CN106677813A - Novel temporary supporting device for coal mine roadway comprehensive digging face - Google Patents
Novel temporary supporting device for coal mine roadway comprehensive digging face Download PDFInfo
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- CN106677813A CN106677813A CN201611264544.4A CN201611264544A CN106677813A CN 106677813 A CN106677813 A CN 106677813A CN 201611264544 A CN201611264544 A CN 201611264544A CN 106677813 A CN106677813 A CN 106677813A
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 80
- 239000003245 coal Substances 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000005641 tunneling Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000003818 cinder Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- E21D23/0445—Extensions of the base member supporting the conveyor
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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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- 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)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the technical field of coal mine down-hole comprehensive digging face temporary supporting, in particular to a novel temporary supporting device for a coal mine roadway comprehensive digging face. The novel temporary supporting device comprises a left supporting mechanism, a right supporting mechanism, a front supporting leg, a rear supporting leg, a front beam and a telescopic beam. The left supporting mechanism and the right supporting mechanism are integrally connected with a pin shaft through connecting transverse beams, the front beam and a protecting head on beam, and the structure of the left supporting mechanism is the same with that of the right supporting mechanism, and the left supporting mechanism and the right supporting mechanism comprise a base, a guiding beam, vertical pillars and top beams. The vertical pillars are fixed to the base, the top beams are arranged at the tops of the vertical pillars, and a sliding rail is arranged in the base. The front supporting leg and the rear supporting leg are integrally connected through the sliding rail. A supporting top longitudinal beam is arranged on the connecting transverse beams, the connecting transverse beams are fixed to the top beams, and the supporting top longitudinal beam is connected with the telescopic beam through a telescopic oil cylinder. The telescopic beam and the front beam are connected through a front beam jack, the front beam and the protecting head on beam are integrally connected through a protecting head on beam jack, and a pushing oil cylinder is arranged between the base and the front supporting leg. According to the novel temporary supporting device for the coal mine roadway comprehensive digging face, the supporting procedures are simplified.
Description
Technical field
The present invention relates to the technical field of the comprehensive pick face gib of underground coal mine, specifically a kind of new colliery Zong Jue faces
The temporary support device in tunnel.
Background technology
Before the development of speedy drivage temporary shoring bracket, what most domestic underground coal mine driving face was commonly used faces
When supporting have:One is hanging ring tube-through type forestope gib;Two is vehicle-mounted temporary support device for development machine;Three is using many
Row's hydraulic prop increases intensity I-steel capplce method of support etc..Although these modes alleviate heading driver to a certain extent
Met head on as face the pressure of supporting, improve the supporting situation of working face, but also there are many deficiencies in actual use
Place, is still present larger hidden danger in safety.The safety problem of temporary support for drivage face is that long-standing problem colliery is quickly dug
Enter safety in production technical barrier for many years, because top board can not in time obtain effective supporting after tunnelling, often cause
Top board falls cash casualty accident, it is impossible to give full play to the efficiency of high-performance development machine.
(1)Hanging ring tube-through type forestope gib
Hanging ring wears formula forestope gib, is mainly made up of hanging ring and forestope, and ring is fixed on top board by anchor pole, preceding
Beam is visited in suspension ring, rear supporting roof is leant out, its subject matter:1. steel and top board are stopped into the real back of the body tightly using half round timber and timber wedge,
There is no setting load, there is great potential safety hazard;2. forestope and top board are point or linear contact lay, it is impossible to which empty top zone is carried out comprehensively
Effective support, as run into roof cracking using effect if it is worse;3. operating process complexity is, it is necessary to artificial mobile, and labour intensity is big,
Gib speed is slow, efficiency is low;4. bolting with wire mesh mode operator in lapping has to enter into empty top zone operation, exists greatly
Potential safety hazard.
(2)Vehicle-mounted temporary support device for development machine
Device is mainly made up of left and right base, left and right frame, left and right rollover stand, left and right folding arm frame and upper frame beam, installed in driving
Machine front middle part.When development machine is normally tunneled, the folding device is contracted in cut reductor back, do not disturb development machine motion and
Cut operation function;By the position for operating the hydraulic control valve of supporting folding stand to control folding stand when needing supporting, make folding
Superimposed is stretched out and is supported in top board, completes branch protective function.Its major defect:1. supporting area is small, it is impossible to the complete exposed top of supporting
Plate;, there is great potential safety hazard in 2. operating personnel's still operation under sky top during bolting with wire mesh;3. the device is adapted to top board
Property is poor.Roof and floor fluctuating is run into during driving, tunnel step-down, airborne supporting can not put to good use open completely, not reach setting load, deposit
In larger potential safety hazard.
(3)Multiple rows of hydraulic prop increases intensity I-steel capplce method of support
It is first rapid after machine pick to use hydraulic single prop by empty top zone firm supporting, then tapped again, treat Chu Liwan
After falling cash living, float stone, rapidly with monomer column by I-steel and steel wire top to top straight portion, network, protect top board.Install
At least three people coordinate during every hydraulic prop carries out gib, and labor strength is big, high cost, and prop drawing is dangerous
Greatly, there is potential safety hazard, and influence personnel and equipment to pass through, supporting effect and safety guarantee are undesirable.
The content of the invention
The present invention is in order to solve the above mentioned problem that existing underground coal mine gib is present, there is provided a kind of new colliery
The temporary support device in comprehensive pick face tunnel.
The present invention takes following technical scheme:A kind of temporary support device in new colliery Zong Juemian tunnels, including a left side
Supporting mechanism, right supporting mechanism, front support leg, rear support leg, front-axle beam and extensible canopy, left supporting mechanism and right supporting mechanism pass through
Connecting cross beam, front-axle beam, shield meet head on beam and bearing pin is connected as a single entity, and described left supporting mechanism is identical with right supporting mechanism structure, bag
Base, guide beam, column and back timber are included, column is fixed with base, column top is provided with back timber, slide rail is provided with base, preceding
Supporting leg and rear support leg are connected as one by slide rail, and support longeron is arranged on connecting cross beam, and connecting cross beam is fixed on top
Liang Shang, support longeron is connected with extensible canopy by telescopic oil cylinder, and extensible canopy is connected with front-axle beam by front-axle beam jack, front-axle beam with shield
Beam of meeting head on is connected as a single entity by shield beam jack of meeting head on, and passage oil cylinder is respectively disposed between base and front support leg.Front support
Leg and rear support leg, connect as one to form lift bottom and take a step walking mechanism by slide rail, passage oil cylinder and base.
Described extensible canopy forms telescoping mechanism, stroke and the tunnel of telescopic oil cylinder with support longeron by telescopic oil cylinder
Anchor pole array pitch is consistent, is capable of achieving the gib of the super previous array pitch in comprehensive pick face tunnel.
The front end of described front-axle beam is respectively provided with steel band groove with middle part, and the steel band groove of front end can stretch receipts by front-axle beam jack
Realize that steel band is laid with the mechanization of piece net.
Also include auxiliary support mechanism, described auxiliary support mechanism is connected as a single entity by bearing pin with rear support leg, when auxiliary
After helping supporting mechanism support, a strong point for stabilization can be provided for temporary support device.
Described base is provided with engaging lug, can connect tuningout oil cylinder by bearing pin, and comprehensive pick face temporary support device is entered
Row tuningout;Also mutual side board can be connected, prevents the coal cinder of tunnel wall caving from falling into inside comprehensive pick face temporary support device.
Described passage oil cylinder is arranged in the inside of base, simple and compact for structure.
The present invention is straddled on development machine, and when development machine is tunneled forward, temporary support device need to first withdraw shield and meet head on
Beam, is moved forward followed by development machine, and immediate support is carried out to top board.When temporary support device moves forward, support before and after receiving first
The oil cylinder of leg makes its liftoff, and stretching passage oil cylinder moves forward the lift bottom slideway of base before walking mechanism of taking a step, and receiving column makes support
Top longeron departs from top board, and stretching the oil cylinder of front and rear supporting leg makes its support ground and lift base, and the oil cylinder for stretching auxiliary support mechanism makes
Its roof supporting, receiving passage oil cylinder makes left and right supporting mechanism be moved forward along slide rail, and the oil cylinder of supporting leg makes base before and after receiving
Ground connection, stretching column makes support longeron roof supporting;Development machine tunnels a row further along, and receiving column makes support longeron depart from top board,
Stretching out telescopic oil cylinder makes one array pitch of front-axle beam advance support, and stretching column makes support longeron roof supporting.Before receipts front-axle beam jack makes
The beam bottom, puts anchor net and steel band, and stretching front-axle beam jack makes front-axle beam connect top.Stretch shield to meet head on beam jack, its supporting is met head on, prevent
The piece coal met head on drops.
It is of the invention to change traditional support pattern, easily realize tunneling boring active roof supporting in time, be conducive to the top of mine
Plate safety management.
(1)Lift bottom is taken a step walking mechanism, is connected with supporting mechanism by passage oil cylinder and is realized the advanced in years of temporary support device
Step formula is moved certainly.
(2)Auxiliary support mechanism, when supporting mechanism moves forward, can provide a strong point for stabilization for it, it is ensured that
Temporary support device is stable to take a step forward.
(3)Extensible canopy forms telescoping mechanism with support longeron by telescopic oil cylinder, realizes the advance support in tunnel, and can be real
Now tunnel two rows and move a temporary support device, simplify gib operation, reduce and move sortie number.
(4)Two steel band grooves are disposed with front-axle beam, the laying anchor net and upper steel band of mechanization is capable of achieving, work is reduced strong
Degree, it is ensured that the safety of personnel.
(5)Temporary support device front end is provided with shield and meets head on beam, when manually permanent support is carried out to top board, can prevent from meeting head on
Piece coal drops, it is ensured that personal security.
(6)Supporting mechanism uses sliding track mechanism, it is ensured that support vertical and horizontal stability, bears and transmit outer load, protects
Hold the integral rigidity of support.And base has larger contact area, a reliable strong point can be formed and improve support
Stability.
(7)Freestanding hydraulic system, hydraulic system easy to connect safety, people high to driving face scene adaptability
Member is short in the danger zone set-up time, greatly improves personnel safety.
(8)Large span body supports mechanism, realizes and comprehensive pick equipment Rational Matching.With development machine independently working, do not do mutually
Relate to, dependable performance, move frame it is convenient and reliable rapidly.Realize the driving --- rank of the permanent supporting of non-support --- gib ---
Take over and cross, be capable of achieving the operating type of continuous driving and continuous supporting.
The present invention has following beneficial effect:The tunneling boring active roof supporting to top board is capable of achieving, simplifies supporting journey
Sequence, realizes the mode of working continuously that driving, gib and permanent Anchor Care are synchronously carried out, it is to avoid operating personnel makees under sky top
The potential safety hazard of industry, is conducive to the Safety Control of Roof of colliery headwork, is that comprehensive pick face creates safe working environment;Carry
Working in driving face of coal mine mechanization supporting work degree high, greatly improves driving speed and operating efficiency, reduces excavation cost and work
The labour intensity of industry personnel, alleviate digging continue anxiety passive situation.
The present invention creates reliable, flexible supporting condition for driving face safety and high efficiency, to improving development end
Mechanical mining technique, improves driving speed and production efficiency is significant.
Brief description of the drawings
Fig. 1 is schematic front view of the invention;
Fig. 2 is schematic top plan view of the invention;
Fig. 3 is schematic side view of the invention;
In figure:1. inner support group, 2. support arm group, 3. support arm group outrigger, 4. outrigger group support beam, 5. support arm group
Back timber, 6. inner support group support beam, 7. inner support group back timber, 8. column, 9. base, 10. front rod, 11. caving shields, 12.
Back link, 13. inner support group outriggers, 14. passage oil cylinders, 15. outrigger jack.
Specific embodiment
Specific embodiment of the invention is described further with reference to accompanying drawing.
New Coal Mine tunnel Zong Jue faces temporary support device is reasonably supporting with development machine, to the intimate nothing of back repeatedly
Support, can in time realize tunneling boring supporting, simplify supporting program, realize driving, gib and the same stepping of permanent Anchor Care
Capable mode of working continuously, it is to avoid operating personnel improves mechanization supporting work degree in the operation of empty top zone domain, reduces work
Industry personnel labor intensity, improves drivage efficiency, is that operating personnel has safely provided powerful guarantee.New Coal Mine tunnel Zong Jue faces
Temporary support device it is main by left and right supporting mechanism by crossbeam, extensible canopy, front-axle beam, shield meet head on beam, lift bottom and take a step walking mechanism
And auxiliary support mechanism is hinged composition.Front-axle beam is provided with steel band groove and can realize to anchor in the advance support of top board and mechanization
Net and steel band.Take a step walking mechanism, base and auxiliary support mechanism of lift bottom mutually supports roof and floor, so as to enable mutually form one
The individual reliable strong point, realizes taking a step from shifting for temporary support device.
Specifically, New Coal Mine tunnel Zong Jue faces temporary support device, mainly including left supporting mechanism 1, right supporting machine
Structure 2, front support leg 3, rear support leg 8, auxiliary support mechanism 5, front-axle beam 10 and extensible canopy 13.Left supporting mechanism 1 and right supporting machine
Structure 2 meets head on beam 9 by connecting cross beam 20, front-axle beam 10, shield and bearing pin is connected as a single entity.Described left supporting mechanism 1 and right supporting machine
Structure 2 includes base 4, guide beam 15, column 19, left back timber 16 and right back timber 17.Front support leg 3 and rear support leg 8 pass through slide rail 7
Connect as one.Support longeron 18 is arranged on connecting cross beam 20, and is connected as a single entity by telescopic oil cylinder 14 with extensible canopy 13.Stretch
Contracting beam 13 is connected as a single entity with front-axle beam 10 by front-axle beam jack 12.Front-axle beam 10 and shield beam 9 of meeting head on are met head on beam jack 11 by shield
It is connected as a single entity.Passage oil cylinder 6 is respectively disposed between left and right base 4 and front support leg.
Described front support leg 3 and rear support leg 8, connects as one to form lift by slide rail 7, passage oil cylinder 6 and base 4
Bottom is taken a step walking mechanism.
Described extensible canopy 13 forms telescoping mechanism, the stroke of telescopic oil cylinder 14 with support longeron 18 by telescopic oil cylinder 14
Anchor pole array pitch with tunnel is consistent, is capable of achieving the gib of the super previous array pitch in comprehensive pick face tunnel.
The front end of described front-axle beam 10 is respectively provided with steel band groove with middle part, and the steel band groove of front end can be by front-axle beam jack 12
Stretch to receive and realize that steel band is laid with the mechanization of piece net.
Described auxiliary support mechanism 5 is connected as a single entity by the take a step rear support leg 8 of walking mechanism of bearing pin and lift bottom, when auxiliary
After helping the support of supporting mechanism 5, a strong point for stabilization can be provided for temporary support device.
Described base 4 is provided with engaging lug 21, tuningout oil cylinder can be connected by bearing pin, to comprehensive pick face temporary support device
Carry out tuningout;Also mutual side board can be connected, prevents the coal cinder of tunnel wall caving from falling into inside comprehensive pick face temporary support device.
Described passage oil cylinder 6 arranges the inside with the base 4 of left and right supporting mechanism 1,2, simple and compact for structure.
The present invention is capable of achieving to the intimate without supporting repeatedly of back, and its compact conformation, operation is flexible, can carry significantly
Driving speed high and operating efficiency.With fully-mechanized digging machine Rational Matching, it is simple to operate, have enough supporting intensities, simplify supporting program,
Reduce move sortie number, realize the top board of tunneling boring supporting driving face empty top zone, it is ensured that the operating personnel of driving face and
Development machine is in a safe condition;The mode of working continuously that driving, gib and permanent Anchor Care are synchronously carried out is realized, is reduced former
Begin to come and go the gib time;The original labour for shouldering fortune, removing monomer of worker is reduced, realizes that driving face mechanization is propped up temporarily
Shield, reduces labor strength.
Claims (6)
1. a kind of temporary support device in new colliery Zong Juemian tunnels, it is characterised in that:Including left supporting mechanism(1), it is right
Supporting mechanism(2), front support leg(3), rear support leg(8), front-axle beam(10)And extensible canopy(13), left supporting mechanism(1)With right branch
Shield mechanism(2)By connecting cross beam(20), front-axle beam(10), shield meets head on beam(9)It is connected as a single entity with bearing pin, described left supporting mechanism
(1)With right supporting mechanism(2)Structure is identical, including base(4), guide beam(15), column(19)And back timber, base(4)It is upper solid
Surely there is column(19), column(19)Top is provided with back timber, base(4)Inside it is provided with slide rail(7), front support leg(3)And rear support leg
(8)By slide rail(7)Connect as one, support longeron(18)It is arranged in connecting cross beam(20)On, connecting cross beam(20)It is fixed on
On back timber, support longeron(18)With extensible canopy(13)By telescopic oil cylinder(14)Connection, extensible canopy(13)With front-axle beam(10)Pass through
Front-axle beam jack(12)Connection, front-axle beam(10)Met head on beam with shield(9)By protecting beam jack of meeting head on(11)It is connected as a single entity, base
(4)With front support leg(3)Between be respectively disposed with passage oil cylinder(6).
2. New Coal Mine tunnel Zong Jue faces according to claim 1 temporary support device, it is characterised in that:Described is flexible
Beam(13)With support longeron(18)By telescopic oil cylinder(14)Form telescoping mechanism, telescopic oil cylinder(14)Stroke and tunnel anchor
Bar array pitch is consistent.
3. New Coal Mine tunnel Zong Jue faces according to claim 1 temporary support device, it is characterised in that:Described front-axle beam
(10)Front end and middle part be respectively provided with steel band groove.
4. New Coal Mine tunnel Zong Jue faces according to claim 1 and 2 temporary support device, it is characterised in that:Also include
Auxiliary support mechanism(5), described auxiliary support mechanism(5)By bearing pin and rear support leg(8)It is connected as a single entity.
5. New Coal Mine tunnel Zong Jue faces according to claim 1 and 2 temporary support device, it is characterised in that:Described
Base(4)It is provided with engaging lug(21).
6. New Coal Mine tunnel Zong Jue faces according to claim 1 and 2 temporary support device, it is characterised in that:Described
Passage oil cylinder(6)It is arranged in base(4)Inside.
Priority Applications (1)
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CN201611264544.4A CN106677813A (en) | 2016-12-30 | 2016-12-30 | Novel temporary supporting device for coal mine roadway comprehensive digging face |
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CN201611264544.4A CN106677813A (en) | 2016-12-30 | 2016-12-30 | Novel temporary supporting device for coal mine roadway comprehensive digging face |
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CN201611264544.4A Pending CN106677813A (en) | 2016-12-30 | 2016-12-30 | Novel temporary supporting device for coal mine roadway comprehensive digging face |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107989607A (en) * | 2017-12-27 | 2018-05-04 | 中国煤炭科工集团太原研究院有限公司 | Rectangular shaped roadways driving moves into covering device certainly without support repeatedly |
CN109339845A (en) * | 2018-12-24 | 2019-02-15 | 永城煤电控股集团有限公司 | A kind of automatic moving type advance timbering |
CN110159327A (en) * | 2019-07-10 | 2019-08-23 | 河南理工大学 | Dig the continuous temporary support device for drivage in tunnel and method of anchor separation |
CN110259497A (en) * | 2018-11-24 | 2019-09-20 | 张国宁 | Gun diging face caterpillar band mobile Foldable hydraulic forestope |
CN110894789A (en) * | 2019-12-12 | 2020-03-20 | 抚顺综掘装备制造有限公司 | Shed-erecting type onboard temporary supporting device |
CN111810204A (en) * | 2020-06-18 | 2020-10-23 | 中铁十六局集团地铁工程有限公司 | Fine adjustment anchorage device and method capable of compensating prestress loss of water-rich sand layer |
CN116136179A (en) * | 2023-04-03 | 2023-05-19 | 江西蓝翔重工有限公司 | Disconnect-type support platform |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107989607A (en) * | 2017-12-27 | 2018-05-04 | 中国煤炭科工集团太原研究院有限公司 | Rectangular shaped roadways driving moves into covering device certainly without support repeatedly |
CN110259497A (en) * | 2018-11-24 | 2019-09-20 | 张国宁 | Gun diging face caterpillar band mobile Foldable hydraulic forestope |
CN109339845A (en) * | 2018-12-24 | 2019-02-15 | 永城煤电控股集团有限公司 | A kind of automatic moving type advance timbering |
CN109339845B (en) * | 2018-12-24 | 2024-03-29 | 永城煤电控股集团有限公司 | Self-moving type advanced support |
CN110159327A (en) * | 2019-07-10 | 2019-08-23 | 河南理工大学 | Dig the continuous temporary support device for drivage in tunnel and method of anchor separation |
CN110159327B (en) * | 2019-07-10 | 2023-08-22 | 河南理工大学 | Continuous tunneling temporary support device and method for tunnel with separated tunneling and anchoring |
CN110894789A (en) * | 2019-12-12 | 2020-03-20 | 抚顺综掘装备制造有限公司 | Shed-erecting type onboard temporary supporting device |
CN111810204A (en) * | 2020-06-18 | 2020-10-23 | 中铁十六局集团地铁工程有限公司 | Fine adjustment anchorage device and method capable of compensating prestress loss of water-rich sand layer |
CN116136179A (en) * | 2023-04-03 | 2023-05-19 | 江西蓝翔重工有限公司 | Disconnect-type support platform |
CN116136179B (en) * | 2023-04-03 | 2023-11-21 | 江西蓝翔重工有限公司 | Disconnect-type support platform |
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Application publication date: 20170517 |