CN202431282U - Tunnel protection device for thin coal seam mining - Google Patents
Tunnel protection device for thin coal seam mining Download PDFInfo
- Publication number
- CN202431282U CN202431282U CN2011205129044U CN201120512904U CN202431282U CN 202431282 U CN202431282 U CN 202431282U CN 2011205129044 U CN2011205129044 U CN 2011205129044U CN 201120512904 U CN201120512904 U CN 201120512904U CN 202431282 U CN202431282 U CN 202431282U
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- China
- Prior art keywords
- tunnel
- pillar
- seam mining
- coal seam
- protector
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- Expired - Fee Related
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Abstract
A tunnel protection device for thin coal seam mining comprises supporting columns (2) disposed in a tunnel. The top end of each column is in contact connection with the top of the tunnel and the bottom end of each column is in contact connection with the bottom of the tunnel. When height d1 of the tunnel is 1.4-1.6m, the columns are distributed in horizontal rows and in longitudinal rows. Distance d2 between each two adjacent column on a cross section of the tunnel is 0.9-1m. Distance d3 between each two adjacent column on a longitudinal section of the tunnel is 0.6-0.8m. Accordingly, protection requirement of the tunnel of the thin coal seam is met.
Description
One, technical field
The utility model relates to a kind of tunnel protector that is used for thin seam mining, and especially a kind of head-room that is applicable to is the protector of 1.2-1.5 rice.
Two, background technology
In order to keep the safety of mine, need protect mine, the tunnel protector that therefore is used for thin seam mining is an important mines device; In existing coal mining, with the exhaustion of person's mineral resources, the condition of the coal resource of available exploitation also more and more is restricted; Have particularly and exploited the drive that finishes, the next coal seam height is that 1.5 meters girdle can supply exploitation, exploits the tunnel in this coal seam; When protecting, roof pressure is big and base plate is soft, occurs the phenomenon at the bottom of roof cracking and the column drill easily; Make protection safety property not high, also do not have a kind of tunnel protector that is used for thin seam mining at present.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of the utility model provides a kind of tunnel protector that is used for thin seam mining, has therefore guaranteed the requirement of shelter in the tunnel of girdle.
For achieving the above object; The technical scheme that the utility model is taked is: include pillar, pillar is arranged in the tunnel, and the top of pillar is set to connect with the top layer contact in tunnel, the bottom is set to connects with the bottom contact in tunnel; When height of tunnel d1 is set to 1.4-1.6 rice; The arrangement mode that pillar is set to embark on journey into row distributes, and on the cross section in tunnel, is set to 0.9-1.1 rice apart from d2 between the two adjacent rows; On the longitudinal section in tunnel, be set to 0.6-0.8 rice apart from d3 between adjacent two row.
In the present technique scheme, girdle is meant that height of tunnel d1 is a 1.4-1.6 rice, and promptly the height in coal seam is a 1.4-1.6 rice.
Owing to designed pillar, make the tunnel obtain security protection, working space has appearred again, be more suitable for the exploitation in coal seam, therefore guaranteed the requirement of shelter in the tunnel of girdle.
The utility model has designed, and pillar is set to hydraulic prop.
The utility model has designed, and also includes protective screening, and protective screening is arranged on the top layer in tunnel.
The utility model has designed, and protective screening is set to mould netting.
Four, description of drawings
Fig. 1 is the sketch map of the utility model:
Fig. 2 is the A-A sectional drawing of Fig. 1.
Five, the specific embodiment
Accompanying drawing is first embodiment of the utility model, specifies present embodiment in conjunction with accompanying drawing, includes protective screening 1 and pillar 2; Protective screening 1 is arranged on the top layer in tunnel, and pillar 2 is arranged in the tunnel, and the top of pillar 2 is set to connect with the top layer contact in tunnel, the bottom is set to connects with the bottom contact in tunnel; When height of tunnel d1 is set to 1.4 meters; The arrangement mode that pillar 2 is set to embark on journey into row distributes, and on the cross section in tunnel, is set to 1.1 meters apart from d2 between the two adjacent rows; On the longitudinal section in tunnel, be set to 0.8 meter apart from d3 between adjacent two row.
In the present embodiment, pillar 2 is set to hydraulic prop.
In the present embodiment, protective screening 1 is set to mould netting.
In the tunnel, support pillar 2, make the tunnel obtain security protection, working space has appearred again, be more suitable for the exploitation in coal seam.
Among second embodiment of the utility model, when height of tunnel d1 is set to 1.6 meters, be set to 0.9 meter apart from d2 between adjacent two rows, be set to 0.6 meter apart from d3 between the two adjacent row.
Among the 3rd embodiment of the utility model, when height of tunnel d1 is set to 1.5 meters, be set to 1.0 meters apart from d2 between adjacent two rows, be set to 0.7 meter apart from d3 between the two adjacent row.
At height of tunnel d1 is in the 1.4-1.6 rice, and the scope of operation of exploitation is provided with the board-like coal-winning machine of shoveling coal, and in the tunnel, is provided with high-power 40T scraper-trough conveyer transporter.
The characteristics of the utlity model has down:
1, owing to designed pillar 2, make the tunnel obtain security protection, working space has appearred again, be more suitable for the exploitation in coal seam, therefore guaranteed the requirement of shelter in the tunnel of girdle.
2, owing to designed protective screening 1, improved barrier propterty.
In being used for the tunnel protector technical field of thin seam mining; Every pillar 2 that includes is arranged in the tunnel; The top of pillar 2 is set to connect with the top layer contact in tunnel, the bottom is set to connects with the bottom contact in tunnel; When height of tunnel d1 is set to 1.4-1.6 rice; The arrangement mode that pillar 2 is set to embark on journey into row distributes, and on the cross section in tunnel, is set to 0.9-1.1 rice apart from d2 between the two adjacent rows; On the longitudinal section in tunnel, the technology contents that is set to 0.6-0.8 rice apart from d3 between adjacent two row is all in the protection domain of the utility model.
Claims (4)
1. tunnel protector that is used for thin seam mining; It is characterized in that: include pillar (2), pillar (2) is arranged in the tunnel, and the top of pillar (2) is set to connect with the top layer contact in tunnel, the bottom is set to connects with the bottom contact in tunnel; When height of tunnel d1 is set to 1.4-1.6 rice; The arrangement mode that pillar (2) is set to embark on journey into row distributes, and on the cross section in tunnel, is set to 0.9-1.1 rice apart from d2 between the two adjacent rows; On the longitudinal section in tunnel, be set to 0.6-0.8 rice apart from d3 between adjacent two row.
2. the tunnel protector that is used for thin seam mining according to claim 1 is characterized in that: pillar (2) is set to hydraulic prop.
3. the tunnel protector that is used for thin seam mining according to claim 1 and 2 is characterized in that: also include protective screening (1), protective screening (1) is arranged on the top layer in tunnel.
4. the tunnel protector that is used for thin seam mining according to claim 3 is characterized in that: protective screening (1) is set to mould netting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205129044U CN202431282U (en) | 2011-12-12 | 2011-12-12 | Tunnel protection device for thin coal seam mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205129044U CN202431282U (en) | 2011-12-12 | 2011-12-12 | Tunnel protection device for thin coal seam mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431282U true CN202431282U (en) | 2012-09-12 |
Family
ID=46780741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205129044U Expired - Fee Related CN202431282U (en) | 2011-12-12 | 2011-12-12 | Tunnel protection device for thin coal seam mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365045A (en) * | 2020-03-30 | 2020-07-03 | 中铁隧道集团二处有限公司 | Rapid safety protection device after tunnel excavation and construction and protection method thereof |
-
2011
- 2011-12-12 CN CN2011205129044U patent/CN202431282U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365045A (en) * | 2020-03-30 | 2020-07-03 | 中铁隧道集团二处有限公司 | Rapid safety protection device after tunnel excavation and construction and protection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20131212 |