CN87207128U - Tubular friction tension anchoring-bolt - Google Patents
Tubular friction tension anchoring-bolt Download PDFInfo
- Publication number
- CN87207128U CN87207128U CN 87207128 CN87207128U CN87207128U CN 87207128 U CN87207128 U CN 87207128U CN 87207128 CN87207128 CN 87207128 CN 87207128 U CN87207128 U CN 87207128U CN 87207128 U CN87207128 U CN 87207128U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- rod
- stretch
- anchor pole
- tubular 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- Withdrawn
Links
- 239000011435 rock Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract 2
- 230000003068 static effect Effects 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Abstract
The utility model relates to a pipe type friction tension anchor rod, which is suitable for the support of wall rock of the underground engineering, comprising a rod body and a sleeve pipe. The pipe type friction tension anchor rod is characterized in that the head of the rod body is provided with a barrier member; the sleeve pipe is respectively formed by a travel sleeve pipe and a friction sleeve pipe which have different diameters and are connected; the rod body is pressed into the sleeve pipe through mechanical force. When the pulling force subjected by the rod body goes beyond the static friction of the rod body and the sleeve pipe, the rod body is pulled out with constant resistance; when the extension amount needed by the design is achieved, the barrier member plays a stopping function. Accordingly, the pipe type friction tension anchor rod has the advantages of great anchor pulling force, stable supporting resistance, and larger tension amount, and is particularly suitable for weak rock layers and underground chambers and tunnels with larger deformation.
Description
The utility model relates to a kind of tubular type friction that is used for underground rock engineering surrounding rock supporting anchor pole that can stretch, and belongs to " stratum control and supporting " technical field in the underground construction.
Since anchor pole came out, the bolt support mode was applied to production practices more and more widely, and for this reason, the anchor pole technology also grows up thereupon.At present the anchor pole kind of using is more, pipe-seam type anchor rod is simple with its processing faster, cost is low for development in recent years, in anchor hole full length fastening, have certain friction anchoring power, be applicable to expansive rock stratum and be subjected to extensive attention.This kind pipe-seam type anchor rod is the patented product of U.S. Ingersoll-rand company, and the United States Patent (USP) registration number is № 392286.Its weak point is: because the body of rod and anchor hole wall friction amount of movement can not be very big, otherwise reduce anchoring circle thickness, therefore, this kind pipe seam anchor bar can not be applied to the bigger underground engineering wall rock supporting of deflection.In addition, strict between anchor hole aperture and the pipe seam diameter, the aperture is big, and anchored force is low, and the aperture is little, and difficulty is installed.So in actual production work, especially anchored force is difficult to reach the expection requirement in the tunnel of weak stratum.
In view of the problem that exists in the above-mentioned technology, task of the present utility model is a kind of stable mechanical property of design, can be applicable to the bigger novel pipe friction of the rock deformation anchor pole that can stretch.
To Brief Description Of Drawings:
Fig. 1 is can the stretch assembling drawing of anchor pole of tubular type friction.
Fig. 2 is can the stretch structure chart of the body of rod (1) of anchor pole of tubular type friction.
Fig. 3 is can the stretch structure chart of second kind of form of the body of rod (1) of anchor pole of tubular type friction.
Fig. 4 is can the stretch structure chart of the third form of the body of rod (1) of anchor pole of tubular type friction.
Task of the present utility model realizes by following proposal: as shown in Figure 1, the body of rod (1) is pressed into friction sleeve pipe (2) by mechanical force, friction sleeve pipe (2) is anchored in the anchor hole (9) with Anchor Agent (6), make the supporting plate (7) that passes the body of rod (1) afterbody be close to anchor hole (9) by the hex nut (8) that screws the body of rod (1) afterbody, when country rock deforms, the suffered pulling force of the body of rod (1) increases, when pulling force surpasses the body of rod (1) with the stiction that rubs between the sleeve pipe (2), then make the body of rod (1) friction slip and outwards move, the block piece that body of rod head is installed (4) is also along with the body of rod (1) is pulled out certain distance to the outer end of anchor hole (9) simultaneously. Because being the tubing by two sections different-diameters, friction sleeve pipe (2) and stroke sleeve pipe (3) be formed by connecting, when the block piece (4) of rod member arrived the junction of friction sleeve pipe (2) and stroke sleeve pipe (3), friction sleeve pipe (2) namely stoped the body of rod (1) to pull out. The displacement of relative sliding is the amount of tension of anchor pole between the body of rod (1) and the friction sleeve pipe (2). Frictional resistance between the body of rod (1) and the friction sleeve pipe (2) is the anchor force that anchor pole provides. The materials such as the available expanding cement of Anchor Agent (6), resin are filled between anchor hole and the sleeve pipe (9), can determine anchorage length by designing requirement.
Above structure roughly says, is exactly that the body of rod just is drawn out under constant resistance when the suffered pulling force of the body of rod surpasses stiction between the body of rod and the sleeve pipe, and when reaching the elongation of design, block piece plays interception.It is big to adopt this structure then to make anchor pole have a first anchor-hold, but the stable bigger advantage of amount of tension of supporting resistance, and its superiority is conspicuous.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is can the stretch assembling drawing of anchor pole of tubular type friction.It is made of the body of rod (1), friction sleeve pipe (2), stroke sleeve pipe (3), block piece (4), stopper (5), anchoring agent (6), supporting plate (7), hex nut (8), and (9) are anchor hole.Stopper (5) stops that anchoring agent (6) enters in the sleeve pipe, and therefore, stopper (5) can adopt wooden unit or other obstruction to replace.
Fig. 2 is can the stretch structure chart of the body of rod (1) of anchor pole of tubular type friction, it is made by a reduced pipe that cracks, body of rod head has two pin-and-holes that are symmetrical in the center of circle, be used to install block piece (4) at this moment, block piece (4) adopts pin, afterbody is shaped on screw thread, is convenient to tighten supporting plate (7), to produce certain pretightning force.
Fig. 3 is can stretch second kind of form of the body of rod (1) of anchor pole of tubular type friction, and it is made by the common welded pipe or the seamless steel pipe that do not crack, can be pressed in the sleeve pipe by hot-press method.The body of rod (1) head has the pin-and-hole of two symmetries, is convenient to install block piece (4), and at this moment, block piece (4) is a pin, and afterbody tightens up supporting plate (7) with hex nut (8), to produce certain pretightning force.
Fig. 4 is can stretch the third form of the body of rod (1) of anchor pole of tubular type friction, and it is made by round steel, is pressed in the sleeve pipe by hot-press method.Two ends are shaped on screw thread, and an end is installed block piece (4), and block piece this moment (4) also is a round nut, and the other end tightens up supporting plate (7) with hex nut (8).
Fig. 5 is can the stretch assembling drawing of anchor pole sleeve pipe of tubular type friction.It is made up of the pipe of two sections different-diameters, can adopt to be threaded, and also can be threaded, and adopt socket.Stroke sleeve pipe (3) is not because of bearing the pulling force of the body of rod (1), so stroke sleeve pipe (3) can be made by plastics with low cost or other material.
Claims (9)
1, a kind of tubular type friction that is applicable to underground engineering wall rock supporting anchor pole that can stretch mainly is made up of the body of rod and sleeve pipe two parts.The head that it is characterized in that the body of rod (1) is installed on block piece (4); Sleeve pipe is formed by connecting with friction sleeve pipe (2) by the stroke sleeve pipe (3) of two sections calibers that vary in size respectively, and promptly the stroke sleeve pipe (3) of big caliber is socketed on the friction sleeve pipe (2) of little caliber; The body of rod (1) is installed in friction sleeve pipe (2) and the stroke sleeve pipe (3); And stopper (5) is housed at the head of stroke sleeve pipe (3).
2, the tubular type friction according to claim 1 anchor pole that can stretch is characterized in that the body of rod (1) made by split reducing steel pipe, and has two pin-and-holes that are symmetrical in the center of circle at its head that block piece (4) is installed in the pin-and-hole, and block piece (4) is a pin.
3,, it is characterized in that the body of rod (1) made by the split steel pipe of reducing not according to claim 1, the 2 described tubular type frictions anchor pole that can stretch.
4,, it is characterized in that the body of rod (1) made by seamless steel pipe according to claim 1, the 2 described tubular type frictions anchor pole that can stretch.
5,, it is characterized in that the body of rod (1) made by round steel according to claim 1, the 2 described tubular type frictions anchor pole that can stretch.
6, the tubular type friction according to claim 1 anchor pole that can stretch is characterized in that the head of the body of rod (1) is shaped on screw thread, and is screwed with block piece (4) that block piece (4) is a round nut.
7, the tubular type friction according to claim 1 anchor pole that can stretch, a termination of the sleeve pipe (2) that it is characterized in that rubbing is shaped on external screw thread.
8, the tubular type friction according to claim 1 anchor pole that can stretch is characterized in that stroke sleeve pipe (3) is made of plastics, and is shaped on internal thread in one end head.
9, according to claim 1,7, the 8 described tubular type frictions anchor pole that can stretch, the sleeve pipe (2) that it is characterized in that rubbing adopts with stroke sleeve pipe (3) and is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207128 CN87207128U (en) | 1987-05-29 | 1987-05-29 | Tubular friction tension anchoring-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207128 CN87207128U (en) | 1987-05-29 | 1987-05-29 | Tubular friction tension anchoring-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87207128U true CN87207128U (en) | 1988-03-09 |
Family
ID=4822604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87207128 Withdrawn CN87207128U (en) | 1987-05-29 | 1987-05-29 | Tubular friction tension anchoring-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87207128U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758550A (en) * | 2014-01-06 | 2014-04-30 | 成都理工大学 | Liquid-expansion type yielding anti-seismic high-ground-temperature-resistant anchor bolt |
| CN103967509A (en) * | 2014-05-15 | 2014-08-06 | 中国矿业大学(北京) | Anchor pipe cable supporting structure capable of bearing lateral shear force |
| CN112922652A (en) * | 2021-03-01 | 2021-06-08 | 华能煤炭技术研究有限公司 | Hierarchical tensile anchor rod and supporting system |
-
1987
- 1987-05-29 CN CN 87207128 patent/CN87207128U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758550A (en) * | 2014-01-06 | 2014-04-30 | 成都理工大学 | Liquid-expansion type yielding anti-seismic high-ground-temperature-resistant anchor bolt |
| CN103967509A (en) * | 2014-05-15 | 2014-08-06 | 中国矿业大学(北京) | Anchor pipe cable supporting structure capable of bearing lateral shear force |
| CN103967509B (en) * | 2014-05-15 | 2016-03-02 | 中国矿业大学(北京) | The anchor tube rope supporting and protection structure of cross shear can be born |
| CN112922652A (en) * | 2021-03-01 | 2021-06-08 | 华能煤炭技术研究有限公司 | Hierarchical tensile anchor rod and supporting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |