CN209584880U - A kind of energy absorbing type flexible protective device - Google Patents
A kind of energy absorbing type flexible protective device Download PDFInfo
- Publication number
- CN209584880U CN209584880U CN201920190024.6U CN201920190024U CN209584880U CN 209584880 U CN209584880 U CN 209584880U CN 201920190024 U CN201920190024 U CN 201920190024U CN 209584880 U CN209584880 U CN 209584880U
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- energy absorbing
- type flexible
- flexible protective
- protective device
- bar construction
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Abstract
This application discloses a kind of energy absorbing type flexible protective devices, comprising: is close to the steel rope net of country rock setting, the steel rope net is using hook flower net；The framework of steel reinforcement being located on the outside of the steel rope net, the framework of steel reinforcement include the support bar construction to realize stress deposit, and the support bar construction includes at least two support units being oppositely arranged；The support unit is equipped with mobile reserve bar construction, the outside of the mobile reserve bar construction is equipped at least two fixed endpoints, the inner conformation of the mobile reserve bar construction of opposed support unit, which has, is mutually directed toward and protrudes staggered deposit interconnecting piece, when the steel rope net stress deformation and when making the mobile reserve bar construction in company with deformation, connection that the interlaced deposit interconnecting piece is located remotely from each other simultaneously plays the effect born towards the load on the outside of country rock.It can threat with the reduction rock burst or Falling Rocks of high degree to personnel, vehicle and equipment.
Description
Technical field
The present disclosure relates generally to construction technology in geotechnical engineering fields, and in particular to one kind is suitable for anti-rock burst falling rocks and side slope
The energy absorbing type flexible protective device of protection.
Background technique
In mountain terrain, tunnel is built in highway and railway construction can greatly shorten running distance, while save use
Ground.But as national basis Facilities Construction is accelerated, Traffic Engineering Construction construction difficulty is higher and higher, in mountain terrain, very much
Hard rock tunnel all suffers from rockburst risk when passing through high-ground stress area, to construction worker in tunnel and mechanical equipment all shapes
At great security risk；Meanwhile as more and more highway constructions need to pass through mountain terrain, how side slope is carried out
Effectively reinforcing also becomes important research topic.
On the one hand, it in Tunnel Engineering, is mostly used in rock blasting region construction make anchor in face and cavern periphery at this stage
Bar carries out release processing, increases Blasting Excavation time interval to allow stress the modes such as sufficiently to be discharged, but above-mentioned measure is difficult
To prevent the generation of rock burst completely, construction personnel and mechanical equipment still suffer from rock burst threat.On this basis, it is thus proposed that adopt
Rock burst slungshot is intercepted with the mode for hanging protective net, ensures the safety of construction worker and mechanical equipment.On the other hand, in side slope
In engineering, " anchor pole+protective net " has become conventional preventive means.
Protective net in current Tunnel Engineering and slope project uses welded mesh, but conventional welded mesh is in face
Ideal protective action can not be played when to large ground pressure, and it is de- that solder joint is easy to happen under the percussion of rock burst slungshot
The separation disintegration for falling even mesh sheet, cannot not only play due protective action, be likely due to the separation disintegration of mesh sheet instead
To cause secondary injury to the construction worker in tunnel.
Utility model content
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of flexible bionic protectiving scheme of energy absorbing type.
In a first aspect, the embodiment of the present application provides a kind of energy absorbing type flexible protective device, comprising:
It is close to the steel rope net of country rock setting, the steel rope net is using hook flower net；
The framework of steel reinforcement being located on the outside of the steel rope net, the framework of steel reinforcement include the support steel to realize stress deposit
Muscle structure, the support bar construction include at least two support units being oppositely arranged；
The support unit is equipped with mobile reserve bar construction, and the outside of the mobile reserve bar construction is equipped at least two
A fixed endpoint, the inner conformation of the mobile reserve bar construction of opposed support unit, which has, to be mutually directed toward and protrudes staggeredly
Deposit interconnecting piece, the deposit interconnecting piece is attached by connecting component, when the steel rope net stress deformation and is made described
When mobile reserve bar construction is in company with deformation, the interlaced deposit interconnecting piece is away from each other and the same as the connecting component
The effect born towards the load on the outside of country rock is played together.
Deposit interconnecting piece described herein away from each other, refers to the movement that support unit is occurred towards respective position
Trend.
It the purpose of this utility model and solves its technical problem also following technical measures can be used to further realize.
In some embodiments of the application, the steel rope net of installation has certain slackness.
In some embodiments of the application, the connecting component is spring.
In some embodiments of the application, the spring is relaxed state in the original state of protective device.
In other embodiments of the application, the connecting component is the iron chains that original state is in relaxed state.
In some embodiments of the application, the mobile reserve bar construction is equipped with can be such that reinforcing bar stretches under stress
Long energy absorption device.
In some embodiments of the application, the support unit is configured to the framework of steel reinforcement in isosceles triangle, institute
It states energy absorption device and is located at two waist midpoints.
In some embodiments of the application, the framework of steel reinforcement further includes the profile reinforcing bar to form exterior contour,
The support bar construction is located at the inside of the profile reinforcing bar.
Further, being provided at least one side of the profile reinforcing bar can make reinforcing bar totally long under stress
Spend the energy absorption device of elongation.
In some embodiments of the application, the energy absorption device includes guiding parts, compression member and energy absorbing component, institute
Stating guiding parts is the sleeve that one end is fixedly connected with side reinforcing bar, and the other end of the sleeve is the opening equipped with blocking portion,
The compression member includes the cock body set on the sleeve inner, and one end of the cock body penetrates in sleeve with from the opening
Other side reinforcing bar is fixedly connected, and fills energy absorbing component between the cock body and the blocking portion.
Further, the energy absorbing component is polyurethane filler.
In some embodiments of the application, the fixed endpoint of the mobile reserve bar construction is fixed on anchor pole.
In some embodiments of the application, the reinforcing bar of the support unit is end to end, and the support unit is equipped with position
Fixed steel bars in outside, the mobile reserve bar construction are located at the inside of the fixed steel bars.
In some embodiments of the application, the interlaced deposit interconnecting piece is intersected with each other to be passed through.
Energy absorbing type flexible protective device provided by the embodiments of the present application, steel rope net are played similar using the form for hooking flower net
The effect that silk is caught in spider web, when falling rocks and slungshot impact hook Hua Wangshi, the braiding structure between steel cable can make to hook flower net
Stress locally deforms and is tensioned, without making mesh sheet separation disintegration.Load is transferred to reinforcing bar by deformed steel rope net
Frame, the support unit in framework of steel reinforcement deform under load action, and is played a role by laying in interconnecting piece and bear court
To the stress on the outside of country rock, steel rope net and framework of steel reinforcement collective effect can hold the energy hole that impact generates in protective net
By within the scope of, to avoid mesh sheet that failure disintegration occurs under percussion, thus the reduction rock burst of high degree or side
Threat of the slope falling rocks to personnel, vehicle and equipment.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 shows the floor map of the embodiment of the present application 1；
Fig. 2 shows the assembling schematic diagrams of the embodiment of the present application 1；
Fig. 3 shows energy absorption device schematic diagram in the embodiment of the present application 1；
Fig. 4 shows the floor map of the embodiment of the present application 2.
Wherein, 1, steel rope net, 2, framework of steel reinforcement, 21, rectangle framework of steel reinforcement, 22, triangle steel tendons skeleton, 23, connection bullet
Spring, 24, energy absorption device, 241, guiding parts, 242, compression member, 243, energy absorbing component, 3, supporting plate and nut, 4, anchor pole, 5,
Country rock (or side slope).
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical solutions in the embodiments of the present invention are clearly and completely described.Obviously, it is retouched
The embodiment stated be the utility model a part instead of all the embodiments.For ease of description, illustrated only in attached drawing with
The relevant part of utility model.
It should be noted that in the absence of conflict, the utility model for usually describing and showing in this figure is real
The component for applying example can be arranged and be designed with a variety of different configurations.It is understood that specific implementation described herein
Example is used only for explaining relevant utility model, rather than the restriction to the utility model.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, belonging to and " setting
Set ", " connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or one connection；It can
To be mechanical connection, it is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with, be can be by intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
Embodiment one
Referring to FIG. 1, it illustrates the floor map of energy absorbing type flexible protective device in the embodiment of the present application.
As shown in Figure 1, energy absorbing type flexible protective device includes steel rope net 1 and framework of steel reinforcement 2.
Wherein, steel rope net 1 is close to country rock setting, and using the structure type for hooking flower net.Wherein, the width of steel rope net 1 is answered
Slightly larger than twice anchor pole longitudinal pitch, length should be determined according to tunnel excavation profile length.Steel rope net 1 hooks flower using zinc-plated diamond shape
Net, pore size are determined according to level of protection, not preferably greater than 100mm.Steel rope net 1 install when should not be tensioned, when falling rocks with
Slungshot impact hooks Hua Wangshi, and the braiding structure between steel cable can make the stress for hooking flower net locally deform and be tensioned, this
Aspect will not make mesh sheet separation disintegration, and another aspect mesh sheet can undergo one section of buffering course in loading process, so as to improve net
The stress performance of piece.
The bar reinforcement that framework of steel reinforcement 2 preferably selects diameter to be greater than 22mm comprising 21, two triangle steels of rectangle framework of steel reinforcement
Tendons skeleton 22, connecting spring 23 and energy absorption device 24.Wherein, rectangle framework of steel reinforcement 21 is used as profile reinforcing bar, forms reinforcing bar
The exterior contour of frame, two triangle steel tendons skeletons 22, connecting spring 23 and energy absorption device 24 are collectively formed to realize stress
The support bar construction of deposit.Two angle points in triangle positioned at outside are set in advance with the angle point of rectangle framework of steel reinforcement 21
At the anchor pole exposed ends set, wherein reinforcing bar angle point bypasses anchor pole, and passes through supporting plate and nut for rectangle and triangular reinforced bar
Skeleton is tightly fixed and is fitted in country rock (or side slope) surface.Wherein, rectangle framework of steel reinforcement 21 is located at triangle steel as profile
The outside of tendons skeleton 22 is more advantageous to the stress of triangle steel tendons skeleton 22.Those skilled in the art can be according to engineer application
Anchor pole determine the concrete model and mode of supporting plate and nut.
It is fillet isosceles triangle specifically, each triangle steel tendons skeleton 22 can be used as support unit, in two waists
Equipped with energy absorption device 24, the bottom edge length positioned at outside should be one times of anchor pole circumferential direction spacing at point place, and a height of the one of isosceles triangle
Times anchor pole longitudinal pitch.The top corner portion of two triangle skeletons is mutually directed toward and is protruded staggeredly as deposit interconnecting piece, and
It is preferred that nested in chain shape, that is, intersect across setting.The connection bullet in relaxed state is connected between two apex angles
Spring.
Rectangle framework of steel reinforcement 21 is round rectangle, and two long side midpoints are equipped with energy absorption device 24, and long side length should be two
Times anchor pole longitudinal pitch, short side length should be one times of anchor pole circumferential direction spacing.The bar diameter and triangle steel of rectangle framework of steel reinforcement 21
The bar diameter of tendons skeleton 22 is identical.
Energy absorption device 24 includes guiding parts 241, compression member 242 and energy absorbing component 243.Wherein guiding parts 241 is
It is closed at one end and be connected with reinforcing bar, the other end opens the sleeve in steel thin-wall hollow cylinder of aperture, hole diameter is slightly larger than
Bar diameter, the steel that the coarse, other end is connected with reinforcing bar for one end of compression member 242.Coarse section is set to as cock body
Sleeve is interior, its diameter is slightly less than sleeve diameter.Polyurethane filling material of the filling as energy absorbing component 243 between cock body and aperture
Material.
The embodiment of the present application uses biomimetic features, and steel rope net, which is mainly used for intercepting, collapses stone and chip off-falling, and effect is similar to spider
Silk is caught in spider web；In the framework of steel reinforcement 2 that the outside (i.e. far from side slope side) of steel rope net is arranged, plays to be similar in spider web and put
The effect for penetrating silk for constraining steel rope net, while absorbing the energy of rock-fall impact generation, to a certain degree by energy absorbing component 243
Plastic deformation absorb impact generate energy, thus effectively undertake impact generate load, prevent entire protective net from impacting
Effect is lower to occur catastrophic collapse, the safety of support personnel, vehicle and equipment.
Specific mechanism are as follows: when rock burst (or Falling Rocks) occur, steel rope net deforms and is tensioned first, and load is passed
It is delivered to framework of steel reinforcement and primary load is undertaken by framework of steel reinforcement.At this point, connecting spring 23 is switched to be pressurized by the relaxed state of script,
Triangle steel tendons skeleton 22 switchs to approximate pyramid shape by the almost plane of script under the action of connecting spring 23, thus centainly
The pulling force that framework of steel reinforcement is born is reduced in degree.Under a stretching force, along guiding parts 241 axial direction occurs for compression member 242
Mobile, plastic compression deformation occurs for energy absorbing component 243 at this time, to be further reduced the energy that impact generates.It is multiple that there is suction
The device collective effect of energy function, the energy hole that impact is generated is within the scope of protective net is able to bear, to avoid
Mesh sheet occur under percussion failure disintegration, thus be reduced to a great extent rock burst (or Falling Rocks) to personnel, vehicle with
The threat of equipment.
The embodiment of the present application is suitable for rock burst rock-fall protection or Falling Rocks protection during tunnel excavation, can be significant
Protection effect is improved, the threat of falling rocks, slungshot to personnel, vehicle and equipment is reduced.
The first use process of the embodiment of the present application is as follows:
The danger stone of zone of protection, outstanding stone are cleared up first, steel rope net 1 is laid on country rock followed by construction trolley
In (or side slope) 5.Triangle steel tendons skeleton 22 and rectangle framework of steel reinforcement 21 are successively layed in steel cable using mechanical equipment later
Side (or far from side slope side) in 1 tunnel of net.After the completion of aforesaid operations, using the supporting plate and nut 3 of connection anchor pole 4 by steel cable
Net 1 and framework of steel reinforcement are fixedly clamped on country rock (or side slope) 5.So far, the first use of the utility model is completed, it later can root
Gunite concrete or multiple pneumatically placed concrete operation are carried out according to requirement of engineering, completes the construction of entire safeguard structure.
In practical projects due to needing large area to be laid with, the setting of framework of steel reinforcement can carry out centainly according to engineering is practical
It changes, such as: global arrangement can be used in triangle steel tendons skeleton 22, and checkerboard type arrangement can be used in rectangle framework of steel reinforcement 21.
Meanwhile common diamond shape can be used in the design that the embodiment of the present application uses steel rope net to separate with framework of steel reinforcement, steel rope net
Zinc-plated hook flower net, framework of steel reinforcement can direct machine-shaping, simple workshop can form standardized production, be convenient for possession
Management.
The following contents is the embodiment expanded:
It is understood that support bar construction is not limited to only including the case where two support units being oppositely arranged；It holds
The specific constructive form of support unit is also not necessarily limited to triangle steel tendons skeleton, as long as it is equipped with mobile reserve bar construction, mobile storage
The outside of standby bar construction is equipped at least two fixed endpoints, the other side of the mobile reserve bar construction of opposed support unit
It is configured with and is mutually directed toward and protrudes staggered deposit interconnecting piece, deposit interconnecting piece is attached by connecting component, works as steel rope net
Stress deformation and make mobile reserve bar construction in company with deformation when, interlaced deposit interconnecting piece away from each other, and with connect
Component plays the effect born towards the load on the outside of country rock together, and the utility model that the application can be realized is created, therefore
Within the scope of protection of this application.
For example, support unit can be trapezoidal framework of steel reinforcement or rectangle framework of steel reinforcement, at this point, convex in a certain embodiment
Multiple connecting springs can be set between staggered deposit interconnecting piece out as connecting component, when rock burst occurs, two trapezoidal
Framework of steel reinforcement or rectangle framework of steel reinforcement from the almost plane of script switch to have certain angle to two protruded on the outside of country rock
Intersecting plane, to reduce the pulling force of framework of steel reinforcement receiving.
In addition, support unit can be set to three in another specific embodiment, at this point, the outer wheels of profile reinforcing bar
Exterior feature can be hexagon, and the reinforcing bar that three support units are located at outside is three sides being spaced apart from each other in hexagon.Therefore,
" opposed support unit " is not limited only to be oppositely arranged from both sides, and can be understood as setting opposite at an angle.It is right
In the above situation, the setting opposite with 120 ° of angle of opposed support unit i.e. three support unit.At this point, deposit connects
Socket part can be to interlock the iron chains at position across three support units.
On the other hand, as long as the device that energy absorption device, which is able to achieve, extends reinforcing bar overall length under stress, exists
Within the protection scope of the application, as energy absorption device can the connection of both ends determined by the stress intensity according to reinforcing bar high intensity
Spring or hydraulic bjuffer etc..
Embodiment two (this embodiment and attached drawing 4 is the content provided in first time Disclosure of invention)
The embodiment of the present application provides another energy absorbing type flexible protective device, and the present embodiment is just for the area with embodiment two
Other feature is described, and details are not described herein for other structures or the identical part of principle.
In the embodiment of the present application, another energy absorbing type flexible protective device is provided, comprising:
It is close to the steel rope net of country rock setting, the steel rope net is using hook flower net；
The framework of steel reinforcement being located on the outside of the steel rope net, the framework of steel reinforcement include the support steel to realize stress deposit
Muscle structure, the support bar construction include at least two support units being oppositely arranged；
The support unit is equipped with mobile reserve bar construction, and the outside of the mobile reserve bar construction is equipped at least two
A fixed endpoint, the inner conformation of the mobile reserve bar construction of opposed support unit have intersected with each other pass through and to right
The reinforcing bar of side's protrusion set distance interlocks portion, when the steel rope net stress deformation and makes the mobile reserve bar construction companion
When deformation, the direction movement separate toward each other of the interlaced deposit interconnecting piece starts when moving to and contacting with each other
Stress simultaneously plays the effect born towards the load on the outside of country rock together.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that utility model range involved in the application, however it is not limited to made of the specific combination of above-mentioned technical characteristic
Technical solution, at the same should also cover do not depart from the utility model design in the case where, by above-mentioned technical characteristic or its be equal
Feature carries out any combination and other technical solutions for being formed.Such as features described above and (but being not limited to) disclosed herein have
The technical solution for thering is the technical characteristic of similar functions to be replaced mutually and being formed.
Claims (10)
1. a kind of energy absorbing type flexible protective device characterized by comprising
It is close to the steel rope net of country rock setting, the steel rope net is using hook flower net；
The framework of steel reinforcement being located on the outside of the steel rope net, the framework of steel reinforcement include the support reinforcing bar knot to realize stress deposit
Structure, the support bar construction include at least two support units being oppositely arranged；
The support unit is equipped with mobile reserve bar construction, and it is solid that the outside of the mobile reserve bar construction is equipped at least two
Fixed end point, the inner conformation of the mobile reserve bar construction of opposed support unit, which has, is mutually directed toward and protrudes staggered storage
Standby interconnecting piece, when the steel rope net stress deformation and when making the mobile reserve bar construction in company with deformation, interlaced institute
It states the connection that deposit interconnecting piece is located remotely from each other and plays the effect born towards the load on the outside of country rock.
2. a kind of energy absorbing type flexible protective device according to claim 1, which is characterized in that the deposit interconnecting piece passes through
Connecting component links together, and the connecting component is that original state is in the spring of relaxed state or original state is in relaxed state
Iron chains.
3. a kind of energy absorbing type flexible protective device according to claim 1, which is characterized in that the mobile reserve reinforcing bar knot
Structure is equipped with the energy absorption device that under stress reinforcing bar overall length can extend.
4. a kind of energy absorbing type flexible protective device according to claim 3, which is characterized in that the support unit is constructed
To be provided with the energy absorption device in the midpoint of the framework of steel reinforcement of isosceles triangle, two waist reinforcing bars.
5. a kind of energy absorbing type flexible protective device according to claim 1, which is characterized in that the framework of steel reinforcement further includes
To form the profile reinforcing bar of exterior contour, the support bar construction is located at the inside of the profile reinforcing bar.
6. a kind of energy absorbing type flexible protective device according to claim 5, which is characterized in that the profile reinforcing bar is at least
The energy absorption device that under stress reinforcing bar overall length can extend is provided on one side.
7. a kind of energy absorbing type flexible protective device according to claim 3,4 or 6, which is characterized in that the energy absorption device
Including guiding parts, compression member and energy absorbing component, the guiding parts is the sleeve that one end is fixedly connected with side reinforcing bar, institute
The other end for stating sleeve is the opening equipped with blocking portion, and the compression member includes the cock body set on the sleeve inner, described
One end of cock body is fixedly connected with from the other side reinforcing bar penetrated in sleeve that is open, between the cock body and the blocking portion
Fill energy absorbing component.
8. a kind of energy absorbing type flexible protective device according to claim 7, which is characterized in that the energy absorbing component is poly- ammonia
Ester filler.
9. a kind of energy absorbing type flexible protective device according to claim 1, which is characterized in that in use, the mobile storage
The fixed endpoint of standby bar construction is fixedly connected with anchor pole.
10. a kind of energy absorbing type flexible protective device according to claim 1, which is characterized in that the interlaced storage
It is passed through for interconnecting piece is intersected with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920190024.6U CN209584880U (en) | 2019-02-11 | 2019-02-11 | A kind of energy absorbing type flexible protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920190024.6U CN209584880U (en) | 2019-02-11 | 2019-02-11 | A kind of energy absorbing type flexible protective device |
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| Publication Number | Publication Date |
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| CN209584880U true CN209584880U (en) | 2019-11-05 |
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| CN201920190024.6U Expired - Fee Related CN209584880U (en) | 2019-02-11 | 2019-02-11 | A kind of energy absorbing type flexible protective device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695207A (en) * | 2019-02-11 | 2019-04-30 | 山东滨莱高速公路有限公司 | A kind of energy absorbing type flexible protective device |
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2019
- 2019-02-11 CN CN201920190024.6U patent/CN209584880U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695207A (en) * | 2019-02-11 | 2019-04-30 | 山东滨莱高速公路有限公司 | A kind of energy absorbing type flexible protective device |
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Granted publication date: 20191105 Termination date: 20220211 |