CN110219689A - A kind of underground driving face provisional protection bracket and its construction method - Google Patents
A kind of underground driving face provisional protection bracket and its construction method Download PDFInfo
- Publication number
- CN110219689A CN110219689A CN201910508534.8A CN201910508534A CN110219689A CN 110219689 A CN110219689 A CN 110219689A CN 201910508534 A CN201910508534 A CN 201910508534A CN 110219689 A CN110219689 A CN 110219689A
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- CN
- China
- Prior art keywords
- gib
- level
- group
- upper frame
- forestope
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
- E21D23/22—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms incorporated in mine caps
Abstract
The invention discloses a kind of underground driving face provisional protection bracket and its construction methods, including gib upper frame structure, horizontal hydraulic pressure device and vertical hydraulic device；Gib upper frame structure includes the multistage gib group along tunneling direction stacking arrangement；Every grade of gib group includes front longitudinal beam and floor side member, and vertical hydraulic device is correspondingly arranged at the lower section of front longitudinal beam and floor side member, and controls it accordingly and vertically go up and down；The front end of gib upper frame structure is additionally provided with forestope, and telescopic hydraulic column is connected with below forestope, and forestope its stretching angle under the effect of telescopic hydraulic column is adjustable；Gib upper frame superstructure is additionally provided with gib net.The underground driving face provisional protection bracket and its construction method, increase driving face, and forestope adjustable angle, prevent broken coal petrography from directly impacting vertical hydraulic device, play a protective role to vertical hydraulic device, are suitble to promote the use of in underground coal mine.
Description
Technical field
The invention belongs to the technical field of the comprehensive pick face gib of underground coal mine, in particular to a kind of underground driving face
Provisional protection bracket and its construction method.
Background technique
It is well known that mining depth is growing on and on the increase to coal demand, make geological environment aggravation.With
The increase of crustal stress, coal mine fully-mechanized digging machine engineering carry out in roof accident take place frequently, to smooth recovery of subterranean resources, avoid pushing up
The danger and disaster of slab supporting, staff will have shaft production safely and are the idea in day.Underground coal mine in order to adapt to production
Going on smoothly for demand and work in every, needs often to arrange driving face, and temporary support device supporting of today is limited,
Many processes are unable to parallel operations, and efficiency is mostly high not enough, affect driving speed, due to having for headwork space of planes
Limit, muck, supporting operation are difficult to efficiently carry out.In order to avoid empty top operation, increase in the personal safety for ensuring excavation operation personnel
The problems such as big headwork space of planes makes more process parallel operations, it is badly in need of one kind and is capable of providing quick gib, increases
Add working space to make more process parallel operations, improve level of security, increases driving speed, and do not influence bolting operation
Novel gib frame effectively increase driving face work so that it is horizontal to improve tunnelling Safety Control of Roof simultaneously
Good operating environment is created for operating personnel, and then improves working efficiency in space；It is badly in need of a kind of there is safety and stability, quickly
Efficiently, and can solve in tunnelling traditional simple protection supporting intensity it is low, area is small, low efficiency, timeliness and peace
The falsework for the problems such as property is poor entirely, makes the more drilling machine parallel operations for beating anchor pole.
Chinese invention patent " a kind of certainly mobile advanced gib hydraulic support for comprehensive pick " (patent No.:
CN201510138169.8 a kind of certainly mobile advanced gib hydraulic support for comprehensive pick, including advance support) are disclosed
Bracket and transition bracket；The advance support rack has two section extensible canopies and cantilever beam, it can be achieved that advance support；The mistake
It crosses bracket to be connected to after advance support rack, can rise and declines, advance timbering is pushed to move forward, realize bracket group oneself
It is mobile；Hydraulic support automation and mechanization degree are higher, may be implemented from mobile self-regulation, and circulation carries out the advanced branch of comprehensive pick
Shield；The operation of the bracket group is arranged by HYDRAULIC CONTROL SYSTEM by system, realizes the automation and mechanization of bracket group, mentions
Safety, reliability and driving speed during height driving.
Chinese invention patent " speedy drivage advance timbering " (patent No.: CN201410475830.X) discloses a kind of quick
Advance timbering is tunneled, solves the safety problem of existing driving face advance support comprising medial cradle group and lateral branch
Frame group, medial and lateral scaffold component do not include two brackets in left and right, and the left and right two stands of medial cradle group are set to outrigger group
Left and right two stands inside, crossbeam, the stringer of medial and lateral bracket group be alternately arranged, and the stringer front end of medial cradle group is chosen
Beam, push cylinder is respectively disposed on the left and right pedestal and crossbeam of inside and outside two pack supports group, and cross rail top and this pack support group are vertical
There is difference in height between beam bottom portion, cross rail top, which corresponds to, is arranged carrying roller at the position of another pack support group stringer bottom.The present invention is easy
Tunneling boring active roof supporting is realized in time, is conducive to the Safety Control of Roof of mine.
Although two above supporting structure can realize the certainly mobile of bracket, circulation carries out comprehensive pick and thinks supporting in advance,
The equipment by worker in lapping there is still a need for stepping down on staircase, and hand rest anchor net is laid with, and occupancy personnel are more, less important work
Time is long, and the operational security of operator is poor, and drivage efficiency is low.
Summary of the invention
The purpose of the present invention is in view of the above shortcomings of the prior art, provide a kind of underground driving face provisional protection branch
Frame and construction method increase headwork area using gib, improve driving speed, while not influencing suspension roof support work again
Industry.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of underground driving face provisional protection bracket, including gib upper frame structure, horizontal hydraulic pressure device and vertical liquid
Pressure device；It defines before direction to be tunneled is；
The gib upper frame structure includes the multistage gib group along tunneling direction stacking arrangement；
Every grade of gib group includes correspondence front longitudinal beam disposed in parallel and floor side member, and front longitudinal beam and floor side member is upper
Side is equipped at intervals with several crossbeams, and the head end portion of crossbeam and front longitudinal beam are hinged, and the terminal part and floor side member of crossbeam are hinged；Vertical liquid
Pressure device is correspondingly arranged at the lower section of front longitudinal beam and floor side member, and controls it accordingly and vertically go up and down；
The front longitudinal beam of gib groups at different levels is respectively positioned on the same side, and arranged for interval from back to front, and adjacent front longitudinal beam is by horizontal liquid
Pressure device connection；And the floor side member of gib groups at different levels also is located at the same side, and arranged for interval from back to front, it is vertical after adjacent
Beam is also connected by horizontal hydraulic pressure device；
Horizontal hydraulic pressure device drives corresponding gib groups at different levels flexible along tunneling direction；
The front end of the gib upper frame structure is also hingedly equipped with forestope, and is also connected with to be equipped with below forestope and stretch
Hydraulic column, the other end of telescopic hydraulic column and the front end of gib upper frame structure are hinged；Forestope is made in telescopic hydraulic column
It is adjustable with its lower stretching angle；
The gib upper frame superstructure is additionally provided with gib net.
It is described multistage gib group be set as three-level, be successively set as from front to back along tunneling direction three-level gib group,
Second level gib group and level-one gib group；
The horizontal hydraulic pressure device includes first level hydraulic device and the second horizontal hydraulic pressure device, and first level hydraulic device
Between level-one gib group and two gib groups, the second horizontal hydraulic pressure device is set to second level gib group and three and faces
When supporting group between.
It is also connected with below the vertical hydraulic device and sets support base.
The construction method of the underground driving face provisional protection bracket, the specific steps are as follows:
1) temporary support device is put in place in driving face, and is controlled and is connected by hydraulic tube with development machine；
2) telescopic hydraulic column is controlled, the stretching angle of forestope is adjusted, keeps forestope downward；
3) second level gib group and the corresponding vertical hydraulic device of three-level gib group are adjusted, it is made to climb away ground
Face props up second level gib group and three-level temporarily then to the corresponding vertical hydraulic device of lower fine tuning level-one gib group
The corresponding crossbeam decline of shield group is detached from top tunnel；
4) the respective horizontal hydraulic device between level-one gib group and second level gib group is adjusted, it is pushed ahead；With
It is raised above the crossbeam of second level gib group afterwards, it is made to be supported in back, and adjusts corresponding vertical hydraulic dress downwards
It sets and is supported in roadway floor；
5) the respective horizontal hydraulic device between second level gib group and three-level gib group is adjusted, it is pushed ahead；With
It is raised above the crossbeam of three-level gib group afterwards, it is made to be supported in back, and adjusts corresponding vertical hydraulic dress downwards
It sets and is supported in roadway floor, gib upper frame structure is fully deployed at this time；
6) development machine starts excavation operation, and development machine exits tunnel after the completion of driving, and suspension roof support personnel pass through gib top
Anchor pole is beaten to tunnel top in the gap of frame structure, and permanent support is fixed；After the completion of supporting, into next working cycles,
Repeat above step.
The beneficial effects of the present invention are:
(1) the underground driving face provisional protection bracket by gib upper frame structure and horizontal hydraulic pressure device and hangs down
The setting of straight hydraulic device, is effectively increased driving face, gib upper frame structure simple structure, and easy to operate,
Production cost is low, is suitble to promote the use of in actual underground coal mine.
(2) setting of multistage gib group, increases the space of driving face, can multiple process parallel operations,
Increase driving speed, while improving safety, nor affecting on bolting operation, creates good work for operating personnel
Industry environment, and then improve working efficiency.
(3) on the one hand forestope adjustable angle can prevent broken coal petrography from directly impacting vertical hydraulic in explosion treatment
Device, plays a protective role to vertical hydraulic device, on the other hand also increases effective working space, improves driving effect
Rate.
Detailed description of the invention
Fig. 1 is whole installation diagram of the invention；
Fig. 2 is the original state figure of gib upper frame structure；
Fig. 3 is the working state figure of gib upper frame structure；
Fig. 4 is the structural schematic diagram of every grade of gib group.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
The present invention provides a kind of underground driving face provisional protection bracket and construction methods, as shown in Figures 1 to 4.
The underground driving face provisional protection bracket, including gib upper frame structure 1, horizontal hydraulic pressure device 2 and hang down
Straight hydraulic device 3；The gib upper frame structure 1 includes the multistage gib group along tunneling direction stacking arrangement.
Every grade of gib group includes correspondence front longitudinal beam 11 disposed in parallel and floor side member 12, as shown in figure 4, and
The top of front longitudinal beam 11 and floor side member 12 is equipped at intervals with several crossbeams 13, and the head end portion of crossbeam 13 and front longitudinal beam 11 are hinged, horizontal
The terminal part and floor side member 12 of beam 13 are hinged；Vertical hydraulic device 3 is correspondingly arranged at the lower section of front longitudinal beam 11 and floor side member 12, and phase
The control answered its vertically go up and down.In order to improve stability of strutting system, the lower section of the vertical hydraulic device 3, which is also connected with, sets support base
31。
The front longitudinal beam 11 of gib groups at different levels is respectively positioned on the same side, and arranged for interval from back to front, adjacent front longitudinal beam 11
It is connected by horizontal hydraulic pressure device；And the floor side member equal 12 of gib groups at different levels also is located at the same side, and is spaced cloth from back to front
It sets, adjacent floor side member 12 is also connected by horizontal hydraulic pressure device；Horizontal hydraulic pressure device 2 drives corresponding gib group along driving side
To flexible.
In the present embodiment, multistage gib group is set as three-level, and it is interim to be successively set as level-one from back to front along tunneling direction
Supporting group 5, second level gib group 6 and three-level gib group 7.The horizontal hydraulic pressure device includes first level hydraulic device
21 and the second horizontal hydraulic pressure device 22, and first level hydraulic device 21 is set to level-one gib group 5 and two gib groups 6
Between, the second horizontal hydraulic pressure device 22 is set between second level gib group 6 and three gib groups 7.
The front end of the gib upper frame structure 1 is also hingedly equipped with forestope 4, and the lower section of forestope 4 is also connected with
Equipped with telescopic hydraulic column 41, the other end of telescopic hydraulic column 41 and the front end of gib upper frame structure 1 are hinged；Forestope 4
Its stretching angle is adjustable under the effect of telescopic hydraulic column 41；On the one hand 4 adjustable angle of forestope can prevent brokenly in explosion
Broken coal rock directly impacts vertical hydraulic device 3, plays a protective role to vertical hydraulic device 3, on the other hand also increases effectively
Working space, improve drivage efficiency.
In order to improve protection effect, it is additionally provided with gib net 9 above the gib upper frame structure 1, improves safety
Property.
It is described multistage gib group be set as three-level, be successively set as from back to front along tunneling direction level-one gib group 5,
Second level gib group 6 and three-level gib group 7.
The construction method of the underground driving face provisional protection bracket, the specific steps are as follows:
1) temporary support device is put in place in driving face, the two sides of temporary support device is made to be close to driving face
Tunnel two sides；Temporary support device and development machine 8 are controlled by hydraulic tube to be connected, and development machine 8 is controlled corresponding by hydraulic tube
Vertical hydraulic device 3 and horizontal hydraulic pressure device 2 move.
2) telescopic hydraulic column 41 is controlled, the stretching angle of forestope 4 is adjusted, keeps forestope 4 downward.
3) second level gib group 6 and the corresponding vertical hydraulic device 3 of three-level gib group 7 are adjusted, its rising is made
Being detached from ground makes second level gib group 6 and three then to the corresponding vertical hydraulic device 3 of lower fine tuning level-one gib group 5
The corresponding crossbeam decline of grade gib group 7 is detached from top tunnel, as shown in Figure 2.
4) the first level hydraulic device 2 between level-one gib group 5 and second level gib group 6 is adjusted, makes it forward
It promotes；It is then raised above the crossbeam 13 of level-one gib group 5 and second level gib group 6, it is made to be supported in back,
And corresponding vertical hydraulic device 3 is made to be supported in roadway floor.
5) the second horizontal hydraulic pressure device 2 between second level gib group 6 and three-level gib group 7 is adjusted, makes it forward
It promotes；It is then raised above the crossbeam 13 of three-level gib group 7, it is made to be supported in back, and makes corresponding vertical liquid
Pressure device 3 is supported in roadway floor, and gib upper frame structure is fully deployed at this time, as shown in Figure 3.
6) development machine starts excavation operation, and development machine 8 exits tunnel after the completion of driving, and suspension roof support personnel are by temporarily propping up
Anchor pole is beaten to tunnel top in the gap of overhead guard structure, and permanent support is fixed；After the completion of supporting, followed into next work
Ring repeats above step.
The words such as " first ", " second " have been used in this patent come if limiting components, those skilled in the art should
Know: the use of " first ", " second " is intended merely to facilitate the description present invention and simplifies description, and there is no special for above-mentioned word
Meaning.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement is both fallen within the scope of claimed invention.The claimed scope of the invention is by appended claims and is equal
Object defines.
In the description of the present invention, it is to be understood that, term "front", "rear", "left", "right", "center", etc. instructions
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is only that the present invention is described with simplified for ease of description,
Rather than indicate or imply signified device or element and must have a particular orientation, construct and operate for specific orientation, because
And it should not be understood as the limitation to present invention protection content.
Claims (4)
1. a kind of underground driving face provisional protection bracket, it is characterised in that: including gib upper frame structure, horizontal hydraulic pressure
Device and vertical hydraulic device；It defines before direction to be tunneled is；
The gib upper frame structure includes the multistage gib group along tunneling direction stacking arrangement；
Every grade of gib group includes correspondence front longitudinal beam disposed in parallel and floor side member, and front longitudinal beam and floor side member is upper
Side is equipped at intervals with several crossbeams, and the head end portion of crossbeam and front longitudinal beam are hinged, and the terminal part and floor side member of crossbeam are hinged；Vertical liquid
Pressure device is correspondingly arranged at the lower section of front longitudinal beam and floor side member, and controls it accordingly and vertically go up and down；
The front longitudinal beam of gib groups at different levels is respectively positioned on the same side, and arranged for interval from back to front, and adjacent front longitudinal beam is by horizontal liquid
Pressure device connection；And the floor side member of gib groups at different levels also is located at the same side, and arranged for interval from back to front, it is vertical after adjacent
Beam is also connected by horizontal hydraulic pressure device；
Horizontal hydraulic pressure device drives corresponding gib groups at different levels flexible along tunneling direction；
The front end of the gib upper frame structure is also hingedly equipped with forestope, and is also connected with to be equipped with below forestope and stretch
Hydraulic column, the other end of telescopic hydraulic column and the front end of gib upper frame structure are hinged；Forestope is made in telescopic hydraulic column
It is adjustable with its lower stretching angle；
The gib upper frame superstructure is additionally provided with gib net.
2. a kind of underground driving face provisional protection bracket according to claim 1, it is characterised in that: the multistage is faced
When supporting group be set as three-level, be successively set as three-level gib group, second level gib group and one from front to back along tunneling direction
Grade gib group；
The horizontal hydraulic pressure device includes first level hydraulic device and the second horizontal hydraulic pressure device, and first level hydraulic device
Between level-one gib group and two gib groups, the second horizontal hydraulic pressure device is set to second level gib group and three and faces
When supporting group between.
3. a kind of underground driving face provisional protection bracket according to claim 3, it is characterised in that: the vertical liquid
It is also connected with below pressure device and sets support base.
4. a kind of construction method of underground driving face provisional protection bracket, which is characterized in that specific step is as follows:
1) temporary support device is put in place in driving face, and is controlled and is connected by hydraulic tube with development machine；
2) telescopic hydraulic column is controlled, the stretching angle of forestope is adjusted, keeps forestope downward；
3) second level gib group and the corresponding vertical hydraulic device of three-level gib group are adjusted, it is made to climb away ground
Face props up second level gib group and three-level temporarily then to the corresponding vertical hydraulic device of lower fine tuning level-one gib group
The corresponding crossbeam decline of shield group is detached from top tunnel；
4) the respective horizontal hydraulic device between level-one gib group and second level gib group is adjusted, it is pushed ahead；With
It is raised above the crossbeam of second level gib group afterwards, it is made to be supported in back, and adjusts corresponding vertical hydraulic dress downwards
It sets and is supported in roadway floor；
5) the respective horizontal hydraulic device between second level gib group and three-level gib group is adjusted, it is pushed ahead；With
It is raised above the crossbeam of three-level gib group afterwards, it is made to be supported in back, and adjusts corresponding vertical hydraulic dress downwards
It sets and is supported in roadway floor, gib upper frame structure is fully deployed at this time；
6) development machine starts excavation operation, and development machine exits tunnel after the completion of driving, and suspension roof support personnel pass through gib top
Anchor pole is beaten to tunnel top in the gap of frame structure, and permanent support is fixed；After the completion of supporting, into next working cycles,
Repeat above step.
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|---|---|---|---|
| CN201910508534.8A CN110219689A (en) | 2019-06-13 | 2019-06-13 | A kind of underground driving face provisional protection bracket and its construction method |
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| CN201910508534.8A CN110219689A (en) | 2019-06-13 | 2019-06-13 | A kind of underground driving face provisional protection bracket and its construction method |
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| CN106703856A (en) * | 2017-03-20 | 2017-05-24 | 张路征 | Shed-style step forward combination support with multi-drill |
| CN206608198U (en) * | 2017-03-20 | 2017-11-03 | 张路征 | A kind of canopy formula with gang drill is taken a step sectional shelf-unit |
| CN108506034A (en) * | 2018-03-20 | 2018-09-07 | 郑州合新科技有限公司 | Circulatory self-moving formula lame advanced supporting hydraulic support |
| CN207999275U (en) * | 2018-03-30 | 2018-10-23 | 焦作大学 | A kind of automatic moving type support bracket |
| CN109578040A (en) * | 2018-11-29 | 2019-04-05 | 李信斌 | Driving gib equipment with guide support |
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Application publication date: 20190910 |