CN104329106B - A kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway - Google Patents
A kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway Download PDFInfo
- Publication number
- CN104329106B CN104329106B CN201410689357.5A CN201410689357A CN104329106B CN 104329106 B CN104329106 B CN 104329106B CN 201410689357 A CN201410689357 A CN 201410689357A CN 104329106 B CN104329106 B CN 104329106B
- Authority
- CN
- China
- Prior art keywords
- plate
- roadway
- backing plate
- bolthole
- nose
- 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
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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
- E21D21/0086—Bearing plates
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Abstract
The invention discloses a kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway, it includes rib backing plate, crag backing plate, described rib backing plate one end is nose entity, nose front part sides contains two and rotates noses, and other end entity is for having around bolthole and bolthole outwardly; Described crag backing plate one end is W shape steel plate, both sides, steel plate front end are provided with the plate washer vertical with plate body, plate washer vertically has groove, telescopic block it is provided with in groove, telescopic block lower end and groove constitute circular port and insert for rotating nose, and the other end is have around bolthole and bolthole entity outwardly. The present invention is not only simple in structure, easy to use, and adapted to the feature of half-coal rock roadway inhomogeneous deformation, it is not easy to produce entirety and damage, long service life.
Description
Technical field
The present invention relates to the roof bolt plate of a kind of uneven large deformation half-coal rock roadway country rock being specially adapted for underground coal exploitation.
Background technology
Each province and city, south coal resources lack, and including Jiangxi, Hunan, Yunnan, Guangxi and Sichuan etc., area girdle tax is deposited more, and due to Requirements of social economy and Cost Problems, these girdles become the object of southern each colliery main force exploitation at present. At present, Hunan Province thin seam mining technology promotion and application comprehensive mechanization, but it is as the increasing of complex geologic conditions degree and limit of mining, soft-rock tunnel large deformation annoyings each mining area all the time, and problem is more and more prominent, cause that the transport of large-scale winning apparatus and operating all deform very difficult. For girdle Deformation in Soft Rock Tunnel and control problem, it is concentrated mainly in the research of alternate heading. Alternate heading refers to that rock stratum accounts for a class tunnel of driving face area 1/5��4/5, such tunnel is mainly arranged near exploiting field or work surface, it is subject to exploitation disturbance bigger, low plus the mechanical strength of roadway surrounding rock own, its deflection is big, deformation time is long, cause that supporting construction lost efficacy and tunnel unstability, considerably increase maintenance and reprocess cost, directly affecting safety of coal mines and efficiently produce.
From the investigation of a large amount of tunnels and site observation result, it appeared that: the deformation for girdle alternate heading is uneven, has certain feature, for instance: roadway's sides middle and lower part bloats seriously, upper deformation is less, makes tunnel be become inverted trapezoidal by original rectangle; Or roadway's sides is " recessed " or " convex " shape, etc. Therefore, supporting for deep-well large deformation class alternate heading not only should be embodied in " three high " feature, but also to be embodied in " key position " and the coupling at " other position ", the deformation characteristics in coal seam should be considered, consider the deformation characteristics of rock stratum again. Current support technology major part does not account for the feature of the inhomogeneous deformation of deep alternate heading country rock, causes that supporting construction body does not mate mutually with surrouding rock stress, occurs that prop local or key position are easily destroyed, thus affecting whole supporting effect.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of simple in construction, a kind of roof bolt plate for uneven large deformation half-coal rock roadway country rock esy to use, safe and reliable.
This invention address that the technical scheme of the problems referred to above is: a kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway, it is characterized in that: include rib backing plate, crag backing plate, described rib backing plate one end is nose entity, nose front part sides contains two and rotates noses, and other end entity is for having around bolthole and bolthole outwardly; Described crag backing plate one end is W shape steel plate, both sides, steel plate front end are provided with the plate washer vertical with plate body, plate washer vertically has groove, telescopic block it is provided with in groove, telescopic block lower end and groove constitute circular port and insert for rotating nose, and the other end is have around bolthole and bolthole entity outwardly.
In the above-mentioned roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway, described telescopic block is to be combined into entirety by spring and selenodont metal derby.
In the above-mentioned roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway, described rib backing plate nose is W shape steel plate.
In the above-mentioned roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway, between described rib backing plate and nut, it is provided with spring.
The beneficial effects of the present invention is:
One, rib backing plate nose entity is inserted crag backing plate groove ends entity composition entirety by the present invention, and ensures that rotating nose inserts in groove ends annulus hole, is then close to wall, anchor pole is squeezed into tunnel, fixed. The supporting construction formed has that simple in construction, cost be low, processing and the feature such as easy to use;
Two, the present invention is not only mutually combined the intensity that ensure that backing plate between backing plate, also with High strength bolt with the use of, strengthen to increase again while Zhi Qiangdu and protect surface area.
Three, the present invention is directed to alternate heading and deform uneven situation up and down, rib backing plate nose entity is inserted crag backing plate groove ends entity and constitutes entirety; Ensure that rib rotates axle and inserts looping pit and by telescopic block fixation. Deforming bigger coal seam part and necessarily backing plate is applied pressure, now the inevitable telescopic block of compressing in tunnel of the rotation nose of inside grooves misplaces, and enters misaligned state; Ensure suspension roof support reliability.
Accompanying drawing explanation
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the assembling schematic diagram of the present invention.
Fig. 3 is construction and the deformation state schematic diagram of the present invention.
In figure: rib backing plate 1, nose 2, plate washer 3, crag backing plate 4, anchor pole 5, nut 6, bolthole 7, spring 8, rotation nose 9, selenodont metal derby 10, spring 11,12 groove.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the present invention includes crag backing plate 4 and rib backing plate 1, including rib backing plate, crag backing plate, described rib backing plate 1 one end is nose entity, nose entity adopts W shape steel plate, nose front part sides is provided with two and rotates noses 9, and other end entity is for having around bolthole 7 and bolthole outwardly; Described crag backing plate 4 one end is W shape steel plate, both sides, steel plate front end are provided with the plate washer 3 vertical with plate body, plate washer perpendicular 3 is to having groove 12, it is provided with telescopic block in groove 12, telescopic block is combined into entirety by spring 11 and selenodont metal derby 10, telescopic block lower end and groove 12 constitute circular port, and circular port inserts for the rotation nose 9 of rib backing plate 1, and the other end of crag backing plate 4 is have around bolthole 7 and bolthole entity outwardly.During use, the rotation nose 9 of rib backing plate 1 is inserted in the circular port of crag backing plate 4 and constitute entirety, be then close to wall, anchor pole is squeezed into tunnel, fixed. It installs design sketch as shown in Figure 3.
Bolthole 7 matches with the anchor pole 5 when installing, and anchor pole 5 is fixed by nut 6; It addition, between rib backing plate 1 and nut 6, be additionally provided with high strong spring 8, thus it is suitable for rib large deformation.
The present invention is not only simple in structure, easy to use, and adapted to the feature of half-coal rock roadway inhomogeneous deformation, it is not easy to produce entirety and damage, long service life.
Claims (4)
1. the roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway, it is characterized in that: include rib backing plate, crag backing plate, described rib backing plate one end is nose entity, nose front part sides contains two and rotates noses, and other end entity is for having around bolthole and bolthole outwardly; Described crag backing plate one end is W shape steel plate, both sides, steel plate front end are provided with the plate washer vertical with plate body, plate washer vertically has groove, telescopic block it is provided with in groove, telescopic block lower end and groove constitute circular port and insert for rotating nose, and the other end is have around bolthole and bolthole entity outwardly.
2. the roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway as claimed in claim 1, it is characterised in that: described telescopic block is to be combined into entirety by spring and selenodont metal derby.
3. the roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway as claimed in claim 1, it is characterised in that: described rib backing plate nose is W shape steel plate.
4. the roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway as claimed in claim 1, it is characterised in that: it is provided with spring between described rib backing plate and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689357.5A CN104329106B (en) | 2014-11-26 | 2014-11-26 | A kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689357.5A CN104329106B (en) | 2014-11-26 | 2014-11-26 | A kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329106A CN104329106A (en) | 2015-02-04 |
| CN104329106B true CN104329106B (en) | 2016-06-08 |
Family
ID=52403898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410689357.5A Expired - Fee Related CN104329106B (en) | 2014-11-26 | 2014-11-26 | A kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329106B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU174997U1 (en) * | 2017-05-26 | 2017-11-15 | ООО "ОКС-Трейд" | WASHER SUPPORT ANCHOR WITH FIXTOR |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596496A (en) * | 1983-09-29 | 1986-06-24 | The Eastern Co. | Mine roof supporting truss system |
| CN202645599U (en) * | 2012-06-13 | 2013-01-02 | 山西潞安环保能源开发股份有限公司 | Adjustable combined member for surface protection |
| CN103075165A (en) * | 2013-01-10 | 2013-05-01 | 中国矿业大学(北京) | Composite supporting method of vertical beam of coal road |
| CN203022778U (en) * | 2012-12-20 | 2013-06-26 | 广西百色矿务局有限公司 | Left-hand thread pre-tightening device for side truss anchor cable beam |
| CN103244161A (en) * | 2013-05-23 | 2013-08-14 | 湖南科技大学 | Yielding type backing plate device |
| CN204238960U (en) * | 2014-11-26 | 2015-04-01 | 湖南科技大学 | A kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway |
-
2014
- 2014-11-26 CN CN201410689357.5A patent/CN104329106B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596496A (en) * | 1983-09-29 | 1986-06-24 | The Eastern Co. | Mine roof supporting truss system |
| CN202645599U (en) * | 2012-06-13 | 2013-01-02 | 山西潞安环保能源开发股份有限公司 | Adjustable combined member for surface protection |
| CN203022778U (en) * | 2012-12-20 | 2013-06-26 | 广西百色矿务局有限公司 | Left-hand thread pre-tightening device for side truss anchor cable beam |
| CN103075165A (en) * | 2013-01-10 | 2013-05-01 | 中国矿业大学(北京) | Composite supporting method of vertical beam of coal road |
| CN103244161A (en) * | 2013-05-23 | 2013-08-14 | 湖南科技大学 | Yielding type backing plate device |
| CN204238960U (en) * | 2014-11-26 | 2015-04-01 | 湖南科技大学 | A kind of roof bolt plate for the uneven roadway with large deformation country rock of half-coal rock roadway |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104329106A (en) | 2015-02-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20211126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |