CN108798738A - A kind of movable hanging bone plate supporting construction in tunnel - Google Patents
A kind of movable hanging bone plate supporting construction in tunnel Download PDFInfo
- Publication number
- CN108798738A CN108798738A CN201810980382.7A CN201810980382A CN108798738A CN 108798738 A CN108798738 A CN 108798738A CN 201810980382 A CN201810980382 A CN 201810980382A CN 108798738 A CN108798738 A CN 108798738A
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- tunnel
- shaft
- overhead gage
- hinged
- side shield
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
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- 239000011521 glass Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
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- 239000002184 metal Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
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- 229910000851 Alloy steel Inorganic materials 0.000 description 1
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- 238000009412 basement excavation Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
- E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention discloses a kind of movable hanging bone plate supporting construction in tunnel,Including overhead gage,Side shield,Bower Anchor bar,Assist anchor pole,Push up shaft,Side shaft,Shrapnel,Positive stop spring plate,Limit drag-line,Overhead gage both ends are hinged with top shaft and side shaft respectively,Side shield upper end is hinged with side shaft,Bower Anchor bar upper end is anchored at the top of tunnel and lower end is hinged or is fixedly connected with top shaft,Pushing up shaft both sides, symmetrically hinged overhead gage forms inverted " u "-shaped or " Λ " shape,Symmetrically hinged overhead gage lower surface is affixed with top shaft both sides respectively for shrapnel,Positive stop spring plate is in " C " shape structure and set on overhead gage lower surface and side shield medial surface,The inner surface of the lower surface or side shield of positive stop spring plate side and overhead gage is affixed,Auxiliary anchor pole one end is anchored in one end of the wall of tunnel spring line and the affixed limit drag-line of the other end,The other end and the side shaft for limiting drag-line are affixed.The present invention is capable of " the roof fall wall caving " of effective protection mine working or provisional traffic tunnel.
Description
Technical field
The invention belongs to Roadway Support Technology fields, and in particular to one kind is simple in structure, the construction period is short, repeatable utilization
The movable hanging bone plate supporting construction in the good tunnel of " roof fall wall caving " protection effect.
Background technology
Roof fall wall caving refer to mine, tunnel, culvert excavate, during lining cutting because of excavation, inspection, processing float stone or supporting not
At the top of, tunnel or side wall country rock by concussion of blasting, outer force-disturbance, buckling, Stress relieving of surrounding rocks when sillar it is unexpected
Collapse the accident for falling and being damaged to operating personnel.Work surface, the phenomenon that collapses of tunnel side wall are known as wall caving, and top is caving title
For roof fall.
Underground metal or non-metal mine belong to high risk industries, wherein " roof fall wall caving " is dangerous maximum, generation frequency
One of highest safety accident of rate, accounts for about 40% or more of mining accident.Currently, preventing and underworkings being protected " to emit top flat
The measure of side " safety accident（Or support pattern）Mainly there is tunnel integral concrete to pour supporting, section-steel support, Bolt net and jet
Concrete supporting, plain concrete ejection supporting etc..Although above-mentioned support pattern can effectively prevent and protect " roof fall wall caving " substantially,
But there is also tedious process, the duration compared with long, labor intensity is big, cost is high, can not or be difficult to reuse the shortcomings that.It is special
It is not the trapezoidal rigid support supporting of widely used I-steel, since rigid support is unable to the displacement of suitable for surrounding rock, and nothing
Mechanical resistance stops the deformation of country rock, it is difficult to avoid causing deformation and failure because overloading supporting.Therefore, for underground mines rigid support
Supporting can neither form tunnel long-acting support, and when causing " roof fall wall caving " due to the standoff gap of rigid support supporting
It is difficult to form effective protection, it is necessary to which auxiliary is protected using ancillary measures such as anchor net, whitewashings, causes underground must scene
Gradually construction could form complete supporting construction so that long construction period, labor intensity are big, and holder and anchor net etc. can not
Recycling, causes overall cost higher.
Invention content
The present invention is in view of the problems of the existing technology and insufficient, provide it is a kind of it is simple in structure, the construction period is short, can weigh
It is multiple to utilize and the movable hanging bone plate supporting construction in the good tunnel of " roof fall wall caving " protection effect.
The invention is realized in this way：Including overhead gage, side shield, Bower Anchor bar, auxiliary anchor pole, top shaft, side shaft, bullet
Piece, positive stop spring plate, limit drag-line, described overhead gage one end is hinged with top shaft and the other end and side shaft are hinged, the side block
The upper end of plate and side shaft are hinged, and Bower Anchor bar upper end is anchored in tunnel top and lower end is hinged with top shaft or fixed company
It connects, the top shaft is arranged along tunnel extending direction and symmetrically hinged overhead gage forms inverted " u "-shaped or " Λ " shape for both sides, described
Shrapnel both sides are fixedly connected with the lower surface of the symmetrical hinged overhead gage in top shaft both sides respectively, and the positive stop spring plate is in " C " shape
Structure and overhead gage lower surface and the side shield medial surface for being set to side shaft connection, the positive stop spring plate side and overhead gage
The inner surface of lower surface or side shield is fixedly connected, and described auxiliary anchor pole one end is anchored in the wall of tunnel spring line and another
End is fixedly connected with one end of limit drag-line, and the other end of the limit drag-line is fixedly connected with side shaft.
The present invention has the advantages that compared with prior art：
1, the present invention connects the overhead gage of both sides by pushing up shaft, and then overhead gage connects side shield by side shaft, whole logical
It crosses top shaft to connect to form hanging structure with the Bower Anchor bar being anchored at the top of tunnel, then to be anchored in tunnel spring line wall
Auxiliary anchor pole and limit drag-line offside shaft limited, not only Bower Anchor bar and auxiliary anchor pole itself have to roadway surrounding rock
Firm effect, and the whole rock that " roof fall " can be made to fall gently falls on overhead gage and tilts landing to tunnel both sides, significantly
Acceleration of gravity when rock is fallen is slowed down, the impact force of " roof fall " rock is reduced；It can also prevent from falling by side shield
Rock to tunnel both sides rolls on the inside of tunnel, to effectively avoid the generation of " roof fall wall caving " casualty accident.
2, the present invention in the lower surface of overhead gage by being arranged shrapnel, when tunnel occurs " roof fall " and falls rock,
Shrapnel can be made to deform under rock gravity so that the overhead gage of rock side moves down and other side overhead gage is motionless or move up, from
And so that the overhead gage gradient of rock side increases and is conducive to fall of rocks, and under the action of shrapnel, both sides after fall of rocks
Upper guard board self recovery to normal condition, to provide preferable protective effect to the operating personnel in tunnel.
3, the present invention can occur " wall caving " in tunnel and fall rock by the way that positive stop spring plate is arranged between overhead gage and side shield
Shi Shi, side shield forms certain rock to rotation on the inside of tunnel and falls space under rock gravity and squeezing action, and limits
The flexible deformation resistance of shrapnel can prevent side shield lower part excessive to rotation angle on the inside of tunnel and injure the personnel in tunnel,
And under the action of positive stop spring plate, rock falls rear side backplate self recovery to normal condition, to the operation people in tunnel
Member provides preferable protective effect.
4, the present invention does not carry out permanence Gravity support to tunnel rock stratum（It is different from steel arch-shelf Gravity support formula supporting knot
Structure）, therefore it is prefabricated to can be used high-strength light, and generally modular construction, is not only simple in structure, is easy to make, can
Reusing is high, and convenient for scene transport, storage, installation and removal.
5, by assisting anchor pole and limit drag-line offside shaft to be limited in back " roof fall " thing occurs for the present invention
Therefore fall of rocks makes to suspend side shaft in midair when side shield is movable downwards, so that side shield bottom minimum point is not touched by side shaft
Encounter roadway floor（Apart from roadway floor 10cm or so）, it can prevent side shield from being tilted to tunnel outside with larger angle,
Indent is formed between side shaft end and overhead gage to damage personnel, and is avoided that the collsion damage of side shield bottom end.
6, the present invention according to actual needs can install the outstanding shield bone plate that multiple overhead gages and side shield are constituted simultaneously
Yu Yigen is pushed up in shaft, and each outstanding shield bone plate can work independently；Also it is separately installed in a top turn that shield bone plate will can each be hanged
On axis, respectively works independently, improve adaptability.
7, the present invention by the range sensor that is installed in tunnel to the overhead gage or side shield certain point distance range
Real-time monitoring, binding signal transmission cable, alarm or monitor（Containing PLC chip）Etc. equipment, you can realize to underground lane
The remote alarms of road " roof fall wall caving " accident and in real time monitoring can be that underground mines landscape security pattern brings revolutionary change.
Therefore, stress science of the present invention, it is safe and reliable, it is applied widely, it is particularly suitable for underground metal or nonmetallic ore
Most of existing supporting pattern of underground mines both at home and abroad can be changed in the supporting in mountain tunnel, can effectively prevent underworkings, interim
Property traffic tunnel etc. " roof fall wall caving " accident occurs, have that simple in structure, the construction period is short, repeatable usability is high and " roof fall
The good feature of wall caving " protection effect.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 deforms schematic diagram when being " roof fall " falling rocks of the present invention；
Fig. 3 is the rotary joint attachment structure schematic diagram of the present invention；
In figure：1- overhead gages, 2- side shields, 3- Bower Anchor bars, 4- assist anchor pole, 5- to push up shaft, the sides 6- shaft, 7- shrapnels, 8- limits
Position shrapnel, 9- limit drag-lines, 10- monitoring systems, 10A- range sensors, 10B- long-distance alarm apparatus, 10C- signal-transmitting cables,
11- clump weights, 12- cushion pads, 13- rotary joints, 13A- straight-bar bulb spherical plain bearing rod ends, the left connection fixing blocks of 13B-,
The right connection fixing blocks of 13C-, 14- walls, 15- roadway floors, 16- roadway ditch, 17- fixing bolts, 18- falling rocks.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples, but is not subject in any way to the present invention
Limitation, be based on present invention teach that made by any changes and modifications, all belong to the scope of protection of the present invention.
As shown in Figures 1 to 3, the present invention includes overhead gage 1, side shield 2, Bower Anchor bar 3, auxiliary anchor pole 4, top shaft 5, side turn
Axis 6, shrapnel 7, positive stop spring plate 8, limit drag-line 9,1 one end of the overhead gage is hinged with top shaft 5 and the other end is cut with scissors with side shaft 6
It connects, the upper end of the side shield 2 is hinged with side shaft 6, and 3 upper end of Bower Anchor bar is anchored at the top of tunnel and lower end and top shaft
5 is hinged or be fixedly connected, and the top shaft 5 is arranged along tunnel extending direction and symmetrically hinged overhead gage 1 forms inverted " u " for both sides
Shape or " Λ " shape, 7 both sides of the shrapnel are fixedly connected with the lower surface of the symmetrical hinged overhead gage 1 in top shaft 5 both sides respectively, institute
Positive stop spring plate 8 is stated in " C " shape structure and is set to 1 lower surface of overhead gage and 2 medial surface of side shield of the connection of side shaft 6, it is described
8 side of positive stop spring plate is fixedly connected with the inner surface of the lower surface of overhead gage 1 or side shield 2,4 one end of auxiliary anchor pole anchoring
It is fixedly connected with one end of limit drag-line 9, the other end of the limit drag-line 9 and side in the wall and the other end of tunnel spring line
Shaft 6 is fixedly connected.
The top shaft 5 along tunnel extending direction arrange and respectively with along the spaced more Bower Anchors of tunnel extending direction
Bar 3 is hinged or is fixedly connected, and the overhead gage 1 is at least arranged symmetrically 2 groups along top 5 axis direction of shaft.
The top shaft 5 at least arranges that 2 and each both ends are prolonged with along tunnel respectively before and after the extending direction of tunnel
It stretches the spaced Bower Anchor bar 3 in direction to be hinged or be fixedly connected, the overhead gage 1 pushes up 5 axis direction of shaft at least along each
2 groups or each top shafts 5 of symmetrical hinge arrangement are symmetrically hinged one group of overhead gage 1.
It is described limit drag-line 9 auxiliary anchor pole 4 and side shaft 6 between length be to push up shaft 5 no more than homonymy side shaft 6
When the center of circle, overhead gage 1 are that radius moves downwardly to 2 distance from bottom roadway floor 10cm of side shield, 2 top of side shield and piggy-back anchor
Air line distance between bar 4.
The limit drag-line 9 is stainless steel cable wire, zinc-plated or nickel plating cable wire or iron chains or high molecular polymer rope.
The overhead gage 1 includes the upper skeleton along the spaced and parallel setting of tunnel extending direction, fixation and is covered in upper skeleton
Upper cover plate, the both ends of the upper skeleton are hinged with top shaft 5 and side shaft 6 respectively, and the side shield 2 includes extending along tunnel
Side skeleton, fixation and the side cover plate for being covered in side skeleton that direction interval is vertically arranged, upper end and the side shaft 6 of the side skeleton
It is hinged.
The upper skeleton and/or side skeleton are aluminium alloy, stainless steel or zinc-plated, chromium plating angle steel, square steel, I-steel or steel
Pipe, steel plate that the upper cover plate and/or side cover plate are a plane or an arc surface, aluminium alloy plate, nylon sheet, PVC board, glass mat,
Carbon fiber board.
The invention also includes monitoring system 10, the monitoring system 10 include be fixedly installed on wall and with overhead gage 1
Or the corresponding range sensor 10A in 2 certain point of side shield, the long-distance alarm apparatus 10B for being set to distal end, the range sensor
10A is connect by signal-transmitting cable with long-distance alarm apparatus 10B.
The lower part of the side shield 2 is fixedly installed clump weight 11, the lower outside face of the side shield 2 and/or upper gear
Lateral surface of the plate 1 by 6 side of nearside shaft is fixedly installed cushion pad 12.
3 lower end of the anchor pole is hinged or is fixedly connected with top shaft 5 by rotary joint 13, and the rotary joint 13 includes
Straight-bar bulb spherical plain bearing rod end 13A, left connection fixing block 13B, right connection fixing block 13C, the straight-bar bulb rod end joint
The seat bar of bearing 13A is fixedly connected with 3 lower end of Bower Anchor bar, connecting rod and the left company of the straight-bar bulb spherical plain bearing rod end 13A
The sides fixed block 13B are connect to be fixedly connected, the left connection fixing block 13B be fixedly connected with right connection fixing block 13C and perpendicular to
The connecting rod of straight-bar bulb spherical plain bearing rod end 13A is provided with the through-hole coordinated with top shaft 5.
Operation principle and the course of work of the present invention：
The present invention connects the overhead gage of both sides by pushing up shaft, and then overhead gage connects side shield by side shaft, entirely through
Top shaft connect to form hanging structure with the Bower Anchor bar being anchored at the top of tunnel, then to be anchored in tunnel spring line wall
Auxiliary anchor pole and limit drag-line offside shaft limited, not only Bower Anchor bar and auxiliary anchor pole itself have roadway surrounding rock steady
Gu effect, and the whole rock that " roof fall " can be made to fall gently falls on overhead gage and tilts landing to tunnel both sides, subtracts significantly
Delay acceleration of gravity when rock is fallen, reduces the impact force of " roof fall " rock；It can also prevent from falling to by side shield
The rock of tunnel both sides rolls on the inside of tunnel, to effectively avoid the generation of " roof fall wall caving " casualty accident；By in overhead gage
Lower surface shrapnel is set, " roof fall " occurs when falling rock in tunnel, shrapnel can be made to deform under rock gravity, made
The overhead gage of rock side moves down and other side overhead gage is motionless or move up so that the overhead gage gradient of rock side increases
And be conducive to fall of rocks, and under the action of shrapnel, after fall of rocks the upper guard board self recovery of both sides to normal condition, to
Preferable protective effect is provided to the operating personnel in tunnel；It, can be by the way that positive stop spring plate is arranged between overhead gage and side shield
When tunnel occurs " wall caving " and falls rock, side shield is formed certain to rotation on the inside of tunnel under rock gravity and squeezing action
Rock fall space, and the flexible deformation resistance of positive stop spring plate can prevent side shield lower part from being spent to rotation angle on the inside of tunnel
Big and injure the personnel in tunnel, and under the action of positive stop spring plate, rock falls rear side backplate self recovery to normal condition,
To provide preferable protective effect to the operating personnel in tunnel；The present invention does not carry out permanence Gravity support to tunnel rock stratum
（It is different from steel arch-shelf Gravity support formula supporting construction）, therefore it is prefabricated to can be used high-strength light, and generally assembly type
Structure is not only simple in structure, is easy to make, repeatable usability height, and transports, storage, mounts and dismounts convenient for scene；It is logical
It crosses auxiliary anchor pole and limit drag-line offside shaft is limited, " roof fall " accident occurs in back, fall of rocks makes side block
Plate suspends side shaft in midair when movable downwards, so that side shield bottom minimum point is not touched roadway floor by side shaft（Distance
Roadway floor 10cm or so）, side shield can be prevented with larger angle to inclination on the outside of tunnel, between side shaft end and overhead gage
It forms indent to damage personnel, and is avoided that the collsion damage of side shield bottom end.Further, the present invention is according to actual use
It needs the outstanding shield bone plate that multiple overhead gages and side shield are constituted can be installed on simultaneously in a top shaft, each outstanding to protect bone plate equal
It can work independently；Also it is separately installed in a top shaft will can each to hang shield bone plate, respectively works independently, improves adaptation energy
Power.Further, by the range sensor that is installed in tunnel to the reality of the overhead gage or side shield certain point distance range
When monitor, binding signal transmission cable, alarm or monitor（Containing PLC chip）Etc. equipment, you can realization underworkings " is emitted
The remote alarms of top flat side " accident and monitoring in real time can be that underground mines landscape security pattern bring revolutionary change.To sum up institute
It states, stress science of the present invention is safe and reliable, applied widely, is particularly suitable for the branch in underground metal or non-metal mine tunnel
Shield can be changed the existing supporting pattern of most of underground mines both at home and abroad, can effectively prevent underworkings, provisional traffic tunnel
Deng generation " roof fall wall caving " accident, with simple in structure, the construction period is short, repeatable usability is high and " roof fall wall caving " protection is imitated
The good feature of fruit.
As shown in Figures 1 to 3, according to different use environments and tunnel situation, using different size, size cement mortar or
Resin Bower Anchor bar 3, at spacing intervals along center line in roadway（Such as 2m, 3m, 5m）Mounted on tunnel top center position.Due to
It is all flat with tunnel center that Bower Anchor bar 3 is difficult to the straight line that the exposed point of suspension of each anchor pole is formed in actual installation process
Row, therefore a special rotary joint 13 is installed on 3 point of suspension of Bower Anchor bar, to connect Bower Anchor bar 3 and top shaft 5, make
The present invention is basically parallel to center line in roadway after installation is complete.According to tunnel practical service environment and situation, using different size,
The materials such as the plane of size or cambered surface steel plate, aluminium alloy plate, nylon sheet, PVC board, glass mat, carbon fiber board are kept off on making
Then the upper cover plate of plate 1 is fixed by bolts on upper skeleton, upper skeleton both ends are hinged with top shaft 5 and side shaft 6 respectively.
Shrapnel 7 and limit bullet are made using high resiliency, fatigue resistance elastic alloy steel disc or nylon high, with antirust, anti-corrosive performance
Then piece 8 uses fastening bolt 17 that shrapnel 7 is respectively arranged in two upper skeletons of top 8 both sides overhead gage 1 of shaft, and every
One is installed on a pair of of skeleton.Usually shrapnel 7 plays support upper skeleton, makes its expansion in outstanding shield state, and occurs in tunnel
When " roof fall " falls sillar, can be made by the gravity of rock itself shrapnel 7 downwards occur flexible deformation, cause bone plate structure by
Power one is sloped downwardly, to allow the quick slide guide of sillar to fall to tunnel both sides.Wait for that rock is fallen further through its own elasticity
Upper skeleton rebound is set to restore to continue the safety for protecting tunnel to pass through personnel to original state.Side skeleton in side shield 2 and upper bone
Positive stop spring plate 8 is set between frame, the junction of upper skeleton or side skeleton is installed on using fastening bolt 17, is installed on every a pair of skeleton
One.When " wall caving " accident fall of rocks occurs for tunnel, the limitation side oscillation excessively into tunnel of side shield 2 hurts operation people
The effect of member, while limiting and rock is made to fall on the two sides of tunnel.Situation is actually used according to tunnel, and cement bonded sand may be selected
Slurry, resin anchor or pipe-seam type anchor rod, in tunnel arch camber line position along center line in roadway each peace symmetrical at a certain distance
An auxiliary anchor pole 4 is filled, auxiliary anchor pole 4 is mounted on Bower Anchor bar 3 on same drift section, and in auxiliary anchor pole 4 and side shaft 6
Or between the side skeleton of side shield 2, with antirust, antiseptic property good cable wire, iron chains or high molecular polymer（Such as nylon）It makes
Limit drag-line 9 be flexibly connected, make tunnel generation " roof fall wall caving " fall of rocks make side shield 2 downwards activity when,
It tenses and suspending side shield 2 in midair makes its minimum point not fall to the ground, to avoid side shield 2 at 6 end of side shaft and overhead gage 1
Indent is formed to damage personnel.Can distance be installed additional in tunnel both sides according to actual needs（Position）Sensor 10A leads to
Cross the distance of monitoring overhead gage 1 or 2 corresponding certain point of side shield in real time（Position）In tunnel " roof fall wall caving " thing occurs for situation
So when overhead gage 1 or 2 position of side shield being made to shift, the long-distance alarm apparatus 10B of distal end alarms（Monitoring）, realize well
Lower mine（Tunnel）Intelligence, the long-range alarm of " roof fall wall caving "（Monitoring）.Distance（Position）Sensor 10A is set as having
The sensor of certain time-delay function and investigative range.Because the wiping that downhole blasting vibrations, vehicular traffic, personnel etc. accidentally occur is touched
Deng can cause baffle that small-scale swing occurs, therefore need sensor that there is certain investigative range；In addition it is slided in rock because of baffle
Backwardness can quickly be rebounded back original state by shrapnel, have self- recoverage characteristic, therefore the general sillar that tunnel occurs falls feelings
Condition will not cause sensor and send out alarm signal（I.e. sensor has the function of delayed alarm）.Only when tunnel, generation is larger
" roof fall wall caving " accident sillar, which is stuck among baffle, voluntarily to be fallen or baffle can not voluntarily be restored by the destruction of other external force, surpassed
Go out sensor detection time and investigative range, can just send out alarm signal.
Claims (9)
1. a kind of movable hanging bone plate supporting construction in tunnel, it is characterised in that including overhead gage（1）, side shield（2）, Bower Anchor
Bar（3）, auxiliary anchor pole（4）, top shaft（5）, side shaft（6）, shrapnel（7）, positive stop spring plate（8）, limit drag-line（9）, it is described on
Baffle（1）One end and top shaft（5）The hinged and other end and side shaft（6）It is hinged, the side shield（2）Upper end and side shaft
（6）It is hinged, the Bower Anchor bar（3）Upper end is anchored at the top of tunnel and lower end and top shaft（5）It is hinged or is fixedly connected, the top
Shaft（5）Along the symmetrical hinged overhead gage in the setting of tunnel extending direction and both sides（1）Form inverted " u "-shaped or " Λ " shape, the bullet
Piece（7）Both sides respectively with top shaft（5）The symmetrical hinged overhead gage in both sides（1）Lower surface be fixedly connected, the positive stop spring plate
（8）In " C " shape structure and it is set to side shaft（6）The overhead gage of connection（1）Lower surface and side shield（2）Medial surface, the limit
Position shrapnel（8）Side and overhead gage（1）Lower surface or side shield（2）Inner surface be fixedly connected, the auxiliary anchor pole（4）One
End is anchored in the wall of tunnel spring line and the other end is fixedly connected with limit drag-line（9）One end, the limit drag-line（9）'s
The other end and side shaft（6）It is fixedly connected.
2. the movable hanging bone plate supporting construction in tunnel according to claim 1, it is characterised in that the top shaft（5）Edge
Tunnel extending direction arrangement and respectively with along the spaced more Bower Anchor bars of tunnel extending direction（3）It is hinged or is fixedly connected,
The overhead gage（1）Along top shaft（5）Axis direction is at least arranged symmetrically 2 groups.
3. the movable hanging bone plate supporting construction in tunnel according to claim 1, it is characterised in that the top shaft（5）Edge
At least arranged before and after the extending direction of tunnel 2 and each both ends respectively with along the spaced Bower Anchor bar of tunnel extending direction
（3）It is hinged or is fixedly connected, the overhead gage（1）Along each top shaft（5）Axis direction at least 2 groups of symmetrical hinge arrangement or
Each top shaft（5）Symmetrically it is hinged one group of overhead gage（1）.
4. according to the movable hanging bone plate supporting construction in the tunnel of claim 1,2 or 3, it is characterised in that the limit is drawn
Rope（9）In auxiliary anchor pole（4）With side shaft（6）Between length be not more than homonymy side shaft（6）To push up shaft（5）For the center of circle, on
Baffle（1）Side shield is moved downwardly to for radius（2）When distance from bottom roadway floor 10cm, side shield（2）Top and piggy-back anchor
Bar（4）Between air line distance.
5. the movable hanging bone plate supporting construction in tunnel according to claim 4, it is characterised in that the overhead gage（1）Packet
The upper skeleton along the spaced and parallel setting of tunnel extending direction, fixation and the upper cover plate for being covered in upper skeleton are included, the upper skeleton
Both ends respectively with top shaft（5）And side shaft（6）It is hinged, the side shield（2）Including being set vertically along tunnel extending direction interval
Side skeleton, fixation and the side cover plate for being covered in side skeleton set, upper end and the side shaft of the side skeleton（6）It is hinged.
6. the movable hanging bone plate supporting construction in tunnel according to claim 5, it is characterised in that the upper skeleton and/or
Side skeleton is aluminium alloy, stainless steel or zinc-plated, chromium plating angle steel, square steel, I-steel or steel pipe, the upper cover plate and/or side cover
Steel plate that plate is a plane or an arc surface, aluminium alloy plate, nylon sheet, PVC board, glass mat, carbon fiber board.
7. the movable hanging bone plate supporting construction in tunnel according to claim 4, it is characterised in that further include monitoring system
（10）, the monitoring system（10）Including being fixedly installed on wall and and overhead gage（1）Or side shield（2）Certain point is corresponding
Range sensor（10A）, be set to the long-distance alarm apparatus of distal end（10B）, the range sensor（10A）Pass through signal transmission electricity
Cable and long-distance alarm apparatus（10B）Connection.
8. the movable hanging bone plate supporting construction in tunnel according to claim 4, it is characterised in that the side shield（2）'s
Lower part is fixedly installed clump weight（11）, the side shield（2）Lower outside face and/or overhead gage（1）By nearside shaft（6）
The lateral surface of side is fixedly installed cushion pad（12）.
9. the movable hanging bone plate supporting construction in tunnel according to claim 4, it is characterised in that the anchor pole（3）Lower end
Pass through rotary joint（13）With top shaft（5）It is hinged or is fixedly connected, the rotary joint（13）It is closed including straight-bar bulb rod end
Bearings（13A）, left connection fixing block（13B）, right connection fixing block（13C）, the straight-bar bulb spherical plain bearing rod end（13A）
Seat bar and Bower Anchor bar（3）Lower end is fixedly connected, the straight-bar bulb spherical plain bearing rod end（13A）Connecting rod and left connection it is solid
Determine block（13B）Side is fixedly connected, the left connection fixing block（13B）With right connection fixing block（13C）It is fixedly connected and vertically
In straight-bar bulb spherical plain bearing rod end（13A）Connecting rod be provided with top shaft（5）The through-hole of cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980382.7A CN108798738B (en) | 2018-08-27 | 2018-08-27 | Movable suspension bone plate supporting structure for roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980382.7A CN108798738B (en) | 2018-08-27 | 2018-08-27 | Movable suspension bone plate supporting structure for roadway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798738A true CN108798738A (en) | 2018-11-13 |
| CN108798738B CN108798738B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810980382.7A Active CN108798738B (en) | 2018-08-27 | 2018-08-27 | Movable suspension bone plate supporting structure for roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108798738B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707429A (en) * | 2019-03-07 | 2019-05-03 | 河南理工大学 | A kind of inclined shaft is used to press anti-down combined bracket |
| CN110410117A (en) * | 2019-08-05 | 2019-11-05 | 鲁维彬 | A kind of surrounding rock tunnel supporting construction |
| CN111101968A (en) * | 2019-12-29 | 2020-05-05 | 中铁二院工程集团有限责任公司 | Large karst cavity tunnel large deformation frame rock fall prevention structure and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707429A (en) * | 2019-03-07 | 2019-05-03 | 河南理工大学 | A kind of inclined shaft is used to press anti-down combined bracket |
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| CN111101968A (en) * | 2019-12-29 | 2020-05-05 | 中铁二院工程集团有限责任公司 | Large karst cavity tunnel large deformation frame rock fall prevention structure and construction method |
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| Publication number | Publication date |
|---|---|
| CN108798738B (en) | 2023-07-21 |
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