CN110388224A - A kind of step type support system for arched tunnel driving - Google Patents
A kind of step type support system for arched tunnel driving Download PDFInfo
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- CN110388224A CN110388224A CN201910778878.0A CN201910778878A CN110388224A CN 110388224 A CN110388224 A CN 110388224A CN 201910778878 A CN201910778878 A CN 201910778878A CN 110388224 A CN110388224 A CN 110388224A
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- shaped beam
- oil cylinder
- step type
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- 230000000694 effects Effects 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 4
- 230000008093 supporting effect Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 10
- 239000003245 coal Substances 0.000 description 8
- 230000005641 tunneling Effects 0.000 description 5
- 239000000725 suspension Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Classifications
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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
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
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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
- E21D23/04—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
- E21D23/20—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms for sequential movement, e.g. one behind the other
Abstract
The invention belongs to mining activities equipment technical fields, are related to a kind of step type support system for arched tunnel driving.The system, including U-shaped beam group, beam group and oil cylinder group, U-shaped beam group include the first U-shaped beam, the second U-shaped beam, the U-shaped beam of third and the 4th U-shaped beam, and beam group includes 2n beam, and beam includes front beam and back end beam, and oil cylinder group includes passage oil cylinder and support cylinder.The system, by can the mobile gib mode of step type, effective support working face meets head on, top plate and side wall, improves the driving speed in tunnel, safe and reliable, convenient for operation, practical.
Description
Technical field
The invention belongs to mining activities equipment technical fields, are related to a kind of step type supporting system for arched tunnel driving
System.
Background technique
With the continuous development of science and technology, the relevant devices such as the driving of coal mine, coal mining, transport have been achieved with machinery
Change, and equipment is increasing using power, the speed of tunnelling is also getting faster, and effectively increases the production of coal mining enterprise
Amount.
Currently, most widely used tunneling method is using development machine digging laneway, specifically, being carried using development machine
Advance support carries out supporting to the tunnel newly tunneled；The side that this support pattern tunnels tunneling process frequently with half section
Formula；That is, first tunneled using top of the development machine to arched tunnel, when every driving 0.8m~1m, development machine front end it is interim
Supporting will carry out supporting to new pick tunnel, and development machine is shut down and exited later；Operating personnel's manual handling jumbolter simultaneously makes
Its station carries out suspension roof support to top plate on the newly coal seam of pick tunnel lower part, using jumbolter；After supporting, development machine after
Continuous operation, continues to tunnel, while clearing up long-pending coal to the coal seam of tunnel lower part, then carries out suspension roof support to tunnel side wall, complete
It works at tunnelling.However, there are many defects for such tunneling method: operating personnel carries jumbolter and carries out suspension roof support
When, labor intensity is high, workload is big, consuming time is long, so that development machine is also required to wait the long period；Meanwhile support pattern
Supporting limited area, cause tunnel repeat tunnel, larger workload, working efficiency is lower, has seriously affected driving speed.
Other than the mode of above-mentioned half section driving, also supporting can be carried out to tunnel by falsework and realize driving；
Specifically, being currently used for the stepping self-moving type bracket of driving face, it is mainly used for the gib of rectangular shaped roadways.And such branch
Frame occupied space is more, supporting area is smaller, can only to the top plate in tunnel carry out supporting, can not useful effect in arched tunnel
It meets head on and side wall is easily caving and injures by a crashing object so that development machine, in operation process, tunnel side wall is unable to get effective support
Operating personnel has seriously affected the normal driving in tunnel, and increase driving it is also desirable to repeat to tunnel tunnel
Expense reduces drivage efficiency.
Summary of the invention
The purpose of the present invention is to provide a kind of step type support systems for arched tunnel driving, can step type shifting
It is dynamic, it meets head on to driving face, top plate and side wall progress effective support, improves the driving speed in tunnel.
The technical solution that the present invention solves above-mentioned technical problem is as follows.
A kind of step type support system for arched tunnel driving, including U-shaped beam group, beam group and oil cylinder group；U-shaped beam
Group includes the first U-shaped beam, the second U-shaped beam, the U-shaped beam of third and the 4th U-shaped beam being arranged successively；Beam group includes 2n beam,
Beam includes the front beam and back end beam being hinged；Beam group, n beam therein be A beam group, and by front beam with
The mode of first U-shaped beam connection, back end beam and the U-shaped beam connection of third is connect with U-shaped beam group, and n beam in addition is B beam
Group, and connect front beam with the second U-shaped beam, connect with U-shaped beam group by way of back end beam is connect with the 4th U-shaped beam；N be >=
2 integer；Oil cylinder group includes passage oil cylinder and support cylinder；One end of passage oil cylinder is connect with the second U-shaped beam, the other end and
Three U-shaped beam connections；The quantity of support cylinder be 8, one end of support cylinder be respectively arranged in the first U-shaped beam, the second U-shaped beam,
Two ends of the U-shaped beam of third and the 4th U-shaped beam.Through the above technical solutions, can realize that the step type of the support system advances,
And effective support is carried out to the top plate in tunnel.
Further, the step type support system, further includes apron plate, and oil cylinder group further includes the first connection oil cylinder；Preceding shield
The quantity of plate is n, and one end is hingedly connected to the end of A beam group front beam, and inner surface passes through the first connection oil respectively
Cylinder is connected to the inner surface of corresponding front beam.By the way that apron plate is arranged, meet head on to carry out effective support to working face.
Further, the step type support system, further includes side protection unit, and side protection unit includes the side guard plate being hinged
And attachment base；Oil cylinder group further includes the second connection oil cylinder；The quantity of side protection unit is 2m, and its attachment base is hingedly connected to position
In in A beam group/B beam group beam of U-shaped beam group two sides, side guard plate passes through the second connection oil cylinder respectively and is connected to correspondence
Beam on；The integer that m is >=1.By the way that side protection unit is arranged, effective support is carried out to the side wall in tunnel.
Further, the first U-shaped beam, the second U-shaped beam, the U-shaped beam of third and the 4th U-shaped beam are the U-shaped opening knot of arc
Structure；By the upper surface of arc, more preferably to the supporting effect of arched tunnel.
Further, the size of n is 4,5 or 6, and the n beam difference in the n beam and B beam group in A beam group
Successively it is installed on the outer surface of U-shaped beam group；Further, the size of m is 2, and the quantity of side protection unit is 4 and installs respectively
In on the front beam and back end beam of A beam group/B beam group beam；Further, the quantity of passage oil cylinder is 2.By setting
Appropriate number of beam and side protection unit are set, makes that the processing cost of the support system is lower, operational process is more smooth.
Step type support system of the present invention for arched tunnel driving have the beneficial effect that, by can step type it is mobile
Gib mode carries out supporting to the tunneling process in tunnel；Effective support working face meets head on, the top plate above development machine and side
Wall enables development machine disposably to carry out tunneling boring tunnelling, improves the driving speed in tunnel, meanwhile, effectively avoid side
Wall is caving the personal injury to operating personnel and the adverse effect to headwork；Effectively increase what development machine was met head on to working face
Safe space guarantees the safety of operating personnel；It is applied widely suitable for the effective support of tunnel, especially arched tunnel,
And entire Bracing Process is completed using hydraulic cylinder system, securely and reliably, is convenient for operation, is practical, having good economy
Benefit.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the present invention for the step type support system of arched tunnel driving；
Fig. 2 is side structure schematic view of the present invention for the step type support system of arched tunnel driving；
Fig. 3 is overlooking structure diagram of the present invention for the step type support system of arched tunnel driving；
Fig. 4 is schematic perspective view of the present invention for the step type support system of arched tunnel driving；
Fig. 5 is use state diagram of the present invention for the step type support system of arched tunnel driving.
Coding in figure be respectively as follows: the first U-shaped beam 1-1, the second U-shaped beam 1-2, the U-shaped beam 1-3 of third, the 4th U-shaped beam 1-4,
Beam 2, front beam 2-1, back end beam 2-2, passage oil cylinder 3-1, support cylinder 3-2, the first connection oil cylinder 3-3, the second connection oil
Cylinder 3-4, apron plate 4, side protection unit 5, side guard plate 5-1, attachment base 5-2, tunnel 6.
Specific embodiment
As shown in Figures 1 to 4, a kind of step type support system for arched tunnel driving, including U-shaped beam group, beam
Group, oil cylinder group, apron plate 4, side protection unit 5.
U-shaped beam group includes the first U-shaped beam 1-1, the second U-shaped beam 1-2, the U-shaped beam 1-3 and the 4th of third that are arranged successively U-shaped
Beam 1-4, and the first U-shaped beam 1-1, the second U-shaped beam 1-2, the U-shaped U-shaped beam 1-4 of beam 1-3 and the 4th of third are the U-shaped opening of arc
Structure.
Beam group includes 10 beams 2, and beam 2 includes the front beam 2-1 and back end beam 2-2 being hinged；Beam group,
In 5 beams 2 be A beam group, and connect with the first U-shaped beam 1-1 by front beam 2-1, back end beam 2-2 and the U-shaped beam of third
The mode of 1-3 connection is connect with U-shaped beam group, and 5 beams 2 in addition are B beam group, and pass through the U-shaped beam of front beam 2-1 and second
1-2 connection, back end beam 2-2 are connect with the 4th U-shaped beam 1-4 mode connecting with U-shaped beam group；5 beams 2 and B in A beam group
5 beams 2 in beam group are successively installed on the outer surface of U-shaped beam group respectively.
Oil cylinder group includes passage oil cylinder 3-1, support cylinder 3-2, the first connection oil cylinder 3-3 and the second connection oil cylinder 3-4；It pushes away
The quantity for moving oil cylinder 3-1 is 2, and one end is connect with the second U-shaped beam 1-2, and the other end is connect with the U-shaped beam 1-3 of third；Support
The quantity of oil cylinder 3-2 is 8, and one end of support cylinder 3-2 is respectively arranged in the first U-shaped beam 1-1, the second U-shaped beam 1-2, the 3rd U
Two ends of the U-shaped beam 1-4 of type beam 1-3 and the 4th.
The quantity of apron plate 4 is 5, and one end is hingedly connected to the end of the front beam 2-1 of A beam group, inner surface
The inner surface of corresponding front beam 2-1 is connected to by the first connection oil cylinder 3-3 respectively.
Side protection unit 5 includes the side guard plate 5-1 and attachment base 5-2 being hinged；Attachment base 5-2 is hingedly connected to be located at U
In the beam 2 of the B beam group of type beam group two sides, side guard plate 5-1 passes through the second connection oil cylinder 3-4 respectively and is connected to corresponding beam
On 2；The quantity of side protection unit 5 is 4 and is respectively arranged on the front beam 2-1 and back end beam 2-2 of beam 2 of B beam group.
Step type support system of the present invention for arched tunnel driving is provided for the design feature of arched tunnel
Using U-shaped beam as the falsework of the automatic moving type of taking a step of main support, mainly meet head on driving face to development machine front
Top plate and side wall carry out supporting, cut the bracket mainly by hydraulic cylinder system drive, are development machine driver and other operations people
Member provides the Work places of safety.
The step type support system, the first U-shaped beam 1-1 and the U-shaped beam 1-3 of third are one group, the second U-shaped beam 1-2 and the 4th U
Type beam 1-4 is one group, beam 2 a total of 10, and 5 are one group, are divided into two groups of A, B, A beam group and the first U-shaped beam 1-1 and
The U-shaped beam 1-3 connection of third, B beam group are connect with the second U-shaped U-shaped beam 1-4 of beam 1-2 and the 4th, two ends of each U-shaped beam
It is respectively connected with support cylinder 3-2.
As shown in figure 5, when the support system carries out supporting in tunnel 6, that is, equipment in the process of running, the first U-shaped beam
The 1-1 and support cylinder 3-2 of the bottom third U-shaped beam 1-3 stretches out, and then A beam group is supported to carry out supporting to top plate, meanwhile, the
The two U-shaped beam 1-2 and support cylinder 3-2 of the 4th bottom U-shaped beam 1-4 are withdrawn, so that the unsupported power of B beam group；At this point, passage
Oil cylinder 3-1 stretches out, and the second U-shaped beam 1-2 is pushed to move forward, while driving the 4th U-shaped beam 1-4 to move forward by beam 2；Together
Sample, the support cylinder 3-2 of the second U-shaped beam 1-2 and the 4th bottom U-shaped beam 1-4 is stretched out and is supported, the first U-shaped beam 1-1 and third
The support cylinder 3-2 of the bottom U-shaped beam 1-3 is withdrawn, and passage oil cylinder 3-1 is withdrawn, and then the U-shaped beam 1-3 of third is pulled to move forward, together
When drive the first U-shaped beam 1-1 to move forward by beam, and then complete step type and move forward.
For arched tunnel, uses the U-shaped beam of arc for support, increased the contact of bracket with arched tunnel top plate
Face realizes the safety support to top plate.
It meets head on for driving face, is provided with apron plate 4；In the process of running, apron plate 4 is by the first connection oil cylinder 3-
3 oil cylinders control it and shrink and open；It is parallel with the beam 2 of bracket when apron plate 4 is withdrawn；It, can be tight when apron plate 4 is opened
Patch is met head on section, and then meets head on to carry out supporting to driving face, and the coal wall that prevents from meeting head on is caving；When 5 apron plates 4 are retracted to
At 45 °, cone can be formed, the utilization convenient for the linked network supporting of arched tunnel top plate, and the apron plate 4 effectively saves sky
Between, the safety and convenience of linked network supporting are also improved simultaneously.
It is easy the case where being caving for tunnel side wall, is provided with side protection unit 5；The side guard plate 5-1 of the side protection unit 5 is main
Supporting is carried out to tunnel side wall, the beam 2 to connect on U-shaped beam, by the second connection oil cylinder 3-4 driving, stretches it for fulcrum
Out or withdraw；When it is extended, it can be contacted with the side wall in tunnel, the effective support to side wall be realized, caused by preventing it to be caving
Casualties；It when its withdrawal, can be close to U-shaped beam, save space.
In addition, side guard plate 5-1 must be withdrawn during bracket is mobile, prevent it from sending out with tunnel side wall or development machine
Raw collision；And the apron plate 4 of bracket front end can be stretched out or be withdrawn according to on-site actual situations, avoid interfering with development machine.
The step type support system, entire bracket use hydraulic cylinder system drive, securely and reliably, are convenient for operation, are practical
Property it is strong, have a wide range of application, smoothly come into operation in coal mine work area, and society, economy, safety benefit are obvious.
Claims (8)
1. a kind of step type support system for arched tunnel driving, which is characterized in that including U-shaped beam group, beam group and oil
Cylinder group；
The U-shaped beam group includes the first U-shaped beam (1-1) being arranged successively, the second U-shaped beam (1-2), the U-shaped beam of third (1-3) and
Four U-shaped beams (1-4)；
The beam group includes 2n beam (2), and the beam (2) includes the front beam (2-1) and back end beam (2- being hinged
2)；The beam group, n beam (2) therein are A beam group, and are connected by front beam (2-1) and the first U-shaped beam (1-1)
Connect, the mode that back end beam (2-2) is connect with the U-shaped beam of third (1-3) is connect with U-shaped beam group, other n beam (2) is B beam
Group, and pass through front beam (2-1) and the second side that U-shaped beam (1-2) connect, back end beam (2-2) is connect with the 4th U-shaped beam (1-4)
Formula is connect with U-shaped beam group；The integer that n is >=2；
The oil cylinder group includes passage oil cylinder (3-1) and support cylinder (3-2)；One end of the passage oil cylinder (3-1) and the 2nd U
Type beam (1-2) connection, the other end are connect with the U-shaped beam of third (1-3)；The quantity of the support cylinder (3-2) is 8, the branch
One end of support oil cylinder (3-2) is respectively arranged in the first U-shaped beam (1-1), the second U-shaped beam (1-2), the U-shaped beam of third (1-3) and the 4th
Two ends of U-shaped beam (1-4).
2. the step type support system for arched tunnel driving as described in claim 1, which is characterized in that further include preceding shield
Plate (4), the oil cylinder group further include the first connection oil cylinder (3-3)；The quantity of the apron plate (4) is n, and one end is distinguished
Be articulated with the end of the front beam (2-1) of A beam group, inner surface pass through respectively the first connection oil cylinder (3-3) be connected to it is corresponding
The inner surface of front beam (2-1).
3. the step type support system for arched tunnel driving as described in claim 1, which is characterized in that further include side shield
Device (5), the side protection unit (5) include the side guard plate (5-1) and attachment base (5-2) being hinged；The oil cylinder group is also wrapped
Include the second connection oil cylinder (3-4)；The quantity of the side protection unit (5) is 2m, and its attachment base (5-2) is hingedly connected to be located at
In A beam group/B beam group beam (2) of U-shaped beam group two sides, side guard plate (5-1) passes through the second connection oil cylinder (3- respectively
4) it is connected on corresponding beam (2)；The integer that m is >=1.
4. the step type support system for arched tunnel driving as claimed in claim 2, which is characterized in that further include side shield
Device (5), the side protection unit (5) include the side guard plate (5-1) and attachment base (5-2) being hinged；The oil cylinder group is also wrapped
Include the second connection oil cylinder (3-4)；The quantity of the side protection unit (5) is 2m, and its attachment base (5-2) is hingedly connected to be located at
In A beam group/B beam group beam (2) of U-shaped beam group two sides, side guard plate (5-1) passes through the second connection oil cylinder (3- respectively
4) it is connected on corresponding beam (2)；The integer that m is >=1.
5. the step type support system for arched tunnel driving, feature exist according to any one of claims 1 to 4
In the first U-shaped beam (1-1), the second U-shaped beam (1-2), the U-shaped beam of third (1-3) and the 4th U-shaped beam (1-4) are arc
U-shaped opening structure.
6. the step type support system for arched tunnel driving, feature exist according to any one of claims 1 to 4
In the size of the n is 4,5 or 6, and n beam (2) difference in the n beam (2) and B beam group in A beam group is successively
It is installed on the outer surface of U-shaped beam group.
7. the step type support system for arched tunnel driving as described in claim 3 or 4, which is characterized in that the m's
Size is 2, and the quantity of the side protection unit (5) is 4 and is respectively arranged in the front end of A beam group/B beam group beam (2)
On beam (2-1) and back end beam (2-2).
8. the step type support system for arched tunnel driving as described in claim 1, which is characterized in that the passage oil
The quantity of cylinder (3-1) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910778878.0A CN110388224A (en) | 2019-08-22 | 2019-08-22 | A kind of step type support system for arched tunnel driving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910778878.0A CN110388224A (en) | 2019-08-22 | 2019-08-22 | A kind of step type support system for arched tunnel driving |
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| CN110388224A true CN110388224A (en) | 2019-10-29 |
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| CN201910778878.0A Pending CN110388224A (en) | 2019-08-22 | 2019-08-22 | A kind of step type support system for arched tunnel driving |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173544A (en) * | 2020-01-13 | 2020-05-19 | 河南理工大学 | Large-span roadway supporting structure |
| CN111456790A (en) * | 2020-04-09 | 2020-07-28 | 山东建筑大学 | Self-moving type roof protection and anchor support integrated device and roof protection and support method |
| CN111828073A (en) * | 2020-08-06 | 2020-10-27 | 沈阳天安科技股份有限公司 | Novel roadway support device |
| CN113047882A (en) * | 2021-02-28 | 2021-06-29 | 贵州壹站式装备科技有限公司 | Underground temporary supporting device |
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| CN111173544A (en) * | 2020-01-13 | 2020-05-19 | 河南理工大学 | Large-span roadway supporting structure |
| CN111456790A (en) * | 2020-04-09 | 2020-07-28 | 山东建筑大学 | Self-moving type roof protection and anchor support integrated device and roof protection and support method |
| CN111456790B (en) * | 2020-04-09 | 2021-07-20 | 山东建筑大学 | Self-moving type roof protection and anchor support integrated device and roof protection and support method |
| CN111828073A (en) * | 2020-08-06 | 2020-10-27 | 沈阳天安科技股份有限公司 | Novel roadway support device |
| CN113047882A (en) * | 2021-02-28 | 2021-06-29 | 贵州壹站式装备科技有限公司 | Underground temporary supporting device |
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