CN205370580U - Deep is moved by force and is carried tunnel scour protection resistance to compression supporting construction - Google Patents
Deep is moved by force and is carried tunnel scour protection resistance to compression supporting construction Download PDFInfo
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- CN205370580U CN205370580U CN201620123516.XU CN201620123516U CN205370580U CN 205370580 U CN205370580 U CN 205370580U CN 201620123516 U CN201620123516 U CN 201620123516U CN 205370580 U CN205370580 U CN 205370580U
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Abstract
The utility model discloses a deep is moved by force and is carried tunnel scour protection resistance to compression supporting construction, it includes three layer construction, it is that contractibility U shaped steel is strutted that the outmost bolting and shotcreting of being, intermediate level are syntactic foams metal material (scour protection resist compression layer ), inlayer. Outmost is that the part is strengthened to the peripheral shell in tunnel, adopts surrender stock and anchor rope to strut, has both reached and has united peripheral rock mass, improves rock mass bulk strength and bearing capacity, can strengthen again and be out of shape the adaptability of resisting, syntactic foams metal material is adopted in the intermediate level, is in its fastening form main scour protection resist compression layer on bolting and shotcreting's the outside concrete spray -up, improve the dynamic pressure bearing capacity of tunnel structure, inlayer contractibility U shaped steel is strutted to play the monolithic stability and support anti masterpiece and is used. The utility model discloses the structure is applicable to the deep has the roadway support that rock burst is dangerous, reaches the hard and soft compatible effect of strutting.
Description
Technical field:
This utility model relates to roadway support field, is particularly suited for the roadway support that deep has bump dangerous.
Background technology:
Tunnel is by the important channel of the systems such as underground mine transport, ventilation, draining, power supply, is the key point of shaft production continuity.Shallow pay producing or the good Drift stability of geological conditions are good, and dynamic pressure breakoff phenomenon is not serious.But being as China's coal-mine resource exploitation to develop to deep gradually, complicated condition, crustal stress is big, the generation frequency of dynamic pressure gets more and more, its hazardness also increases further, causes periphery, tunnel shell to destroy, collapse and personnel casualty accidents, Safety of Coal Mine Production causes great harm.Although taking many measures in recent years, but the total degree of the rock blast hazard of whole nation mine generation does not reduce.Accident is pressed with having 150 many places mine generation overbump in the current whole nation, and along with coal mining depth is constantly deepened, this dynamic phenomenon will be more violent.Existing coal mine support structure is all the supporting construction under static pressure from surrounding rock mostly, such as bolting with wire mesh, bolt-spary supports, U-shaped steel canopy supporting, large hydraulic bracket support etc., although these structures can reinforce the stability of country rock, but its deformation opposing adaptability is poor, it is impossible to the bump effect that adaptive time is short and intensity is big.Visible, the preventing and controlling task of China's bump is very arduous, has the urgency of reality and long-range important meaning.
And the roadway support having bump dangerous for deep it is critical to accomplish 2 points: the first, improve tunnel and resist the bearing capacity of deep underground bump load by improving the bearing capacity of structure self, second, adapt with surrouding rock deformation to a certain extent.Existing supporting construction such as bolting with wire mesh, bolt-spary supports, U-shaped steel canopy supporting, large hydraulic bracket support etc. all can not meet above 2 requirements well.Strong dynamic load tunnel, this utility model deep erosion control compression supporting structure first improves the bearing capacity of country rock by outermost bolt-spary supports, then by intermediate layer composite foam metal material (erosion control resistance to compression layer) shock absorbing load apparatus with shock absorbing, finally play monolithic stability by innermost layer Telescopic U-shaped steel supporting and support effect of elastic resistance.This utility model is to ensureing that Safety of Coal Mine Production has very important actual application value.
Utility model content:
Problem to be solved in the utility model is to provide the roadway support structure that a kind of deep has bump dangerous.
Strong dynamic load tunnel, the technical scheme is that deep of this utility model erosion control compression supporting structure, it includes three-decker, outermost layer is bolt-spary supports, intermediate layer be composite foam metal material (erosion control resistance to compression layer), innermost layer is Telescopic U-shaped steel supporting, and this utility model is applicable to the roadway support that deep has bump dangerous.
Described outermost layer is that bolt-mesh-spurting supporting is made up of anchor pole, anchor cable, concrete combined supporting, and anchor pole adopts rhombus to arrange, length is 1.2～1.5m, and spacing is about 0.5m, and anchor force is 50～70kN；Described anchor cable adopts rectangular arrangement, and length is 5～10m, and spacing is not less than 1/3rd of anchor cable length, is typically located in the top country rock in tunnel.Adopt surrender bolting and rope support, both reached combined with peripheral rock mass, improve rock mass bulk strength and bearing capacity, the adaptability of deformation opposing can be strengthened again；Described concrete ejection is no less than 200mm.Outermost layer constitutes periphery, tunnel shell reinforcing section.
Described intermediate layer is composite foam metal material, as the erosion control resistance to compression layer of whole supporting construction, reaches to cut down compressional wave peak value, improves the distribution of structural perimeter load, reduces the buffering energy-absorbing function of structural dynamic response；Described composite foam metal material is, molding blended by cenosphere and metallic matrix, solidification and a kind of foamed materials of obtaining, and its thickness is 60～80mm, and aperture has higher energy absorption ability and energy absorbing efficiency when being 154 μm；
Described innermost layer is made up of bar-mat reinforcement, Telescopic U-shaped steel and connecting elements, the bar diameter of described bar-mat reinforcement is 3mm, the aperture of net is not less than 2mm, described Telescopic U-shaped steel is made up of pull bar between back timber, post lower limb, connector and frame, intensity at least uses model to be 29U, and its supporting is smaller than 700mm.Innermost layer constitutes inner structure support section, plays monolithic stability and supports effect of elastic resistance.
This utility model has the advantage that and has the benefit effect that strong dynamic load tunnel, deep erosion control compression supporting structure, it includes three-decker, particularly composite foam metal material in intermediate layer is as erosion control resistance to compression layer, constant load can be kept, thus showing excellent energy snubber and absorbent properties within the scope of a sizable dependent variable.This utility model can solve the roadway support difficult problem that deep has bump dangerous.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of this utility model composite foam metal material
Fig. 3 is the structural representation of this utility model Telescopic U-shaped steel.
Wherein: 1-bolt-spary supports, 2-anchor pole, 3-anchor cable, 4-concrete spray coating, 5-composite foam metal material, 6-Telescopic U-shaped steel supporting, the U-shaped steel in 7-upper strata, the U-shaped steel of 8-lower floor, 9-card cable formula hoop tool.
Detailed description of the invention:
Below in conjunction with accompanying drawing and specific embodiment, this utility model is described in detail.
As it is shown in figure 1, strong dynamic load tunnel, deep described in the utility model erosion control compression supporting structure is made up of three parts, outermost layer is bolt-spary supports 1, intermediate layer be composite foam metal material 5, innermost layer is Telescopic U-shaped steel supporting 6.
First the tunnel just dug is carried out bolt-spary supports, by the anchor pole 2 that length is 1.2～1.5m, it is evenly arranged in country rock with 0.5 meter for an interval, then gunite concrete 4, after the roadway surrounding rock of bolt-spary supports 1 is stable, anchor cable 3 is being arranged in the country rock of top, tunnel.Adopt surrender bolting and rope support, can either combined with peripheral rock mass, improve rock mass bulk strength and bearing capacity, the adaptability of deformation opposing can be strengthened again.
Then arranging composite foam metal material, its thickness is 60～80mm, secures it within and forms main erosion control resistance to compression layer on the outside concrete spray coating of bolt-spary supports, improves the dynamic pressure bearing capacity in tunnel.
Last at innermost layer layout bar-mat reinforcement, Telescopic U-shaped steel and connecting elements, intensity at least selects 29U, and supporting spacing should be less than 700mm, plays monolithic stability and supports effect of elastic resistance.
Claims (4)
1. strong dynamic load tunnel, deep erosion control compression supporting structure, it includes three-decker, outermost layer is bolt-spary supports, intermediate layer be composite foam metal material erosion control resistance to compression layer, innermost layer is Telescopic U-shaped steel supporting, it is characterized in that: composite foam metal material is fastened on the outside concrete spray coating of described bolt-spary supports and forms main erosion control resistance to compression layer, improve the dynamic pressure bearing capacity of tunnel structure；Described bolt-spary supports, composite foam metal material and Telescopic U-shaped steel supporting collectively form the supporting construction of " firm-soft-firm ".
2. strong dynamic load tunnel, deep according to claim 1 erosion control compression supporting structure, it is characterized in that: described outermost layer is that bolt-mesh-spurting supporting is made up of anchor pole, anchor cable, concrete combined supporting, anchor pole adopts rhombus to arrange, length is 1.2～1.5m, spacing is about 0.5m, and anchor force is 50～70kN；Described anchor cable adopts rectangular arrangement, and length is 5～10m, and spacing is not less than 1/3rd of anchor cable length；Described concrete ejection is no less than 200mm.
3. strong dynamic load tunnel, deep according to claim 1 erosion control compression supporting structure, it is characterised in that: described intermediate layer is composite foam metal material, as the erosion control resistance to compression layer of whole supporting construction, plays the effect of buffering, energy-absorbing；Described composite foam metal material is, molding blended by cenosphere and metallic matrix, solidification and a kind of foamed materials of obtaining, and its thickness is 60～80mm, and aperture has higher energy absorption ability and energy absorbing efficiency when being 154 μm.
4. strong dynamic load tunnel, deep according to claim 1 erosion control compression supporting structure, it is characterized in that: described innermost layer is made up of bar-mat reinforcement, Telescopic U-shaped steel and connecting elements, the bar diameter of described bar-mat reinforcement is 3mm, the aperture of net is not less than 2mm, described Telescopic U-shaped steel is made up of pull bar between back timber, post lower limb, connector and frame, intensity at least uses model to be 29U, and its supporting is smaller than 700mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123516.XU CN205370580U (en) | 2016-02-16 | 2016-02-16 | Deep is moved by force and is carried tunnel scour protection resistance to compression supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123516.XU CN205370580U (en) | 2016-02-16 | 2016-02-16 | Deep is moved by force and is carried tunnel scour protection resistance to compression supporting construction |
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| CN205370580U true CN205370580U (en) | 2016-07-06 |
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| CN201620123516.XU Expired - Fee Related CN205370580U (en) | 2016-02-16 | 2016-02-16 | Deep is moved by force and is carried tunnel scour protection resistance to compression supporting construction |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401605A (en) * | 2016-12-16 | 2017-02-15 | 安徽理工大学 | U-shaped steel reinforced composite anchor net support structure for high-stress soft rock tunnel of deep well and construction method thereof |
| CN108301850A (en) * | 2018-02-12 | 2018-07-20 | 山东建筑大学 | Pressure relief support structure and method are helped in a kind of bottoms Qiang Dinggu two suitable for workings subject to dy namic pressure |
| CN108763705A (en) * | 2018-05-18 | 2018-11-06 | 辽宁工程技术大学 | A kind of design method of induction type erosion control energy-absorbing support unit |
| CN112065461A (en) * | 2020-10-22 | 2020-12-11 | 中国矿业大学(北京) | Deep round tunnel anti-impact supporting method |
| CN113605928A (en) * | 2021-09-17 | 2021-11-05 | 辽宁工程技术大学 | Negative-rigidity roadway O-shaped shed support capable of repeatedly buffering vibration attenuation and energy absorption coupling effect |
| CN114320394A (en) * | 2021-12-02 | 2022-04-12 | 济宁学院 | Tunnel scour protection resistance to compression supporting device based on deep dynamic load |
| CN115059505A (en) * | 2022-07-04 | 2022-09-16 | 河南金源黄金矿业有限责任公司 | Foamed concrete combined supporting structure and method |
-
2016
- 2016-02-16 CN CN201620123516.XU patent/CN205370580U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401605A (en) * | 2016-12-16 | 2017-02-15 | 安徽理工大学 | U-shaped steel reinforced composite anchor net support structure for high-stress soft rock tunnel of deep well and construction method thereof |
| CN106401605B (en) * | 2016-12-16 | 2019-04-30 | 安徽理工大学 | Deep-well high stress and soft rock mine roadway U-shaped steel enhances composite anchored net supporting construction and its construction method |
| CN108301850A (en) * | 2018-02-12 | 2018-07-20 | 山东建筑大学 | Pressure relief support structure and method are helped in a kind of bottoms Qiang Dinggu two suitable for workings subject to dy namic pressure |
| CN108301850B (en) * | 2018-02-12 | 2023-08-25 | 山东建筑大学 | Strong top-bottom-fixing two-side pressure relief supporting structure and method suitable for dynamic pressure roadway |
| CN108763705B (en) * | 2018-05-18 | 2022-11-29 | 辽宁工程技术大学 | Design method of induced impact-resistant energy-absorbing support member |
| CN108763705A (en) * | 2018-05-18 | 2018-11-06 | 辽宁工程技术大学 | A kind of design method of induction type erosion control energy-absorbing support unit |
| CN112065461B (en) * | 2020-10-22 | 2021-09-28 | 中国矿业大学(北京) | Deep round tunnel anti-impact supporting method |
| CN112065461A (en) * | 2020-10-22 | 2020-12-11 | 中国矿业大学(北京) | Deep round tunnel anti-impact supporting method |
| CN113605928A (en) * | 2021-09-17 | 2021-11-05 | 辽宁工程技术大学 | Negative-rigidity roadway O-shaped shed support capable of repeatedly buffering vibration attenuation and energy absorption coupling effect |
| CN113605928B (en) * | 2021-09-17 | 2024-03-19 | 辽宁工程技术大学 | Negative-rigidity roadway O-shaped shed support capable of repeatedly buffering, damping and absorbing energy |
| CN114320394A (en) * | 2021-12-02 | 2022-04-12 | 济宁学院 | Tunnel scour protection resistance to compression supporting device based on deep dynamic load |
| CN114320394B (en) * | 2021-12-02 | 2023-11-21 | 济宁学院 | Tunnel scour protection resistance to compression strutting arrangement based on deep strong dynamic load |
| CN115059505A (en) * | 2022-07-04 | 2022-09-16 | 河南金源黄金矿业有限责任公司 | Foamed concrete combined supporting structure and method |
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| 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: 20160706 Termination date: 20170216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |