CN2591229Y - Retractable whole-anchoring-bolt - Google Patents
Retractable whole-anchoring-bolt Download PDFInfo
- Publication number
- CN2591229Y CN2591229Y CN 02290317 CN02290317U CN2591229Y CN 2591229 Y CN2591229 Y CN 2591229Y CN 02290317 CN02290317 CN 02290317 CN 02290317 U CN02290317 U CN 02290317U CN 2591229 Y CN2591229 Y CN 2591229Y
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- Prior art keywords
- slice
- bearing slice
- utility
- model
- supporting
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- Expired - Fee Related
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a whole anchoring bolt capable of expanding and retracting, which is suitable for supporting a tunnel in a mine for supporting a foundation pit in geotechnical engineering. The utility model is characterized in that the whole anchoring bolt is provided with a bolt body and a pallet, wherein the bolt body is composed of a pull bearing slice and a pressure bearing slice which have the same specification; the width of the bolt body is smaller than the diameter of a drilled hole by 5 to 8mm; the length of the bolt body is smaller than the length of the drilled hole by 80 to 100mm; the pull bearing slice and the pressure bearing slice are formed by pressing steel sheets; the side surfaces of the pull bearing slice and the pressure bearing slice are in a sawtoothed shape, and pull bearing slice and the pressure bearing slice are arranged in parallel; the back end of the pull bearing slice is provided with a round rod, and rolled threads are arranged on the round rod; the pallet forms a square, and a hole is arranged in the center of the pallet; the pallet is installed on the round rod at the back end of the pull bearing slice by the central hole and is fastened by a nut. The utility model has the advantages of simple structure, convenient installation, large anchoring force and strong strain force, and can expand along the change of surrounding rock. Thereby, the utility model is especially suitable for the temporary support of soft rock and a coal tunnel with large deformation.
Description
(1) technical field: the utility model relates to a kind of extending recyclable full anchoring rod, belong to stratum control and supporting field in the underground construction, be applicable to pattern foundation pit supporting structure in mine laneway supporting, the geotechnical engineering, be specially adapted to soft rock supporting, large deformation coal road temporary lining etc.
(2) background technology: in mine laneway, the surrounding rock supporting mode can be divided into two classes usually, and a class is traditional support pattern, comprises country rock block arch, metallic support, timbering, though this support pattern supporting capacity is big, but supporting expense height.Another kind of is bolt-spary supports, comprises end anchorage supporting and full length fastening supporting, the former as slot-and-wedge type, fall wedge-type, resin formula and cement formula etc., these several structures are more complicated all, difficulty is installed, and the release immediately in case termination or tray portion are damaged loses support capacity.The latter such as cement mortar anchor pole, though be full length fastening, the cement shear resistance is poor, the mounting process complexity, quality can not guarantee, influence supporting effect.But the resin anchor full length fastening is exactly that cost is higher.Also have pipe-seam type anchor rod, cost is also higher, and its anchored force relies on expansion of metal and hole wall to produce mutual friction mutually and realizes that it requires lithology to get well.In a word, above-mentioned these anchor poles in use majority all will be used the anchoring agent, and therefore, anchor pole can not recycling, moreover these anchor poles can not extend with surrouding rock deformation, and influence is to the supporting effect of soft rock and large deformation coal road.
(3) summary of the invention: the purpose of this utility model, a kind of extending recyclable full anchoring rod of developing at above deficiency exactly, it comprises the body of rod and supporting plate, supporting plate is square, the supporting plate center is porose, its design feature is: the body of rod is by bearing sheet and pressure-bearing plate is formed, both specifications are identical, its width is than the little 5-8mm of bore diameter, and length is than the little 80-100mm of boring length, pressure-bearing plate and bear sheet and all suppress with steel plate, the side indentation, both be arranged in parallel, and bearing the sheet rear end has a round bar, and rolled thread is arranged on the round bar; Supporting plate is contained on the round bar that bears the sheet rear end by centre bore, and fastening with nut.
The beneficial effects of the utility model are:
1, this anchor structure is simple, and is easy for installation, guarantees construction safety.
2, this anchor pole can be made full length fastening, and anchored force is big and stable, and anchor pole can carry after squeezing into boring immediately, and the supporting strong adaptability.
3, this anchor pole can extend with surrouding rock deformation, during elongation pressure from surrounding rock is increased, and helps the control to surrouding rock deformation, as soft rock and large deformation coal roadway support better effects if.
4, this anchor pole is without the anchoring agent, and anchor pole is recyclable, significantly reduces material consumption.
5, this anchor pole applied range is specially adapted to soft rock supporting, the temporary lining of large deformation coal road and deep foundation ditch temporary lining etc.
(4) description of drawings:
Fig. 1 is a general structure sectional view of the present utility model
Fig. 2 is the vertical view that bears sheet of the present utility model
Fig. 3 is the vertical view of pressure-bearing plate of the present utility model
Fig. 4 is a supporting plate schematic diagram of the present utility model
In the accompanying drawing: 1 boring, 2 anchor poles bear sheet 3 anchor pole pressure-bearing plates 4 round bars 5 supporting plates 6 nuts
(5) specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing
Shown in Fig. 1,2,3,4, this anchor pole comprises the body of rod and supporting plate, the body of rod is by bearing sheet 2 and pressure-bearing plate 3 is formed, and both specifications are identical, and its width is than the little 5-8mm of bore diameter, length is than the little 80-100mm of boring length, pressure-bearing plate and bear sheet and all suppress and form with the rectangle steel plate, the side indentation, both be arranged in parallel, bearing sheet 2 rear ends has a round bar 4, and rolled thread is arranged on the round bar; Supporting plate 5 is square, and also can be circle, and the plate center is porose; Supporting plate is contained on the round bar 4 that bears sheet 2 rear ends by centre bore, uses nut 6 fastening again.
During use, in country rock, drill earlier, 1 diameter of holing is 35-42mm, the rock mass of boring length anchoring according to actual needs and deciding, be generally 1.8-2.4m, put into the body of rod then, bearing sheet 2 puts into simultaneously with pressure-bearing plate 3, then supporting plate 5 is contained on the round bar 4 that bears the sheet rear end, uses nut 6 fastening again, this moment, supporting plate was tightly pushed down pressure-bearing plate, make and bear sheet and pressure-bearing plate interaction generation displacement, boring is exerted pressure, add the supporting force of anchor pole lower end supporting plate again, make country rock be in full anchoring impaction state.During as soft rock or coal road deformation displacement, because bore diameter diminishes gradually, make and bear sheet and pressure-bearing plate generation sliding friction, the bolt deformation elongation, supporting plate increases the thrust of country rock, and this still can realize full length fastening to soft rock or distortion coal road, thereby has reached the reinforcing country rock, prevent that it from moving, make it stable purpose.
Claims (1)
1, a kind of extending recyclable full anchoring rod comprises the body of rod and supporting plate, and supporting plate (5) is square, the supporting plate center is porose, it is characterized in that: the body of rod is by bearing sheet (2) and pressure-bearing plate (3) is formed, and net person specification is identical, and its width is than the little 5-8mm of bore diameter, length is than the little 80-100mm of boring length, pressure-bearing plate and bear sheet all with steel plate compacting, the side indentation, both be arranged in parallel, bearing sheet (2) rear end has a round bar (4), and rolled thread is arranged on the round bar; Supporting plate (5) is contained on the round bar (4) that bears sheet (2) rear end by centre bore, and fastening with nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290317 CN2591229Y (en) | 2002-12-06 | 2002-12-06 | Retractable whole-anchoring-bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290317 CN2591229Y (en) | 2002-12-06 | 2002-12-06 | Retractable whole-anchoring-bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591229Y true CN2591229Y (en) | 2003-12-10 |
Family
ID=33749582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02290317 Expired - Fee Related CN2591229Y (en) | 2002-12-06 | 2002-12-06 | Retractable whole-anchoring-bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591229Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402793C (en) * | 2006-10-11 | 2008-07-16 | 北京交通大学 | Low tunnel rockbolt anchorage cable pneumatic drilling machine |
| CN101225735B (en) * | 2008-01-31 | 2011-05-11 | 山东交院机械厂 | Trestle supporting pneumatic drilling machine |
| CN101720379B (en) * | 2006-12-22 | 2012-07-18 | 动力岩石支护公司 | A deformable rock bolt |
| CN114263157A (en) * | 2022-01-24 | 2022-04-01 | 中国一冶集团有限公司 | Prevention device for uneven settlement disaster among underground pipe groups |
-
2002
- 2002-12-06 CN CN 02290317 patent/CN2591229Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402793C (en) * | 2006-10-11 | 2008-07-16 | 北京交通大学 | Low tunnel rockbolt anchorage cable pneumatic drilling machine |
| CN101720379B (en) * | 2006-12-22 | 2012-07-18 | 动力岩石支护公司 | A deformable rock bolt |
| CN101225735B (en) * | 2008-01-31 | 2011-05-11 | 山东交院机械厂 | Trestle supporting pneumatic drilling machine |
| CN114263157A (en) * | 2022-01-24 | 2022-04-01 | 中国一冶集团有限公司 | Prevention device for uneven settlement disaster among underground pipe groups |
| CN114263157B (en) * | 2022-01-24 | 2023-10-27 | 中国一冶集团有限公司 | Uneven settlement disaster prevention device between underground pipe clusters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |