CN105401976B - Region anti-burst method is stitched in the sawing of seat earth rope - Google Patents
Region anti-burst method is stitched in the sawing of seat earth rope Download PDFInfo
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- CN105401976B CN105401976B CN201511026615.2A CN201511026615A CN105401976B CN 105401976 B CN105401976 B CN 105401976B CN 201511026615 A CN201511026615 A CN 201511026615A CN 105401976 B CN105401976 B CN 105401976B
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- Prior art keywords
- rope
- sawing
- directional drilling
- stitched
- winch
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Abstract
Region anti-burst method is stitched the invention discloses a kind of seat earth rope sawing, step 1. verifies ocurrence of coal seam situation；Step 2. tunnels two crossdrifts to coal seam respectively in two extraction lanes of upper and lower different level, forms four crossdrifts for being parallel to each other and arranging in quadrangle；Step 3. implements directional drilling with directional drilling machine, by two neighboring crossdrift insertion, and four directional drillings connect the moraine head of four crossdrifts, form quadrangle passage；The directional drilling machine of step 4. completion directional drilling strop saw when moving back brill is placed in corresponding directional drilling, and finally the rope saw in four directional drillings is together in series；Step 5. stitches winch in one of crossdrift moraine head installing rope sawing of lower absolute altitude, and the rope being together in series using sawing seam winch driving of restricting is sawed, and is constantly tightened up cutting rope, is carried out joint-cutting operation.This method construction volume is smaller, and the time is shorter, and cost is relatively low, and protrusion-dispelling effect is preferable.
Description
Technical field
The invention belongs to prevent and treat the technical field of coal and gas prominent region anti-burst method, more particularly to a kind of coal seam bottom
Region anti-burst method is stitched in the sawing of plate rope.
Background technology
At present, there are exploitation protective layer and region pre- for the region anti-burst method that preventing and treating coal and gas prominent is taken both at home and abroad
The class of coal-bed gas 2 is taken out, and it is most efficient method to exploit protective layer.But, exploitation protective layer cost is high, the time is long, moreover absolutely
Most of protective layers also have outburst hazard in itself, it is also necessary to implement region anti-burst method, once protective layer gas control is imitated
The really poor, time is long, by influence whole colliery safely, take over deployment, benefit, thus exploitation protective layer is also the bottle of the restriction overall situation
Neck.
The content of the invention
Region protrusion-dispelling side is stitched it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of seat earth rope sawing
Method, this method cuts out a crack parallel to coal seam using rope saw in seat earth, promotes coal seam pressure relief, reaches that elimination is prominent
Go out the purpose of danger, construction volume is smaller, and the time is shorter, and cost is relatively low, and protrusion-dispelling effect is preferable.
The object of the present invention is achieved like this：
Region anti-burst method is stitched in a kind of seat earth rope sawing, and this method is carried out according to the following steps：
Step 1. verifies ocurrence of coal seam situation
Implement geology inspecting hole to coal seam in extraction lane, verify ocurrence of coal seam situation；
Step 2. crosscutting
Two crossdrifts are tunneled to coal seam respectively in two extraction lanes of upper and lower different level, formation is parallel to each other and arranged
In four crossdrifts of quadrangle, crossdrift stops head near seat earth, and supporting is intact, crossdrift moraine head and seat earth normal away from
Determined to meet coal seam dilatancy requirement；
Step 3. construction directional drilling
Implement directional drilling with directional drilling machine, by two neighboring crossdrift insertion, four directional drillings are by the moraine of four crossdrifts
Head connection, forms quadrangle passage, and directional drilling is determined with seat earth normal distance with meeting coal seam dilatancy requirement；
Step 4. placement rope saw
The directional drilling machine of completion directional drilling strop saw when moving back brill is placed in corresponding directional drilling, finally by four
Rope saw in individual directional drilling is together in series；
Step 5. implements joint-cutting operation
Winch is stitched in one of crossdrift moraine head installing rope sawing of lower absolute altitude, sawing seam winch driving is connected using restricting
The rope saw come, is carried out in joint-cutting operation, joint-cutting operation process, constantly tightens up cutting rope, until completing joint-cutting, is formed and coal seam phase
Adjacent joint-cutting.
Further, in step 1, after geology inspecting hole, coal seam floor contour map is drawn, geologic report is worked out, for driving
Crossdrift and construction directional drilling provide underlying parameter.
Further, in step 3, drilling is cleaned multiple times after construction directional drilling, to reduce mud and sand silting.
Further, in step 4, when placement rope saw, wirerope is oriented to while being installed using directional drilling machine guiding, with
Restricted as the later stage and dispose the guide rope of rope saw after serrula is so broken again.
In order that rope saw is from unilateral joint-cutting, reduces rope saw friction area, reduce joint-cutting difficulty, it is preferable that in step 4,
One of crossdrift moraine head installing rope saw leading block of upper absolute altitude, the crossdrift moraine head stitches the crossdrift moraine of winch with installing rope sawing
Head is located at homonymy.
In order to discharge a small amount of gas in quadrangle passage, it is preferable that in step 5, using booster to quadrangle
Passage is aerated.
Further, in step 5, the coolant for cooling down rope saw is arranged in the rope-in end of rope sawing seam winch, each
The rope-in end sprinkling cooling deslagging water of directional drilling.Make directional drilling rope-out end deslagging more unobstructed, rope saw keeps low temperature cutting, prevents
Only rope saw overheat fusing.
In order to which gradually cinch cord is sawed, and rope saw recovery is synchronously completed, improve operating efficiency, further, in step 5, with
The gradually increase of joint-cutting area, unnecessary rope saw is reclaimed immediately, is reclaimed rope saw and is coordinated traction to twist using orbit determination movable pulley mechanism
Car is completed：The track that movable pulley mechanism is set in the crossdrift of winch is stitched in installing rope sawing, movable pulley mechanism is arranged on the rail
The front end in road, the pulley connecting rope saw of movable pulley mechanism, draws movable pulley mechanism, when movable pulley is drawn to rail with pulling winch
During the road end, pause joint-cutting operation manually unload rope reclaim rope saw, then by movable pulley move on to track front end connect rope saw recovery cut
Stitch operation, rope sawing seam winch and pulling winch synchronous interaction.
In order to find most suitable joint-cutting area, further, in step 2, the spacing between each crossdrift is according to rope sawing
The tractive force size for stitching winch and pulling winch is determined.
In order to ensure protrusion-dispelling effect, security risk is prevented, further, in addition to step 6. effect expedition, pass through coal seam
Dilatancy amount and gas remainder quantity investigate joint-cutting region protrusion-dispelling effect：After the completion of joint-cutting, firedamp taking-out discharging drilling is arranged,
Coal seam dilatancy amount is investigated, after after mash gas extraction decay, coal sample progress is extracted by the way of region method validity check residual
Remaining gas bearing capacity is determined.
By adopting the above-described technical solution, the present invention has the advantages that：
1. this method rock stratum near rope saw cut seat earth, forms a crack parallel with coal seam, promotes coal seam
Be subjected to displacement deformation to fractuer direction, so as to increase coal seam porosity, improve Permeability Coefficent in Coal Seam, make coal seam adsorption gas by
Step desorption, reaches the effect of exploitation protective layer.
2. extraction lane is the tunnel that underground coal mine must construct, it is the cloth in existing extraction lane to implement rope sawing seam operation
Four small crossdrifts are put, roadway engineering amount about 100m, tunnel initating investment is small.
3. rope saw will not be contacted to rope sawing seam winch capacity direction (approximately along directional drilling) motion in operation process
Coal seam, so will not protrude, the gas amount gushed out also will not be very big, into after seam, and coal seam is in crustal stress and gas stress
To fractuer direction displacement deformation under effect, the dilatancy amount in coal seam is reached 3 ‰, reach the effect of exploitation protective layer, no coal
With Gas Outburst security risk, safe and reliable, the improvement time is controllable.
Brief description of the drawings
Fig. 1 is rope sawing seam elevational schematic view；
Fig. 2 is rope sawing seam diagrammatic cross-section.
Reference
In accompanying drawing, 1 is upper absolute altitude extraction lane, and 2 be lower absolute altitude extraction lane, and 3 be directional drilling, and 4 be diamond rope saw, and 5 are
Crossdrift, 6 be leading block, and 7 be rope sawing seam winch, and 8 be coal seam, and 9 be movable pulley mechanism, and 10 be pulling winch, and 11 be coal seam
Bottom plate.
Embodiment
Embodiment
Region anti-burst method is stitched in a kind of seat earth rope sawing, and the equipment of use includes 500m directional drilling machines and with being arranged
It is standby, diamond rope saw, endless rope winch etc..
Step 1. verifies ocurrence of coal seam situation
Implement geology inspecting hole to coal seam in extraction lane, verify ocurrence of coal seam situation, draw coal seam floor contour map, establishment
Geologic report, is that crosscutting and construction directional drilling provide underlying parameter.
Step 2. crosscutting
Two crossdrifts are tunneled to coal seam respectively in two extraction lanes of upper and lower different level, formation is parallel to each other and arranged
In four crossdrifts of quadrangle, crossdrift is in seat earth normal away from stopping head at 2m, and supporting is intact；The strike separation of four crossdrifts
For more than 200m, tendency spacing is 60m or so, you can form the seam face that an area is 1.2 ten thousand square metres.
Step 3. construction directional drilling
Implement directional drilling with large-power directional rig, by two neighboring crossdrift insertion, four directional drillings are by four stones
The moraine head connection of door, forms quadrangle passage, and drilling is roughly parallel to seat earth, directional drilling and seat earth normal distance
Determined with meeting coal seam dilatancy requirement, about design and be changed to away from seat earth in 1~5m, while coal seam must not be contacted.
Drilling is cleaned multiple times after construction directional drilling, to reduce mud and sand silting.
Capital equipment involved by directional drilling construction has 500m directional drilling machines and a corollary equipment, diameter 20mm or so gold
Hard rock rope is sawed, high-power electrodeless rope winch etc..Above equipment is all ripe existing equipment, and progress only need to be contacted with equipment vendors
Ability is improved and model confirms, you can come into operation.
Step 4. disposes diamond rope saw
The directional drilling machine for completing directional drilling guides diamond rope saw to be placed in corresponding directional drilling when moving back brill, most
The diamond rope saw in four directional drillings is together in series afterwards；When diamond rope saw is disposed, while utilizing Directional Drilling
Power traction, which is led, installs wear-resisting guiding wirerope, to dispose leading for diamond rope saw again after being broken suddenly as later stage diamond rope saw
Messenger.Diamond rope saw leading block is installed in one of crossdrift moraine head of upper absolute altitude, the crossdrift moraine head is with installing diamond
The crossdrift moraine head that winch is stitched in sawing of restricting is located at homonymy.
Step 5. implements joint-cutting operation
Diamond rope saw joint-cutting winch is installed in one of crossdrift moraine head of lower absolute altitude, twisted using diamond rope saw joint-cutting
The diamond rope saw that car driving is together in series, is carried out in joint-cutting operation, joint-cutting operation process, cutting rope is constantly tightened up, until complete
Into joint-cutting, the joint-cutting adjacent with coal seam is formed.
During joint-cutting operation, quadrangle passage is aerated using booster.In diamond rope saw joint-cutting winch
The coolant sawed for cooling diamond rope is arranged in rope-in end, in the rope-in end sprinkling cooling deslagging water of each directional drilling.It is fixed to make
More unobstructed to drilling rope-out end deslagging, diamond rope saw keeps low temperature cutting, prevents diamond rope saw overheat fusing.
With the gradually increase of joint-cutting area, unnecessary diamond rope saw is reclaimed immediately, reclaims diamond rope saw using fixed
Rail movable pulley mechanism coordinates pulling winch to complete：Long 15m dynamic cunning is set in the crossdrift for installing diamond rope saw joint-cutting winch
The track of mechanism is taken turns, movable pulley mechanism is arranged on to the front end of the track, the pulley connection diamond rope saw of movable pulley mechanism is used
Pulling winch draws movable pulley mechanism, when movable pulley is drawn to tail track, and pause joint-cutting operation manually unloads rope and reclaims gold
Hard rock rope is sawed, and movable pulley then is moved on into track front end connects diamond rope saw recovery joint-cutting operation, and diamond rope saw joint-cutting is twisted
Car and pulling winch synchronous interaction.
Step 6. effect expedition, joint-cutting region protrusion-dispelling effect is investigated by coal seam dilatancy amount and gas remainder quantity
Really：After the completion of joint-cutting, firedamp taking-out discharging drilling is arranged, coal seam dilatancy amount is investigated, after after mash gas extraction decay, using region
The mode of method validity check extracts coal sample and carries out gas remainder quantity measure.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. region anti-burst method is stitched in a kind of seat earth rope sawing, it is characterised in that this method is carried out according to the following steps：
Step 1. verifies ocurrence of coal seam situation
Implement geology inspecting hole to coal seam in extraction lane, verify ocurrence of coal seam situation；
Step 2. crosscutting
Two crossdrifts are tunneled to coal seam respectively in two extraction lanes of upper and lower different level, formation is parallel to each other and arranged in four
Four crossdrifts of side shape, crossdrift stops head near seat earth, and supporting is intact, crossdrift moraine head and seat earth normal distance with
Meet coal seam dilatancy requirement and determine；
Step 3. construction directional drilling
Implement directional drilling with directional drilling machine, by two neighboring crossdrift insertion, four directional drillings connect the moraine head of four crossdrifts
It is logical, quadrangle passage is formed, directional drilling is determined with seat earth normal distance to meet coal seam dilatancy requirement；
Step 4. placement rope saw
The directional drilling machine of completion directional drilling strop saw when moving back brill is placed in corresponding directional drilling, finally fixed by four
Rope saw into drilling is together in series；
Step 5. implements joint-cutting operation
Winch is stitched in one of crossdrift moraine head installing rope sawing of lower absolute altitude, sawing seam winch drives what is be together in series using restricting
Rope saw, is carried out in joint-cutting operation, joint-cutting operation process, constantly tightens up cutting rope, until completing joint-cutting, is formed adjacent with coal seam
Joint-cutting.
2. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that in step 1, geology
After inspecting hole, coal seam floor contour map is drawn, geologic report is worked out, is that crosscutting and construction directional drilling provide basis ginseng
Number.
3. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that in step 3, construction
Drilling is cleaned multiple times after directional drilling, to reduce mud and sand silting.
4. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that in step 4, in peace
When putting rope saw, wirerope is oriented to while guiding to install using directional drilling machine, to pacify again after being so broken as later stage rope serrula
Put the guide rope of rope saw.
5. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that in step 4, upper
One of crossdrift moraine head installing rope saw leading block of absolute altitude, the crossdrift moraine head stitches the crossdrift moraine head of winch with installing rope sawing
Positioned at homonymy.
6. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that in step 5, use
Booster is aerated to quadrangle passage.
7. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that in step 5, in rope
The coolant for cooling down rope saw is arranged in the rope-in end of sawing seam winch, in the rope-in end sprinkling cooling deslagging of each directional drilling
Water.
8. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that in step 5, with
The gradually increase of joint-cutting area, unnecessary rope saw is reclaimed immediately, is reclaimed rope saw and is coordinated pulling winch using orbit determination movable pulley mechanism
Complete：The track that movable pulley mechanism is set in the crossdrift of winch is stitched in installing rope sawing, movable pulley mechanism is arranged on the track
Front end, movable pulley mechanism pulley connecting rope saw, with pulling winch draw movable pulley mechanism, when movable pulley is drawn to track
During the end, rope recovery rope saw is manually unloaded in pause joint-cutting operation, and movable pulley then is moved on into track front end connects rope saw recovery joint-cutting
Operation, rope sawing seam winch and pulling winch synchronous interaction.
9. region anti-burst method is stitched in seat earth rope sawing according to claim 8, it is characterised in that in step 2, each stone
Spacing between door is determined according to the tractive force size of rope sawing seam winch and pulling winch.
10. region anti-burst method is stitched in seat earth rope sawing according to claim 1, it is characterised in that also including step
6. effect expedition, joint-cutting region protrusion-dispelling effect is investigated by coal seam dilatancy amount and gas remainder quantity：When joint-cutting is completed
Afterwards, firedamp taking-out discharging drilling is arranged, coal seam dilatancy amount is investigated, after after mash gas extraction decay, using region method validity check
Mode extract coal sample carry out gas remainder quantity measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026615.2A CN105401976B (en) | 2015-12-30 | 2015-12-30 | Region anti-burst method is stitched in the sawing of seat earth rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026615.2A CN105401976B (en) | 2015-12-30 | 2015-12-30 | Region anti-burst method is stitched in the sawing of seat earth rope |
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| CN105401976A CN105401976A (en) | 2016-03-16 |
| CN105401976B true CN105401976B (en) | 2017-08-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106320978B (en) * | 2016-08-30 | 2018-05-25 | 中煤科工集团西安研究院有限公司 | Level course method for drafting based on downhole orientation hole |
| CN113236348A (en) * | 2021-06-30 | 2021-08-10 | 平顶山市安泰华矿用安全设备制造有限公司 | Coal seam slit gas treatment outburst prevention process |
| CN113622912B (en) * | 2021-07-30 | 2024-03-12 | 平顶山市安泰华矿用安全设备制造有限公司 | Outburst elimination technology for coal mining |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101280688B (en) * | 2008-05-27 | 2011-05-04 | 河南理工大学 | Reagional eliminating method for drilling along the top at prominent coal heading face |
| CN102383830B (en) * | 2011-09-30 | 2014-12-24 | 中煤科工集团重庆研究院有限公司 | Comprehensive outburst prevention method for outburst coal seam region |
| CN102562057B (en) * | 2012-02-14 | 2014-02-26 | 中国有色桂林矿产地质研究院有限公司 | Construction method for cutting solution fissure of salt ore |
| CN103775121B (en) * | 2014-01-20 | 2015-09-30 | 中国矿业大学 | A kind of hydraulic slotted liner technique U-shaped hole deslagging mash gas harnessing method |
| CN104234738B (en) * | 2014-07-21 | 2017-08-15 | 河南理工大学 | A kind of hypotonic coal seam multiple-limb directional drilling slot anti-reflection method |
| CN104675426A (en) * | 2014-12-16 | 2015-06-03 | 中建城开建设集团有限公司 | Gas outburst prevention construction method suitable for unprotected single coal seam mining |
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