CN206129285U - Deep soft rock roadway under high stress crossover point supporting construction - Google Patents
Deep soft rock roadway under high stress crossover point supporting construction Download PDFInfo
- Publication number
- CN206129285U CN206129285U CN201621173281.1U CN201621173281U CN206129285U CN 206129285 U CN206129285 U CN 206129285U CN 201621173281 U CN201621173281 U CN 201621173281U CN 206129285 U CN206129285 U CN 206129285U
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- Prior art keywords
- crossover point
- supporting construction
- under high
- country rock
- soft rock
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Abstract
The patent of the utility model relates to a deep soft rock roadway under high stress crossover point supporting construction. This supporting construction mainly includes anchor bolt support in advance, and the medium term hunch of the anti - end of pressing the layer to execute work and later stage that lets is under construction. Execute immediately behind the crossover point section excavation of tunnel and make anchor bolt support to the deforming and breaking of control country rock, and then, execute to do to have letting the rubber granule concrete lining of pressure effect after the deformation of country rock obtains control, the crustal stress of crossover point department tunnel country rock is further released to the elastic potential energy of utilizing rubber granule concrete, for controlling the pucking effectively, carry out the construction of hunch of the anti - end in the bottom at last, multi -pronged mode improves the stability of crossover point department tunnel country rock. This supporting construction atress is equitable, adopts the means that combine together with the resistance to compression of pressing that let, has improved the intensity of a watch box in the time of release country rock crustal stress, has good using value and economic benefits. The crossover point department that is particularly useful for big buried depth and heavily stressed colliery struts.
Description
Technical field
This utility model is related to a kind of weak-soft rock entry under high stress crossover point supporting construction, and the structure can be with generally applicable
In the supporting of underground engineering Large chamber crossover point, it is particularly suited for the supporting of great burying and heavily stressed large section roadway.
Background technology
With the development of colliery industry, Roadway Support Technology obtains the development advanced by leaps and bounds.As economic develops rapidly,
Mankind's activity constantly develops to deep underground, and according to incompletely statistics, the external deep metal mine of super km of exploiting has 80
Many, wherein up to South Africa.The mining depth of South Africa overwhelming majority gold mine is mostly in 1000 below m.China's coal-mine is exploited
Depth capacity arrived 1070m；South Africa exploitation of gold deposit depth reaches 3800m.Deep mining and shallow mining rock mass engineering project mechanics
The adverse circumstances for differring primarily in that " three-hypers one are disturbed " of characteristic, the disaster in the underground mining of deep increase increasingly, such as impact
Ground pressure, gas explosion, the big, rheological phenomena of rock deformation etc..Deep stress is different from superficial part stress distribution law, due to level
The effect of tectonic stress, commonly greater than vertical weight stress, the geology harm which produces is more serious for deep horizontal crustal stress.Cave
The section of room is big, change little many, length, service year limit for length, construction quality have high demands, therefore its stress is complicated, it is difficult to accurate
Analysis, difficulty of construction are big, and supporting is relatively difficult.Traditional supporting construction is only with the mode for applying supporting drag, such as early stage
Log hut supporting, progressively developed into canopy lower limb capplce supporting, H-shaped steel supporting, concrete spraying support that cement pours later, then
Bolting with wire mesh, bolt-spary supports, bolt-mesh-spurting supporting, bolt-mesh-anchor support, U-shaped steel canopy and combined support with bolt-net-cable were developed into later, were mixed
Solidifying soil reinforcing bar concrete placings supporting etc..But the heavily stressed large section roadway in deep has no longer been suitable for traditional support pattern at present, therefore
Need the means of employing new technology badly to solve the difficult problem that superficial part had not occurred.
The content of the invention
The purpose of this utility model is to provide a kind of weak-soft rock entry under high stress crossover point supporting construction, is mainly used in
Supporting at great burying and heavily stressed underground engineering crossover point, can significantly solve problem of stress concentration during large cross section excavation, show
The stability for improving tunnel at crossover point is write, many technical barriers are solved, good Social and economic benef@is obtained.
A kind of weak-soft rock entry under high stress crossover point supporting construction, is the T-steel band by high-strength resin twisted steel anchor rod,
Grouted anchor bar, encircle high-strength screw-thread steel at anti-bottom, and encircle grouted anchor bar, anti-bottom arched girder at anti-bottom, and bottom is encircleed back-up coat and allows laminate layer to constitute, and which is special
Levy and be：It is described allow laminate layer be fill rubber grain C30 concrete liner structure, bottom arch back-up coat be admixture steel fibre
C35 concrete.
Used as improvement, anti-bottom arch high-strength screw-thread steel is Ф 20mmx1600mm high-strength screw-thread steel muscle, arranges 11 per section.
Used as improvement, grouted anchor bar is Ф 22mmx2500mm, arranges 8 per section.
Used as improvement, high-strength resin twisted steel anchor rod is Ф 22mmx3000mm, arranges 15 per section.
The beneficial effects of the utility model are：The supporting construction is essentially identical with traditional support construction technique, to
The work surface that Jing is excavated carries out cross dimensions measurement, it is determined that the relevant parameter that anchor pole is applied in advance.Subsequently work as deforming for country rock
Apply to control and allow laminate layer, anti-bottom arch construction is carried out finally according to section configuration.The structure can by the way of combination using anti-allowing
The crustal stress of the roadway surrounding rocks of large-sized section such as enough deep crossover points of release well, can reduce excavation face stress concentration again,
But also the intensity of surrounding rock supporting body can be improved, prevent the generation of pucking.The personal wealth of staff can preferably be protected
Produce safety.The structure is widely used in the supporting of underground engineering, is particularly suited for the supporting of great burying and heavily stressed coal mine roadway.
Description of the drawings
A kind of weak-soft rock entry under high stress crossover point supporting construction schematic diagrams of Fig. 1.
Reference：（1）High-strength resin twisted steel anchor rod；（2）T-steel band；（3）Grouted anchor bar；（4）The strong spiral shell of anti-bottom sagitta
Stricture of vagina steel；（5）Encircle grouted anchor bar in anti-bottom；（6）Anti- bottom arched girder；（7）Encircle back-up coat in bottom；（8）Allow laminate layer.
Specific embodiment
Referring to Fig. 1, it is described as follows：The supporting construction is essentially identical with traditional support construction technique, different from tradition
Supporting construction is the not exclusively single supporting drag for improving prop, but also by the bullet of rubber grain concrete
Property potential energy release a part crustal stress.Work surface to having excavated carries out cross dimensions measurement, it is determined that anchor pole is applied in advance
Relevant parameter.The subsequently deformation in country rock is obtained applying during control and allows laminate layer, allows laminate layer to be the C30 coagulations for filling rubber grain
Soil.Anti- bottom arch construction is carried out finally according to section configuration, anti-bottom arch high-strength screw-thread steel during construction, is first laid, anti-bottom arch is subsequently applied
The C35 concrete of admixture steel fibre is finally built into bottom arch back-up coat by beam.
A kind of weak-soft rock entry under high stress crossover point supporting construction, by high-strength resin twisted steel anchor rod 1, T-steel band 2,
Grouted anchor bar 3, anti-bottom arch high-strength screw-thread steel 4, anti-bottom arch grouted anchor bar 5, anti-bottom arched girder 6, bottom arch back-up coat 7 and allow 8 groups of laminate layer
Into, it is characterised in that：It is described to allow the liner structure that laminate layer is the C30 concrete for filling rubber grain, bottom to encircle back-up coat for admixture
The C35 concrete of steel fibre.
Used as improvement, anti-bottom arch high-strength screw-thread steel is Ф 20mmx1600mm high-strength screw-thread steel muscle, arranges 11 per section.
Used as improvement, grouted anchor bar is Ф 22mmx2500mm, arranges 8 per section.
Used as improvement, high-strength resin twisted steel anchor rod is Ф 22mmx3000mm, arranges 15 per section.
Claims (3)
1. a kind of weak-soft rock entry under high stress crossover point supporting construction, is by high-strength resin twisted steel anchor rod（1）, T-steel band
（2）, grouted anchor bar（3）, anti-bottom encircle high-strength screw-thread steel（4）, anti-bottom encircle grouted anchor bar（5）, anti-bottom arched girder（6）, bottom arch back-up coat
（7）With allow laminate layer（8）Composition, it is characterised in that：The laminate layer that allows（8）To fill the lining cutting knot of the C30 concrete of rubber grain
Structure, bottom arch back-up coat（7）To fill the C35 concrete of steel fibre.
2., according to a kind of weak-soft rock entry under high stress crossover point supporting construction described in claim 1, it is characterized in that：Anti- bottom arch
High-strength screw-thread steel（4）For Ф 20mmx1600mm high-strength screw-thread steel muscle, 11 are arranged per section.
3., according to a kind of weak-soft rock entry under high stress crossover point supporting construction described in claim 1, it is characterized in that：Slip casting anchor
Bar（3）For Ф 22mmx2500mm, 8 are arranged per section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173281.1U CN206129285U (en) | 2016-10-27 | 2016-10-27 | Deep soft rock roadway under high stress crossover point supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173281.1U CN206129285U (en) | 2016-10-27 | 2016-10-27 | Deep soft rock roadway under high stress crossover point supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129285U true CN206129285U (en) | 2017-04-26 |
Family
ID=58575534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621173281.1U Expired - Fee Related CN206129285U (en) | 2016-10-27 | 2016-10-27 | Deep soft rock roadway under high stress crossover point supporting construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129285U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222962A (en) * | 2018-03-28 | 2018-06-29 | 中国矿业大学(北京) | A kind of placing concrete opening steel pipe for allowing anti-binding prevents pucking device and technology |
| CN109681237A (en) * | 2018-12-20 | 2019-04-26 | 上海应用技术大学 | A kind of supporting construction and construction method of Soft Rock Roadway Floor Heave |
| CN110030014A (en) * | 2019-03-18 | 2019-07-19 | 辽宁工程技术大学 | A kind of Soft Rock Roadway Floor Heave allows pressure camber shell administering method |
| CN113550768A (en) * | 2021-09-03 | 2021-10-26 | 淮北市平远软岩支护工程技术有限公司 | Y-shaped roadway supporting method and auxiliary equipment for roadway with high rock burst |
-
2016
- 2016-10-27 CN CN201621173281.1U patent/CN206129285U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222962A (en) * | 2018-03-28 | 2018-06-29 | 中国矿业大学(北京) | A kind of placing concrete opening steel pipe for allowing anti-binding prevents pucking device and technology |
| CN108222962B (en) * | 2018-03-28 | 2023-11-28 | 中国矿业大学(北京) | Device and method for preventing and controlling bottom drum of anti-bonding cast concrete open steel pipe |
| CN109681237A (en) * | 2018-12-20 | 2019-04-26 | 上海应用技术大学 | A kind of supporting construction and construction method of Soft Rock Roadway Floor Heave |
| CN110030014A (en) * | 2019-03-18 | 2019-07-19 | 辽宁工程技术大学 | A kind of Soft Rock Roadway Floor Heave allows pressure camber shell administering method |
| CN113550768A (en) * | 2021-09-03 | 2021-10-26 | 淮北市平远软岩支护工程技术有限公司 | Y-shaped roadway supporting method and auxiliary equipment for roadway with high rock burst |
| CN113550768B (en) * | 2021-09-03 | 2022-07-12 | 淮北市平远软岩支护工程技术有限公司 | Y-shaped roadway supporting method and auxiliary equipment for roadway with high rock burst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20171027 |