CN205297603U - Colliery rock burst supporting device - Google Patents
Colliery rock burst supporting device Download PDFInfo
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- CN205297603U CN205297603U CN201520961873.9U CN201520961873U CN205297603U CN 205297603 U CN205297603 U CN 205297603U CN 201520961873 U CN201520961873 U CN 201520961873U CN 205297603 U CN205297603 U CN 205297603U
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- steel
- pipe pile
- rock burst
- mine
- truss
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Abstract
The utility model belongs to the technical field of the coal mine safety technique and specifically relates to a colliery rock burst supporting device, it includes the frame with arrange in at mine a plurality of steel -pipe pile all around, being provided with a backplate between every steel -pipe pile of, rack mount is on the steel -pipe pile, and the frame is formed by a plurality of truss, longeron and upright roof beam overlap joint, and frame top is stamped the welt. The utility model discloses install all around the steel -pipe pile at the mine, inside the soil layer was inserted to the steel -pipe pile bottom always, reinforcing steel -pipe pile and soil layer joint strength improved the holding capacity of steel -pipe pile, are provided with the steel core axle in the steel -pipe pile, and the holding capacity of the promotion steel -pipe pile that the steel core axle can step forward can play the effect of strutting with rack mount in addition on the steel -pipe pile, made the mine portion collapse, simple structure, and safe and reliable has very strong practicality simultaneously.
Description
Technical field
The present invention relates to technical field of mine safety, especially a kind of coal mine rock burst suspension device.
Background technology
Bump is a complicated physical mechanics process, and the history to the existing last 100 years of its research, remains a difficult problem in mining engineering and rock mechanics circle so far both at home and abroad. Mainly take measure in following two to reduce the destructiveness of impact accident at present on method for protecting support: first, by strengthening the self-strength of country rock, improve the stability in the large of country rock; Second, by strengthening prop intensity, thus improving the bearing capacity of prop structure. Such as play anchor shaft anchor cable, anchor net, whitewashing, shape steel bracket supporting, canopy-Suo Xietong supporting and hydraulic support stand etc., be all by increasing prop intensity thus strengthening the stability of support system, to resist external percussion, in Practical Project, also really present some significant effects.
But in the last few years, along with the continuous expansion of the increase of coal mining depth and limit of mining, bump accident to manifest frequency further prominent with destructiveness. From substantial amounts of statistical result, research finds, existing roadway support can meet requirement under quasi-static pressure or under less impact, but when the impact that burst is bigger often or country rock disturbance to a certain degree, prop will show the vulnerability of local, or even the unstability of entirety, present not bad then once the bad phenomenon producing extremely serious consequence. Learning so analyzing, the unstable failure of support system is primarily not owing to intensity is not enough, but owing to the impact resistance of prop is poor, it does not have the function of good buffering energy-absorbing of stepping down. Current China's coal-mine generally enters the deep mining stage, it is faced with the higher requirement that supporting is proposed by the geological conditions of powerful ore deposit pressure and more sophisticated, so being badly in need of proposing more reasonably method for protecting support, design more superior support apparatus, improve current colliery erosion control supporting situation, to ensure the personal safety of coal miner and being smoothed out of mining activity.
Now using the most widely used U-shaped steel bracket of current roadway support as object is described.So-called U-shaped steel, it is simply that section is the girder steel of " U " type, is used for the closing to coal cutting roadway or semi-enclosed support. Different according to the supporting demand in engineering, the shape of U-shaped steel pattern number, material and sectional shelf-unit also has certain difference (industry has concrete norm on manufacturing). Wherein O type canopy support is exactly saved U-shaped steel arc beam by four joints or six to overlap the subcircular support circle constituted from beginning to end, and lap-joint's card cable (being commonly called as clamp) is waled. It is characterized in that: " U " type form of fracture of U-shaped steel and the O type support form of closing are very reasonable, positive effect is had for promoting self bearing capacity, strengthening improving stability of surrounding rocks in roadway, and support overall shrinkage can be carried out by the relative changing of the relative positions of beam lap-joint, to realize the pressure relief of stepping down under Rock Creep, control the deformation tendency of roadway surrounding rock, it is ensured that the stability of support system. But, when the country rock that happens suddenly impacts, U-shaped steel will manifest some defects, for instance: U-shaped steel toughness is poor, often there will be local and fractures; The screw of joint card cable breaks, clamp collapses out; Overall gross distortion or collapse; O type canopy support pattern belongs to monolayer composite, and once occur that containing deformation or entirety collapse, internal staff, equipment are all exposed to danger.
Summary of the invention
For above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of simple in construction, safe and reliable, coal mine rock burst suspension device that supporting performance is good.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of coal mine rock burst suspension device, it includes framework and is placed at several steel-pipe piles of mine surrounding, it is provided with retaining-plate between each described steel-pipe pile, described framework is arranged on steel-pipe pile, described framework is overlapped by several truss, longeron and vertical beam, and described framework upper is stamped liner plate.
Preferably, described steel-pipe pile upper end is provided with anchor head, and described anchor head is provided with several and is provided with through hole, and described through hole runs through several steel core shafts, inserts in soil layer bottom described steel core shaft.
Preferably, a support arrangement it is additionally provided with bottom described vertical beam, described support device includes pressue device and support bar, described pressue device two ends are provided with hydraulic cylinder, the first plush copper it is provided with on bottom described hydraulic cylinder, described support bar includes support and gripper shoe, and described support welds on the supporting plate, and described support plate upper end is provided with and the second plush copper of the first corresponding connection of plush copper.
Preferably, it is connected to connecting rod between two described truss one pair of which angles.
Preferably, described truss and steel-pipe pile junction are provided with angle cleat.
Preferably, described support adopts I-steel.
Owing to adopting technique scheme, the present invention installs steel-pipe pile in mine surrounding, inserts inside soil layer bottom steel-pipe pile always, strengthens steel-pipe pile and soil layer bonding strength, improve the holding capacity of steel-pipe pile, being provided with steel core shaft in steel-pipe pile, steel core shaft can further promote the holding capacity of steel-pipe pile, is additionally arranged on the effect that can play supporting on steel-pipe pile with framework, mine portion is made to cave in, simple in construction, safe and reliable, there is very strong practicality simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the steel duct structural representation of the embodiment of the present invention;
Fig. 3 is the support device structure schematic diagram of the embodiment of the present invention;
Accompanying drawing labelling in figure: 110-steel-pipe pile; 120-support;140-liner plate; 154-steel core shaft; 156-anchor head; 130-retaining-plate; 162-angle steel; 166-truss; 168-connecting rod; 200-longeron; 210-vertical beam; 170-support bar; 171-gripper shoe; 180-pressue device; 174-the second plush copper; 182-hydraulic cylinder; 184-the first plush copper.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Such as Fig. 1 and in conjunction with shown in Fig. 2 and Fig. 3, a kind of coal mine rock burst suspension device, it includes framework and is placed at several steel-pipe piles 110 of mine surrounding, it is provided with retaining-plate 130 between each described steel-pipe pile 110, described framework is arranged on steel-pipe pile 110, described framework is overlapped by several truss 166, longeron 200 and vertical beam 210, and described framework upper is stamped liner plate 140.
Further, described steel-pipe pile 110 upper end is provided with anchor head 156, and described anchor head 156 is provided with several and is provided with through hole, and described through hole runs through several steel core shafts 154, inserts in soil layer bottom described steel core shaft 154.
Further, a support arrangement it is additionally provided with bottom described vertical beam 210, described support device includes pressue device 180 and support bar 170, described pressue device 180 two ends are provided with hydraulic cylinder 182, hydraulic cylinder 182 can the rate of tension of adjusting supporting device, time length mine has lower floor unavoidably, then at this moment available hydraulic cylinder 182 carries out jacking, improves its rate of tension. Being provided with the first plush copper 184 on bottom described 182, described support bar 170 includes support 120 and gripper shoe 171, and described support 120 is welded in gripper shoe 171, and described gripper shoe 171 upper end is provided with and the second plush copper 174 of the first corresponding connection of plush copper 184.
Further, being connected to connecting rod 168 between two described truss 166 one pair of which angles, connecting rod 168 makes corner framework become two triangle-frames, owing to the holding capacity of triangle-frame is better.
Further, described truss 166 is provided with angle cleat 162 with steel-pipe pile 110 junction, is wherein provided with several bolts on angle steel 162, truss 166 and steel-pipe pile is coupled together with bolt, and bolt connects simultaneously, dismounts more convenient.
Further, described support 120 adopts I-steel, and owing to cross sectional shape is reasonable, they can make steel play usefulness higher, improves bearing capacity. What be different from unskilled labor font is that the edge of a wing of H type steel has been widened, and inside and outside surface is usually parallel, so can be easy to connect with high-strength bolt and other components.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (4)
1. a coal mine rock burst suspension device, it is characterized in that: it includes framework and is placed at several steel-pipe piles of mine surrounding, it is provided with retaining-plate between each described steel-pipe pile, described framework is arranged on steel-pipe pile, described framework is overlapped by several truss, longeron and vertical beam, and described framework upper is stamped liner plate.
2. a kind of coal mine rock burst suspension device according to claim 1, it is characterized in that: described steel-pipe pile upper end is provided with anchor head, described anchor head is provided with several and is provided with through hole, and described through hole runs through several steel core shafts, inserts in soil layer bottom described steel core shaft.
3. a kind of coal mine rock burst suspension device according to claim 1, it is characterised in that: it is connected to connecting rod between two described truss one pair of which angles.
4. a kind of coal mine rock burst suspension device according to claim 1, it is characterised in that: described truss and steel-pipe pile junction are provided with angle cleat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520961873.9U CN205297603U (en) | 2015-11-29 | 2015-11-29 | Colliery rock burst supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520961873.9U CN205297603U (en) | 2015-11-29 | 2015-11-29 | Colliery rock burst supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297603U true CN205297603U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520961873.9U Expired - Fee Related CN205297603U (en) | 2015-11-29 | 2015-11-29 | Colliery rock burst supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332722A (en) * | 2015-11-29 | 2016-02-17 | 辽宁工程技术大学 | Coal mine rock burst timbering device |
-
2015
- 2015-11-29 CN CN201520961873.9U patent/CN205297603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332722A (en) * | 2015-11-29 | 2016-02-17 | 辽宁工程技术大学 | Coal mine rock burst timbering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20171129 |