CN204200254U - A kind of coal column is reinforced and is used two-way two-ended cables - Google Patents
A kind of coal column is reinforced and is used two-way two-ended cables Download PDFInfo
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- CN204200254U CN204200254U CN201420646747.XU CN201420646747U CN204200254U CN 204200254 U CN204200254 U CN 204200254U CN 201420646747 U CN201420646747 U CN 201420646747U CN 204200254 U CN204200254 U CN 204200254U
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- cable body
- anchor cable
- leading portion
- back segment
- coal column
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Abstract
The utility model discloses the reinforcing of a kind of coal column and use two-way two-ended cables, comprising: coal column (5) is provided with the straight hole (6) that tunnel, face and tunnel, rear pick face are first adopted in connection; Leading portion anchor cable body (1) stretches in straight hole (6) by first adopting tunnel, face, and back segment anchor cable body (2) stretches in straight hole (6) by tunnel, rear pick face, both are connected and fixed by the branch sleeve (3) be located in this straight hole (6); The front end of leading portion anchor cable body (1) is in first adopts in tunnel, face, and leading portion anchor cable body pallet (13) is pressed on the surface of coal column (5) by leading portion anchor cable body lockset (12); The rear end of back segment anchor cable body pallet (23) is in tunnel, rear pick face, and back segment anchor cable body pallet (23) is pressed on the surface of coal column (5) by back segment anchor cable body lockset (22).The utility model embodiment not only structure is simple, easy to operate, and can realize two-way to wearing reinforcing coal column, and this improves the enabling capabilities of coal column to top board greatly.
Description
Technical field
The utility model relates to the coal column reinforcing technique field between tunnel, mining area, particularly relates to the reinforcing of a kind of coal column and uses two-way two-ended cables.
Background technology
Gob side entry driving technology refers to that close goaf side stays the coal column establishing 4 ~ 6m wide as " divider wall prop ", and along coal column opposite side digging laneway, to replace the coal column that in traditional mining mode technology, 15 ~ 30m is wide.Compared with edge air gallery technology, gob side entry driving technology is using coal column as " divider wall prop ", need not manually build isolation body of wall again, both avoid the transport of support material, saved the cost of support material, solve again the problem of " building isolation body of wall " constructional difficulties.Adopt gob side entry driving technology can improve coal resources recovery ratio, reduce the region of stress concentration on coal column, make coal road combine pick, machine pick efficiency of construction significantly promotes, under general geological conditions, every drill footage per month can reach 400 ~ 600m, and thus gob side entry driving is easy to realize.
Gob side entry driving mainly relies on pillar back, therefore be necessary to strengthen pillar ability, but, more than coal column both sides mining engineering engineering time in difference at least one year, during the construction of new pick side, goaf side is closed already, therefore not to coal column in prior art to the device wearing reinforcing.
Summary of the invention
For above-mentioned weak point of the prior art, the utility model provides the reinforcing of a kind of coal column and uses two-way two-ended cables, and not only structure is simple, easy to operate, and can realize two-way to wearing reinforcing coal column, and this improves the enabling capabilities of coal column to top board greatly.
The purpose of this utility model is achieved through the following technical solutions:
A kind of coal column is reinforced and is used two-way two-ended cables, is arranged on coal column 5, comprises: leading portion anchor cable body 1, leading portion anchor cable body lockset 12, leading portion anchor cable body pallet 13, back segment anchor cable body 2, back segment anchor cable body lockset 22, back segment anchor cable body pallet 23 and branch sleeve 3; Coal column 5 is provided with the straight hole 6 that tunnel, face and tunnel, rear pick face are first adopted in connection; The rear end of leading portion anchor cable body 1 is stretched in this straight hole 6 by first adopting tunnel, face, and the front end of back segment anchor cable body 2 is stretched in this straight hole 6 by tunnel, rear pick face, and both are connected and fixed by the branch sleeve 3 be located in this straight hole 6;
The front end of leading portion anchor cable body 1 is in the tunnel, face of first adopting outside this straight hole 6, and leading portion anchor cable body lockset 12 is fixed on the front end of leading portion anchor cable body 1; Leading portion anchor cable body pallet 13 is located between leading portion anchor cable body lockset 12 and coal column 5; Leading portion anchor cable body pallet 13 is pressed on the surface of coal column 5 by the front end of leading portion anchor cable body 1 by leading portion anchor cable body lockset 12;
The rear end of back segment anchor cable body pallet 23 is in the tunnel, rear pick face outside this straight hole 6, and back segment anchor cable body lockset 22 is fixed on the rear end of back segment anchor cable body pallet 23; Back segment anchor cable body pallet 23 is located between back segment anchor cable body lockset 22 and coal column 5; Back segment anchor cable body pallet 23 is pressed on the surface of coal column 5 by the rear end of back segment anchor cable body pallet 23 by back segment anchor cable body lockset 22.
Preferably, the middle part of leading portion anchor cable body 1 is provided with Anchor Agent 14; Leading portion anchor cable body 1 is by the inwall anchoring of Anchor Agent 14 with straight hole 6.
Preferably, branch sleeve 3 is provided with internal thread; The rear end of leading portion anchor cable body 1 is provided with the first external thread connector 11; The front end of back segment anchor cable body 2 is provided with the second external thread connector 21; Leading portion anchor cable body 1 is threaded with branch sleeve 3 by the first external thread connector 11; Back segment anchor cable body 2 is threaded with branch sleeve 3 by the second external thread connector 21.
Preferably, the first external thread connector 11 is external screw thread steel pipe; The rear end of leading portion anchor cable body 1 is located in the first external thread connector 11, and is connected and fixed by the mode of winding steel wire and the first external thread connector 11.
Preferably, the second external thread connector 21 is external screw thread steel pipe; The front end of back segment anchor cable body 2 is located in the second external thread connector 21, and is connected and fixed by the mode of winding steel wire and the second external thread connector 21.
Preferably, the aperture of straight hole 6 is greater than the maximum outside diameter 2mm of leading portion anchor cable body 1 and back segment anchor cable body 2.
The technical scheme provided as can be seen from above-mentioned the utility model, the coal column that the utility model embodiment provides is reinforced with two-way two-ended cables when carrying out digging to the side, tunnel, face of first adopting of coal column 5, leading portion anchor cable body 1 is arranged in the straight hole 6 of coal column 5, and adopt the middle part of Anchor Agent 14 by leading portion anchor cable body 1 and the inwall anchoring of straight hole 6, thus even if leading portion anchor cable body 1 is not docked with back segment anchor cable body 2, also can play good supporting role to coal column 5; And when carrying out digging to the side, tunnel, rear pick face of coal column 5, back segment anchor cable body 2 is extend in this straight hole 6, and back segment anchor cable body 2 is docked by branch sleeve 3 with leading portion anchor cable body 1, thus the two-way two-ended cables that formation one is straight, two-way two-ended cables can produce stronger transversely strengthening effect by coal column 5 under the anchoring of two ends pallet, thus significantly can improve the enabling capabilities of coal column 5 pairs of top boards.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation one of the two-way two-ended cables that Fig. 1 provides for the utility model embodiment.
The structural representation two of the two-way two-ended cables that Fig. 2 provides for the utility model embodiment.
The structural representation three of the two-way two-ended cables that Fig. 3 provides for the utility model embodiment.
The structural representation four of the two-way two-ended cables that Fig. 4 provides for the utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection domain of the present utility model.
First it should be noted that; " forward and backward " alleged in present specification is that first to adopt tunnel, face be front; tunnel, rear pick face is described after being, this is only to clearly describe the utility model easily, and this does not form the restriction to the utility model protection domain.The coal column provided the utility model embodiment is below reinforced and is described in detail with two-way two-ended cables.
Embodiment one
As shown in Figures 1 to 4, a kind of coal column is reinforced and is used two-way two-ended cables, be arranged on coal column 5, its concrete structure can comprise: leading portion anchor cable body 1, leading portion anchor cable body lockset 12, leading portion anchor cable body pallet 13, back segment anchor cable body 2, back segment anchor cable body lockset 22, back segment anchor cable body pallet 23 and branch sleeve 3;
Coal column 5 is provided with the straight hole 6 that tunnel, face and tunnel, rear pick face are first adopted in connection; The rear end of leading portion anchor cable body 1 is stretched in this straight hole 6 by first adopting tunnel, face, and the front end of back segment anchor cable body 2 is stretched in this straight hole 6 by tunnel, rear pick face, and both are connected and fixed by the branch sleeve 3 be located in this straight hole 6;
The front end of leading portion anchor cable body 1 is in the tunnel, face of first adopting outside this straight hole 6, and leading portion anchor cable body lockset 12 is fixed on the front end of leading portion anchor cable body 1; Leading portion anchor cable body pallet 13 is located between leading portion anchor cable body lockset 12 and coal column 5; Leading portion anchor cable body pallet 13 is pressed on the surface of coal column 5 by the front end of leading portion anchor cable body 1 by leading portion anchor cable body lockset 12;
The rear end of back segment anchor cable body pallet 23 is in the tunnel, rear pick face outside this straight hole 6, and back segment anchor cable body lockset 22 is fixed on the rear end of back segment anchor cable body pallet 23; Back segment anchor cable body pallet 23 is located between back segment anchor cable body lockset 22 and coal column 5; Back segment anchor cable body pallet 23 is pressed on the surface of coal column 5 by the rear end of back segment anchor cable body pallet 23 by back segment anchor cable body lockset 22.
Wherein, this two-way two-ended cables can comprise following specific embodiments:
(1) middle part of leading portion anchor cable body 1 is provided with Anchor Agent 14, in actual applications, Anchor Agent 14 is preferably located at the position of the front end 2500 ~ 3500mm of distance leading portion anchor cable body 1, leading portion anchor cable body 1 can by the inwall anchoring of Anchor Agent 14 with straight hole 6, even if back segment anchor cable body 2 is not connected with leading portion anchor cable body 1, leading portion anchor cable body 1 also can play good supporting role to coal column 5.
(2) branch sleeve 3 is provided with internal thread; The rear end of leading portion anchor cable body 1 is provided with the first external thread connector 11; The front end of back segment anchor cable body 2 is preferably provided with the second external thread connector 21; Leading portion anchor cable body 1 is threaded with branch sleeve 3 by the first external thread connector 11; Back segment anchor cable body 2 is threaded with branch sleeve 3 by the second external thread connector 21.
In actual applications, the first external thread connector 11 is external screw thread steel pipe; The rear end of leading portion anchor cable body 1 is located in the first external thread connector 11, and be connected and fixed by the mode of winding steel wire and the first external thread connector 11, the attachment force of this syndeton is greater than the Fracture Force of leading portion anchor cable body 1, this makes to have good bonding strength between the first external thread connector 11 and leading portion anchor cable body 1, reduce the risk of breakage of this two-way two-ended cables, ensure that the reliability to coal column 5 reinforcement edge.Second external thread connector 21 is also external screw thread steel pipe; The front end of back segment anchor cable body 2 is located in the second external thread connector 21, and be connected and fixed by the mode of winding steel wire and the second external thread connector 21, the attachment force of this syndeton is greater than the Fracture Force of back segment anchor cable body 2, this makes to have good bonding strength between the second external thread connector 21 and back segment anchor cable body 2, reduce the risk of breakage of this two-way two-ended cables, ensure that the reliability to coal column 5 reinforcement edge.
(3) leading portion anchor cable body 1 and back segment anchor cable body 2 preferably select the straight-bar of identical material, identical thickness; Under normal conditions system, the cross-sectional diameter (i.e. external diameter) of leading portion anchor cable body 1 and back segment anchor cable body 2 is preferably all between 17.8 ~ 22mm, when actual conditions need to coal column 5 provide better support time, leading portion anchor cable body 1 and back segment anchor cable body 2 can select the anchor cable that cross-sectional diameter is larger.
(4) straight hole 6 is the straight through holes got out by boring bar tool of the prior art; After present segment anchor cable body 1 and back segment anchor cable body 2 link together in this straight hole 6, a straight two-way two-ended cables can be formed, interaction force between leading portion anchor cable body 1 and back segment anchor cable body 2 can all be converted to coal column 5 transversely strengthening power, thus significantly can improve the enabling capabilities of coal column 5 pairs of top boards.The aperture of straight hole 6 is more preferably greater than the maximum outside diameter 2mm of leading portion anchor cable body 1 and back segment anchor cable body 2, if the aperture of straight hole 6 is too small, then by branch sleeve 3, the process that leading portion anchor cable body 1 and back segment anchor cable body 2 link together will be difficult to realize, if the aperture of straight hole 6 is excessive, then can reduce the support force of coal column 5 self.
Particularly, the concrete installation process of this two-way two-ended cables is as follows:
(1) as shown in Figures 2 and 3, from first adopting (side of namely first constructing, side, tunnel, face; The digging in tunnel, rear pick face is formerly constructed behind formation goaf, side and is started) coal column 5 is holed, obtain the straight hole 6 that a level is straight, the length of straight hole is greater than coal column 5 width of setting; By the mode of winding steel wire, the rear end of leading portion anchor cable body 1 and the first external thread connector 11 are connected and fixed, and on the first external thread connector 11 a sheathed guiding tube 4, and the middle part of leading portion anchor cable body 1 binding Anchor Agent 14; Guiding tube 4, first external thread connector 11 and the leading portion anchor cable body 1 that bundled Anchor Agent 14 are extend in the straight hole 6 on coal column 5 successively, and the front end of leading portion anchor cable body 1 is still in the tunnel, face of first adopting outside straight hole 6; Utilize rig to stir brokenly Anchor Agent 14, thus make together with the middle part of leading portion anchor cable body 1 is anchored at the inwall of straight hole 6; Leading portion anchor cable body pallet 13 and leading portion anchor cable body lockset 12 are arranged on successively the front end of leading portion anchor cable body 1, thus make the front end of leading portion anchor cable body 1 by leading portion anchor cable body lockset 12, leading portion anchor cable body pallet 13 is pressed on the surface of coal column 5, to improve the enabling capabilities of coal column 5 pairs of top boards.
(2) as shown in Figure 4, when rear pick face tunnel initating, excavator can touch guiding tube 4 in mining process, makes it appear, and is then taken off from the first external thread connector 11 by guiding tube 4 by rotating; By the mode of winding steel wire, the front end of back segment anchor cable body 2 and the second external thread connector 21 are connected and fixed, and are threaded connection branch sleeve 3 is fixed on the second external thread connector 21; Branch sleeve 3, second external thread connector 21 and back segment anchor cable body 2 are extend in the straight hole 6 on coal column 5 successively, and make branch sleeve 3 aim at the first external thread connector 11, tighten in the other direction, first external thread connector 11 is threaded with branch sleeve 3, thus completes leading portion anchor cable body 1 and dock with back segment anchor cable body 2; Back segment anchor cable body pallet 23 and back segment anchor cable body lockset 22 are arranged on successively the rear end of back segment anchor cable body 2, thus make the rear end of back segment anchor cable body 2 by back segment anchor cable body lockset 22, back segment anchor cable body pallet 23 is pressed on the surface of coal column 5, to improve the enabling capabilities of coal column 5 pairs of top boards.As mentioned above, just this two-way two-ended cables can be arranged on coal column 5, thus realize effectively reinforcing the coal column 5 of gob side entry driving, greatly improve the enabling capabilities of coal column to top board.
It should be noted that, the utility model embodiment can be made to be applied on the coal column 5 of different in width by the length of adjustment leading portion anchor cable body 1.Guiding tube 4 can adopt plastics of the prior art, rubber or other softer materials to make; In the installation process of this two-way two-ended cables, guiding tube 4 can not only protect the external screw thread on the first external thread connector 11 before tunnel, rear pick face is not dug, and can calibrate the position of leading portion anchor cable body 1 when rear pick face tunnel initating; The length of this guiding tube 4 is generally 1000mm, and this can ensure that guiding tube 4 has certain length of appearing when rear pick face tunnel initating, conveniently finds the position of leading portion anchor cable body 1, to be connected with leading portion anchor cable body 1 by back segment anchor cable body 2 smoothly.
As fully visible, the utility model embodiment not only structure is simple, easy to operate, and can realize two-way to wearing reinforcing coal column, and this improves the enabling capabilities of coal column to top board greatly.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (6)
1. a coal column is reinforced and is used two-way two-ended cables, be arranged on coal column (5), it is characterized in that, comprising: leading portion anchor cable body (1), leading portion anchor cable body lockset (12), leading portion anchor cable body pallet (13), back segment anchor cable body (2), back segment anchor cable body lockset (22), back segment anchor cable body pallet (23) and branch sleeve (3);
Coal column (5) is provided with the straight hole (6) that tunnel, face and tunnel, rear pick face are first adopted in connection; The rear end of leading portion anchor cable body (1) is stretched in this straight hole (6) by first adopting tunnel, face, and the front end of back segment anchor cable body (2) is stretched in this straight hole (6) by tunnel, rear pick face, both are connected and fixed by the branch sleeve (3) be located in this straight hole (6);
The front end of leading portion anchor cable body (1) is in this straight hole (6) tunnel, face of first adopting outward, and leading portion anchor cable body lockset (12) is fixed on the front end of leading portion anchor cable body (1); Leading portion anchor cable body pallet (13) is located between leading portion anchor cable body lockset (12) and coal column (5); Leading portion anchor cable body pallet (13) is pressed on the surface of coal column (5) by the front end of leading portion anchor cable body (1) by leading portion anchor cable body lockset (12);
The rear end of back segment anchor cable body pallet (23) is in this straight hole (6) tunnel, rear pick face outward, and back segment anchor cable body lockset (22) is fixed on the rear end of back segment anchor cable body pallet (23); Back segment anchor cable body pallet (23) is located between back segment anchor cable body lockset (22) and coal column (5); Back segment anchor cable body pallet (23) is pressed on the surface of coal column (5) by the rear end of back segment anchor cable body pallet (23) by back segment anchor cable body lockset (22).
2. two-way two-ended cables according to claim 1, is characterized in that, the middle part of described leading portion anchor cable body (1) is provided with Anchor Agent (14); Leading portion anchor cable body (1) is by the inwall anchoring of Anchor Agent (14) with straight hole (6).
3. two-way two-ended cables according to claim 1 and 2, is characterized in that, described branch sleeve (3) is provided with internal thread; The rear end of described leading portion anchor cable body (1) is provided with the first external thread connector (11); The front end of described back segment anchor cable body (2) is provided with the second external thread connector (21);
Leading portion anchor cable body (1) is threaded with branch sleeve (3) by the first external thread connector (11);
Back segment anchor cable body (2) is threaded with branch sleeve (3) by the second external thread connector (21).
4. two-way two-ended cables according to claim 3, is characterized in that, described the first external thread connector (11) is external screw thread steel pipe; The rear end of leading portion anchor cable body (1) is located in the first external thread connector (11), and is connected and fixed by the mode of winding steel wire and the first external thread connector (11).
5. two-way two-ended cables according to claim 3, is characterized in that, described the second external thread connector (21) is external screw thread steel pipe; The front end of back segment anchor cable body (2) is located in the second external thread connector (21), and is connected and fixed by the mode of winding steel wire and the second external thread connector (21).
6. two-way two-ended cables according to claim 1 and 2, is characterized in that, the aperture of described straight hole (6) is greater than the maximum outside diameter 2mm of leading portion anchor cable body (1) and back segment anchor cable body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646747.XU CN204200254U (en) | 2014-10-31 | 2014-10-31 | A kind of coal column is reinforced and is used two-way two-ended cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646747.XU CN204200254U (en) | 2014-10-31 | 2014-10-31 | A kind of coal column is reinforced and is used two-way two-ended cables |
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| Publication Number | Publication Date |
|---|---|
| CN204200254U true CN204200254U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420646747.XU Expired - Fee Related CN204200254U (en) | 2014-10-31 | 2014-10-31 | A kind of coal column is reinforced and is used two-way two-ended cables |
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| CN (1) | CN204200254U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626111A (en) * | 2015-12-25 | 2016-06-01 | 山东深博巷道支护技术有限公司 | Telescopic two-ended anchor cable for two-direction reinforcing of coal pillar |
| CN106884655A (en) * | 2017-01-10 | 2017-06-23 | 山东建筑大学 | A kind of two-way reinforcement means of gob side entry driving coal column |
| CN108590723A (en) * | 2018-05-24 | 2018-09-28 | 中煤能源研究院有限责任公司 | Gob side entry driving fender erosion control release is to drawing anchoring integral structure and construction method |
| CN109184761A (en) * | 2018-10-29 | 2019-01-11 | 河南大有能源股份有限公司耿村煤矿 | A method of solving two sides rock mass deformation enhances country rock globality |
| CN109441512A (en) * | 2018-11-20 | 2019-03-08 | 华北科技学院 | Armored concrete two-ended cables and its construction method |
| CN113153394A (en) * | 2021-03-10 | 2021-07-23 | 中国矿业大学 | Self-expansion reinforced anchoring type anchor rod structure and method for narrow coal pillar along hollow crossheading end |
-
2014
- 2014-10-31 CN CN201420646747.XU patent/CN204200254U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626111A (en) * | 2015-12-25 | 2016-06-01 | 山东深博巷道支护技术有限公司 | Telescopic two-ended anchor cable for two-direction reinforcing of coal pillar |
| CN105626111B (en) * | 2015-12-25 | 2018-02-23 | 山东深博巷道支护技术有限公司 | A kind of coal column two-way reinforcing concertina type two-ended cables |
| CN106884655A (en) * | 2017-01-10 | 2017-06-23 | 山东建筑大学 | A kind of two-way reinforcement means of gob side entry driving coal column |
| CN106884655B (en) * | 2017-01-10 | 2019-02-22 | 山东建筑大学 | A kind of two-way reinforcement means of gob side entry driving coal column |
| CN108590723A (en) * | 2018-05-24 | 2018-09-28 | 中煤能源研究院有限责任公司 | Gob side entry driving fender erosion control release is to drawing anchoring integral structure and construction method |
| CN109184761A (en) * | 2018-10-29 | 2019-01-11 | 河南大有能源股份有限公司耿村煤矿 | A method of solving two sides rock mass deformation enhances country rock globality |
| CN109184761B (en) * | 2018-10-29 | 2020-03-17 | 河南大有能源股份有限公司耿村煤矿 | Method for solving problem of reinforcing integrity of surrounding rock by deformation of two rock masses |
| CN109441512A (en) * | 2018-11-20 | 2019-03-08 | 华北科技学院 | Armored concrete two-ended cables and its construction method |
| CN113153394A (en) * | 2021-03-10 | 2021-07-23 | 中国矿业大学 | Self-expansion reinforced anchoring type anchor rod structure and method for narrow coal pillar along hollow crossheading end |
| CN113153394B (en) * | 2021-03-10 | 2023-10-27 | 中国矿业大学 | Self-expansion reinforced anchoring type anchor rod structure and method for narrow coal pillar along-void gate way end |
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| 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: 20150311 Termination date: 20161031 |