CN204532363U - The built-up arch suspension device in tunnel - Google Patents
The built-up arch suspension device in tunnel Download PDFInfo
- Publication number
- CN204532363U CN204532363U CN201420864144.7U CN201420864144U CN204532363U CN 204532363 U CN204532363 U CN 204532363U CN 201420864144 U CN201420864144 U CN 201420864144U CN 204532363 U CN204532363 U CN 204532363U
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- Prior art keywords
- anchor
- layer
- hole
- shaped clamp
- concrete
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Abstract
The utility model relates to a kind of built-up arch suspension device of tunnel, comprises anchor beam supporting mechanism, layer of concrete and is anchored at the metal net layer of layer of concrete periphery; By anchor beam supporting mechanism, top board is installed in the inner side at the top of described layer of concrete, this anchor beam supporting mechanism comprises the anchor beam main body of arc, upper anchor pole and U-shaped clamp, a baffle plate is welded at the two ends of described anchor beam main body respectively, radial direction along anchor beam main body is provided with several to anchor hole, in often pair of anchor hole, equal correspondence passes anchor pole on a pair, the corresponding U-shaped clamp of anchor pole on a pair, the both sides of described U-shaped clamp are respectively arranged with a through hole, and described upper anchor pole is provided with bolt after passing the through hole of anchor hole and U-shaped clamp.Effective generation having contained roof accident especially roof fall accident, ensure that back safety.
Description
Technical field
The utility model relates to a kind of built-up arch suspension device of tunnel, for the security fields in colliery.
Background technology
Mine of Longkou Mining Area is the typical Tertiary Period " soft rock " mining area, and field with "nine squares" coal measure strata forms primarily of mud stone, Oil Shale, argillaceous rocks, charcoal mudrock, oil shale, coal and sandstone.Rock stratum uniaxial compressive strength 5.3 ~ 44.3Mpa, major part is less than 20Mpa, loose crushing, adhesion stress and angle of internal friction little, short from the steady time, belong to IV, V soft class surrounding rock, containing montmorillonite, Kaolin expansion mineral in major part rock stratum, rock easily absorbs water disintegration, and rock stratum has rheological behavior, be typical " three is soft " stratum, strata behaviors is larger.
The Liang Jia colliery initial stage adopts Bolt net and jet flexible support, soft-rock tunnel roof fall is normally because roof strata produces two shear cracks obliquely upward along tunnel two cheek, and larger absciss layer is greater than anchor rod anchored length, and the prop that Bolt net and jet is formed is not enough to the deadweight maintaining absciss layer overlying strata, slightly external force impact, namely cause roof delamination overlying strata along two shear crack inbreaks, emit falling bodies mostly to be down wedge-like.
Summary of the invention
For overcoming the defect of prior art, the utility model provides a kind of built-up arch suspension device of tunnel, the technical solution of the utility model is: a kind of built-up arch suspension device of tunnel, comprises anchor beam supporting mechanism, layer of concrete and is anchored at the metal net layer of layer of concrete periphery; By anchor beam supporting mechanism, top board is installed in the inner side at the top of described layer of concrete, this anchor beam supporting mechanism comprises the anchor beam main body of arc, upper anchor pole and U-shaped clamp, a baffle plate is welded at the two ends of described anchor beam main body respectively, radial direction along anchor beam main body is provided with several to anchor hole, in often pair of anchor hole, equal correspondence passes anchor pole on a pair, the corresponding U-shaped clamp of anchor pole on a pair, the both sides of described U-shaped clamp are respectively arranged with a through hole, and described upper anchor pole is provided with bolt after passing the through hole of anchor hole and U-shaped clamp.
In the both sides of layer of concrete and metal net layer, side anchor bar is installed.
The utility model has the advantages that:
(1) form bearing-load arch: due to the suspension function of anchor pole, three groups of fixing anchor beam (three to) anchor poles by back along forming an overall extruding bearing-load arch between anchor beam and fixing anchor bar anchored end thereof, common pressure-bearing.
(2) multiple equilibrium supporting role: anchor beam is rigidity, makes anchoring rod by anchor beam uniform stressed; Anchor beam can stop the local distortion of top board simultaneously, thus improves top board force-bearing situation, makes roof timbering body uniform-compression as much as possible.
(3) plate-girder effect: according to above-mentioned fall of ground situation analysis, Collapsed zone is generally down wedge shape, such anchor beam is 30 ~ 45 degree of angles by two ends fixing anchor bar and level, relatively stable rock stratum is covered deeply, beyond Collapsed zone, anchor beam two ends are fixed, form plate-girder, by tunnel top-lifting, stop it to sink.
(4) compound beam effect: anchor beam and anchoring rod thereof the built-up arch formed that presses together jointly forms compound beam and supports back.
Once supporting adopts Bolt net and jet flexible support (layer of concrete and metal net layer), and secondary supporting adopts anchor beam to strengthen back supporting, has effectively stopped the extremely incident roof fall accident building the ore deposit initial stage, and anchor beam can renovate, multiplexing.Progressively establish the critical role of Bolt net and jet anchor beam combined supporting form at Mine of Longkou Mining Area soft rock supporting, effectively contained the generation of roof accident especially roof fall accident, ensure that back safety.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present utility model;
Fig. 2 is the annexation schematic diagram of upper anchor pole and anchor beam in Fig. 1;
Fig. 3 is the annexation schematic diagram of U-shaped clamp and anchor pole in Fig. 1.
Detailed description of the invention
Further describe the utility model below in conjunction with specific embodiment, advantage and disadvantage of the present utility model will be more clear along with description.But these embodiments are only exemplary, do not form any restriction to scope of the present utility model.It will be understood by those skilled in the art that and do not departing under spirit and scope of the present utility model and can modify to the details of technical solutions of the utility model and form or replace, but these amendments and replacement all fall in protection domain of the present utility model.
See Fig. 1 to Fig. 3, the utility model relates to a kind of built-up arch suspension device of tunnel, comprises anchor beam supporting mechanism, layer of concrete 1 and is anchored at the metal net layer 2 of layer of concrete 1 periphery; By anchor beam supporting mechanism, top board 3 is installed in the inner side at the top of described layer of concrete 1, this anchor beam supporting mechanism comprises the anchor beam main body 4 of arc, upper anchor pole 5 and U-shaped clamp 6, a baffle plate 7 is welded at the two ends of described anchor beam main body 4 respectively, radial direction along anchor beam main body 4 is provided with several to anchor hole, in often pair of anchor hole, equal correspondence passes anchor pole 5 on a pair, the both sides of described U-shaped clamp 6 are respectively arranged with a through hole, are provided with bolt after described upper anchor pole 5 passes the through hole of anchor hole and U-shaped clamp 6.In the both sides of layer of concrete 1 and metal net layer 2, side anchor bar 8 is installed.
Claims (2)
1. the built-up arch suspension device in tunnel, is characterized in that, comprises anchor beam supporting mechanism, layer of concrete and is anchored at the metal net layer of layer of concrete periphery; By anchor beam supporting mechanism, top board is installed in the inner side at the top of described layer of concrete, this anchor beam supporting mechanism comprises the anchor beam main body of arc, upper anchor pole and U-shaped clamp, a baffle plate is welded at the two ends of described anchor beam main body respectively, radial direction along anchor beam main body is provided with several to anchor hole, in often pair of anchor hole, equal correspondence passes anchor pole on a pair, the corresponding U-shaped clamp of anchor pole on a pair, the both sides of described U-shaped clamp are respectively arranged with a through hole, and described upper anchor pole is provided with bolt after passing the through hole of anchor hole and U-shaped clamp.
2. the built-up arch suspension device in tunnel according to claim 1, is characterized in that, is provided with side anchor bar in the both sides of layer of concrete and metal net layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864144.7U CN204532363U (en) | 2014-12-31 | 2014-12-31 | The built-up arch suspension device in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864144.7U CN204532363U (en) | 2014-12-31 | 2014-12-31 | The built-up arch suspension device in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532363U true CN204532363U (en) | 2015-08-05 |
Family
ID=53746385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420864144.7U Expired - Fee Related CN204532363U (en) | 2014-12-31 | 2014-12-31 | The built-up arch suspension device in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532363U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756703A (en) * | 2016-04-25 | 2016-07-13 | 太原理工大学 | Room type goaf filling method |
| CN105971606A (en) * | 2016-05-05 | 2016-09-28 | 湖南科技大学 | Extremely-thick coal seam longwall working face mining method |
| CN108798737A (en) * | 2018-08-27 | 2018-11-13 | 邓立杰 | A kind of movable outstanding shield bone plate supporting construction in tunnel |
| CN109139068A (en) * | 2018-09-17 | 2019-01-04 | 龙口矿业集团有限公司 | Soft-rock tunnel anchor beam method for protecting support |
| CN111456768A (en) * | 2020-04-21 | 2020-07-28 | 青岛理工大学 | Supporting device and method for mine roadway |
-
2014
- 2014-12-31 CN CN201420864144.7U patent/CN204532363U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756703A (en) * | 2016-04-25 | 2016-07-13 | 太原理工大学 | Room type goaf filling method |
| CN105756703B (en) * | 2016-04-25 | 2017-10-31 | 太原理工大学 | A kind of placement method in room formula goaf |
| CN105971606A (en) * | 2016-05-05 | 2016-09-28 | 湖南科技大学 | Extremely-thick coal seam longwall working face mining method |
| CN105971606B (en) * | 2016-05-05 | 2018-08-17 | 湖南科技大学 | A kind of thick sandstone coal wall recovery method |
| CN108798737A (en) * | 2018-08-27 | 2018-11-13 | 邓立杰 | A kind of movable outstanding shield bone plate supporting construction in tunnel |
| CN108798737B (en) * | 2018-08-27 | 2023-09-12 | 邓立杰 | Movable suspension bone plate supporting structure for roadway |
| CN109139068A (en) * | 2018-09-17 | 2019-01-04 | 龙口矿业集团有限公司 | Soft-rock tunnel anchor beam method for protecting support |
| CN111456768A (en) * | 2020-04-21 | 2020-07-28 | 青岛理工大学 | Supporting device and method for mine roadway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |