CN103244162A - Compressible base plate device and anchor cable anchorage method by device - Google Patents
Compressible base plate device and anchor cable anchorage method by device Download PDFInfo
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- CN103244162A CN103244162A CN2013101985862A CN201310198586A CN103244162A CN 103244162 A CN103244162 A CN 103244162A CN 2013101985862 A CN2013101985862 A CN 2013101985862A CN 201310198586 A CN201310198586 A CN 201310198586A CN 103244162 A CN103244162 A CN 103244162A
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- shaped steel
- base plate
- anchor cable
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Abstract
The invention discloses a compressible base plate device and an anchor cable anchorage method by the device. The compressible base plate device comprises an inner base plate (1), an outer base plate (2) and U-shaped steel (3), the centers of the inner base plate, the outer base plate and the U-shaped steel are provided with through holes, a convex surface of the U-shaped steel (3) corresponds to the outer base plate (2), the bottom of the U-shaped steel corresponds to the inner base plate (1), and the U-shaped steel (3) can generate plastic deformation. The anchor cable anchorage method by the device includes the steps: drilling a hole inside surrounding rock; placing an anchoring agent cartridge at the bottom end of the drilled hole and placing an anchor cable (4) into the drilled hole; and mounting the compressible base plate device at a projecting end of the anchor cable (4), locking a lock (5) by the aid of an anchoring pre-tightening jack and applying a certain pre-stress. The compressible base plate device is simple in structure, mounting and matching of other devices are omitted when the device is used, the supported surrounding rock can generate a certain deformation when the device is used, and the device overcomes the shortcoming that a surrounding rock supported by a traditional anchorage method cannot generate controllable deformation to release a certain stress.
Description
Technical field
The present invention relates to mine working engineering apparatus field, particularly realize allowing plasticity pallet device and a kind of method with anchorage cable anchoring of compressive strain in a kind of anchoring support of heavily stressed roadway with large deformation.
Background technology
Anchor cable is to be fixed in the surface, tunnel by the outer end, and the other end is fixed on the prestress wire that passes slide surface in the deep layer rock mass of roadway surrounding rock.Backing plate is a metal sheet of being close to the surface, tunnel, has circular hole to pass through for anchor cable above.
At present, in the prestress anchorage cable supporting construction, be after anchor cable is put into boring, overlap anchor cable convex exposure end head with backing plate and be close to the surface, tunnel, apply certain prestressing force locking anchor cable with lockset then, this method compliance in the superficial part mine is stronger.But along with the continuous increase in coal mining deep, the geostatic stress that country rock and supporting and protection structure are subjected to is increasing, and its distortion is bigger.Therefore, carry out cable bolting if only simply apply prestressing force, the prestressing force that applies on anchor cable hour will cause deformation of the surrounding rock in tunnel excessive and anchor cable is broken or phenomenon such as dial-out, finally makes anchor cable lose support action.
Summary of the invention
Be to solve the above-mentioned technical problem that prior art exists, the invention provides a kind of anchorage cable anchoring method that can successfully manage the compressibility pallet device of the large deformation that Deep Mine roadway support faces, heavily stressed problem and utilize this device.
The technical scheme that the present invention solves the problems of the technologies described above is: a kind of compressibility pallet device includes interior backing plate, outer backing plate and U-shaped steel; The outer backing plate of the convex surface correspondence of U-shaped steel, backing plate in the footing correspondence; The center of interior backing plate, outer backing plate and U-shaped steel all has manhole; Described U-shaped steel can produce plastically deformable.
Further, the interior backing plate in the compressibility pallet device and outer backing plate are high-intensity steel metal caul.
A kind of anchorage cable anchoring method of utilizing the compressibility pallet device the steps include:
1) adopts the boring of spudding in country rock inside of the hammer drill, drilling rod and the drill bit that are equipped with mutually with anchor cable;
2) clean boring, anchoring agent powder stick is put into the boring bottom, again anchor cable is put into boring;
3) utilize pneumatic stirrer that powder stick is smashed;
4) load onto interior backing plate, U-shaped steel, outer backing plate successively at the anchor cable convex exposure end, the outer backing plate of the convex surface correspondence of described U-shaped steel, backing plate in the footing correspondence; After installing, with anchoring pretension jack prestressing force is locked and applied to lockset.
The invention has the beneficial effects as follows: the inside and outside backing plate of the compressibility pallet device high-intensity steel metal that has drawn from, safe and reliable; And the U-shaped steel with good contractibility and higher-strength provides crucial support action for the contractibility deformation space of whole device, is convenient to draw materials; Whole device has been realized passively combining with active support, has overcome that country rock can not produce the defective that controllable deforming discharges certain stress in the supporting of traditional anchoring method, and the intensity height, is not easy to crush.
Description of drawings
Fig. 1 is structure chart of the present invention.
Fig. 2 is the schematic diagram of the present invention in work progress.
Among the figure, 1. in backing plate, 2. outer backing plate, 3.U shaped steel, 4. anchor cable, 5. lockset, 6. through hole, 7. through hole, 8. through hole.
The specific embodiment
The present invention will be described in detail below in conjunction with attached Fig. 1 and 2 and specific embodiment.
Fig. 1 is the structure chart of compressibility pallet device.As shown in the figure: a kind of compressibility pallet device includes interior backing plate 1, outer backing plate 2 and U-shaped steel 3; The outer backing plate 2 of the convex surface correspondence of U-shaped steel 3, backing plate 1 in the footing correspondence; The center of backing plate 1 has manhole 6 in described, and the center of outer backing plate 2 has manhole 7, and the center of U-shaped steel 3 has manhole 8; U-shaped steel 3 can produce plastically deformable.Its China and foreign countries' backing plate 2 adopts the steel plate of size 150mm * 150mm * 10mm to make, and interior backing plate 1 adopts the steel plate of size 350mm * 350mm * 10mm to make.
Fig. 2 is the schematic diagram of compressibility pallet device in work progress.In work progress, utilize the anchorage cable anchoring method step of compressibility pallet device to be:
The first step: adopting the hammer drill, drilling rod and the drill bit that are equipped with mutually with the anchor cable diameter that spuds in country rock inside is the boring of 32mm or 28mm;
Second step: after treating that boring cleans up, anchoring agent powder stick is put into, anchor cable 4 is immediately following slowly putting into boring thereafter, until guaranteeing that powder stick arrives at the boring bottom;
The 3rd step: utilize pneumatic stirrer powder stick to be smashed so that the anchored end anchoring is firm;
The 4th step: backing plate 1, U-shaped steel 3, outer backing plate 2 in anchor cable 4 convex exposure ends are loaded onto successively, the outer backing plate 2 of the convex surface correspondence of described U-shaped steel 3, backing plate 1 in the footing correspondence; With anchoring pretension jack certain prestressing force is locked and applied to lockset 5 at last.
So just finished the anchorage cable anchoring method of utilizing the compressibility pallet device.
Claims (5)
1. a compressibility pallet device is characterized in that: comprise interior backing plate, outer backing plate and U-shaped steel; Described U-shaped steel places between interior backing plate, the outer backing plate, and the convex surface of U-shaped steel joins with outer backing plate, and the footing of U-shaped steel and interior backing plate join; The center of backing plate, outer backing plate and U-shaped steel has through hole in described.
2. compressibility pallet device as claimed in claim 1, it is characterized in that: described through hole is manhole.
3. compressibility pallet device as claimed in claim 1 is characterized in that: backing plate and outer backing plate are the steel metal caul in described.
4. an anchorage cable anchoring method of utilizing the compressibility pallet device the steps include:
1) adopts hammer drill, drilling rod and the drill bit that is equipped with mutually with anchor cable, the boring of spudding in country rock inside;
2) clean boring, anchoring agent powder stick is put into the boring bottom, again anchor cable is put into boring;
3) load onto interior backing plate, U-shaped steel, outer backing plate successively at the anchor cable convex exposure end, the outer backing plate of the convex surface correspondence of described U-shaped steel, backing plate in the footing correspondence; After installing, with anchoring pretension jack prestressing force is locked and applied to lockset.
5. a kind of anchorage cable anchoring method of utilizing the compressibility pallet device as claimed in claim 4 is characterized in that: utilize pneumatic stirrer with step 2) described anchoring agent powder stick smashes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101985862A CN103244162A (en) | 2013-05-27 | 2013-05-27 | Compressible base plate device and anchor cable anchorage method by device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101985862A CN103244162A (en) | 2013-05-27 | 2013-05-27 | Compressible base plate device and anchor cable anchorage method by device |
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| CN103244162A true CN103244162A (en) | 2013-08-14 |
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| CN2013101985862A Pending CN103244162A (en) | 2013-05-27 | 2013-05-27 | Compressible base plate device and anchor cable anchorage method by device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470270A (en) * | 2013-09-10 | 2013-12-25 | 安徽理工大学 | Deep well ingate supporting structure and construction method thereof |
| CN103485794A (en) * | 2013-09-10 | 2014-01-01 | 安徽理工大学 | Composite ingate supporting structure and construction method thereof |
| CN103953360A (en) * | 2014-04-18 | 2014-07-30 | 湖南科技大学 | U-shaped steel and anchor cable collaborated support structure for laneway with large-deformation deep part |
| CN113202530A (en) * | 2021-06-07 | 2021-08-03 | 河南理工大学 | Shear-resistant anchor cable supporting structure and method adopted by large-deformation roadway |
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| AU2008202980A1 (en) * | 2007-07-04 | 2009-01-22 | Fero Group Pty Ltd | Yielding rock bolt |
| CN201206470Y (en) * | 2008-05-29 | 2009-03-11 | 中国矿业大学 | Yield press anchor cable |
| CN202007405U (en) * | 2010-12-20 | 2011-10-12 | 中铁隧道集团有限公司 | Vibration balancing anchoring device |
| CN202325581U (en) * | 2011-11-17 | 2012-07-11 | 湖南科技大学 | Prestress anchor bolt support system suitable for dynamic loads |
| CN202325584U (en) * | 2011-11-29 | 2012-07-11 | 中国科学院武汉岩土力学研究所 | Buffering energy-consumption anchor rod tray |
| CN202348300U (en) * | 2011-11-28 | 2012-07-25 | 勾攀峰 | Mine anchor cable |
| CN203257444U (en) * | 2013-05-27 | 2013-10-30 | 湖南科技大学 | Compressible base plate device |
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2013
- 2013-05-27 CN CN2013101985862A patent/CN103244162A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2008202980A1 (en) * | 2007-07-04 | 2009-01-22 | Fero Group Pty Ltd | Yielding rock bolt |
| CN201206470Y (en) * | 2008-05-29 | 2009-03-11 | 中国矿业大学 | Yield press anchor cable |
| CN202007405U (en) * | 2010-12-20 | 2011-10-12 | 中铁隧道集团有限公司 | Vibration balancing anchoring device |
| CN202325581U (en) * | 2011-11-17 | 2012-07-11 | 湖南科技大学 | Prestress anchor bolt support system suitable for dynamic loads |
| CN202348300U (en) * | 2011-11-28 | 2012-07-25 | 勾攀峰 | Mine anchor cable |
| CN202325584U (en) * | 2011-11-29 | 2012-07-11 | 中国科学院武汉岩土力学研究所 | Buffering energy-consumption anchor rod tray |
| CN203257444U (en) * | 2013-05-27 | 2013-10-30 | 湖南科技大学 | Compressible base plate device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470270A (en) * | 2013-09-10 | 2013-12-25 | 安徽理工大学 | Deep well ingate supporting structure and construction method thereof |
| CN103485794A (en) * | 2013-09-10 | 2014-01-01 | 安徽理工大学 | Composite ingate supporting structure and construction method thereof |
| CN103470270B (en) * | 2013-09-10 | 2015-04-08 | 安徽理工大学 | Deep well ingate supporting structure and construction method thereof |
| CN103485794B (en) * | 2013-09-10 | 2015-06-03 | 安徽理工大学 | Composite ingate supporting structure and construction method thereof |
| CN103953360A (en) * | 2014-04-18 | 2014-07-30 | 湖南科技大学 | U-shaped steel and anchor cable collaborated support structure for laneway with large-deformation deep part |
| CN103953360B (en) * | 2014-04-18 | 2016-06-29 | 湖南科技大学 | A kind of U-shaped steel for deep roadway with large deformation and the collaborative supporting construction of anchor cable |
| CN113202530A (en) * | 2021-06-07 | 2021-08-03 | 河南理工大学 | Shear-resistant anchor cable supporting structure and method adopted by large-deformation roadway |
| CN113202530B (en) * | 2021-06-07 | 2023-02-17 | 河南理工大学 | Shear-resistant anchor cable supporting structure and method adopted by large-deformation roadway |
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Application publication date: 20130814 |