CN104373147A - Folding extension type roadway hydraulic bracket and application method thereof - Google Patents
Folding extension type roadway hydraulic bracket and application method thereof Download PDFInfo
- Publication number
- CN104373147A CN104373147A CN201410483467.6A CN201410483467A CN104373147A CN 104373147 A CN104373147 A CN 104373147A CN 201410483467 A CN201410483467 A CN 201410483467A CN 104373147 A CN104373147 A CN 104373147A
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- back timber
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 18
- 239000011435 rock Substances 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 12
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 8
- 230000005641 tunneling Effects 0.000 description 6
- 238000004873 anchoring Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000027648 face development Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
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
- E21D23/04—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
- 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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a folding extension type roadway hydraulic bracket and an application method thereof. The bracket comprises a top beam, two angle beams, two side protection plates, two side supports and a base, wherein the two ends of the top beam are respectively hinged to the two angle beams; the other ends of the angle beams are hinged to the side protection plates; the side protection plates are hinged to the side supports; the bottoms of the side supports are spherically hinged to the base; rotating angles between the top beam and the angle beams pass through limit stoppers; wedge blocks for limiting inward rotation of the side protection plates are arranged at the hinged inner sides of the angle beams and the side protection plates; and a skid resisting device is arranged on the base. The shape of the bracket in the support state is accordant with the section of a roadway; when a top plate of the roadway is supported, the active support of two uppers is realized; the connection among all the components of the bracket is hinging; and the assembly, disassembly and transfer of the bracket are to fold and shrink a drop frame of a working bracket perpendicular to the direction of the roadway through an auxiliary bracket assembly/disassembly/transfer device, and the state is kept until a support area supported by the working bracket moves to the front side along the direction of the roadway, so that the front-support back-return recycling is realized.
Description
Technical field
The present invention relates to laneway temporary support hydraulic support and the using method of the safe and efficient rapid construction of a kind of underground construction.
Background technology
Underground construction comprehensive mechanized driving construction technology, because it is safe and reliable, singly enter efficiency far above traditional big gun tunneling process, at present by wide popularization and application.How to realize safe and efficient driving, from eighties of last century the fifties so far, Mining At Home And Abroad circle has carried out a large amount of explorations, and creates a lot of technique and equipment.Wherein main technology point relates to two aspects, the temporary lining that namely Rapid Implementation is safe and reliable and the parallel operations of tunneling machine cutting and permanent support.
Temporary lining caves in for country rock inbreak after preventing tunnel initating to hurt sb.'s feelings, establish for ensureing the safety of permanent support operating personnel, more shallow and Surrounding Rock Strength is high, self-supporting is reliable and stable after excavation, geological structure is simple etc. the applicable condition for mining depth, mechanical system is adopted to carry out permanent support, when operating personnel does not need to enter empty top zone, can not temporary lining be done, directly carry out permanent support; Generally, want first near boring head, to implement temporary lining after roadway excavation, under the protection of temporary lining, implement the permanent support in tunnel.
Existing digging laneway temporary support and employing mechanical system are carried out permanent support and are mainly contained 6 types:
1, traditional temporary lining mode has suspension ring to add steel pipe (or track, shaped steel) etc., adds protect topping material temporary lining top board by front altering steel pipe (or track, shaped steel) etc.
2, development machine rack joist protects top mode.
3, anchoring integral development machine is dug.
4, front-back pull-push type or paired alternately step type hydraulic pressure automatic shifting stand.
5, the monorail crane timbering machine of Germany's development.
6, TBS tunnel construction development machine temporary lining form.
The subject matter that aforesaid way exists:
When altering before 1, traditional temporary lining need artificial lapping, on connect topping material; labour intensity is large, and the lower operation in empty top is dangerous, does not almost have roof timbering power; limited protective effect can only be played to operating personnel, often occur that field operation personnel follow the line of least resistance, dislike trouble, do not use phenomenon.
2, development machine frame joist type temporary lining, lapping operation is still under sky top, and supporting area does not reach tunneling boring, frame strength and limited with development machine bonding strength, and supporting power is very little, and when implementing temporary lining and permanent support, development machine just cannot parallel operations.
3, anchoring integral development machine is dug.Be born from sixties first generation anchor driving machine and carried out twice change so far, third generation pick anchoring integral, although achieve the parallel operations of pick anchor, but anchor pole unsupported back span is large, and generally more than 1.2-1.5 rice, supporting can not immediately following meeting head on, so, be only applicable to that Bian is dark little, ore deposit pressure is little, wall rock condition good big cross section rectangle or trapezoidal tunnel, therefore, never applied widely.The Bian degree of depth is opened darker as China overwhelming majority mining area and the country such as Germany, Poland, ore deposit pressure is large, the conditions such as country rock soft broken, anchor pole is intensive, even also need linked network, cable bolting, support work amount is large, and not only unsupported back span is from can not meet requirement, support time, much larger than the cut time, is also difficult to synchronous with cut.
4, front-back pull-push type or paired alternately step type hydraulic pressure automatic shifting stand, each circulation supports once repeatedly to top board, destructible top board; be unfavorable for the supporting to top board; when roof condition is bad, must supporting be shut down, tunneling machine cutting and permanent support parallel operations can not be realized.
5, the monorail crane timbering machine of Germany's development.The mechanized operation of permanent support can be realized, avoid personnel to enter the operation of non-support district, but this device structure is too complicated, appearance and size is large, can only be applicable to large section roadway construction, and supporting and driving cut are at the same area, mutually dryly to scratch, affect parallel operations efficiency.
6, TBM rock ripper has worn-out open type, two shield, single shield etc., and tunnel construction temporary lining form is the support pattern integrated with tunneling boring cut development machine.The supporting of this support pattern boring head to top side is to integrated support, contraction, the reach of country rock, support by shield total length again, repeatedly support destructible country rock, being only applicable to turn round, radius of curvature is large, the good tunnel construction of big cross section, wall rock condition, meets tomography, zone of fracture is easily stuck.
Summary of the invention
For the problems referred to above, the present invention discloses one and can be used for the operation area temporary lining of driving face development machine, also can be used for the folding telescopic alley hydraulic support of coal wall twice advance support, temporary lining and the effect of tunneling machine cutting synchronous parallel can be realized, greatly improve drivage efficiency and safety.
The technical solution used in the present invention is as follows:
A kind of folding telescopic alley hydraulic support, comprise back timber, two cantilevered corner beams, two side guard boards, two collateral supports and base, each hinged cantilevered corner beam at the two ends of described back timber, the described cantilevered corner beam other end is hinged on side guard board, the hinged collateral support of described side guard board, the bottom ball pivot of described collateral support is on base, the anglec of rotation between back timber and cantilevered corner beam makes it rotate to be limited within the scope of the safety angle of braced structures license by positive stop, and cantilevered corner beam and the hinged inner side of side guard board be provided with the opening that constrained side backplate inwardly rotates add wedge, with friction skidding device on base.
Described folding telescopic alley hydraulic support is consistent with drift section in the shape of holding state, realize the active support to both sides while to back supporting, and the peace of support to remove carrying be assist peace to remove Handling device by support frame is fallen in Working rack to move towards folding shrinking perpendicular to tunnel, and keep this state to move to front set up again along tunnel trend there being the supporting district of Working rack supporting, return after before realizing and recycle.
Described collateral support comprises single column and two two kinds, column by its one-sided column quantity; Flexible box-structure and column two kinds of forms are comprised with or without anti-side to load-carrying ability by it; Single-telescopic prop and two gentry's contracting column two kinds of forms are comprised by post quantity of living in column; Comprise hydraulic pilot mode according to the control mode of hydraulic vertical prop, control and each column are carried out respectively to single or one-sided column and enters back liquid and be connected in parallel on and always enter always back into row control two kinds of forms; Column bottom is provided with the ball pivot connected with base.
Anti-side is had to comprise the flexible box-structure of interior band hydraulic jack, flexible both sides' steel work of interior band hydraulic jack and jack overcoat round steel stretching structure three kinds of forms to the collateral support of load-carrying ability, so-called overcoat round steel stretching structure refers to that overcoat round steel one end and jack capital end alive are fixed as one, and jack cylinder body overlaps in round steel flexible outside.
When described side is supported for hydraulic prop, be provided with hydraulic pressure socket thereon, realized the lifting of hydraulic support by external hydraulic pressure intubate connecting fluid pressing system.
Described base is arc, have that cast steel is shaping, steel forge the shaping or shaping three kinds of forms of welded steel, which is provided with the ball pivot that be connected supporting with column, its soffit be convex concave, stripe-shaped or embed steel pawl, with stop and and roadway floor between Relative sliding.
Described back timber shape, according to the occurrence of drift section country rock and lithology, has " one " font, " people " font or circular arc arch three kinds of forms.
Described back timber connects top jack with several, or with pressure pad or hydraulic die cushion on back timber or on back timber and cantilevered corner beam or on back timber, cantilevered corner beam and side plate, contacts with the compactness of roadway surrounding rock to realize support.
Described back timber is that shaped steel or type have just welded with metal plate material or metal plate material welds with metal plate material; And on back timber two ends, be provided with the positive stop limiting cantilevered corner beam and outwards rotate.
Described cantilevered corner beam is that shaped steel or type have just welded with metal plate material or metal plate material welds with metal plate material.
The using method of described folding telescopic alley hydraulic support is as follows:
(1) development machine completes full section face, tunnel cut, completes the supporting of anchor pole rope net at development machine rear simultaneously;
(2) assist peace to remove the hydraulic support that Handling device removes temporary support area afterbody by hydraulic support, be transported to boring head;
(3) assist peace to remove Handling device by hydraulic support and complete support erection;
(4) step (1) ~ (3) are repeated.
Beneficial effect of the present invention is as follows:
The shape of support duty of the present invention is consistent with drift section, support is to the active support realizing while back supporting helping two, connection between each component of support is hinged, the peace of support is removed migration and peace can be assisted to remove means of locomotion by support Working rack is moved towards folding shrinking perpendicular to tunnel to fall frame, and keep this state to have the supporting district of Working rack supporting to move to front set up again along tunnel trend, recycle to return after before realizing.
Back timber according to the occurrence of drift section country rock and lithology, can be set to " one " font, " people " font and circular arc arch three kinds of forms by the present invention; Supported on both sides of the present invention has single column and two two kinds, column by its one-sided column quantity; Anti-side is had to load-carrying ability and nonreactive lateral load ability two kinds of forms with or without anti-side to load-carrying ability by it.
What side guard board is respectively equipped with cantilevered corner beam and column is hinged, cantilevered corner beam can be decomposed into lateral load to the active force of side guard board and the moment that is fulcrum with the hinge axes with column, the axial support power of column is become the supporting power to top, tunnel, side by cantilevered corner beam and side guard board structure.
Accompanying drawing explanation
Fig. 1 structure chart of the present invention;
Fig. 2 positive stop schematic diagram;
Fig. 3 adds the hinged schematic diagram of wedge;
In figure: 1 back timber, 2 cantilevered corner beams, 3 bases, 4 collateral supports, 5 side guard boards, 6 antiskid bases, 7 is spacing hinged, 8 positive stops, 9 hinged voussoirs, and 10 to add wedge hinged, 11 tunnels, 12 backs, 13 roadway floors.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
The present invention is consistent with tunnel 11 section in the shape of holding state, realize the active support helped two while to back 12 supporting, connection between each component of support is hinged, it is assist peace to remove Handling device by support frame is fallen in Working rack to move towards folding shrinking perpendicular to tunnel that the peace of support removes carrying, and keep this state to move to front set up again along tunnel 11 trend there being the supporting district of Working rack supporting, return after before realizing and recycle.
The present invention includes back timber 1, two cantilevered corner beams 2, two side guard boards 5, two collateral supports 4 and base 3 form, back timber 1 and cantilevered corner beam 2, cantilevered corner beam 2 and side guard board 5, side guard board 5 with between column 4 to connect be hinged, collateral support 4 is ball pivot with connecting between base 3, cantilevered corner beam 2 and column 4 are articulated with on side guard board, by this structure the axial support power of column become and tunnel is pushed up, the supporting power of side, for ensureing that rack supporting structure is stablized, the anglec of rotation between back timber and cantilevered corner beam makes it rotate to be limited within the scope of the safety angle of braced structures license by positive stop 8, cantilevered corner beam and the hinged inner side of side guard board are provided with opening and add the inside tumbler of wedge constrained side backplate, hinged by the mode adding wedge hinged, base 3 is with friction skidding device.
It is general Handling device that support assists peace to remove Handling device, belongs to prior art.
Back timber 1 according to the occurrence of drift section country rock and lithology, can be set to " one " font, " people " font and circular arc arch three kinds of forms by the present invention;
Two collateral supports 4 have single column and two two kinds, column by its one-sided column quantity; Anti-side is had to load-carrying ability and nonreactive lateral load ability two kinds of forms with or without anti-side to load-carrying ability by it; Single-telescopic prop and two gentry's contracting column two kinds of forms are had by post quantity of living in column; According to the useful hydraulic pilot mode of the control mode of hydraulic vertical prop, control and each column are carried out respectively to single or one-sided column and enters back liquid and be connected in parallel on and always enter always back into row control two kinds of forms; Column bottom is provided with the ball pivot connected with base 3.
Anti-side is had to comprise the flexible box-structure of interior band hydraulic jack, flexible both sides' steel work of interior band hydraulic jack and jack overcoat round steel stretching structure three kinds of forms to the collateral support of load-carrying ability, so-called overcoat round steel stretching structure refers to that overcoat round steel one end and jack capital end alive are fixed as one, and jack cylinder body overlaps in round steel flexible outside.
Stressed Advantages found of the present invention exists: what side guard board 5 is respectively equipped with cantilevered corner beam 2 and column 4 is hinged, the active force of cantilevered corner beam 2 pairs of side guard boards 5 and with the hinged moment for fulcrum with column, the axial support power of column is become the supporting power to top, tunnel, side.
Collateral support 4 of the present invention is hydraulic vertical prop, is provided with hydraulic pressure socket, is realized the lifting of hydraulic support by external hydraulic pressure intubate connecting fluid pressing system;
Base 3 of the present invention is arcs, have that cast steel is shaping, steel forge the shaping and shaping three kinds of forms of welded steel, which is provided with the ball pivot that be connected supporting with column, its soffit is convex concave or stripe-shaped, or embed steel pawl, with the Relative sliding stoped and between roadway floor.
Back timber 1 two ends are provided with spacing hinged 7, and back timber is that shaped steel or type have just welded with metal plate material or metal plate material welds with metal plate material; The positive stop that restriction cantilevered corner beam outwards rotates is provided with above back timber two ends.
Cantilevered corner beam 2 two ends are provided with hinged, and cantilevered corner beam 2 is that shaped steel or type have just welded with metal plate material or metal plate material welds with metal plate material; Cantilevered corner beam 2 and back timber 1 hinged place are provided with and limit its outwards relative positive stop rotated, and cantilevered corner beam 2 and side guard board 5 add wedge hinged 10, and hinged inner side is provided with hinged voussoir 9 can the opening that inwardly rotates of constrained side backplate.
Support is provided with hydraulic pressure socket, is realized the lifting of hydraulic support by external hydraulic pressure intubate connecting fluid pressing system.
Base 3 is arcs, has that cast steel is shaping, steel forge the shaping and shaping three kinds of forms of welded steel, and which is provided with the ball pivot that be connected supporting with column, its soffit is convex concave or stripe-shaped, or embeds steel pawl, with the Relative sliding stoped and between roadway floor 13.
Folding telescopic alley hydraulic support, its operating principle and use step are:
(1) development machine completes full section face, tunnel cut, completes the supporting of anchor pole rope net at development machine rear simultaneously;
(2) assist peace to remove the hydraulic support that Handling device removes temporary support area afterbody by hydraulic support, be transported to boring head;
(3) assist peace to remove Handling device by hydraulic support and complete support erection;
(4) step (1) ~ (3) are repeated.
Claims (11)
1. a folding telescopic alley hydraulic support, it is characterized in that: comprise back timber, two cantilevered corner beams, two side guard boards, two collateral supports and base, each hinged cantilevered corner beam at the two ends of described back timber, the described cantilevered corner beam other end is hinged on side guard board, the hinged collateral support of described side guard board, the bottom ball pivot of described collateral support is on base, the anglec of rotation between back timber and cantilevered corner beam makes it rotate to be limited within the scope of the safety angle of braced structures license by positive stop, and cantilevered corner beam and the hinged inner side of side guard board are provided with the voussoir that constrained side backplate inwardly rotates, with friction skidding device on base.
2. a kind of folding telescopic alley hydraulic support as claimed in claim 1, it is characterized in that: described folding telescopic alley hydraulic support is consistent with drift section in the shape of holding state, realize the active support helped two while to back supporting, and the peace of support to remove carrying be assist peace to remove Handling device by support frame is fallen in Working rack to move towards folding shrinking perpendicular to tunnel, and keep this state to move to front set up again along tunnel trend there being the supporting district of Working rack supporting, return after before realizing and recycle.
3. folding telescopic alley hydraulic support as claimed in claim 1, is characterized in that: described collateral support comprises single column and two two kinds, column by its one-sided column quantity; Anti-side is included to load-carrying ability and nonreactive lateral load ability two kinds of forms with or without anti-side to load-carrying ability by it; Single-telescopic prop and two gentry's contracting column two kinds of forms are comprised by post quantity of living in column; Comprise hydraulic pilot mode according to the control mode of hydraulic vertical prop, control and each column are carried out respectively to single or one-sided column and enters back liquid and be connected in parallel on and always enter always back into row control two kinds of forms; Column bottom is provided with the ball pivot connected with base.
4. folding telescopic alley hydraulic support as claimed in claim 3, it is characterized in that: have anti-side to comprise the flexible box-structure of interior band hydraulic jack, flexible both sides' steel work of interior band hydraulic jack and jack overcoat round steel stretching structure three kinds of forms to the collateral support of load-carrying ability, so-called overcoat round steel stretching structure refers to that overcoat round steel one end and jack capital end alive are fixed as one, and jack cylinder body overlaps in round steel flexible outside.
5. folding telescopic alley hydraulic support as claimed in claim 4, be is characterized in that: when described side is supported for hydraulic prop, be provided with hydraulic pressure socket thereon, is realized the lifting of hydraulic support by external hydraulic pressure intubate connecting fluid pressing system.
6. folding telescopic alley hydraulic support as claimed in claim 1, it is characterized in that: described base is arc, have that cast steel is shaping, steel forge the shaping or shaping three kinds of forms of welded steel, which is provided with the ball pivot that be connected supporting with column, its soffit is convex concave, stripe-shaped or embedding steel pawl, with the Relative sliding stoped and between roadway floor.
7. folding telescopic alley hydraulic support as claimed in claim 1, is characterized in that: described back timber shape, according to the occurrence of drift section country rock and lithology, comprises " one " font, " people " font or circular arc arch three kinds of forms.
8. folding telescopic alley hydraulic support as claimed in claim 1, it is characterized in that: described back timber connects top jack with several, or with pressure pad or hydraulic die cushion on back timber or on back timber and cantilevered corner beam or on back timber, cantilevered corner beam and side plate, contact with the compactness of roadway surrounding rock to realize support.
9. folding telescopic alley hydraulic support as claimed in claim 1, is characterized in that: described back timber is that shaped steel or type have just welded with metal plate material or metal plate material welds with metal plate material; And on back timber two ends, be provided with the positive stop limiting cantilevered corner beam and outwards rotate.
10. folding telescopic alley hydraulic support as claimed in claim 2, is characterized in that: described cantilevered corner beam is shaped steel or type has just welded with metal plate material or metal plate material welds with metal plate material.
The using method of 11. folding telescopic alley hydraulic supports as claimed in claim 1, is characterized in that, as follows:
(1) development machine completes full section face, tunnel cut, completes the supporting of anchor pole rope net at development machine rear simultaneously;
(2) assist peace to remove the hydraulic support that Handling device removes temporary support area afterbody by hydraulic support, be transported to boring head;
(3) assist peace to remove Handling device by hydraulic support and complete support erection;
(4) step (1) ~ (3) are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483467.6A CN104373147B (en) | 2014-09-19 | 2014-09-19 | Folding extension type roadway hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483467.6A CN104373147B (en) | 2014-09-19 | 2014-09-19 | Folding extension type roadway hydraulic bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373147A true CN104373147A (en) | 2015-02-25 |
| CN104373147B CN104373147B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410483467.6A Active CN104373147B (en) | 2014-09-19 | 2014-09-19 | Folding extension type roadway hydraulic bracket |
Country Status (1)
| Country | Link |
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| CN (1) | CN104373147B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114108A (en) * | 2015-08-19 | 2015-12-02 | 遵义庄氏矿井支护技术开发有限公司 | Short stand column shrinkable shed bracket |
| CN107965342A (en) * | 2017-12-27 | 2018-04-27 | 中国煤炭科工集团太原研究院有限公司 | Arched tunnel driving moves into covering device certainly without support repeatedly |
| CN108708753A (en) * | 2018-05-31 | 2018-10-26 | 烟台智本知识产权运营管理有限公司 | A kind of gold mine tunnel special hydraulic support |
| CN112302698A (en) * | 2020-10-28 | 2021-02-02 | 贵州理工学院 | Folding hydraulic tunnel supporting device convenient to carry |
| CN116291655A (en) * | 2023-05-22 | 2023-06-23 | 山西中煤东坡煤业有限公司 | Coal mine roadway supporting equipment |
| CN116753008A (en) * | 2023-08-11 | 2023-09-15 | 北京科技大学 | Large-section roadway flexible supporting equipment |
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| DE2431740A1 (en) * | 1974-07-02 | 1976-01-22 | Johannes Winkler | Mine shield support with roofbar control - control rod, mounting guide, shield and floor bar parallelogram linkage |
| GB2093515B (en) * | 1981-02-24 | 1984-12-05 | Dobson Park Ind | Improvements in or relating to mine roof supports |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114108A (en) * | 2015-08-19 | 2015-12-02 | 遵义庄氏矿井支护技术开发有限公司 | Short stand column shrinkable shed bracket |
| CN107965342A (en) * | 2017-12-27 | 2018-04-27 | 中国煤炭科工集团太原研究院有限公司 | Arched tunnel driving moves into covering device certainly without support repeatedly |
| CN108708753A (en) * | 2018-05-31 | 2018-10-26 | 烟台智本知识产权运营管理有限公司 | A kind of gold mine tunnel special hydraulic support |
| CN112302698A (en) * | 2020-10-28 | 2021-02-02 | 贵州理工学院 | Folding hydraulic tunnel supporting device convenient to carry |
| CN112302698B (en) * | 2020-10-28 | 2022-08-12 | 贵州理工学院 | Folding hydraulic tunnel supporting device convenient to carry |
| CN116291655A (en) * | 2023-05-22 | 2023-06-23 | 山西中煤东坡煤业有限公司 | Coal mine roadway supporting equipment |
| CN116291655B (en) * | 2023-05-22 | 2023-08-04 | 山西中煤东坡煤业有限公司 | Coal mine roadway supporting equipment |
| CN116753008A (en) * | 2023-08-11 | 2023-09-15 | 北京科技大学 | Large-section roadway flexible supporting equipment |
| CN116753008B (en) * | 2023-08-11 | 2023-10-27 | 北京科技大学 | Large-section roadway flexible supporting equipment |
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| CN104373147B (en) | 2017-02-15 |
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