN204113316 U CN 204113316U
Authority
CN
China
Prior art keywords
large deformation
rod
screw rod
rock
interval
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
Application number
CN201420505977.4U
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Chinese (zh)
Inventor
张志强
陈方方
孙健
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.)
Xian University of Technology
Original Assignee
Xian University of Technology
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 Xian University of Technology filed Critical Xian University of Technology
Priority to CN201420505977.4U priority Critical patent/CN204113316U/en
Application granted granted Critical
Publication of CN204113316U publication Critical patent/CN204113316U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of interval screw rod body formula large deformation anchor rod, comprise the body of rod, the body of rod is successively through backing plate and tightening nut, and the body of rod is made up of straight bar section and screw rod spacer segment.This large deformation anchor rod is when reinforce adjoining rock generation large deformation, tension can extend and tensile failure model not occur itself, straight bar section spaced apart and screw rod section generation large deformation are with the large deformation of suitable for surrounding rock, in spiral section generation large deformation process, constantly can also absorb the ability of surrouding rock deformation, maintain the stable of country rock.In addition, this apparatus structure is simple, easy to operate, is easy to promote.

Description

A kind of interval screw rod body formula large deformation anchor rod
Technical field
The utility model belongs to geotechnical engineering anchoring field, is specifically related to a kind of interval screw rod body formula large deformation anchor rod.
Background technology
Often can run into the support issues of weak surrounding rock in the production of the deep-buried underground engineering such as colliery, tunnel and process of construction, because soft rock is out of shape greatly under high-ground stress effect, and the duration is long, therefore has higher requirement to supporting measure.At present, often the mode of the bolt support reinforce adjoining rock is adopted in engineering, but existing anchor pole usual suitable for surrounding rock deformability is more weak, or provides anchored force less, when soft rock mass deflection is large, the cementing emaciated face of anchoring is very easily caused to glue inefficacy, the surrender of Bolted Rock Masses body etc., make anchor rod anchored ability greatly reduce and imitate, and then cause surrouding rock stress rapid adjustment, energy release of surrounding rock speed is fast, cause supporting and protection structure to damage, easily burst accident occurs.
Utility model content
The purpose of this utility model is to provide a kind of interval screw rod body formula large deformation anchor rod, solves elongation per unit length that existing anchor pole exists low and can not meet the problem of roadway surrounding rock large deformation needs.
The technical scheme that the utility model adopts is: a kind of interval screw rod body formula large deformation anchor rod, comprises the body of rod, and the body of rod is successively through backing plate and tightening nut.
Feature of the present utility model is also,
The body of rod is made up of straight bar section and screw rod spacer segment.
The beneficial effects of the utility model are: a kind of interval screw rod body formula large deformation anchor rod, when reinforce adjoining rock generation large deformation, tension can extend and tensile failure model not occur itself, straight bar section spaced apart and screw rod section generation large deformation are with the large deformation of suitable for surrounding rock, in spiral section generation large deformation process, constantly can also absorb the ability of surrouding rock deformation, maintain the stable of country rock.In addition, this apparatus structure is simple, easy to operate, is easy to promote.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of interval of the utility model screw rod body formula large deformation anchor rod;
Fig. 2 is the using state figure of a kind of interval of the utility model screw rod body formula large deformation anchor rod.
In figure, the 1. body of rod, 2. backing plate, 3. tightening nut, 4. straight bar section, 5. screw rod section.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The structure of a kind of interval of the utility model screw rod body formula large deformation anchor rod as shown in Figure 1, comprises the body of rod 1, and the body of rod 1 is successively through backing plate 2 and tightening nut 3, and the body of rod 1 is made up of straight bar section 4 and screw rod section 5 interval.
During use, as shown in Figure 2, first the body of rod 1 is fixed on country rock aperture, then backing plate 2 is installed, be fixed with rotating nut 3, in the anchor pole course of work, first there is axial deformation in screw rod section 5 along anchor axial force direction in stressed anchor rod body 1, whole anchor rod body 1 further tension again after screw rod section is deformed into straight line, the tension that reaches capacity pull out force.In addition, the length designed according to screw rod section 5 and joint number, can control the size of maximum deformation quantity.
A kind of interval of the utility model screw rod body formula large deformation anchor rod, when reinforce adjoining rock generation large deformation, tension can extend and tensile failure model not occur itself, straight bar section spaced apart and screw rod section generation large deformation are with the large deformation of suitable for surrounding rock, in spiral section generation large deformation process, constantly can also absorb the ability of surrouding rock deformation, maintain the stable of country rock.In addition, this apparatus structure is simple, easy to operate, is easy to promote.

Claims (2)

1. an interval screw rod body formula large deformation anchor rod, is characterized in that, comprises the body of rod (1), and the described body of rod (1) is successively through backing plate (2) and tightening nut (3).
2. a kind of interval as claimed in claim 1 screw rod body formula large deformation anchor rod, it is characterized in that, the described body of rod (1) is made up of straight bar section (4) and screw rod section (5) interval.
CN201420505977.4U 2014-09-03 2014-09-03 A kind of interval screw rod body formula large deformation anchor rod Expired - Fee Related CN204113316U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420505977.4U CN204113316U (en) 2014-09-03 2014-09-03 A kind of interval screw rod body formula large deformation anchor rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420505977.4U CN204113316U (en) 2014-09-03 2014-09-03 A kind of interval screw rod body formula large deformation anchor rod

Publications (1)

Publication Number Publication Date
CN204113316U true CN204113316U (en) 2015-01-21

Family

ID=52330640

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420505977.4U Expired - Fee Related CN204113316U (en) 2014-09-03 2014-09-03 A kind of interval screw rod body formula large deformation anchor rod

Country Status (1)

Country Link
CN (1) CN204113316U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736024A (en) * 2016-02-02 2016-07-06 重庆大学 Self-adaptive energy-absorption anchor rod
CN105736023A (en) * 2016-02-02 2016-07-06 重庆大学 Large-deformation energy-absorption anchor rod
CN113718801A (en) * 2021-09-02 2021-11-30 王冲 Honeycomb soil nail soil body reinforcing accessory for improving slope stability

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736024A (en) * 2016-02-02 2016-07-06 重庆大学 Self-adaptive energy-absorption anchor rod
CN105736023A (en) * 2016-02-02 2016-07-06 重庆大学 Large-deformation energy-absorption anchor rod
CN113718801A (en) * 2021-09-02 2021-11-30 王冲 Honeycomb soil nail soil body reinforcing accessory for improving slope stability

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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: 20150121

Termination date: 20170903

CF01 Termination of patent right due to non-payment of annual fee