CN201560775U - Temporary support device for coal mine tunneling - Google Patents
Temporary support device for coal mine tunneling Download PDFInfo
- Publication number
- CN201560775U CN201560775U CN2009202388406U CN200920238840U CN201560775U CN 201560775 U CN201560775 U CN 201560775U CN 2009202388406 U CN2009202388406 U CN 2009202388406U CN 200920238840 U CN200920238840 U CN 200920238840U CN 201560775 U CN201560775 U CN 201560775U
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- CN
- China
- Prior art keywords
- support device
- temporary support
- section steel
- steel beam
- forestope
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- Expired - Fee Related
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Abstract
The utility model relates to a temporary support device for coal mine tunneling. The device comprises two individual hydraulic props and a n-shaped steel girder. The individual hydraulic props are supported below the n-shaped steel girder, and the hydraulic props are connected with the n-shaped steel girder. The utility model overcomes the defects of the existing temporary support device, such as poor adaptability, poor safety, low support strength and low efficiency. The utility model has the advantage of strong adaptability, long use time, good safe performance, high support strength and high support efficiency.
Description
Technical field
The utility model relates to driving support technology field, colliery, particularly a kind of colliery driving temporary support device.
Background technology
At present, under coal mine, in the driving, extensively adopt and hang cantilever timbering as temporary lining.Hanging cantilever timbering temporary lining is in time to carry out forestope temporary lining behind big gun, forestope by two to three (according to the drift section quantification, the forestope spacing is generally 0.8-1.0 rice) use along the lane, forestope φ 89mm, wall thickness 3.5mm seamless steel pipe is made, length is not less than 3.7m, spacing is 0.8m, fix with anchor metal and suspension ring, suspension ring cut into the segment of wide 80mm with φ 150mm seamless steel pipe, bore the aperture of φ 20mm on it, every forestope is no less than two suspension ring during use, and suspension ring are fixed on the roofbolt with supporting anchor nut, and outer Rose is no less than two.The forestope top connects the top with wire lath earlier, and with 2 block specifications be again: length * wide * thick=1500 * 200 * 100mm plank connects the top.The forestope end is with screw and scraper-trough conveyer chain link or 10
#Iron wire is by on anti-skidding the roofbolt that is fixed on nearby, to prevent downslide.There are a lot of shortcomings in this temporary lining: bad adaptability, be applicable to when top board is more smooth, when behind the big gun takeoff in the vertical lane of the new top board that discloses, use forestope to increase and use timber to wear heights of roofs, with the increase of wearing the top layer number, the stability of wearing the jack rafter material just weakens, supporting intensity to top board greatly weakens, simultaneously, increase the engineering quantity of wearing the top, reduced efficiency; When the driving face false roof is thicker, the forestope that bends easily, forestope is changed frequent; Poor safety performance, it is long that the use forestope is worn the top time, untimely to roof timbering, causes roof delamination easily, uses for later tunnel to hide some dangers for; Supporting intensity is low; Supporting efficient is low, and adopting forestope needs 20 minutes approximately as temporary lining.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned shortcoming, a kind of colliery driving temporary support device to be provided.
For achieving the above object, the technical solution of the utility model is that a kind of colliery driving temporary support device comprises two hydraulic props and ∏ section steel beam, two hydraulic props are supported on ∏ section steel beam below, and hydraulic prop is bound up with iron wire with the ∏ section steel beam.
∏ section steel beam specification is long 2000mm, wide 100mm, and thick 50mm, two ends respectively are provided with a hole, are used for fixing the iron wire that connects with hydraulic prop.
The using method of colliery driving temporary support device is: after the development machine coal cutting, personnel enter boring head and tap earlier, personnel stand under the anchor pole of meeting head on, in the former anchor pole 1.1m position that sets of distance, install two hydraulic props and be supported on ∏ section steel beam below supporting roof, pillar props up the two ends that are located at the ∏ section steel beam, under the shielding of this supporting, continue to set again forward two hydraulic prop holder ∏ section steel beam supporting roofs, two the falseworks distances in front and back are not more than 1.1m, guarantee that tip to face distance is not more than 300mm, it is real that pillar rises tight liter with dustproof water, prop up column pressure 4-6MPa, and hydraulic prop is bound up with the 12# iron wire with the hole of ∏ section steel beam by the girder steel two ends, require the some post to rise the real top that connects, do not slip, forbid the operation of sky top.
Hydraulic prop uses must carry out following provisions:
(1) the vertical roof and floor of the pillar in the entry, inaccurate crooked; In inclined shaft, pillar will be met the mountain.
(2) temporary lining good after, the constructor sets anchor pole under temporary lining.
(3) during temporary lining, the constructor wants 2-3 people's close fit, and setting prop is wanted slowly, forbid sharp smash fluid injection gun, hydraulic prop fluid injection to adopt normal dustproof water, and hydraulic pressure 4-6Mpa falls to press pillar fluid infusion in time for preventing pillar.
(4) during permanent support, open the rig personnel and operate at the first row's anchor pole of meeting head on as far as possible with lining 300mm scope.
(5) order according to " from outside to inside " after permanent support finishes is outwelled temporary lining with off-load pursuing frame.One people holds up pillar when unloading pillar, and two people hold in the palm the ∏ section steel beam, and the upper plate Pi is taken down, and prevents to drop and hurts sb.'s feelings.
(6) tunnel of adopting hydraulic prop to do temporary lining must be equipped with following instrument: 1 of fluid injection gun, 1 one of pillar measuring cell, 2 of hydraulic props, one of ∏ section steel beam (determining its length according to span length).
The utlity model has following advantage with respect to existing temporary support device:
1, compliance is strong, when whether smooth top board is, can both well use.Particularly the new top board that discloses hangs down the lane when takeofing behind the big gun, uses forestope to increase and uses timber to wear heights of roofs, and with the increase of wearing the top layer number, the stability of wearing the jack rafter material just weakens, and the supporting intensity of top board is greatly weakened.Simultaneously, increase the engineering quantity of wearing the top, reduced efficiency.The utility model is not subjected to above factor affecting.
2, service time long, traditional forestope uses length to be 3.2-3.7 rice mostly, the steel pipe of diameter 108mm is made.When the driving face false roof is thicker, the forestope that bends easily, forestope is changed frequent.Use the utility model can reduce the supporting spacing, increase support density, effective to roof timbering.
3, security performance is good, and it is long that the use forestope is worn the top time, untimely to roof timbering, causes roof delamination easily, uses for later tunnel to hide some dangers for, and uses supporting of the present utility model to reduce these problems.
4, supporting intensity height adopts individual prop holder ∏ section steel beam supporting roof, adopts dustproof water as medium, dustproof water pressure is pressed 6Mpa and is calculated, and the support force of each pillar is 4.7T, by two supportings (four pillars calculate), total support force is 18.8T, far surpasses the support force of forestope.
5, supporting efficient height under the smooth situation of same top board, adopts individual prop holder ∏ section steel beam as temporary lining, needs 12 minutes approximately, and the conventional forestope of adopting needs 20 minutes approximately as temporary lining, and temporary lining efficient has improved 40%.
Description of drawings
Fig. 1 colliery driving temporary support device structural representation
Among the figure: 1, hydraulic prop 2, ∏ section steel beam 3, iron wire 4, hole
The specific embodiment
Embodiment is colliery driving temporary support device as shown in Figure 1, comprises that 1, two hydraulic prop 1 of two hydraulic props 1 and ∏ section steel beam is supported on ∏ section steel beam 2 belows, and hydraulic prop 1 is bound up with ∏ section steel beam 2 usefulness 12# iron wires 3.
∏ section steel beam 2 specifications are long 2000mm, wide 100mm, and thick 50mm, two ends respectively are provided with a hole 4, are used for fixing the iron wire 3 that connects with hydraulic prop 1.
Claims (2)
1. a colliery driving temporary support device is characterized in that it comprises two hydraulic props and П section steel beam, and two hydraulic props are supported on П section steel beam below, and hydraulic prop is bound up with iron wire with the П section steel beam.
2. colliery according to claim 1 driving temporary support device is characterized in that П section steel beam specification is long 2000mm, wide 100mm, and thick 50mm, two ends respectively are provided with a hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202388406U CN201560775U (en) | 2009-09-29 | 2009-09-29 | Temporary support device for coal mine tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202388406U CN201560775U (en) | 2009-09-29 | 2009-09-29 | Temporary support device for coal mine tunneling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201560775U true CN201560775U (en) | 2010-08-25 |
Family
ID=42625922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202388406U Expired - Fee Related CN201560775U (en) | 2009-09-29 | 2009-09-29 | Temporary support device for coal mine tunneling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201560775U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670470A (en) * | 2013-12-31 | 2014-03-26 | 大同煤矿集团有限责任公司 | Full coal roadway safe and speedy drivage supporting method |
| CN105507879A (en) * | 2015-12-24 | 2016-04-20 | 武汉海王机电工程技术公司 | Rotary nipple with pressure balancing mechanism |
| CN107227966A (en) * | 2017-06-22 | 2017-10-03 | 天地科技股份有限公司 | Temporary supporting device for laneway tunneling |
| CN111188643A (en) * | 2020-01-15 | 2020-05-22 | 陕西陕煤铜川矿业有限公司 | Supporting device applied to coal mining face and driving face operation |
-
2009
- 2009-09-29 CN CN2009202388406U patent/CN201560775U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670470A (en) * | 2013-12-31 | 2014-03-26 | 大同煤矿集团有限责任公司 | Full coal roadway safe and speedy drivage supporting method |
| CN105507879A (en) * | 2015-12-24 | 2016-04-20 | 武汉海王机电工程技术公司 | Rotary nipple with pressure balancing mechanism |
| CN107227966A (en) * | 2017-06-22 | 2017-10-03 | 天地科技股份有限公司 | Temporary supporting device for laneway tunneling |
| CN107227966B (en) * | 2017-06-22 | 2023-10-10 | 天地科技股份有限公司 | Temporary support device for tunnel excavation |
| CN111188643A (en) * | 2020-01-15 | 2020-05-22 | 陕西陕煤铜川矿业有限公司 | Supporting device applied to coal mining face and driving face operation |
| CN111188643B (en) * | 2020-01-15 | 2021-09-07 | 陕西陕煤铜川矿业有限公司 | Supporting device applied to coal mining face and driving face operation |
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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: 20100825 Termination date: 20100929 |