CN111997071A - Active and passive net combined flexible protection device - Google Patents

Active and passive net combined flexible protection device Download PDF

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Publication number
CN111997071A
CN111997071A CN202011016878.6A CN202011016878A CN111997071A CN 111997071 A CN111997071 A CN 111997071A CN 202011016878 A CN202011016878 A CN 202011016878A CN 111997071 A CN111997071 A CN 111997071A
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CN
China
Prior art keywords
passive
active
baffle
net
slope
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011016878.6A
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Chinese (zh)
Inventor
阎宗岭
谭玲
黄河
徐峰
杨光清
贾学明
刘中帅
马小斐
徐建强
李海平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Merchants Chongqing Communications Research and Design Institute Co Ltd
Original Assignee
China Merchants Chongqing Communications Research and Design Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Merchants Chongqing Communications Research and Design Institute Co Ltd filed Critical China Merchants Chongqing Communications Research and Design Institute Co Ltd
Priority to CN202011016878.6A priority Critical patent/CN111997071A/en
Publication of CN111997071A publication Critical patent/CN111997071A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E02D17/202—Securing of slopes or inclines with flexible securing means
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/40—Miscellaneous comprising stabilising elements

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

The invention discloses a flexible protection device combining an active net and a passive net, which comprises: passive protector, initiative protection network, activity stock, baffle bracing piece and the articulated seat of baffle, passive protector sets up on the slope of road surface one side, passive protector includes passive protection network, the baffle passes through the articulated seat setting of baffle is in on the slope, the articulated connection of baffle bracing piece one end the baffle is kept away from passive protector one side, the baffle bracing piece other end passes through movable mounting be in on the slope activity stock locking, initiative protection network one end with passive protection network connects, the initiative protection network other end with the activity stock is connected. According to the invention, the falling rock speed is slowed down through the passive protection device, and the falling rock is fixed on the slope surface of the side slope through the active protective net, so that the collapse of the active protective net caused by the accumulation of the falling rock can be prevented, and the falling rock is prevented from rolling onto a road and bringing risks to the passing of vehicles on the road.

Description

Active and passive net combined flexible protection device
Technical Field
The invention relates to the technical field of slope protection engineering, in particular to an active and passive net combined flexible protection device.
Background
The side slope flexible protection device mainly comprises an active net, a passive net, a curtain type net, shed tunnels and the like, and can well play a role in rockfall protection on the side slope types suitable for the side slope types according to the protection principles of the side slope flexible protection device. The active net can effectively stabilize rockfall in a short period, but rockfall accumulated in the protective net is increased continuously along with continuous weathering of side slope rocks, the protective net has a belly bulging phenomenon, the cleaning workload is large, the protective net can collapse in the long term, and the active net is easy to lose efficacy due to loss of prestress applied to the rocks by longitudinal and transverse supporting ropes of the protective net. The net piece of the passive net can be greatly deformed in the process of intercepting falling rocks, and if the passive net is set too low, a road and the passive net are damaged by a larger buffer distance; if the passive net is set too high, the falling rocks on the slope surface below the passive net cannot be protected. In addition, the passive net only plays a role in slowing down the rolling speed of the falling rocks, and the falling rocks can easily roll on a road even after being decelerated, so that risks are brought to the passing of vehicles on the road.
Disclosure of Invention
The invention aims to provide an active and passive net combined flexible protection device, which is characterized in that falling rocks are intercepted by a passive net, the rolling speed of the falling rocks is reduced, and the reduced falling rocks are fixed in an active net by the active net, so that the falling rocks are prevented from rolling on a road to bring risks to vehicle passing.
In order to achieve the above object, the present invention provides an active and passive mesh combined flexible guard, comprising: passive protector, initiative protection network, activity stock, baffle bracing piece and the articulated seat of baffle, passive protector sets up on the slope of road surface one side, passive protector includes passive protection network, the baffle passes through the articulated seat setting of baffle is in on the slope, the articulated connection of baffle bracing piece one end the baffle is kept away from passive protector one side, the baffle bracing piece other end passes through movable mounting be in on the slope activity stock locking, initiative protection network one end with passive protection network connects, the initiative protection network other end with the activity stock is connected.
Optionally, the active and passive mesh combined flexible guard further comprises: slide, slide and pre-buried pipe, the slide sets up on the side slope, slide slidable ground sets up in the slide, pre-buried pipe sets up and is burying in the side slope of slide one side, the baffle bracing piece with slide articulated connection, activity stock slidable ground sets up in the pre-buried pipe, be provided with movable anchor eye on the slide, the slide passes through movable anchor eye overlaps and establishes on the activity stock.
Optionally, still be provided with movable anchor spout on the slide, movable anchor spout with activity anchor eye intercommunication, the groove width of activity anchor spout is less than the aperture of activity anchor eye, the activity stock is close to initiative protection network one end diameter is greater than the activity stock is kept away from initiative protection network one end diameter works as the activity stock is to being close to the initiative protection network direction slides, the activity stock is kept away from initiative protection network one end slides to in the activity anchor eye, the slide can be kept away from through activity anchor spout the articulated seat of baffle.
Optionally, a sliding block is arranged in the embedded pipe, and the sliding block is connected with the movable anchor rod to prevent the movable anchor rod from slipping off from the embedded pipe.
Optionally, one side of the sliding block, which is far away from the movable anchor rod, is provided with an elastic piece.
Optionally, the slide is close to the articulated seat one side of baffle is provided with first connecting seat, the articulated seat of baffle is close to slide one side is provided with the second connecting seat, first connecting seat with the second connecting seat passes through chain block and connects.
Optionally, a plurality of support anchor rods are arranged on the side slope between the baffle and the passive protection device.
Optionally, the passive guard further comprises: the steel column is hinged to the seat and is arranged on the side slope, the steel column is arranged on the steel column hinged seat, the passive protective net is arranged on the steel column, one end, far away from the steel column hinged seat, of the steel column is fixed through the upward pulling anchor rope and the side pulling anchor rope, and the upward pulling anchor rope and the side pulling anchor rope are fixed through the fixing anchor rods.
Optionally, energy dissipaters are arranged on the pull-up anchor rope and the pull-side anchor rope.
Optionally, the passive protective net and the active protective net are connected through an upper fixing rope, and the slope distance between the upper fixing rope and the side slope is 0.4-0.6 m.
The invention provides an active and passive net combined flexible protection device, which comprises: passive protector, initiative protection network, activity stock, baffle bracing piece and the articulated seat of baffle, passive protector sets up on the slope of road surface one side, passive protector includes passive protection network, the baffle passes through the articulated seat setting of baffle is in on the slope, the articulated connection of baffle bracing piece one end the baffle is kept away from passive protector one side, the baffle bracing piece other end passes through movable mounting be in on the slope activity stock locking, initiative protection network one end with passive protection network connects, the initiative protection network other end with the activity stock is connected. According to the invention, the falling rocks are intercepted by the passive protection device, the falling rocks speed is slowed down, the falling rocks are fixed on the slope surface of the side slope through the active protection net, the weight of the falling rocks is supported by the baffle, the falling rocks are prevented from being accumulated to cause collapse of the active protection net, and the falling rocks are fixed in the active protection net, so that the falling rocks are prevented from rolling onto a road, and the risk is brought to the vehicle passing on the road.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a side view of an active and passive netting in combination with a flexible guard according to one embodiment of the present invention;
FIG. 2 is a front view of an active and passive mesh in combination with a flexible guard according to an embodiment of the present invention;
FIG. 3 is a schematic view of a support anchor provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a baffle plate connection structure according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a slide board according to an embodiment of the present invention.
Wherein: 1-slope, 2-fixed anchor, 3-pull-up anchor line, 4-energy dissipater, 5-steel column, 6-passive protective net, 7-steel column hinged seat, 8-active protective net, 9-movable anchor, 10-pavement, 11-rockfall, 12-side pull anchor line, 13-support anchor, 14-support anchor line, 15-upper fixed line, 16-lower fixed line, 17-pressure reducing ring, 18-baffle, 19-baffle support bar, 20-baffle hinged seat, 201-first connecting seat, 21-slide plate, 211-second connecting seat, 212-movable anchor hole, 213-movable anchor chute, 214-support hinged seat, 22-slide seat, 23-embedded pipe, 24-slide block, 25-elastic member, 26-chain block.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a side view of an active and passive net combined flexible guard according to an embodiment of the present invention, fig. 2 is a front view of an active and passive net combined flexible guard according to an embodiment of the present invention, fig. 3 is a schematic view of a support anchor according to an embodiment of the present invention, fig. 4 is a schematic view of a fender connecting structure according to an embodiment of the present invention, fig. 5 is a schematic view of a skateboard according to an embodiment of the present invention, and referring to fig. 1 to 5, the active and passive net combined flexible guard includes: the device comprises a passive protection device, an active protection net 8, a movable anchor rod 9, a baffle 18, a baffle support rod 19 and a baffle hinge seat 20. The passive protective device is arranged on a side slope 1 on one side of a road surface 10 and comprises a passive protective net 6. Baffle 18 passes through the articulated seat 20 of baffle sets up on the side slope 1, the articulated seat 20 anchor of baffle is on side slope 1, 19 one end of baffle bracing piece is articulated to be connected baffle 18 is kept away from passive protector one side, 19 other ends of baffle bracing piece are through movable mounting in on the side slope 1 movable stock 9 locks, 8 one end of initiative protection network with passive protection network 6 is connected, 8 other ends of initiative protection network with movable stock 9 connects. The lower end of the active protective net 8 is provided with a lower fixing rope 16, and the active protective net 8 is connected with the upper end of the movable anchor rod 9 through the lower fixing rope 16. The falling rocks 11 roll down from the upper part of the side slope 1, are buffered and decelerated by the passive protective net 6, then roll along the slope surface of the side slope 1 at a low speed and fall into the active protective net 8, and the falling rocks 11 of the active protective net 8 are supported by the baffle 18, so that the falling rocks 11 are prevented from being accumulated to cause the collapse of the active protective net 8. When the rockfall 11 needs to be cleaned, the movable anchor rods 9 are pulled out to release the baffle supporting rod 19, the baffle 18 rotates leftwards around the baffle hinging seat 20, and the rockfall 1 in the active protective net 8 rolls to the road 10 to be cleaned.
Referring to fig. 1-5, the active and passive mesh-bonded flexible guard further comprises: slide 21, slide 22 and buried pipe 23, slide 22 anchor is in on the side slope 1, slide 22 is including supplying the gliding track of slide 21, slide 21 slidable ground sets up in the slide 22, buried pipe 23 sets up and is burying in the side slope 1 of slide 22 one side, be provided with on the slide 21 and support articulated seat 214, baffle bracing piece 19 with slide 21 passes through support articulated seat 214 is articulated to be connected, activity stock 9 slidable ground sets up in the buried pipe 23, be provided with movable anchor hole 212 on the slide 21, slide 21 passes through movable anchor hole 212 cover is established on the activity stock 9.
Referring to fig. 1 to 5, a movable anchor sliding groove 213 is further disposed on the sliding plate 21, the movable anchor sliding groove 213 is communicated with the movable anchor hole 212, a groove width of the movable anchor sliding groove 213 is smaller than a bore diameter of the movable anchor hole 212, and a diameter of one end of the movable anchor rod 9 close to the active protection net 8 is larger than a diameter of one end of the movable anchor rod 9 far from the active protection net 8. When the movable anchor rod 9 is pulled upwards, one end of the movable anchor rod 9, which is far away from the active protective net 8, slides into the movable anchor hole 212, the baffle 18 turns to the left side under the action of gravity, the sliding plate 21 slides to the left side, and the lower end of the movable anchor rod 9 can pass through the movable anchor sliding groove 213. A sliding block 25 is arranged in the embedded pipe 23, and the sliding block 25 is connected with the movable anchor rod 9 to prevent the movable anchor rod 9 from slipping off the embedded pipe 23. The slider 25 is provided with an elastic member 25 on one side away from the movable anchor rod 9, and the elastic member 25 comprises a spring.
Referring to fig. 1 to 5, a first connecting seat 211 is disposed on one side of the sliding plate 21 close to the baffle plate hinge seat 20, a second connecting seat 201 is disposed on one side of the baffle plate hinge seat 20 close to the sliding plate 21, and the first connecting seat 211 and the second connecting seat 201 are connected by a chain block 26. When more rockfall 11 are accumulated in the active protection net 8 and the baffle 18 bears larger force, the shear force borne by the movable anchor rods 9 of the locking sliding plate 21 and the sliding seat 22 is increased and is difficult to pull out, and the shear force borne by the movable anchor rods 9 can be reduced by pulling the sliding plate 21 through the chain block 26. Meanwhile, when the falling rocks 11 need to be cleaned, the sliding plate 21 is pulled through the chain block 26, the shearing force borne by the movable anchor rod 9 is reduced, the movable anchor rod 9 bounces upwards under the action of the elastic piece 25, and then the falling rocks in the active protective net 8 slowly roll to the road surface 10 through the slow release of the chain block 26, so that the falling rocks can be cleaned conveniently.
Referring to fig. 1 to 5, the passive protective net 6 and the active protective net 8 are connected by an upper fixing rope 15, and the slope distance between the upper fixing rope 15 and the side slope 1 is 0.4-0.6 m. A plurality of support anchor rods 13 are arranged on the side slope between the baffle 18 and the passive protection device, and the distance between two adjacent support anchor rods 13 is greater than the slope distance between the upper fixing rope 15 and the side slope 1. The active protective net 8 is fixed at the top end of a support anchor rod 13 through a support anchor rope 14, and two ends of the support anchor rope 14 are anchored on the slope surfaces on the left side and the right side of the active protective net 8. The active protective net 8 plays a role of fixing the ground to the slope surface of the side slope 1, and the baffle 18 and the support anchor 13 play a role of supporting the rockfall 11.
Referring to fig. 1-5, the passive guard further comprises: the anchor rod fixing device comprises a fixing anchor rod 2, an upper pull anchor rope 3, a steel column 5, a passive protective screen 6, a steel column hinging seat 7 and a side pull anchor rope 12, wherein the steel column hinging seat 7 is arranged on the side slope 1, and the steel column 5 is arranged on the steel column hinging seat 7. A plurality of steel columns 5 are arranged along the horizontal direction, and a passive protective net 6 is arranged between the adjacent steel columns 5. One end, far away from the steel column hinge seat 7, of the steel column 5 is fixed through the upper pull anchor rope 3 and the side pull anchor rope 12, the upper pull anchor rope 3 is arranged above the steel column 5, one end of the upper pull anchor rope 12 is connected with the steel column 5, and the other end of the upper pull anchor rope 12 is anchored on the side slope 1 through a fixing anchor rod 2; the side pulling anchor ropes 12 are arranged at the top ends of the steel columns 5 and connected with the steel columns 5, and two ends of the side pulling anchor ropes 12 are anchored on the side slope 1 through fixing anchor rods 2 arranged on the left side and the right side of the passive protective screening 6. Energy dissipaters 4 are arranged on the upper pull anchor rope 3 and the side pull anchor rope 12, and each energy dissipater 4 comprises a pressure reducing ring 17.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (10)

1. An active and passive mesh combined flexible guard, comprising: passive protector, initiative protection network, activity stock, baffle bracing piece and the articulated seat of baffle, passive protector sets up on the slope of road surface one side, passive protector includes passive protection network, the baffle passes through the articulated seat setting of baffle is in on the slope, the articulated connection of baffle bracing piece one end the baffle is kept away from passive protector one side, the baffle bracing piece other end passes through movable mounting be in on the slope activity stock locking, initiative protection network one end with passive protection network connects, the initiative protection network other end with the activity stock is connected.
2. The active-passive web-bonded flexible guard of claim 1, further comprising: slide, slide and pre-buried pipe, the slide sets up on the side slope, slide slidable ground sets up in the slide, pre-buried pipe sets up and is burying in the side slope of slide one side, the baffle bracing piece with slide articulated connection, activity stock slidable ground sets up in the pre-buried pipe, be provided with movable anchor eye on the slide, the slide passes through movable anchor eye overlaps and establishes on the activity stock.
3. The active and passive net combined flexible protection device according to claim 2, wherein the sliding plate is further provided with a movable anchor sliding groove, the movable anchor sliding groove is communicated with the movable anchor hole, the groove width of the movable anchor sliding groove is smaller than the aperture of the movable anchor hole, the diameter of the movable anchor rod close to one end of the active protection net is larger than the diameter of the movable anchor rod far away from one end of the active protection net, when the movable anchor rod slides towards the direction close to the active protection net, the end of the movable anchor rod far away from the active protection net slides into the movable anchor hole, and the sliding plate can be far away from the baffle hinge seat through the movable anchor sliding groove.
4. The active and passive mesh combined flexible protection device according to claim 3, wherein a sliding block is arranged in the embedded pipe, and the sliding block is connected with the movable anchor rod to prevent the movable anchor rod from slipping off the embedded pipe.
5. The active and passive mesh combined flexible guard of claim 4, wherein the side of the slider away from the movable anchor is provided with an elastic member.
6. The active and passive net combined flexible protection device according to claim 3, wherein a first connecting seat is arranged on one side of the sliding plate close to the baffle hinge seat, a second connecting seat is arranged on one side of the baffle hinge seat close to the sliding plate, and the first connecting seat and the second connecting seat are connected through a chain block.
7. The active and passive net combined flexible guard according to claim 1, wherein a plurality of support anchors are provided on the side slope between the apron and the passive guard.
8. The active-passive web-bonded flexible guard of claim 1, further comprising: the steel column is hinged to the seat and is arranged on the side slope, the steel column is arranged on the steel column hinged seat, the passive protective net is arranged on the steel column, one end, far away from the steel column hinged seat, of the steel column is fixed through the upward pulling anchor rope and the side pulling anchor rope, and the upward pulling anchor rope and the side pulling anchor rope are fixed through the fixing anchor rods.
9. The active and passive net combined flexible guard according to claim 8, wherein energy dissipaters are provided on both the pull-up anchor lines and the side pull anchor lines.
10. The active-passive net combined flexible protection device according to claim 8, wherein the passive protection net and the active protection net are connected through an upper fixing rope, and the slope distance between the upper fixing rope and the side slope is 0.4-0.6 m.
CN202011016878.6A 2020-09-24 2020-09-24 Active and passive net combined flexible protection device Pending CN111997071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011016878.6A CN111997071A (en) 2020-09-24 2020-09-24 Active and passive net combined flexible protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011016878.6A CN111997071A (en) 2020-09-24 2020-09-24 Active and passive net combined flexible protection device

Publications (1)

Publication Number Publication Date
CN111997071A true CN111997071A (en) 2020-11-27

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CN202011016878.6A Pending CN111997071A (en) 2020-09-24 2020-09-24 Active and passive net combined flexible protection device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112832260A (en) * 2020-12-31 2021-05-25 山东鲁桥建设有限公司 Cutting slope reinforced passive protection system and construction method thereof
CN113718670A (en) * 2021-09-14 2021-11-30 应急管理部国家自然灾害防治研究院 Distributed active energy dissipation structure for high-position landslide in strong earthquake region and construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112832260A (en) * 2020-12-31 2021-05-25 山东鲁桥建设有限公司 Cutting slope reinforced passive protection system and construction method thereof
CN113718670A (en) * 2021-09-14 2021-11-30 应急管理部国家自然灾害防治研究院 Distributed active energy dissipation structure for high-position landslide in strong earthquake region and construction method
CN113718670B (en) * 2021-09-14 2022-07-22 应急管理部国家自然灾害防治研究院 Distributed active energy dissipation structure for high-position landslide in strong earthquake region and construction method

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