CN210031565U - Shed roof component and shed tunnel structure for preventing secondary impact of rockfall - Google Patents
Shed roof component and shed tunnel structure for preventing secondary impact of rockfall Download PDFInfo
- Publication number
- CN210031565U CN210031565U CN201920184465.5U CN201920184465U CN210031565U CN 210031565 U CN210031565 U CN 210031565U CN 201920184465 U CN201920184465 U CN 201920184465U CN 210031565 U CN210031565 U CN 210031565U
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- Prior art keywords
- shed
- shell
- arch shell
- falling rocks
- rockfall
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- 239000011435 rock Substances 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 14
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 10
- 230000002265 prevention Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000011208 reinforced composite material Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000004575 stone Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000003733 fiber-reinforced composite Substances 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model provides a canopy top component and shed tunnel structure that prevention rockfall secondary was strikeed has solved current shed tunnel structure that prevents rockfall and collapse the impact and is the rigid structure, causes the secondary easily to strike, and changes inconveniently, greatly reduced the problem of the efficiency of road speedily carrying out rescue work. The utility model discloses an arch shell with fill in high-elastic filler in the arch shell, the material of arch shell is FRP, the material of high-elastic filler is polyurethane rubber, the both ends of arch shell adopt the spill draw-in groove with the connection can be dismantled in the shed hole. The utility model has the advantages of high-elastic arch shell can bounce open the impact of falling rocks, effectively prevents that the falling rocks secondary from strikeing and easy dismounting, salvagees efficiently.
Description
Technical Field
The utility model relates to a road traffic safety protection facility technical field, concretely relates to canopy top component and shed tunnel structure that prevention rockfall secondary is strikeed.
Background
In recent years, after geological disasters such as violent earthquakes and high-level collapse occur in mountainous areas for many times, the rush-to-walk and the traffic-securing of mountainous area highways particularly under complex terrain conditions become life line projects. How to build a special protection facility quickly when a geological disaster occurs, providing a space for vehicle traffic safety is the focus of attention and exploration of the current traffic department and emergency rescue units, and practice proves that the construction of temporary steel hangings becomes a priority choice.
However, the top of the traditional steel shed tunnel mostly adopts a structural form of an upright post, a cross steel beam and a slope beam to form a support frame for preventing falling rocks from collapsing. This structure has the following problems: firstly, a 'rigid-gram' mode is adopted, no buffer component is used for absorbing energy, so that the anti-collision performance is poor, secondly, the structure has high manufacturing cost, can not be directly replaced after being damaged, and seriously influences the 'life line' engineering construction after a disaster occurs; thirdly, the most important point is that the structural form of the cross beam inclined strut is stressed unreasonably, secondary impact, tertiary impact or even repeated impact is easy to occur after falling rocks impact the protection plate, and if the falling rocks impact weak positions (midspan, support seat and the like) of the structure, great damage is caused.
Therefore, the design can be convenient for replace installation, and the protective component or shed tunnel structure that can effectively prevent the falling rocks from impacting once more has important significance for road emergency rescue, dredging and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the conventional shed tunnel structure for preventing falling rocks from collapsing and impacting is a rigid structure, secondary impact is easily caused, replacement is inconvenient, and the efficiency of road emergency rescue is greatly reduced.
The utility model provides a solve above-mentioned technical problem's a canopy top component and shed tunnel structure of prevention rockfall secondary impact.
The utility model discloses a following technical scheme realizes:
a shed roof component for preventing secondary impact of falling rocks comprises an arched shell and high-elasticity filler filled in the arched shell.
The design principle of the utility model is that: make the shell into the arch, when the arch shell receives the rockfall and assaults, can evenly distribute the impact force on the domes, and inside filled high-elastic filler, it makes the arch shell produce inward deformation to assault at the rockfall, high-elastic filler can produce the power of bounce-back to the rockfall, because the shell is made the arch, the radial direction of arch shell can be followed to bounce-back, like this, the rockfall will be flicked off, avoid contacting the canopy hole once more and form "secondary collision", prevent to destroy because of striking the structure weak point.
The utility model discloses preferred shed roof component that a prevention rockfall secondary was strikeed, the both ends of arch shell are passed through coupling mechanism and can be dismantled with the top in shed hole and be connected, and this kind of component of being connected can be dismantled with the shed hole, can the finished product prefabrication, realize quick replacement, build robbing of steel shed hole fast after taking place for geological disasters such as earthquake, high-order collapse, protect to lead to construction etc. very much.
The utility model discloses preferred canopy top component that prevention rockfall secondary was strikeed, coupling mechanism includes the bottom plate, sets up perpendicularly baffle on the bottom plate is in with the perpendicular setting on the baffle with the parallel roof of bottom plate, synthetic one side open-ended spill draw-in groove is enclosed to bottom plate, baffle and roof, the both ends card of arch shell is gone into in the spill draw-in groove.
Further, the both ends of arch shell set up with the connecting plate that the spill draw-in groove matches, the connecting plate card is gone into the spill draw-in groove, during concrete installation, with the tip of connecting plate with the baffle contacts, just the roof with the last casing contact of arch shell can make the arch shell can receive the multiple restraint of spill draw-in groove like this, receive the falling rocks impact and when taking place horizontal deformation, can receive deformation hindrance, the structure is more firm.
The utility model discloses preferred a canopy top component that prevention rockfall secondary was strikeed, set up the through-hole on the bottom plate, the connecting piece passes through the through-hole and realizes that the dismantlement at spill draw-in groove and shed tunnel top is connected.
The utility model discloses canopy top component of preferred prevention rockfall secondary impact, the material of arch shell is fiber reinforced composite, is called FRP for short, and this material tensile strength is higher than the reinforcing bar, does not produce plastic deformation basically before reaching tensile strength, can regard as top protective structure used repeatedly.
Because FRP's shear strength is not high, so set up coupling mechanism into concave draw-in groove structure to the connecting plate card of arch shell is gone into the concave draw-in groove, can avoid adopting connection methods such as bolt to produce shearing force and damage the arch shell.
The utility model discloses preferred a canopy component of prevention rockfall secondary impact, high-elastic filler is polyurethane rubber, and polyurethane rubber has stronger elasticity, and when the arch shell received the rockfall and assaults, polyurethane rubber can produce the bounce-back to the rockfall, plays fine bounce-back effect to the rockfall together with FRP, effectively prevents the secondary impact of rockfall to the shed hole.
The utility model provides a shed tunnel structure, includes interval distribution's stand and cross-over connection crossbeam on the stand, can dismantle on the crossbeam and connect the shed roof component that prevents the secondary impact of falling rocks, this component can dismantle the connection on the crossbeam of shed tunnel, and easy dismounting can also prefabricate in advance, is applicable to robbing for expert, the construction of protecting expert of building steel shed tunnel after geological disasters such as earthquake, high-order collapse take place.
The utility model discloses following beneficial effect has:
1. the utility model adopts the arched shell made of fiber reinforced composite material and polyurethane rubber filler, when falling rocks impact, the arched structure can share the impact force, and the falling rocks can be quickly flicked due to high elasticity, thereby effectively preventing the secondary impact of the falling rocks on the shed tunnel;
2. the utility model discloses set up the spill draw-in groove and can dismantle with the shed tunnel top and be connected to go into the spill draw-in groove with the both ends card of arch shell, can avoid the arch shell to receive the shearing force and split in the junction like this, the component can the finished product prefabrication moreover, arrives the field assembly again, and is very convenient and swift.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic view of the shed tunnel structure of the present invention.
Fig. 2 is a schematic structural diagram of the components of the present invention.
Fig. 3 is a schematic structural diagram of the concave slot of the present invention.
Reference numbers and corresponding part names in the drawings:
1-arched shell, 2-high elastic filler, 3-connecting plate, 4-concave clamping groove, 40-bottom plate, 41-baffle, 42-top plate, 5-bolt, 6-beam, 7-column, 8-base, 9-rockfall and 10-collapse slope.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
As shown in fig. 1 to 3, a shed roof member for preventing secondary impact of falling rocks comprises an arched shell 1 and a high-elastic filler 2 filled in the arched shell 1.
The arched shell 1 is made of a fiber reinforced composite material, FRP for short, the tensile strength of the material is higher than that of a steel bar, plastic deformation is basically avoided before the tensile strength is reached, and the arched shell can be used as a top protection structure for repeated use.
High-elastic filler 2 is polyurethane rubber, and polyurethane rubber has stronger elasticity, and when arch shell 1 received falling stone 9 and assaulted, polyurethane rubber produced deformation and recovers the production elasticity again, played fine bounce-back effect to falling stone 9 with FRP together, effectively prevented falling stone 9 and assaulted the secondary in shed hole.
The thickness of the arched shell 1 is 10mm, the arch height is 110cm, and the horizontal distance between the bottom of the upper shell and the bottom of the lower shell is 55 cm.
Make the shell into the arch, when arch shell 1 receives falling stone 9 and assaults, can evenly distribute the impact force on the domes, and inside filled high-elastic filler 2 polyurethane rubber, when falling stone 9 and assaulting to make ERP arch shell 1 produce inward deformation, high-elastic filler 2 can produce the power of bounce-back to falling stone 9, because the shell is made the arch, the radial direction of arch shell 1 can be followed to bounce-back, and like this, falling stone 9 will be bounced off, avoid contacting the canopy hole once more and form "secondary collision", avoided destroying because of striking the structure weak point.
The both ends of arch shell 1 are passed through coupling mechanism and can be dismantled with the top of shed tunnel and be connected, and this kind of component of dismantling the connection with the shed tunnel can be finished product prefabrication, realizes quick replacement, and the rush-to-pass of building steel shed tunnel after geological disasters such as earthquake, high-order collapse take place, guarantor construction etc. fast is particularly suitable for.
Coupling mechanism includes bottom plate 40, sets up perpendicularly baffle 41 on the bottom plate 40 and set up perpendicularly on the baffle 41 with the roof 42 that bottom plate 40 is parallel, bottom plate 40, baffle 41 and roof 42 enclose synthetic one side open-ended concave draw-in groove 4, the both ends card of arch shell 1 is gone into in the concave draw-in groove 4, the thickness of bottom plate 40, baffle 41 and roof 42 is 16mm, concave draw-in groove 4 is integrated into one piece.
Because the shear strength of the FRP is not high, the connecting mechanism is set to be of a concave clamping groove 4 structure, the connecting plate 3 of the arched shell 1 is clamped into the concave clamping groove 4, and the problem that the arched shell 1 is damaged due to the fact that the shearing force is generated by adopting connecting modes such as bolts 5 and the like can be avoided.
The both ends of arch shell 1 set up with connecting plate 3 that spill draw-in groove 4 matches, connecting plate 3 card goes into spill draw-in groove 4, during concrete installation, with connecting plate 3 the tip with baffle 41 contacts, just roof 42 with the last casing contact of arch shell 1 can make arch shell 1 can receive the multiple restraint of spill draw-in groove 4 like this, when receiving falling the stone 9 and assaulting and taking place horizontal deformation, can receive deformation and hinder, and the structure is more firm.
The width of the connecting plate 3 is 19 cm.
Set up the through-hole on the bottom plate 40, set up the chimb on the crossbeam 6 of shed tunnel, through-hole two has been seted up on the chimb, and bolt 5 passes through-hole and through-hole two and adopts the nut fixed to realize dismantling of spill draw-in groove 4 and shed tunnel top and be connected.
The use method of the member for preventing secondary impact of falling rocks 9 comprises the following steps:
prefabricating a shed roof component in advance and transporting the shed roof component to an installation site;
assembly in the field: clamping a connecting plate 3 of a shed roof member into the concave clamping groove 4 to fix the arched shell 1 and the concave clamping groove 4;
field installation: and lifting the assembled shed roof component to the cross beam 6 of the shed tunnel to enable the through holes to be aligned with the second through holes on the cross beam 6, sequentially penetrating the through holes and the second through holes by using bolts 5, and screwing and fixing by using nuts.
Example 2
As shown in figure 1, the shed tunnel structure comprises upright posts 7 which are distributed at intervals and cross beams 6 which are bridged on the upright posts 7, shed roof components for preventing secondary impact of falling rocks 9 can be detachably connected on the cross beams 6, the components can be detachably connected on the cross beams 6 of the shed tunnel, are convenient to disassemble and assemble, can be prefabricated in advance, and are suitable for rush-to-reach and traffic-protection construction and the like for quickly building the steel shed tunnel after geological disasters such as earthquake, high-level collapse and the like occur.
The shed tunnel further comprises a base 8, wherein the base 8, the stand columns 7 and the cross beams 6 are detachably connected and reinforced by buckle plates and a plurality of pins.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a canopy top component of prevention rockfall secondary impact, its characterized in that, including arch shell (1) with fill in high-elastic filler (2) in arch shell (1), the both ends of arch shell (1) are passed through coupling mechanism and can be dismantled with shed hole top and be connected, coupling mechanism includes bottom plate (40), sets up perpendicularly baffle (41) on bottom plate (40) are in with the perpendicular setting baffle (41) on (41) with roof (42) that bottom plate (40) are parallel, synthetic one side open-ended spill draw-in groove (4) is enclosed in bottom plate (40), baffle (41) and roof (42), the both ends card of arch shell (1) is gone into in spill draw-in groove (4).
2. A shed roof component for preventing secondary impact of falling rocks according to claim 1, characterized in that the two ends of the arched shell (1) are provided with connecting plates (3) which can be clamped into the concave clamping grooves (4).
3. The shed roof component for preventing secondary impact of falling rocks as defined in claim 1 or 2, wherein the bottom plate (40) is provided with a through hole, and the connecting piece realizes the detachable connection of the concave clamping groove (4) and the shed tunnel top through the through hole.
4. A shed roof element for preventing secondary impact from falling rocks according to claim 1 or 2, characterised in that the material of the arched shell (1) is a fibre-reinforced composite material.
5. A shed roof element for preventing secondary impacts from falling rocks according to claim 1 or 2, characterised in that the elastomeric filler (2) is a polyurethane rubber.
6. A shed tunnel structure, characterized in that, comprises upright posts (7) which are distributed at intervals and a beam (6) which is bridged on the upright posts (7), the beam (6) is detachably connected with a shed roof component which prevents the secondary impact of falling rocks according to any one of the claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920184465.5U CN210031565U (en) | 2019-01-31 | 2019-01-31 | Shed roof component and shed tunnel structure for preventing secondary impact of rockfall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920184465.5U CN210031565U (en) | 2019-01-31 | 2019-01-31 | Shed roof component and shed tunnel structure for preventing secondary impact of rockfall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210031565U true CN210031565U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920184465.5U Expired - Fee Related CN210031565U (en) | 2019-01-31 | 2019-01-31 | Shed roof component and shed tunnel structure for preventing secondary impact of rockfall |
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| Country | Link |
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| CN (1) | CN210031565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270619A (en) * | 2020-02-27 | 2020-06-12 | 中铁第一勘察设计院集团有限公司 | Railway bridge steel-UHPC combined rockfall protection shed tunnel and construction method thereof |
| CN115012682A (en) * | 2022-06-20 | 2022-09-06 | 中国科学院、水利部成都山地灾害与环境研究所 | Collapse rockfall protective net structure with toughness energy dissipation function |
-
2019
- 2019-01-31 CN CN201920184465.5U patent/CN210031565U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270619A (en) * | 2020-02-27 | 2020-06-12 | 中铁第一勘察设计院集团有限公司 | Railway bridge steel-UHPC combined rockfall protection shed tunnel and construction method thereof |
| CN115012682A (en) * | 2022-06-20 | 2022-09-06 | 中国科学院、水利部成都山地灾害与环境研究所 | Collapse rockfall protective net structure with toughness energy dissipation function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20210131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |