CN105649664A - Connectable ultralong anchor rod - Google Patents
Connectable ultralong anchor rod Download PDFInfo
- Publication number
- CN105649664A CN105649664A CN201610131472.XA CN201610131472A CN105649664A CN 105649664 A CN105649664 A CN 105649664A CN 201610131472 A CN201610131472 A CN 201610131472A CN 105649664 A CN105649664 A CN 105649664A
- Authority
- CN
- China
- Prior art keywords
- pole body
- steel pole
- union joint
- connecting device
- steel
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
Abstract
The invention discloses a connectable ultralong anchor rod. The anchor rod is characterized by consisting of a steel rod body I (1), a steel rod body II (2), a connecting device (3) and an anchor (4), wherein the connecting device (3) is arranged between the steel rod body I (1) and the steel rod body II (2); and the steel rod body I (1) and the steel rod body II (2) can be connected through the connecting device (3). The connecting device (3) can be connected and dismounted; and the length of the anchor rod can be increased by increasing the number of steel rod bodies I (1) at will and is not limited by a roadway space, so that the problem that a long anchor rod cannot be used due to insufficient roadway space can be effectively solved.
Description
Technical field
The present invention relates to one and can connect extra long anchor bar, particularly to a kind of connected extra long anchor bar being applied to coal and rock roadway support.
Background technology
Anchor pole is extensive use in colliery tunnel support, and current China rock-bolt length is usually no more than 3.0m. When back broken thickness is bigger, Short bolt originally can not meet supporting requirement, it is easy to roof fall accident occurs. The height of underworkings is typically in 2��3m, and the anchor pole of 4��5m cannot be constructed due to the restriction of lane space, can only adopt anchor cable that top board is controlled. But, the elongation percentage of anchor cable is low, is easy to lose efficacy when roadway deformation is bigger. And the elongation percentage of long anchor pole is bigger than anchor cable, the advantage that the existing anchorage degree of depth is big, bearing capacity is high, part country rock load can be discharged by constantly extending the body of rod again, can effectively safeguard stability of the roadway.
Summary of the invention
It is an object of the invention to provide and a kind of easy-to-install connect extra long anchor bar, solve the problem that current coal mine roadway can not use long anchor pole due to insufficient space.
Disclosed by the invention connect extra long anchor bar, it is made up of steel pole body I, steel pole body II, connecting device and ground tackle, one connecting device is set between steel pole body I and steel pole body II, steel pole body I and steel pole body II can be coupled together by connecting device, owing to steel pole body can connect and dismantle, so rock-bolt length is not limited by roadway space.
Preferably, steel pole body I includes the first union joint and the second union joint, has external screw thread outside the first union joint, has female thread inside the second union joint;
Preferably, steel pole body II includes the first union joint and the second union joint, has external screw thread outside the first union joint, and the second union joint is connected with ground tackle;
Preferably, connecting device is made up of the second union joint of steel pole body I and the first union joint of steel pole body II;
Preferably, connecting device is made up of the second union joint of steel pole body I and the first union joint of steel pole body I;
Preferably, steel shank diameter is 22��25mm, external screw thread segment length 30��50mm, and mates with screw thread specification in steel pole body, it is ensured that connect reliable between the body of rod.
The present invention compared with prior art has obvious advantage: this anchor pole had both had the advantage that anchorage depth is big, bearing capacity is high, had again the feature that elongation percentage is high. Anchor pole can carry out increasing and reduce anchor pole size according to tunnel practical situation, reaches the effect of stable supporting. Compared with common bolt, its length is big, is not limited by roadway space; Compared with anchor cable, elongation percentage is high, can effectively safeguard have wide applicability by stability of the roadway.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the structural representation connecting extra long anchor bar disclosed by the invention.
Fig. 2 is steel pole body I structural representation.
Fig. 3 is steel pole body II structural representation
In figure: 1-steel pole body I; 2-steel pole body II; 3-connecting device; 4-ground tackle; 5-steel pole body I first union joint external screw thread; 6-steel pole body I second union joint female thread; 7-steel pole body II first union joint external screw thread.
Detailed description of the invention
A kind of extra long anchor bar disclosed by the invention, is made up of steel pole body I, steel pole body II, connecting device and ground tackle, arranges a connecting device between steel pole body I and steel pole body II, can steel pole body I and steel pole body II be coupled together by connecting device.
Fig. 1 is the structural representation connecting extra long anchor bar disclosed by the invention, it is made up of steel pole body I (1), steel pole body II (2), connecting device (3) and ground tackle (4), one connecting device (3) is set between steel pole body I (1) and steel pole body II (2), steel pole body I (1) and steel pole body II (2) can be coupled together by connecting device (3). Steel pole body I (1) includes the first union joint and the second union joint, has external screw thread outside the first union joint, has female thread inside the second union joint. Steel pole body II (2) includes the first union joint and the second union joint, has external screw thread outside the first union joint, and the second union joint is connected with ground tackle (4). Steel shank diameter is 22��25mm, external screw thread segment length 30��50mm, and mates with screw thread specification in steel pole body, it is ensured that connect reliable between the body of rod.
At underground coal mine when back broken thickness is bigger, for preventing roof fall accident, it is necessary to adopt extra long anchor bar to carry out supporting. First accomplish fluently boring with jumbolter during construction at the scene, utilize on-the-spot installation facility to fill in anchor rod body I in boring, then reconnect anchor rod body II, then in boring, inject Anchor Agent again, finally lock ground tackle. The quantity of anchor rod body I can be increased according to actual roadway damage situation, to reach the effect of overlength anchoring simultaneously. This anchor pole site operation is convenient, and anchorage depth is big, bearing capacity is high, and has certain elongation percentage, is truly realized the purpose effectively controlling roadway deformation.
Claims (6)
1. one kind can connect extra long anchor bar, it is made up of steel pole body I (1), steel pole body II (2), connecting device (3) and ground tackle (4), it is characterized in that, one connecting device (3) is set between steel pole body I (1) and steel pole body II (2), steel pole body I (1) and steel pole body II (2) can be coupled together by connecting device (3).
2. according to claim 1 connect extra long anchor bar, it is characterised in that described steel pole body I (1) includes the first union joint and the second union joint, has external screw thread, have female thread inside the second union joint outside the first union joint.
3. according to claim 1 connect extra long anchor bar, it is characterised in that described steel pole body II (2) includes the first union joint and the second union joint, has external screw thread outside the first union joint, and the second union joint is connected with ground tackle (4).
4. according to claim 1 connect extra long anchor bar, it is characterised in that described connecting device (3) is made up of the second union joint of steel pole body I (1) and the first union joint of steel pole body II (2).
5. according to claim 1 connect extra long anchor bar, it is characterised in that described connecting device (3) is made up of the second union joint of steel pole body I (1) and the first union joint of steel pole body I (1).
6. the extra long anchor bar according to claim 2 and 3, it is characterised in that described steel shank diameter is 22��25mm, external screw thread segment length 30��50mm, and mates with screw thread specification in steel pole body, it is ensured that connect reliable between the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131472.XA CN105649664A (en) | 2016-03-08 | 2016-03-08 | Connectable ultralong anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131472.XA CN105649664A (en) | 2016-03-08 | 2016-03-08 | Connectable ultralong anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105649664A true CN105649664A (en) | 2016-06-08 |
Family
ID=56492344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610131472.XA Pending CN105649664A (en) | 2016-03-08 | 2016-03-08 | Connectable ultralong anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105649664A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488354A (en) * | 2018-12-24 | 2019-03-19 | 聊城大学 | One kind can connect extra long anchor bar |
| CN111255493A (en) * | 2020-02-18 | 2020-06-09 | 太原理工大学 | Connectable extension anchor rod capable of achieving segmented anchoring and mounting device thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201835847U (en) * | 2010-10-25 | 2011-05-18 | 中国矿业大学(北京) | Ultralong anchor rod |
| CN103541750A (en) * | 2013-10-21 | 2014-01-29 | 辽宁工程技术大学 | Alternately-distributed energy-absorbing overlength combined anchor rod for mining and application method |
| CN103643978A (en) * | 2013-12-27 | 2014-03-19 | 中国矿业大学(北京) | Super-long anchor rod |
| CN105089686A (en) * | 2015-07-23 | 2015-11-25 | 合肥吉源电子有限公司 | Anti-impact ground-pressure lengthening anchor rod |
| CN105298525A (en) * | 2015-11-19 | 2016-02-03 | 辽宁工程技术大学 | Anti-shock ground pressure lengthening anchor rod |
-
2016
- 2016-03-08 CN CN201610131472.XA patent/CN105649664A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201835847U (en) * | 2010-10-25 | 2011-05-18 | 中国矿业大学(北京) | Ultralong anchor rod |
| CN103541750A (en) * | 2013-10-21 | 2014-01-29 | 辽宁工程技术大学 | Alternately-distributed energy-absorbing overlength combined anchor rod for mining and application method |
| CN103643978A (en) * | 2013-12-27 | 2014-03-19 | 中国矿业大学(北京) | Super-long anchor rod |
| CN105089686A (en) * | 2015-07-23 | 2015-11-25 | 合肥吉源电子有限公司 | Anti-impact ground-pressure lengthening anchor rod |
| CN105298525A (en) * | 2015-11-19 | 2016-02-03 | 辽宁工程技术大学 | Anti-shock ground pressure lengthening anchor rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488354A (en) * | 2018-12-24 | 2019-03-19 | 聊城大学 | One kind can connect extra long anchor bar |
| CN111255493A (en) * | 2020-02-18 | 2020-06-09 | 太原理工大学 | Connectable extension anchor rod capable of achieving segmented anchoring and mounting device thereof |
| CN111255493B (en) * | 2020-02-18 | 2021-11-02 | 太原理工大学 | Connectable extension anchor rod capable of achieving segmented anchoring and mounting device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |