CN103410162B - Flexible blocking backstop - Google Patents
Flexible blocking backstop Download PDFInfo
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- CN103410162B CN103410162B CN201310382751.XA CN201310382751A CN103410162B CN 103410162 B CN103410162 B CN 103410162B CN 201310382751 A CN201310382751 A CN 201310382751A CN 103410162 B CN103410162 B CN 103410162B
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Abstract
The invention discloses a kind of flexible blocking backstop, relate to a kind of protective structure, a kind of flexible blocking backstop can optimized load and distribute, reduce concentration of local load is provided.Flexible blocking backstop comprises the supporting rope and metal flexible net that at least between two pieces support column and support column, horizontal spreading is arranged, supporting rope is connected with metal flexible net, at least one end of support column length direction is connected with supporting mass free to rotate, supporting mass tensioning supporting rope; Further, flexible blocking backstop can comprise the Joining clasp of the variable or easy fracture of shape, metal flexible net comprises mesh, and at least one mesh being positioned at metal flexible net top row or end row is connected to form the region with pooling feature by Joining clasp and supporting rope, this region is buffer area.The present invention may be used for moving object of blocking, and especially tumbles stone, the Rock And Soil of slip, mud-rock flow, snowslide and blasting flyrock.
Description
Technical field
The present invention relates to a kind of protective structure, i.e. a kind of flexible blocking backstop especially tumbling stone, the Rock And Soil of slip, mud-rock flow, snowslide and blasting flyrock for moving object of blocking.
Background technology
The net of blocking be made up of various metal flexible net, supporting rope, support column and pedestal thereof, stay cord and the energy dissipator etc. with overload protective function; because of it, there is good impact resistance and the advantage such as construction and installation are efficient and convenient; be widely used in the construction of the engineerings such as highway, railway, power station or run protection; tumble stone, the Rock And Soil of slip, mud-rock flow, snowslide and blasting flyrock etc. in order to side slope of blocking, and achieve good result.
At present, all kinds ofly block in net known, all directly be bearing in support column top along the supporting rope of horizontal spreading between each support column to realize being connected with a certain fixed position of bottom or pedestal, when a certain position of certain two adjacent supports intercolumniation of net of blocking is impacted by moving object, the supporting rope of these two adjacent supports intercolumniations is by stand under load tensioning and deform and displacement, and this stand under load response has the trend outwards transmitted, but, owing to there is larger force of sliding friction between the supporting rope of tensioning and the bearing contact of support column or pedestal, it outwards transmits and is difficult to smooth and easy realization, the net Local Loads that causes blocking is excessive, reduce its ability of blocking, the existence of this problem makes known web frame of blocking have necessity of improvement.In addition, block in net at such, all lower edges mesh of metal flexible net are all directly to pass these mesh, sew up rope, the same way such as shackle and supporting rope are directly connected, these edge mesh only can the support ran between two adjacent support columns or pedestal be moved, thus when net of blocking is subject to moving object impact, near support column top and bottom or pedestal, the movement of flexible net is restricted and forms very high concentration of local load, the entirety reducing net of blocking is blocked ability, as a kind of scheme addressed this problem, the patent No. of the applicant is ZL201220415837.9, name is called the utility model patent of " net of blocking ", disclose one to block net, it comprises the supporting rope and metal flexible net that launch layout between at least two support columns and support column, also comprise at least one snub rope, snub rope launches along supporting rope and at least strides across a support column, at the bottom of the part or all of top of the part metal flexible net adjacent with snub rope, row edge mesh is slidably connected with snub rope, the mesh of this connection can cross over support column or pedestal slides thus the concentration of local load reduced in this region, and proved that this scheme is effective in actual applications, but this solution by additional cushion rope is except also having the prospect of simplification and improvement, it is not the unique scheme solving Related Technical Issues.
Summary of the invention
Can not the larger deficiency of concentration of local load caused by smooth and easy posting by supporting rope when existing net of blocking impacts by moving object in order to overcome, there is provided a kind of new technical scheme in order to reduce the concentration of local load near support column top and bottom or pedestal in flexible net, technical problem to be solved by this invention is to provide a kind of flexible blocking backstop can optimized load and distribute, reduce concentration of local load.
In order to solve the problem, the technical scheme adopted is: flexible blocking backstop comprises the supporting rope and metal flexible net that at least between two pieces support column and support column, horizontal spreading is arranged, supporting rope is connected with metal flexible net, at least one end of support column length direction is connected with supporting mass free to rotate, supporting mass tensioning supporting rope.
Further: flexible blocking backstop comprises the Joining clasp of the variable or easy fracture of shape, metal flexible net comprises mesh, at least one mesh being positioned at metal flexible net top row or end row is connected to form the region with pooling feature by Joining clasp and supporting rope, this region is buffer area.
Particularly: supporting mass comprises fixed body and rotor, and rotor is provided with locating slot, and fixed body is connected with support column, and supporting rope is positioned in locating slot.
Further: the mesh in buffer area is connected with supporting rope fully or partially through Joining clasp; When the mesh-portion in buffer area is connected with supporting rope by Joining clasp, there is not any direct connection relational in all the other mesh and supporting rope.
Preferred as one: Joining clasp is helical spring.
Preferred as one: Joining clasp comprises by the bending ring bodies of metal wire rod.
Particularly: Joining clasp comprise fastener and be bent to form by metal wire rod body of clasp, crosspoint and free segment, metal wire rod two parts connect according to predetermined load at crosspoint place by fastener, and free segment can move when extraneous load exceedes predetermined load in fastener.
Further: the end of free segment is connected with skid-proof device.
Preferred as one: metal wire rod bending two ends forms hasp, the mutual hook of two pieces hasp connects.
The invention has the beneficial effects as follows: the contact point of supporting rope and rotatable support is with the less roll mode generation relative movement of frictional resistance, the supporting rope of the two support column both sides adjacent with moving object impact position or its section of extending laterally is made to be able to swimmingly to impact position displacement, thus transfer the wider of flexible blocking backstop and share and transmit load, reduction flexible blocking backstop is hit the Local Loads intensity of area peripheral edge and the load that is finally delivered on all kinds of anchor pole.
Joining clasp is under load action or when load meets or exceeds predetermined value, can there is obvious elongation strain, free segment displacement discharges, hasp is threaded off, be separated, the modes such as fracture make all sizes of its ring obviously increase or remove annular enclosed, thus weaken or remove the connection constraints of row edge mesh at the bottom of the top to coupled metal flexible net, make to have the Joining clasp of preceding feature cushion connection region there is obvious load pooling feature, namely defining by two adjacent support columns and the supporting rope of horizontal spreading and metal flexible net are formed four folding corner regions being easy to produce Load concentration being approximately the unit of blocking of rectangle the buffer area avoiding this region internal loading concentrations therebetween.
In sum, load distribution in flexible blocking backstop of the present invention obtains optimization, sharing of impact load is more rational, concentration of local load obtains reduction, thus the peak load reduced in flexible blocking backstop in each component, and then improve the overall impact resistance of net of blocking, reduce the requirement of the anchored force to all kinds of anchor pole, and decrease construction and installation workload and later stage operation maintenance workload.
Accompanying drawing illustrates:
Fig. 1 is flexible blocking backstop structural representation;
Fig. 2 is double-deck flexible blocking backstop structural representation;
Fig. 3 is a kind of structure chart of Joining clasp;
Fig. 4 is the another kind of structure chart of Joining clasp;
Fig. 5 is a kind of structure chart of supporting mass;
Be labeled as in figure: metal flexible net 1, support column 2, supporting rope 3, buffer area 4, Joining clasp 5, mesh 6, shackle 7, supporting mass 8, pedestal 9, upper stay cord 10, supporting rope extension 11, layback rope 12, limit hang down rope 13, energy dissipator 14, metal wire rod 15, skid-proof device 16, free segment 17, crosspoint 18, fastener 19, body of clasp 20, hasp 21, rotor 22, fixed body 23, locating slot 24.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
As shown in Figure 1 and Figure 2, flexible blocking backstop of the present invention can be the known net of blocking especially tumbling stone, the Rock And Soil of slip, mud-rock flow, snowslide and blasting flyrock for various moving object of blocking, it comprises the supporting rope 3 and metal flexible net 1 that at least between two pieces support column 2 and support column 2, horizontal spreading is arranged, supporting rope 3 is connected with metal flexible net 1, at least one end of support column 2 length direction is connected with supporting mass 8 free to rotate, supporting mass 8 tensioning supporting rope 3.Except above-mentioned each component, flexible blocking backstop of the present invention also can comprise stay cord 10, other ingredients such as rope 13 and energy dissipator 14 are hung down on supporting rope extension 11, layback rope 12, limit and flexible blocking backstop is anchored in all kinds of anchor poles on ground.Support column 2 can comprise support column main body and base 9, and base 9 is fixedly installed, and support column main body is connected with base 9, and supporting mass 8 can be connected with support column body end and/or base 9.Adopt in a kind of embodiment shown in Fig. 1 of flexible blocking backstop in the another embodiment shown in the metal flexible net 1, Fig. 2 of individual layer and adopt double-deck metal flexible net 1.
The contact point of supporting rope 3 and supporting mass 8 is with the less roll mode generation relative movement of frictional resistance, the supporting rope 3 of two support column 2 both sides adjacent with moving object impact position or supporting rope extension 11 is made to be able to swimmingly to impact position displacement, thus transfer the wider of flexible blocking backstop and share and transmit load, reduction flexible blocking backstop is hit the Local Loads intensity of area peripheral edge and the load that is finally delivered on all kinds of anchor pole.
Further: flexible blocking backstop comprises the Joining clasp 5 of the variable or easy fracture of shape, metal flexible net 1 comprises mesh 6, at least one mesh 6 being positioned at metal flexible net 1 top row or end row is connected to form the region with pooling feature by Joining clasp 5 and supporting rope 3, and this region is buffer area 4.And row edge mesh 6 shackle 7 at the bottom of the top of metal flexible net 1 beyond buffer area 4, sew up rope or directly wear the usual manners such as extension and be slidably connected with adjacent supports rope 3.The mesh 6 at the row edge, top beyond the buffer area 4 of the metal flexible net 1 shown in Fig. 1 with Fig. 2 is all connected with upper supporting rope 3 with shackle 7, and the mesh 6 at row edge, the end then adopts the connected mode be directly hung on lower support rope 3.In the backstop of flexible blocking shown in Fig. 2 embodiment adopt the shape approximation rhombus playing the metal flexible net 1(mesh 6 of time carrying effect in double-level-metal flexible net 1) buffer area 4 beyond top at the bottom of the mesh 6 at row edge all adopt the connected mode be directly hung on another group supporting rope 3.
Joining clasp 5 is under load action or when load meets or exceeds predetermined value, can there is obvious elongation strain, free segment 17 displacement discharges, hasp 21 is threaded off, be separated, the modes such as fracture make all sizes of its ring obviously increase or remove annular enclosed, thus weaken or remove the connection constraints of mesh 6 at row edge at the bottom of the top to coupled metal flexible net 1, make to have the Joining clasp 5 of preceding feature cushion the region connected there is obvious load pooling feature, namely defining by two adjacent support columns 2 and the supporting rope 3 of horizontal spreading and metal flexible net 1 are formed four folding corner regions being easy to produce Load concentration being approximately the unit of blocking of rectangle the buffer area 4 avoiding this region internal loading concentrations therebetween.
Concrete in actual applications, supporting mass 8 comprises fixed body 23 and rotor 22, rotor 22 is provided with locating slot 24, and fixed body 23 is connected with support column 2, and supporting rope 3 is positioned in locating slot 24.Supporting mass 8 can be pulley commercially, or fixed body 23 and rotor 22 are all the part manufactured voluntarily, and fixed body 23 and rotor 22 can be slidably matched also to arrange bearing between.The effect of locating slot 24 prevents supporting rope 3 from skidding off.
According to the structure design of flexible blocking backstop especially its adopt the type of metal flexible net 1 and protective capacities thereof to require difference, the mesh 6 in buffer area 4 is connected with supporting rope 3 fully or partially through Joining clasp 5; When mesh 6 part in buffer area 4 is connected with supporting rope 3, there is not any direct connection relational with supporting rope 3 in all the other mesh 6.Particularly, in the embodiment shown in Fig. 1 and Fig. 2, each buffer area 4 being mutually socketed the metal flexible net 1 formed by single ring-type mesh 6 contains the mesh 6 at the row edge, the end, three tops of contiguous support column 2, and is all connected on its supporting rope 3 be close to by Joining clasp 5 buffering; Each buffer area 4 that mesh 6 is approximately the metal flexible net 1 of rhombus contains row edge, the end, five tops mesh 6 of contiguous support column 2, and one from next-door neighbour's support column 2 starts to be connected on supporting rope 3 of its vicinity by Joining clasp 5 buffering at interval of one.
According to aforementioned, the present invention can be expressed as follows the range of definition of buffer area 4: in row edge mesh 6 at the bottom of the top of the metal flexible net 1 in the scope that the supporting rope 3 of adjacent two support columns 2 horizontal spreadings is formed, and to be connected and without row edge mesh 6 at the bottom of all tops of any direct connection and the region that forms with all or part of Joining clasp 5 be connected in these mesh 6 with adopting between supporting rope 3 to be cushioned by snap ring 5.In this definition, the mesh 6 at row edge at the bottom of the top of described metal flexible net 1 is defined as row's mesh of actual participation connection instead of simple geometric definition, if longitudinal development size of the metal flexible net 1 namely adopted obviously is greater than the distance between the upper and lower supporting rope 3 in region, it may be more than needed and do not participate in any connection with practical significance for arranging mesh 6 other row's mesh 6 that even inner side is contiguous at the bottom of top on geometric meaning, and the mesh 6 now participating in relevant connection directly is defined as the mesh 6 at row edge at the bottom of top of the present invention according to its position.
According to the function needs of the present invention to buffer area 4, described Joining clasp 5 is under load action or when load meets or exceeds predetermined value, can there is obvious elongation strain, the mode such as free segment 17 displacement release, hasp 21 are threaded off, be separated, fracture obviously increases to make its ring week size or removes annular enclosed, thus weaken or remove the connection constraints of row edge mesh 6 at the bottom of the top to coupled metal flexible net 1, enable each mesh 6 unit in buffer area 4 to discharge the mode of more Large travel range to reduce its interior load intensity.
According to the functional requirement of above-mentioned Joining clasp 5, Joining clasp 5 can be helical spring, and helical spring can obviously extend.
Joining clasp 5 also can comprise by the bending ring bodies of metal wire rod 15.Concrete Joining clasp 5 can be scheme one as shown in Figure 3, namely Joining clasp 5 comprise fastener 19 and be bent to form by metal wire rod 15 body of clasp 20, crosspoint 18 and free segment 17, metal wire rod 15 two parts connect according to predetermined load at crosspoint 18 place by fastener 19, and free segment 17 can move when extraneous load exceedes predetermined load in fastener 19.So, when Joining clasp 5 load meets or exceeds predetermined value, body of clasp 20 first geometry change i.e. its major axis dimension change weakens its effect of contraction greatly; When increasing further by load, free segment 17 can skid off fastener 19 certain length obviously increase to discharge displacement Joining clasp 5 ring week size, even free segment 17 can skid off completely fastener 19 and remove connect the annular enclosed state of snap ring 5.
Further, for making described Joining clasp 5 remain annular enclosed in normal operation and avoiding region, buffer area 4 to form the excessive breach without any body of blocking, the end of described free segment 17 is connected with the skid-proof device 16 preventing it from skidding off from fastener 19.
Joining clasp 5 is also can scheme two as shown in Figure 4, and metal wire rod 15 bending two ends forms hasp 21, and two pieces hasp 21 mutually hook connects.So, when Joining clasp 5 load meets or exceeds predetermined value, become large except its ring Zhou Shouxian with geometry deformation i.e. its major axis dimension and weaken except its effect of contraction, its hasp 21 with dropout mode or its ring week certain point upper remove its ring week with fracture mode and close.
Above-mentioned metal wire rod 15 can be steel wire, wire rope, steel strand or wherein appoint several combinations.In actual applications, when the protective capacities of flexible blocking backstop requires higher, preferred such scheme one, particularly: described tinsel 15 adopts wire rope and coils a circle, fastener 19 adopts rope clamp, and the end winding support of free segment 17 has wire rope aluminium alloys to suppress the skid-proof device 16 of joint; When flexible blocking backstop protective capacities require lower time, preferred such scheme two, particularly: described metal wire rod 15 adopts intensity be not less than the steel wire of 1770MPa and coil a circle, two ends be bent into can mutually hook company hasp 21.
Based on technology contents described in the invention improve different existing known block net time, it specifically uses and mounting means can be different, the specific implementation form of especially described supporting mass 8 and specification thereof and magnitude setting, Joining clasp 5 material therefor form, the strength of materials, specification and all concrete shapes of ring thereof, specification, the coiling number of turns, free segment 17 length and end skid-proof device 16 form thereof, fixing or the connected mode in crosspoint 18 and intensity thereof, the quantity that mesh 6 quantity at row edge at the bottom of the top of the metal flexible net 1 comprised in buffer area 4 and participation thereof connect, do not participate in the quantity that connects and spaced arrangement etc.In addition, this difference also can be embodied in different support column 2 two ends place setting in flexible blocking backstop or not arrange supporting mass 8 and buffer area 4.Further, this difference also can be the similar or dissimilar metals flexible net 1 with adopting individual layer, double-deck even multilayer in flexible blocking backstop, adopt supporting rope 3 to be single, double joints even many of identical or different specification, and how different there is between these metal flexible net 1 and supporting ropes 3 corresponding annexation.Above difference and based on the existing known net correlation technique and the difference introduced all should not be considered to the essential distinction with flexible blocking backstop of the present invention of blocking.
Claims (8)
1. flexible blocking backstop, comprise supporting rope (3) and metal flexible net (1) that at least between two pieces support column (2) and support column (2), horizontal spreading is arranged, supporting rope (3) is connected with metal flexible net (1), it is characterized in that: the Joining clasp (5) comprising the variable or easy fracture of shape, at least one end of support column (2) length direction is connected with supporting mass (8) free to rotate, supporting mass (8) tensioning supporting rope (3); Metal flexible net (1) comprises mesh (6), at least one mesh (6) being positioned at metal flexible net (1) top row or end row is connected to form the region with pooling feature by Joining clasp (5) and supporting rope (3), and this region is buffer area (4).
2. flexible blocking backstop according to claim 1, it is characterized in that: supporting mass (8) comprises fixed body (23) and rotor (22), rotor (22) is provided with locating slot (24), fixed body (23) is connected with support column (2), and supporting rope (3) is positioned in locating slot (24).
3. flexible blocking backstop according to claim 2, is characterized in that: the mesh (6) in buffer area (4) is connected with supporting rope (3) fully or partially through Joining clasp (5); When mesh (6) part in buffer area (4) is connected with supporting rope (3), there is not any direct connection relational in all the other mesh (6) and supporting rope (3).
4. flexible blocking backstop according to claim 3, is characterized in that: Joining clasp (5) is helical spring.
5. flexible blocking backstop according to claim 3, is characterized in that: Joining clasp (5) comprises by metal wire rod (15) bending ring bodies.
6. flexible blocking backstop according to claim 5, it is characterized in that: Joining clasp (5) comprise fastener (19) and be bent to form by metal wire rod (15) body of clasp (20), crosspoint (18) and free segment (17), metal wire rod (15) two parts connect according to predetermined load at crosspoint (18) place by fastener (19), and free segment (17) can move when extraneous load exceedes predetermined load in fastener (19).
7. flexible blocking backstop according to claim 6, is characterized in that: the end of free segment (17) is connected with skid-proof device (16).
8. flexible blocking backstop according to claim 5, is characterized in that: metal wire rod (15) bending two ends forms hasp (21), and two pieces hasp (21) mutually hook connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310382751.XA CN103410162B (en) | 2013-08-28 | 2013-08-28 | Flexible blocking backstop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310382751.XA CN103410162B (en) | 2013-08-28 | 2013-08-28 | Flexible blocking backstop |
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| CN103410162A CN103410162A (en) | 2013-11-27 |
| CN103410162B true CN103410162B (en) | 2015-08-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568876B (en) * | 2016-02-17 | 2018-09-04 | 布鲁克（成都）工程有限公司 | Flexible blocking backstop with additional connection structure |
| CN112211120A (en) * | 2019-07-09 | 2021-01-12 | 成都安比特建筑工程有限公司 | Preparation method of endless loop and engineering protective net |
| CN110344374A (en) * | 2019-07-17 | 2019-10-18 | 布鲁克（成都）工程有限公司 | Mud-rock flow flexible blocking backstop and mud-rock flow flexibility blocking dam |
| CN111636580A (en) * | 2020-05-27 | 2020-09-08 | 安徽富煌钢构股份有限公司 | Assembled steel construction house bearing diagonal coating structure |
| CN112942873A (en) * | 2021-01-26 | 2021-06-11 | 天津市管道工程集团有限公司 | High security protection network |
| CN118241895B (en) * | 2024-05-29 | 2024-07-26 | 中国化学工程第九建设有限公司 | Protective net assembly for scaffold |
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| US5961099A (en) * | 1998-01-23 | 1999-10-05 | Brugg Cable Products, Inc. | Safety net system for debris and mud slides |
| JP3440430B2 (en) * | 1999-11-09 | 2003-08-25 | 有限会社吉田構造デザイン | Rock fall fence |
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| CN103410162A (en) | 2013-11-27 |
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Effective date of registration: 20220210 Address after: 215000 5-101-1, building 5, No. 88, Jinling East Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Brooke Engineering (Suzhou) Co.,Ltd. Address before: 611731 No. 33 Tianlong Road, hi tech West District, Sichuan, Chengdu Patentee before: Geobrugg (Chengdu) Co.,Ltd. |