CN202451184U - Special-shaped section laneway anchor beam supporting of half-edge coal seam - Google Patents
Special-shaped section laneway anchor beam supporting of half-edge coal seam Download PDFInfo
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- CN202451184U CN202451184U CN201120459191XU CN201120459191U CN202451184U CN 202451184 U CN202451184 U CN 202451184U CN 201120459191X U CN201120459191X U CN 201120459191XU CN 201120459191 U CN201120459191 U CN 201120459191U CN 202451184 U CN202451184 U CN 202451184U
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- anchor
- anchor beam
- laneway
- supporting
- coal seam
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Abstract
The utility model discloses a special-shaped section laneway anchor beam supporting of a half-edge coal seam, which includes an anchor beam, an anchor beam head, an anchor beam hole, an anchor screen, anchor beam anchor cables, anchor beam anchor rods, top plate anchor rods, low-cut anchor rods and high-edge anchor rods, and is characterized in that the anchor beam anchor rods and the anchor beam anchor cables anchor the anchor beam on an inclined plane between the top plate and the high edge; and the anchor screen is laid above the anchor beam. The laneway anchor beam supporting provided by the utility model has the benefits that the anchor beam anchor rods and the anchor beam anchor cables anchor the anchor beam on the inclined plane between the top plate and the high edge, and the anchor screen is laid above the anchor beam, the formed combined supporting has high integral stability, can effectively prevent a floppy seam above the laneway from dribbling, can reduce the height of the high edge of the laneway through the adopted special-shaped section, reduces the high edge supporting workload of the laneway, and reduces the labor intensity of workers.
Description
Technical field
The utility model relates to the coal mine support field, particularly half-edge coal seam section tunnel anchor beam supporting.
Background technology
Domesticly seam inclination is divided into gently inclined seam (below 25 °) according to seam inclination classification, inclined seam (greater than 25 ° less than 45 °), half-edge coal seam (45 °--90 °).In roadway support design,, adopt supporting method such as hacking shed tunnel supporting, bolting with wire mesh usually in order not destroy the stability of roof.When seam inclination reaches more than 45 °, adopt the hacking shed tunnel supporting not destroy the roof driving, will cause tunnel two to help highly to increase, and seam inclination is big more, the difference in height that tunnel two is helped is also big more.When seam inclination reaches 45 °, adopt traditional shed shoring, the canopy leg height of the high group in tunnel has just reached 5.2M, and the labor strength that causes the high group in tunnel supporting frame canopy to operate is big very difficult with operation, has had a strong impact on construction speed.In addition; When adopting shed shoring,, big because of time removing the excavation support workload at the coal-face stoping period; Long to the normal back production influence time of coal-face; Also coal-face realization high-yield and high-efficiency has been caused to seriously influence, adopted bolting with wire mesh, can not effectively prevent the inbreak of top, tunnel weak seam because wire lath has certain flexibility.
Summary of the invention
The purpose of the utility model is: solve the deficiency that exists in the prior art; Provide a kind of and below the coal seam at top, tunnel, be provided with anchor beam; The anchor beam top is covered with wire lath; The half-edge coal seam special-shaped section tunnel anchor beam supporting of bolting with wire mesh is helped to adopt in tunnel two, makes half-edge coal seam roadway support easy construction, and security reliability is high.
The technical scheme of the utility model is achieved in that the anchor beam supporting of high-dipping section tunnel; Comprise anchor beam, anchor beam head, anchor beam hole, anchor net, anchor beam anchor cable, anchor beam anchor pole, roofbolt, low-cut anchor pole, high group anchor pole; It is characterized in that anchor beam anchor cable, anchor beam anchor pole are anchored at anchor beam on the inclined plane between top board and the high group; Above anchor beam, be covered with the anchor net, said anchor beam is welded by two sections channel-section steels.
Top board, low-cut, high group adopt bolting with wire mesh, and the mode that anchor beam is fixed on top, tunnel (inclined plane between top board and the high group) is that the anchor beam anchor pole cooperates the anchor beam anchor cable to unite fixing.Use the anchor pole perforator to help and be drilled with bolthole at back, low-cut, height; Spread the anchor net, roofbolt, low-cut anchor pole, high group anchor pole pass the anchor mesh eyes and insert the anchor pole eyelet that top board, low-cut, height are helped respectively, anchor into top board and short, height and help; Bore eyelet in the tilting section between top board and high group; Be layered on the anchor net on the tilting section, be pressed in the anchor net surface to anchor beam again, insert in the eyelet on the tilting section between top board and the high group in the anchor beam hole that anchor beam anchor cable, anchor beam anchor pole pass on the anchor beam; Be fixed on anchor beam on the tilting section between top board and the high group; Pass the anchor beam hole on the anchor head with roofbolt, insert in the anchor hole on the top board, the anchor beam head is pressed on the top board.
The half-edge coal seam section tunnel anchor beam supporting that the utility model provides; Top board cooperates anchor beam anchor pole, anchor beam cable bolting with the monolithic anchor beam that adopt on the inclined plane between the high group; Can make anchor pole, anchor cable form supporting integral body, give full play to the combined supporting effect of anchor pole, anchor cable, because anchor cable length is longer than anchor pole; The anchor point of anchor cable is in stable rock stratum, deep; The effect of reinforcement is played in bolt support, and the anchor cable of employing cooperates the bolt support mode, can better improve the stability in tunnel in ground.
The beneficial effect of the utility model is: adopt anchor beam anchor cable, anchor beam anchor pole that anchor beam is anchored on the inclined plane between top board and the high group; Above anchor beam, be covered with the anchor net; The combined supporting resistance to overturning that forms is good, can effectively prevent the inbreak of top, tunnel weak seam, adopts section can reduce the height of the high group in tunnel; Reduce the height group support work amount in tunnel, alleviated working strength of workers.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is the anchor beam structural representation
Fig. 3 is the vertical view of Fig. 2
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further; Like Fig. 1, Fig. 2, shown in Figure 3: the anchor beam supporting of half-edge coal seam section tunnel comprises anchor beam 1, anchor beam head 2, anchor beam hole 3, anchor net 4, base plate 5, top board 6, coal seam dirt band 7, coal seam 8, anchor beam anchor cable 9,12, anchor beam anchor pole 10,11, roofbolt 13,14,15,16, low- cut anchor pole 17,18,19, high group anchor pole 20,21,22.
The tunnel anchor beam supporting of said half-edge coal seam section is as shown in Figure 1, and the fixing agent for anchor poles that anchor beam anchor pole 10,11, roofbolt 13,14,15,16 adopt is a resin anchor, and bolt diameter is φ 20mm; Rock-bolt length is 2500mm, and the anchor rod body that low- cut anchor pole 17,18,19, high group anchor pole 20,21,22 adopt is a full thread dextrorotation anchor pole, and bolt diameter is φ 20mm; Rock-bolt length is 2000mm; The anchor cable diameter of anchor beam anchor cable 9,12 is φ 15.24mm, and anchor cable length 4300mm, anchor beam 1 use No. 14 hot rolling common channel-section steels of a segment length as 2160mm; Become 95 ° of welding to form with a segment length for No. 14 common channel-section steels of hot rolling of 300mm; Anchor beam head 2 bores the anchor beam hole 3 that diameter is 60mm, bores 4 anchor beam holes 3 that diameter is 75mm on the anchor beam 1, is used to install anchor beam anchor cable 9,12 and anchor beam anchor pole 10,11.High-dipping tunnel section is designed and sized to lanewidth 3.5m, and the lane height guarantees that centre-height is no more than 3.5m, the high 1.8m of low-cut, the high high 2.1m of group, anchor beam 1 be β=30 ° to vertical angle.Use anchor pole jewel hole machine on the top board face, to make a call to 4 boltholes perpendicular to top board, spacing is 800mm, spreads anchor net 4; Roofbolt 14,15,16 passes respectively in the good bolthole of anchor net 4 insertion brills and anchors into top board, on low-cut, high group face, makes a call to 3 boltholes respectively from top to bottom, and spacing is 800mm; Two help last two boltholes on the face all vertically to help face; Spread anchor net 4, low- cut anchor pole 17,18, high group anchor pole 21,22 pass the anchor net 4 short, that height is helped respectively, insert the normal bolting hole short, that height is helped; Anchor on short, the high group face; Two help on the face under bolthole and group's face be drilled to 60 ° angling hole, low-cut anchor pole 19, high group anchor pole 20 pass the angling hole that the anchor net 4 of helping inserts on short, the high group face respectively, are anchored on short, the high group face.On the inclined plane between top board and the high group, bore two inclination bolthole and two inclination anchor cable eyes that do not parallel with the coal seam; Be layered on anchor net 4 then and bore on the good eyelet; Be pressed in anchor beam 1 on 4 on the anchor net again; Anchor beam anchor cable 9,12, anchor beam anchor pole 10,11, pass the anchor beam hole 3 on the anchor beam 1, insert and bore good bolthole and anchor cable eye and be anchored at anchor beam 1 on the inclined plane of top board and high group, roofbolt 13 passes anchor beam hole 3 on the anchor head 1 and inserts top boards and bore in the bolthole well; Make anchor beam head 2 compress top board, anchor pole is identical with prior art with the anchor cable construction technology.
Claims (2)
1. half-edge coal seam section tunnel anchor beam supporting; Mainly comprise anchor beam (1), anchor beam head (2), anchor beam hole (3), anchor net (4), anchor beam anchor cable (9,12), anchor beam anchor pole (10,11), roofbolt (13,14,15,16), low-cut anchor pole (17,18,19), high group anchor pole (20,21,22); It is characterized in that anchor beam anchor cable (9,12), anchor beam anchor pole (10,11) are anchored at anchor beam (1) on the inclined plane between top board and the high group, are covered with anchor net (4) in the top of anchor beam (1).
2. according to the tunnel anchor beam supporting of the said half-edge coal seam section of claim 1, it is characterized in that anchor beam (1) is welded by two sections channel-section steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120459191XU CN202451184U (en) | 2011-11-18 | 2011-11-18 | Special-shaped section laneway anchor beam supporting of half-edge coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120459191XU CN202451184U (en) | 2011-11-18 | 2011-11-18 | Special-shaped section laneway anchor beam supporting of half-edge coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451184U true CN202451184U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120459191XU Expired - Fee Related CN202451184U (en) | 2011-11-18 | 2011-11-18 | Special-shaped section laneway anchor beam supporting of half-edge coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569675A (en) * | 2016-03-16 | 2016-05-11 | 重庆工程职业技术学院 | Roadway support method and structure for steeply pitching seam |
-
2011
- 2011-11-18 CN CN201120459191XU patent/CN202451184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569675A (en) * | 2016-03-16 | 2016-05-11 | 重庆工程职业技术学院 | Roadway support method and structure for steeply pitching seam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20131118 |