CN203614064U - Steel band with adjustable anchor rod hole pitches - Google Patents
Steel band with adjustable anchor rod hole pitches Download PDFInfo
- Publication number
- CN203614064U CN203614064U CN201320636712.3U CN201320636712U CN203614064U CN 203614064 U CN203614064 U CN 203614064U CN 201320636712 U CN201320636712 U CN 201320636712U CN 203614064 U CN203614064 U CN 203614064U
- Authority
- CN
- China
- Prior art keywords
- steel band
- anchor rod
- anchor
- bolthole
- adjustable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 239000011295 pitch Substances 0.000 title abstract 6
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 239000011435 rock Substances 0.000 abstract description 26
- 230000008093 supporting effect Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Abstract
The utility model discloses a steel band with adjustable anchor rod hole pitches. The steel band is adapted to be applied to the conditions that the surrounding rock is unstable and the anchor rod pitches are required to be adjusted in time. The steel band consists of a reinforcing steel bar rail beam, sliding anchor rod trays, anchor rod holes, sliding sleeves and inverted wedge locking plates, wherein the sliding anchor rod trays can slide horizontally along the reinforcing steel bar rail beam, so that the pitch between every two anchor rods can be adjusted. Compared with the prior art, the pitch between the anchor rods is adjustable, so that the anchor rods are installed and are reinforced at the most suitable positions. According to the steel band with the adjustable anchor rod hole pitches, the number of the materials used by the steel band is reduced by adopting a reinforcing steel bar ladder beam, the utilization rate of the materials is increased, and the supporting strength is guaranteed on the premise of not increasing the support density of the anchor rods; the steel band has wide applicability.
Description
Technical field
The utility model relates to a kind of steel band, especially a kind of adjustable steel band of bolthole spacing that is applicable to supporting roadway surrounding rock,
Background technology
Steel band is the important component in combined bolt support system.It changes force-bearing of surrounding rock mass state, have backwater effect, the country rock between anchor pole is the weakness zone of supporting, utilizes the high-tensile of steel band, the anchor support force of anchor pole is converted into the jacking force of steel band to country rock, makes country rock surface be compressed, make anchor pole anchor support force to be more reasonably distributed in country rock.Form extruding Strengthening Roof, reinforce rock beam, reduce amount of deflection, reduce the suffered stretch-draw intensity of top board.Steel band can also reduce the suffered flexure stress of rock beam and coordinate rockbolt stress, reduces the pressure that roadway's sides bears.
The most frequently used in colliery is flat strip steel, W steel band of model, M steel band of model, Ц steel band of model and reinforcing bar ladder beam.It is larger that flat strip steel protects top area, and quality is less, and processing is simple, can play certain protection top board effect; But rigidity is very little, poor to the supporting effect of top board, in the situation that pressure is large, easily tear.W steel band of model flexural strength is high, protects top upper and amasss greatly, is suitable for top board crack and relatively grows, the condition that pressure is little.M shape steel band is easy to be close to top board scar when steel band is installed, and while crushing distortion, steel band forms one in country rock, has solved the problem that W steel band of model is easy to tear, and steel utilization ratio is high.Ц steel band of model: be not firm for reinforcing bar ladder beam solder joint, globality is poor, develops with the defect of country rock loose contact.But it is very little to protect top effect, is applicable to roadside support.Reinforcing bar ladder: the processing of reinforcing bar beam is simple, easy to use, low price.But flexural strength and area coverage are not as W steel band, and when roof pressure is larger, reinforcing bar ladder beam weld easily ftractures.
Although above-mentioned conventional steel band can play certain support action, due to above-mentioned steel band produce time fixed anchor pole spacing.In the support system that, anchor pole spacing changeable at improving stability of surrounding rocks in roadway needs to adjust flexibly, the anchored force of the fixing anchor pole of spacing can not all reach supporting effect, does not also just reach the final purpose of bolt support.
Summary of the invention
The purpose of this utility model is the weak point overcoming in prior art, provide a kind of simple in structure, adapt to the adjustable steel band of bolthole spacing in anchor pole spacing is changeable, surrounding rock stability differs roadway supporting system.
For achieving the above object, the adjustable steel band of bolthole spacing of the present utility model, comprise the reinforcing bar rail beam of bar annular, reinforcing bar rail beam is provided with multiple slip anchor rod pallet boards that can horizontally slip along reinforcing bar rail beam, described slip anchor rod pallet board is made up of upper low sleeve and junction plate, has bolthole on junction plate.
In described sliding sleeve, be provided with the sheet of falling wedge yoke; The number of described multiple slip anchor rod pallet boards is set according to the number of fixing anchor bar.
Beneficial effect: the utility model can, according to concrete country rock actual conditions adjustment slip anchor rod pallet board to best position, be brought into play the enabling capabilities of anchor pole steel band to greatest extent.The bolthole being fixed on steel band is become to the anchor rod pallet board that movably slides, can regulate the distance between anchor pole according to different roadway surrounding rock conditions, realize anchor pole spacing adjustable.Make its skyhook reinforcing on most suitable position.Anchor pole is arranged and suitably can be made it in country rock, form one to have certain thickness evenly continuously compression band, be regarded as take roadway's sides rock mass as fulcrum, have certain thickness beded rock mass compound beam.Outside compound beam, anchor is reinforced the steel band of a tension, can not only keep the stable of country rock self, and can bear pressure and stop the loosening of top country rock and be out of shape, increase the frictional force between joint fissure face or sillar, prevent rotation and the slip of sillar, uniformization of point load that can also make anchor pole form, expand the supporting scope of anchor pole, anchor pole is associated with each other, some anchor poles share a steel band and apply member as anchor support force, form an integer support structure, force-bearing of surrounding rock mass distortion evenly, avoid local the becoming flexible of appearance break or leak top, anchor pole isolates phenomenon, effectively controlled fragmentation top board.Meanwhile, adopt reinforcing bar ladder beam for the quantity that has reduced steel band use material, increased the utilization rate of material, under the prerequisite of support density that does not increase anchor pole, guaranteed supporting intensity.Be particularly useful for country rock unstable, anchor pole spacing needs the wall rock condition of adjusting in time.
Accompanying drawing explanation
Fig. 1 is the structural representation of removable bolthole anchoring steel band described in the utility model.
Fig. 2 is the schematic diagram in I-I cross section in Fig. 1.
In figure: 1-reinforcing bar rail beam, 2-slip anchor rod pallet board, 2-1-bolthole, 2-2-sliding sleeve, the 2-3-sheet of falling wedge yoke
The specific embodiment
Below in conjunction with accompanying drawing, an enforcement of the present utility model is further described:
The adjustable steel band of bolthole spacing of the present invention, is mainly made up of reinforcing bar rail beam 1 and the slip anchor rod pallet board 2 of bar annular, and slip anchor rod pallet board 2 is multiple, and the number of described multiple slip anchor rod pallet boards 2 is set according to the number of fixing anchor bar.Slip anchor rod pallet board 2 can horizontally slip along reinforcing bar rail beam 1, thereby realizes the adjustment of anchor pole spacing.Described slip anchor rod pallet board 2 is made up of upper low sleeve 2-2 and junction plate, has bolthole 2-1 on junction plate; In described sliding sleeve 2-2, be provided with the sheet of falling wedge yoke 2-3.In use procedure, can, according to the concrete wall rock condition in scene, determine at best anchor pole and install position, and with the 2-3-sheet of falling wedge yoke, tightly embed 2-2 sliding sleeve, realize slip anchor rod pallet board 2 fixing at reinforcing bar rail beam 1.
In use can be according to the concrete wall rock condition in scene, determine that anchor pole needs the optimum position of anchoring, on the reinforcing bar rail beam of the both sides of reinforcing bar ladder beam, install the slip anchor rod pallet board of some, offer one in the central authorities of each pallet and adapt to the bolthole that anchor pole passes.When use, determine the position of armature boring according to improving stability of surrounding rocks in roadway or on-the-spot actual needs, then slide tray is to this place, and tightens up with the sheet of falling wedge yoke 2-2, realizes anchor pole spacing adjustable.Finally in bolthole, beat anchor pole supporting is carried out in tunnel, form combined bolt support system.Slip anchor rod pallet board 2 is moved to this and determine position, its bolthole 2-1 is overlapped with the required anchorage point of anchor pole.And with the sheet of falling wedge yoke 2-3, tightly embed in sliding sleeve 2-2, thereby it is fixing at reinforcing bar rail beam 1 to realize slip anchor rod pallet board 2.Finally in bolthole 2-1, squeeze into anchor pole supporting is carried out in tunnel, thereby realize the flexible adjustment of anchor pole spacing.Bring into play to greatest extent anchor rod anchored effectiveness, improve supporting effect.
Claims (3)
1. the adjustable steel band of bolthole spacing, it is characterized in that: it comprises the reinforcing bar rail beam (1) of bar annular, reinforcing bar rail beam (1) is provided with multiple slip anchor rod pallet boards (2) that can horizontally slip along reinforcing bar rail beam (1), described slip anchor rod pallet board (2) is made up of upper low sleeve (2-2) and junction plate, has bolthole (2-1) on junction plate.
2. the adjustable steel band of bolthole spacing according to claim 1, is characterized in that: in described sliding sleeve (2-2), be provided with the sheet of falling wedge yoke (2-3).
3. the adjustable steel band of bolthole spacing according to claim 1, is characterized in that: the number of described multiple slip anchor rod pallet boards (2) is set according to the number of fixing anchor bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636712.3U CN203614064U (en) | 2013-10-15 | 2013-10-15 | Steel band with adjustable anchor rod hole pitches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636712.3U CN203614064U (en) | 2013-10-15 | 2013-10-15 | Steel band with adjustable anchor rod hole pitches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614064U true CN203614064U (en) | 2014-05-28 |
Family
ID=50766716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320636712.3U Expired - Lifetime CN203614064U (en) | 2013-10-15 | 2013-10-15 | Steel band with adjustable anchor rod hole pitches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614064U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612729A (en) * | 2014-11-27 | 2015-05-13 | 中国矿业大学(北京) | Asymmetric anchor beam structure and supporting method for goaf-side roadway roof |
| CN108346365A (en) * | 2018-01-11 | 2018-07-31 | 青岛本末岩控技术有限公司 | The anchor rod anchored pull-out test teaching mode of changeable Bolting Parameters |
| CN110513133A (en) * | 2019-07-08 | 2019-11-29 | 关辉 | A kind of assembled M formed steel construction with sliding bottom |
-
2013
- 2013-10-15 CN CN201320636712.3U patent/CN203614064U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612729A (en) * | 2014-11-27 | 2015-05-13 | 中国矿业大学(北京) | Asymmetric anchor beam structure and supporting method for goaf-side roadway roof |
| CN108346365A (en) * | 2018-01-11 | 2018-07-31 | 青岛本末岩控技术有限公司 | The anchor rod anchored pull-out test teaching mode of changeable Bolting Parameters |
| CN110513133A (en) * | 2019-07-08 | 2019-11-29 | 关辉 | A kind of assembled M formed steel construction with sliding bottom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |