CN103758520A - Sharp inclined coal seam flexible shield support multi-step coal mining method - Google Patents
Sharp inclined coal seam flexible shield support multi-step coal mining method Download PDFInfo
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- CN103758520A CN103758520A CN201310743965.5A CN201310743965A CN103758520A CN 103758520 A CN103758520 A CN 103758520A CN 201310743965 A CN201310743965 A CN 201310743965A CN 103758520 A CN103758520 A CN 103758520A
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Abstract
The invention discloses a sharp inclined coal seam flexible shield support multi-step coal mining method which comprises the steps of step formation, hole drilling, blasting, coal digging, support and hole support disassembly. The method disclosed by the invention has the advantages of simple roadway layout and strong adaptability to geological change, and can realize multi-point synchronous operation, thereby increasing the single face output.
Description
Technical field
The present invention relates to a kind of coal-mining method.Be specifically related to a kind of half-edge coal seam flexible type shield staged coal-mining method.
Background technology
In steeply-inclined seam mining process, exploitation is in the past all that separate unit stepwise is produced, and production efficiency is low, and workman's safety is also influenced, so the mode of consideration design multi-stage stairs is mined, improves the safety production situation of half-edge coal seam.
Summary of the invention
The object of the invention is to realize the back production simultaneously of many steps, improve the single rate of half-edge coal seam work plane, and ensure the safety of operating worker.
In order to achieve the above object, the present invention has following technical scheme:
A kind of half-edge coal seam flexible type shield of the present invention staged coal-mining method, comprises the following steps:
(1) ladder forms technique
The first step: No. 1 eye mouthful support is torn in storehouse open; upwards push to adopt 6.0 meters of layout No. 1 storehouses, the 1st ladder →, No. 1 storehouse and tear again an eye mouthful support open; upwards push to adopt 1.0-2.0 rice and arrange that two, No. 1 storehouse, the 2nd ladder →, No. 1 storehouse ladder pushes to adopt forward No. 1 storehouse, 4.0-5.0 rice → simultaneously and tears eye mouthful support open again, upwards push to adopt 1.0-2.0 rice and arrange No. 1 the 3rd, storehouse ladder;
(2) normally push to adopt
Second step: in No. 1 storehouse, 3 ladders normally push to adopt simultaneously, treats that No. 1 the 1st, storehouse ladder pushes to adopt 5 meters of No. 1 storehouse upper ends of distance and stops;
(3) pushing to adopt No. 1 storehouse upper end or more than 2 storehouse changeover portion
The 3rd step: first carry out No. 2 storehouses and tear eye mouthful support open, upwards push to adopt 6.0 meters and arrange No. 2 the 1st, storehouse ladders;
The 4th step: then carry out the 1st ladder in No. 1 storehouse and push to adopt 5 meters to No. 2 Cang Yankou position;
The 5th step: continue the 2nd, 3 ladders in No. 1 storehouse to push to adopt simultaneously, treat that the 2nd ladder pushes to adopt 5 meters, No. 1 storehouse upper end of distance or No. 2 storehouses and stop in No. 1 the storehouse in;
The 6th step: tear eye mouthful support open from No. 2 storehouses more again, upwards push to adopt 1.0-2.0 rice and arrange No. 2 the 2nd, storehouse ladders, then No. 2 two, storehouse ladders push to adopt forward 4.0-5.0 rice simultaneously;
The 7th step: continue the 2nd ladder in No. 1 storehouse to push to adopt 5 meters to No. 2 Cang Yankou position;
The 8th step: tear again eye mouthful support open from No. 2 storehouses again, upwards push to adopt 1.0-2.0 rice and arrange No. 2 the 3rd, storehouse ladders;
The 9th step: and then the 3rd ladder in No. 1 storehouse pushed to adopt to No. 2 Cang Yankou positions, so far No. 1 storehouse has all pushed to adopt;
The tenth step: 3 ladders in No. 2 storehouses are pushed to adopt simultaneously, treat in No. 2 storehouses that the 1st ladder pushes to adopt apart from 5 meters of No. 3 storehouse upper ends to stop;
The 11 step: repeated the storehouse that the way in No. 2 storehouse is left excessively, that is: eye mouthful support is torn in No. 3 storehouses open, upwards push to adopt 6.0 meters and arrange No. 3 the 1st, storehouse ladders, in No. 2 storehouses, the 1st ladder pushes to adopt 5 meters to No. 3 storehouse eye mouth, in No. 2 storehouses the 2nd, 3 ladders push to adopt simultaneously, treating in No. 2 storehouses that the 2nd ladder pushes to adopt apart from 5 meters of No. 2 storehouse upper ends stops, No. 3 eye mouthful support is torn in storehouse again open, upwards push to adopt 1.0-2.0 rice and arrange No. 3 the 2nd, storehouse ladders, No. 3 two, storehouse ladder pushes to adopt forward 4.0-5.0 rice simultaneously, in No. 2 storehouses, the 2nd ladder pushes to adopt 5 meters to No. 3 storehouse eye mouth, No. 3 eye mouthful support is torn in storehouse again open, upwards push to adopt 1.0-2.0 rice and arrange No. 3 the 3rd, storehouse ladders, in No. 2 storehouses, the 3rd ladder pushes to adopt to No. 3 storehouse eye mouths, in No. 3 storehouses, 3 ladders push to adopt simultaneously, treating in No. 3 storehouses that the 1st ladder pushes to adopt apart from 5 meters of No. 3 storehouse upper ends stops, push to adopt in No. 3 storehouses the 1st ladder to upper end, in No. 3 storehouses the 2nd, 3 ladders push to adopt simultaneously, treating that the 2nd ladder adopted to 5 meters of No. 3 storehouse upper ends stops, push to adopt in No. 3 storehouses the 2nd ladder to upper end, push to adopt in No. 3 storehouses the 3rd ladder to upper end.
Wherein, 3 of ladder numbers in each storehouse.
Wherein, ladder height is less than or equal to 1.2 meters.
Wherein, the length 4.0-5.0 rice between ladder.
Wherein, the work plane gradient is less than or equal to 25 degree.
Owing to having taked above technical scheme, the invention has the advantages that: tunnel is arranged simple, qualitative change strong adaptability over the ground, can realize multiple spot operation simultaneously, has improved single face output.
Accompanying drawing explanation
Fig. 1 is first ladder arrangement diagram;
Fig. 2 is second ladder arrangement diagram;
Fig. 3 is the 3rd ladder arrangement diagram;
Fig. 4 is that the first ladder pushes to adopt figure.
The specific embodiment
Below implement to be used for illustrating the present invention, but be not used for limiting the scope of the invention.
Referring to Fig. 1-Fig. 4, technological process of the present invention comprises:
One, ladder forms
A: scheme one
(1) ladder forms technique
The first step: No. 1 eye mouthful support is torn in storehouse open, upwards push to adopt 6.0 meters of layout No. 1 storehouses, the 1st ladder →, No. 1 storehouse and tear again an eye mouthful support open, upwards push to adopt 1.0-2.0 rice and arrange that two, No. 1 storehouse, the 2nd ladder →, No. 1 storehouse ladder pushes to adopt forward No. 1 storehouse, 4.0-5.0 rice → simultaneously and tears eye mouthful support open again, upwards push to adopt 1.0-2.0 rice and arrange No. 1 the 3rd, storehouse ladder;
(2) normally push to adopt
Second step: in No. 1 storehouse, 3 ladders normally push to adopt simultaneously, treats that No. 1 the 1st, storehouse ladder pushes to adopt 5 meters of No. 1 storehouse upper ends of distance and stops;
(3) pushing to adopt No. 1 storehouse upper end or more than 2 storehouse changeover portion
The 3rd step: first carry out No. 2 storehouses and tear eye mouthful support open, upwards push to adopt 6.0 meters and arrange No. 2 the 1st, storehouse ladders;
The 4th step: then carry out the 1st ladder in No. 1 storehouse and push to adopt 5 meters to No. 2 Cang Yankou position;
The 5th step: continue the 2nd, 3 ladders in No. 1 storehouse to push to adopt simultaneously, treat that the 2nd ladder pushes to adopt distance No. 1 storehouse upper end (or No. 2 storehouses) 5 meters and stop in No. 1 the storehouse in;
The 6th step: tear again again an eye mouthful support from No. 2 storehouses open, upwards push to adopt 1.0-2.0 rice and arrange No. 2 the 2nd, storehouse ladders → then No. 2 two, storehouse ladders push to adopt forward 4.0-5.0 rice simultaneously;
The 7th step: continue the 2nd ladder in No. 1 storehouse to push to adopt 5 meters to No. 2 Cang Yankou position;
The 8th step: tear again eye mouthful support open from No. 2 storehouses again, upwards push to adopt 1.0-2.0 rice and arrange No. 2 the 3rd, storehouse ladders;
The 9th step: and then the 3rd ladder in No. 1 storehouse pushed to adopt to No. 2 Cang Yankou positions so far to No. 1 storehouse all to have pushed to adopt;
The tenth step: 3 ladders in No. 2 storehouses are pushed to adopt simultaneously, treat in No. 2 storehouses that the 1st ladder pushes to adopt apart from 5 meters of No. 3 storehouse upper ends to stop;
The 11 step: repeated the storehouse that the way in No. 2 storehouse is left excessively, that is: eye mouthful support is torn in No. 3 storehouses open, upwards push to adopt 6.0 meters and arrange in No. 2 storehouses, the 1st ladder →, No. 3 storehouses that the 1st ladder pushes to adopt in No. 2 storehouse, eye mouth →, 5 meters to No. 3 storehouses the 2nd, 3 ladders push to adopt simultaneously, treat in No. 2 storehouses the 2nd ladder push to adopt apart from 5 meters of No. 2 storehouse upper ends stop → No. 3 an eye mouthful support is torn in storehouse again open, upwards push to adopt 1.0-2.0 rice and arrange that two ladders in No. 3 storehouse, the 2nd ladder →, No. 3 storehouses push to adopt forward the 2nd ladder simultaneously in the No. 2 storehouse, 4.0-5.0 rice → in and push to adopt No. 3 storehouse, eye mouth →, 5 meters to No. 3 storehouses and tear an eye mouth support open again, upwards pushing to adopt 1.0-2.0 rice arranges in No. 2 storehouse, the 3rd ladder →, No. 3 storehouses that the 3rd ladder pushes to adopt to 3 ladders in No. 3 storehouse, eye mouth →, No. 3 storehouses and pushes to adopt simultaneously, treating in No. 3 storehouses that the 1st ladder pushes to adopt apart from 5 meters of No. 3 storehouse upper ends stops → pushes to adopt in No. 3 storehouses the 1st ladder in No. 3 storehouse, upper end → the 2nd, 3 ladders push to adopt simultaneously, treat the 2nd ladder adopt to 5 meters of No. 3 storehouse upper ends stop → push to adopt in No. 3 storehouses the 2nd ladder to upper end → push to adopt in No. 3 storehouses the 3rd ladder to upper end.
B: scheme two
(1) ladder forms technique
The first step: No. 1 eye mouthful support is torn in storehouse open, upwards push to adopt 6.0 meters of layout No. 1 storehouses, the 1st ladder →, No. 1 storehouse and tear again an eye mouthful support open, upwards push to adopt 1.0-2.0 rice and arrange that two, No. 1 storehouse, the 2nd ladder →, No. 1 storehouse ladder pushes to adopt forward No. 1 storehouse, 4.0-5.0 rice → simultaneously and tears eye mouthful support open again, upwards push to adopt 1.0-2.0 rice and arrange No. 1 the 3rd, storehouse ladder;
(2) normally push to adopt
Second step: in No. 1 storehouse, 3 ladders push to adopt simultaneously, treats in No. 1 storehouse that the 1st ladder pushes to adopt to No. 2 Cang Yankou positions to stop;
(3) pushing to adopt No. 1 storehouse upper end or more than 2 storehouse changeover portion
The 3rd step: tear eye mouthful support open in No. 2 storehouses, upwards push to adopt 6.0 meters and arrange No. 2 the 1st, storehouse ladders;
The 4th step: then continue the 2nd, 3 ladders in No. 1 storehouse to push to adopt simultaneously, treat in No. 1 storehouse that the 2nd ladder pushes to adopt to No. 2 Cang Yankou positions to stop;
The 5th step: tear again again an eye mouthful support from No. 2 storehouses open, upwards push to adopt 1.0-2.0 rice and arrange No. 2 the 2nd, storehouse ladders → then No. 2 two, storehouse ladders are pushed to adopt forward to 4.0-5.0 rice simultaneously;
The 6th step: again the 3rd ladder in No. 1 storehouse pushed to adopt to No. 2 storehouse eye mouths;
The 7th step: tear again again an eye mouthful support from No. 2 storehouses open, upwards push to adopt 1.0-2.0 rice and arrange that in No. 2 storehouses of No. 2 the 3rd, storehouse ladders → then, 3 ladders push to adopt simultaneously, treat in No. 2 storehouses that the 1st ladder pushes to adopt to No. 3 Cang Yankou positions to stop;
The 8th step: repeated the storehouse that the way in No. 2 storehouse is left excessively, that is: eye mouthful support is torn in No. 3 storehouses open, upwards push to adopt 6.0 meters and arrange in No. 2 storehouses, the 1st ladder →, No. 3 storehouses the 2nd, 3 ladders push to adopt simultaneously, treat in No. 2 storehouses that the 2nd ladder pushes to adopt and to No. 3 storehouse, eye mouth →, No. 3 storehouses, tear again an eye mouthful support open, upwards push to adopt 1.0-2.0 rice and arrange that two ladders in No. 3 storehouse, the 2nd ladder →, No. 3 storehouses push to adopt forward the 3rd ladder simultaneously in the No. 2 storehouse, 4.0-5.0 rice → in and push to adopt and to No. 3 storehouse, eye mouth →, No. 3 storehouses, tear an eye mouth support open again, upwards push to adopt 1.0-2.0 rice and arrange that in No. 3 storehouse, the 3rd ladder →, No. 3 storehouses, the 3rd ladder pushes to adopt simultaneously, treating in No. 3 storehouses that the 1st ladder pushes to adopt to 5 meters of No. 3 storehouse upper ends stops → pushes to adopt in No. 3 storehouses the 1st ladder in No. 3 storehouse, upper end → the 2nd, 3 ladders push to adopt simultaneously, treat the 2nd ladder adopt to 5 meters of No. 3 storehouse upper ends stop → push to adopt in No. 3 storehouses the 2nd ladder to upper end → push to adopt in No. 3 storehouses the 3rd ladder to upper end.
In implementation process, should be noted that item:
While 1, tearing eye mouth open, to tear in time tailstock open.
While 2, pushing to adopt, in each storehouse, each ladder must be pushed ahead simultaneously, mustn't push to adopt by single ladder.
3, in each storehouse, each ladder pushes to adopt progress and wants consistent, forbids two ladders to push to adopt together.
When 4, upper and lower storehouse pushes to adopt simultaneously, upper storehouse descends the mistake in storehouse apart from the height that can not exceed a ladder in advance.
In time continuous frame when 5, upper end pushes to adopt.According to the former soft coal-mining method of covering, push to adopt.
Two, perforating, blow out
1, borehole arrangement, quantity, angle, will be according to coal seam thickness, hardness clear and definite regulation in operating regulation.
2, borehole depth must not exceed 2 meters.
3,, during hole placing, keep as far as possible in each ladder, having an effective single-column of supporting after banger.
4,, according to seam hardness, in operating regulation blasting chart, clearly stipulate charging means, dose and firing order.
5, in each storehouse, must a powder charge of all ladders detonate simultaneously.
Three, take off coal and supporting
While 1, taking off coal after banger, must, from the most next ladder in each storehouse, upwards take off successively coal, forbid two or more ladders to take off coal simultaneously.
2, the regulation that strict implement " is taken off and made a call to ".Take off enough posts apart from making a call to a column, column spacing is not more than 1.5 meters, and will be according to top board exposed area and roof condition, complement band cap stull in time.
3, work plane side drawing coal technology and technical safety measures must clearly stipulate in operating regulation.Within the scope of 5 meters of each rise race eye mouth and upper ends, frame back pad layer thickness is less than near 3 meters, side coal discharge outlet the point post of 5 meters of scope inner supports and supports defective and support bottom, side coal discharge outlet place and do not accomplish fluently before a post, all forbids to be sidelong coal operation after frame.
4, after wanting clear and definite work plane to push to adopt in operating regulation, get the spacing of post and stull ready, specify roof cracking or support upper limbs and leave the technical safety measures that should take after top board.
Four, tear eye mouthful support open
1, eye mouthful place must transfer in time support and accomplish fluently a post (coupled columns) and stull effectively control well eye mouthful place a flexible shield support, reduce eye mouthful locate a top board exposed area.
2, often follow from eye mouth and push to adopt and start new circulation time, the only accurate mode of tearing rare back-propping plate (each at most only accurate backboard of tearing 1 rare open) open that adopts, forbid directly eye mouth support to be removed and pushed to adopt, guarantee that ladder height is not more than 1.2 meters, treat that ladder pushes to adopt 6 meters of rear dismountable eye mouthful place's supports.
3, when tunnel is widened the view mouthful (layout ladder), the mode that must clearly stipulate in operating regulation to widen the view mouthful, supporting requirement and the technical safety measures at eye mouthful place.
4, tear the front supporting that must overhaul eye mouthful Xia20 meter Li lane of frame open, scarce vertical brace, backboard, timely replacement, and top board stone alive is processed clean.
5, tearing frame open must from top to bottom be undertaken by frame, tears frame mode open and must clearly stipulate in operating regulation with the safety specifications of tearing frame open.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Everyly belong to apparent variation or the still row in protection scope of the present invention of variation that technical scheme of the present invention extends out.
Claims (5)
1. a half-edge coal seam flexible type shield staged coal-mining method, is characterized in that, comprises the following steps:
(1) ladder forms technique
The first step: No. 1 eye mouthful support is torn in storehouse open; upwards push to adopt 6.0 meters of layout No. 1 storehouses, the 1st ladder →, No. 1 storehouse and tear again an eye mouthful support open; upwards push to adopt 1.0-2.0 rice and arrange that two, No. 1 storehouse, the 2nd ladder →, No. 1 storehouse ladder pushes to adopt forward No. 1 storehouse, 4.0-5.0 rice → simultaneously and tears eye mouthful support open again, upwards push to adopt 1.0-2.0 rice and arrange No. 1 the 3rd, storehouse ladder;
(2) normally push to adopt
Second step: in No. 1 storehouse, 3 ladders normally push to adopt simultaneously, treats that No. 1 the 1st, storehouse ladder pushes to adopt 5 meters of No. 1 storehouse upper ends of distance and stops;
(3) pushing to adopt No. 1 storehouse upper end or more than 2 storehouse changeover portion
The 3rd step: first carry out No. 2 storehouses and tear eye mouthful support open, upwards push to adopt 6.0 meters and arrange No. 2 the 1st, storehouse ladders;
The 4th step: then carry out the 1st ladder in No. 1 storehouse and push to adopt 5 meters to No. 2 Cang Yankou position;
The 5th step: continue the 2nd, 3 ladders in No. 1 storehouse to push to adopt simultaneously, treat that the 2nd ladder pushes to adopt 5 meters, No. 1 storehouse upper end of distance or No. 2 storehouses and stop in No. 1 the storehouse in;
The 6th step: tear eye mouthful support open from No. 2 storehouses more again, upwards push to adopt 1.0-2.0 rice and arrange No. 2 the 2nd, storehouse ladders, then No. 2 two, storehouse ladders push to adopt forward 4.0-5.0 rice simultaneously;
The 7th step: continue the 2nd ladder in No. 1 storehouse to push to adopt 5 meters to No. 2 Cang Yankou position;
The 8th step: tear again eye mouthful support open from No. 2 storehouses again, upwards push to adopt 1.0-2.0 rice and arrange No. 2 the 3rd, storehouse ladders;
The 9th step: and then the 3rd ladder in No. 1 storehouse pushed to adopt to No. 2 Cang Yankou positions so far to No. 1 storehouse all to have pushed to adopt;
The tenth step: 3 ladders in No. 2 storehouses are pushed to adopt simultaneously, treat in No. 2 storehouses that the 1st ladder pushes to adopt apart from 5 meters of No. 3 storehouse upper ends to stop;
The 11 step: repeated the storehouse that the way in No. 2 storehouse is left excessively, that is: eye mouthful support is torn in No. 3 storehouses open, upwards push to adopt 6.0 meters and arrange No. 3 the 1st, storehouse ladders, in No. 2 storehouses, the 1st ladder pushes to adopt 5 meters to No. 3 storehouse eye mouth, in No. 2 storehouses the 2nd, 3 ladders push to adopt simultaneously, treating in No. 2 storehouses that the 2nd ladder pushes to adopt apart from 5 meters of No. 2 storehouse upper ends stops, No. 3 eye mouthful support is torn in storehouse again open, upwards push to adopt 1.0-2.0 rice and arrange No. 3 the 2nd, storehouse ladders, No. 3 two, storehouse ladder pushes to adopt forward 4.0-5.0 rice simultaneously, in No. 2 storehouses, the 2nd ladder pushes to adopt 5 meters to No. 3 storehouse eye mouth, No. 3 eye mouthful support is torn in storehouse again open, upwards push to adopt 1.0-2.0 rice and arrange No. 3 the 3rd, storehouse ladders, in No. 2 storehouses, the 3rd ladder pushes to adopt to No. 3 storehouse eye mouths, in No. 3 storehouses, 3 ladders push to adopt simultaneously, treating in No. 3 storehouses that the 1st ladder pushes to adopt apart from 5 meters of No. 3 storehouse upper ends stops, push to adopt in No. 3 storehouses the 1st ladder to upper end, in No. 3 storehouses the 2nd, 3 ladders push to adopt simultaneously, treating that the 2nd ladder adopted to 5 meters of No. 3 storehouse upper ends stops, push to adopt in No. 3 storehouses the 2nd ladder to upper end, push to adopt in No. 3 storehouses the 3rd ladder to upper end.
2. a kind of half-edge coal seam flexible type shield staged coal-mining method as claimed in claim 1, is characterized in that 3 of ladder numbers in each storehouse.
3. a kind of half-edge coal seam flexible type shield staged coal-mining method as claimed in claim 1, is characterized in that, ladder height is less than or equal to 1.2 meters.
4. a kind of half-edge coal seam flexible type shield staged coal-mining method as claimed in claim 1, is characterized in that the length 4.0-5.0 rice between ladder.
5. a kind of half-edge coal seam flexible type shield staged coal-mining method as claimed in claim 1, is characterized in that, the work plane gradient is less than or equal to 25 degree.
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| CN109779630A (en) * | 2019-02-20 | 2019-05-21 | 北京昊华能源股份有限公司 | A kind of half-edge coal seam coal-mining method |
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| Publication number | Publication date |
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| CN103758520B (en) | 2016-10-05 |
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