CN2125705U - U-shaped back plate - Google Patents
U-shaped back plate Download PDFInfo
- Publication number
- CN2125705U CN2125705U CN 92226036 CN92226036U CN2125705U CN 2125705 U CN2125705 U CN 2125705U CN 92226036 CN92226036 CN 92226036 CN 92226036 U CN92226036 U CN 92226036U CN 2125705 U CN2125705 U CN 2125705U
- Authority
- CN
- China
- Prior art keywords
- back plate
- backboard
- type
- shaped
- shape 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000011435 rock Substances 0.000 abstract description 14
- 239000003245 coal Substances 0.000 abstract description 7
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000010881 fly ash Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The U-shaped grooves at two ends of the U-shaped back plate are respectively embedded into the U-shaped grooves of two adjacent U-shaped steel supports, and the space behind the back plate is filled with materials such as fly ash and the like. And enclosing surrounding rocks around the roadway. The back plate not only has the function of the existing back plate, but also can avoid weathering and falling of rock strata around the roadway and oxidation and ignition of coal beds. Simple to operate can improve U shaped steel support canopy apart from the precision. The back plate is thin, and materials are saved.
Description
The utility model is a kind of backboard of roadway support U shape steel bracket.
In mine laneway, use the supporting of U shape steel bracket more, must lay backboard between the support, prevent the rock inbreak, be that safety in production is requisite.
The excavation support backboard is used plank lagging, metal backing, steel mesh reinforcement backboard, steel concrete backboard etc. (see 121 pages of metallic supports in galleries series, production department of Ministry of Coal Industry tissue is write, Coal Industry Press's in June, 1987 front page) more at present.Its shortcoming is peripheral rock can not be closed, and easily causes rock stratum weathering inbreak and coal seam oxidation to get angry.
The purpose of this utility model provides a kind of present use backplane technology performance that promptly possesses, and can be closed the tunnel-surrounding country rock again, avoids rock stratum weathering inbreak and coal seam oxidation to get angry, thereby has guaranteed the safety in production of mine.
The purpose of this utility model can realize in order to following method:
U type backboard two ends are designed to U type groove.When laying backboard, the U type groove at backboard two ends is embedded respectively in the U type groove of adjacent two U shape steel brackets, backboard will overlap coincidence mutually when laying, and does not stay the slit.The space of backboard back completely cuts off tunnel-surrounding country rock and air with flyash or the slag filling after pulverizing.
The utility model is compared existing backboard following advantage:
1, can the enclosing tunnel peripheral rock, thus rock stratum weathering inbreak avoided, and the coal seam oxidation is got angry.
2, easy for installation, can improve U shape steel bracket canopy apart from precision.
3, backboard is thin, saves material.
Accompanying drawing is that U type backboard is installed and structure chart.Figure one is U shape steel bracket drift section figure, and figure two is A-A sectional views of figure one, and figure three is a U type backboard front view, and figure four is a U type backboard vertical view.Wherein: 1-U shape steel bracket, 2-U type backboard, casting resins such as 3-flyash, 4-country rock, the U type groove of 5-U shape steel bracket, the U type groove of 6-U type backboard, 7-U type backboard loaded plate.
The utility model is described in further detail below with reference to accompanying drawing:
The U type groove 6 at U type backboard 2 two ends is embedded 5 li of the U type grooves of adjacent two U shape steel brackets respectively, because the U type groove 6 of U type backboard has certain rigidity, it just is stuck in 5 li of the U type grooves of U shape steel bracket firmly, thereby strengthen the tensile force of U type backboard loaded plate 7, so just improved the bearing capacity of U type backboard 2, U type backboard 2 will overlap overlap joint when laying and not stay the slit, U type backboard 2 injects casting resin 3 fillings such as flyash to the space between the country rock 4, enclosing tunnel peripheral rock 4, thereby avoid rock stratum weathering inbreak, the coal seam oxidation is got angry.Can improve the bearing capacity of U type backboard 2 in addition with following measures, one, strength bar is set or makes waveform groove perpendicular to U shape steel bracket 1 direction at U type backboard loaded plate 7.Two, the compound manufacturing of material that the U type groove 6 usefulness rigidity of U type backboard are big.When the radius of curvature of tunnel arcuate part hour, when U type backboard 2 is laid and U shape steel bracket 1 coincide, the U-shaped backboard 2 of arcuate part can manufacture with U shape steel bracket 1.
Claims (4)
1, a kind of U type backboard of tunnel U shape steel bracket special use is characterized in that, the loaded plate two ends are provided with U type groove.
2, U type backboard according to claim 1 is characterized in that, strength bar is set on loaded plate or it is made the waveform frid.
3, U type backboard according to claim 1 is characterized in that, U type groove is composited with the big material of rigidity.
4, U type backboard according to claim 1, when it is characterized in that being exclusively used in the arcuate part of support, U type backboard manufactures into same curvature with support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92226036 CN2125705U (en) | 1992-06-24 | 1992-06-24 | U-shaped back plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92226036 CN2125705U (en) | 1992-06-24 | 1992-06-24 | U-shaped back plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2125705U true CN2125705U (en) | 1992-12-23 |
Family
ID=4968111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92226036 Granted CN2125705U (en) | 1992-06-24 | 1992-06-24 | U-shaped back plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2125705U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996147A (en) * | 2012-12-29 | 2013-03-27 | 刘成明 | Coal mine underground roadway driving temporary supporting wall structure |
| CN103790597A (en) * | 2014-01-26 | 2014-05-14 | 太原理工大学 | Active backfilling support method with pressure support used |
| CN104832187A (en) * | 2015-04-03 | 2015-08-12 | 山东大学 | High-stress soft rock roadway supporting system with metal mesh backplane and construction method |
-
1992
- 1992-06-24 CN CN 92226036 patent/CN2125705U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996147A (en) * | 2012-12-29 | 2013-03-27 | 刘成明 | Coal mine underground roadway driving temporary supporting wall structure |
| CN103790597A (en) * | 2014-01-26 | 2014-05-14 | 太原理工大学 | Active backfilling support method with pressure support used |
| CN104832187A (en) * | 2015-04-03 | 2015-08-12 | 山东大学 | High-stress soft rock roadway supporting system with metal mesh backplane and construction method |
| CN104832187B (en) * | 2015-04-03 | 2017-03-29 | 山东大学 | A kind of high stress and soft rock mine roadway support system containing wire netting backboard and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |