CN1032707C - Z-shape coal mining method with road driving along next goaf to top (on-dip) - Google Patents
Z-shape coal mining method with road driving along next goaf to top (on-dip) Download PDFInfo
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- CN1032707C CN1032707C CN 94107645 CN94107645A CN1032707C CN 1032707 C CN1032707 C CN 1032707C CN 94107645 CN94107645 CN 94107645 CN 94107645 A CN94107645 A CN 94107645A CN 1032707 C CN1032707 C CN 1032707C
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Abstract
The present invention relates to a boundary raise (winze) Z-shaped coal mining method with a road along next goaf, which is characterized in that the raise (winze) is carried out along the boundary; working surface production systems are arranged in a Z shape; roads are formed along next goaf, namely that the boundary raise (winze) used by each mining area only digs one subsidiary road, and the rest subsidiary roads are made along the working surface, and the roads formed along next goaf serves both the local working surface and the adjacent working surface. The boundary raise (winze) Z-shaped coal mining method has the advantages that no coal pillars remain between the upper working surface and the lower working surface, and the present invention reduces the loss rate of coal resources and the drivage quantity and the maintenance quantity of the project of preparation roads so as to fundamentally relieve the passive condition of insufficient replacement of coal mine production mining.
Description
The present invention relates to (descend) on a kind of border the mountain to become lane Z type coal-mining method along sky.
At present, the coal-mining method that generally use in the domestic mining area of respectively mining is the retrusive coal-mining method, this coal-mining method is to be arranged in exploiting field central authorities with (descending) on the exploiting field, excavate two secondary lanes of work plane during production earlier, open-off cut then, arrange and produce, adopt this coal-mining method, therefore generally all leave coal column up and down between the work plane, this coal-mining method development heading excavation work amount, maintenance are big, move often in the working face, the digging anxiety, it is passive to produce, the cost of production height, and the coal resources loss is bigger.In order to address the above problem, our design studies has been used and (has been descended) mountain to become lane Z type coal-mining method along sky on the border.By ISTIC Research ﹠ Traning Center's international online retrieval and domestic online information retrieval and manual information retrieval, domestic and international 22 databases and retrieval book have been searched, from more than 3,000 ten thousand pieces of domestic and foreign literatures and patent of its storage, 4 pieces of Related domestic documents have been found: (1), " Z " shape coal mining fully-mechanized mining working gob side entry retaining--northeast colliery engineering 89 (5) 11-14; (2), " Z " type coal mining fully-mechanized mining working gob side entry retaining--two coal science and technology 89 (2) 27-29; (3), Z TYPE ADVANCED MINING IN A FULLY MECHANIZED COAL FACE--COAL SCIENCE AND TECHNOLOGY (PEKING) N7 1986 P2-6; Technology when (4), the upper and lower crossheading of stope is along sky and ore deposit thereof are pressed and are manifested difference--the Lushui River coal technology 88 (2) 1-7.These documents have been discussed respectively and have been belonged to the no coal pillar mining benefit that retrusive is striden the Z type coal-mining method of the scope of adopting, Z type coal mining gob side entry retaining etc., these methods are compared with the domestic retrusive method that generally adopts certain economy of resources and economic benefit, but still exist supporting difficulty, roadway maintenance and the still bigger shortcoming of excavation work amount, thereby be difficult to realize, be difficult to reverse the passive situation of coal production, obvious difference arranged with mining methods of the present invention.Find one piece of external pertinent literature in addition: MINE 0F THEFUTURE EZAMPLES OF MININE ENGINEERING FOR GREAT DEPTHS INOPERATIONAL COLLIERS (DE 89770120) this article is shown by mining area, West Germany Rule, mainly discussed and adopted greatly how coal-mining method will develop in the future under the dark condition, wherein mentioning work plane Z type layout and stope drift active workings and work plane is arranged in parallel, but the reform that does not relate to upper and lower mountain, main tunnel, exploiting field is arranged, have any different with the present invention, and existence and domestic same problem.
(descending) mountain becomes lane Z type coal-mining method along sky on a kind of border that purpose of the present invention proposes at existing problem in the above-mentioned prior art just, use and talk coal-mining method, do not stay coal column between the upper and lower work plane, significantly reduced the loss late of coal resources, reduce the engineering driving amount and the maintenance of development heading, improved the rate of recovery of coal resources.
The objective of the invention is to realize by the following method:
(descend) mountain to become lane Z type coal-mining method to comprise that work plane is Z-shaped layout, also possesses following feature on the border of the present invention along sky:
(descend) the mountain feature on a, the border, will (descend) mountain to be arranged in the section boundary on the exploiting field;
B, empty one-tenth lane, edge feature, promptly a secondary lane is only dug in each exploiting field, and all make along work plane in remaining secondary lane, is the service of this work plane along empty tunnel of making, and also is adjacent work plane service; In the exploitation process, scrap along with the advance of the face in existing secondary lane, and then make along sky in another secondary lane.
In the present invention, can both sides, a section boundary respectively offer arrange one on (descending) mountain; Also can section boundary one side offer arrange one on (descend) mountain, offer layout (descending) mountain on two or more at the section boundary opposite side; Also can respectively offer and arrange (descending) mountain on two or more in both sides, a section boundary.
The present invention has compared following good effect: A with the general drawing back of adopting in present mining area, working section recovery can improve 10%-15%, the output and the output value in exploiting field also improve 10%-15% simultaneously, thereby can increase substantially benefit, prolong exploiting field and mine service-life.Only dig stope drift active workings in B, the exploiting field, all the other all become the lane along empty, thereby exploiting field stope drift active workings drivage ratio can reduce more than 80%, thereby reduce tunnelling engineering amount greatly, reduce production costs.C, cut a number and can reduce by 50%, so its engineering quantity and maintenance and the corresponding reduction by 50% of face moving number of times, and the removal of home distance is near, and expense is low, and the time is short.D, when adopting on the border the single layout in (descend) mountain, last (descending) mountain number can reduce more than 40%.E, owing to greatly reduce the excavation work amount, will thoroughly eliminate the digging tight relationship, reverse the passive situation of coal production.The present invention also with document on the disclosed Z-shaped coal-mining method of gob side entry retaining following tangible difference and advantage are arranged: (1), the Z-shaped coal-mining method of gob side entry retaining are not systematically discussed main tunnel, exploiting field--the layout transformation on upper and lower mountain, exploiting field promptly is not provided with upper and lower mountain, border.Therefore, the Z-shaped coal-mining method of gob side entry retaining is not economized upper and lower mountain, exploiting field engineering quantity, and this coal-mining method can be saved upper and lower mountain, the exploiting field engineering quantity more than 40%; In addition, the Z-shaped coal-mining method of gob side entry retaining is because upper and lower mountain, not ad hoc border, have only when having corresponding continuous coal amount not exploit between two exploiting fields and could use, and this situation seldom, because after the exploiting field developing prepares out, to exploit soon, be difficult to occur have between two exploiting fields continuous coal amount not have the situation of exploitation, so the chance that this method is used seldom, can only use accidentally, and the design of this coal-mining method has upper and lower mountain, special border, so whole exploiting field can be used.(2), gob side entry retaining wants elder generation that two secondary lanes of work plane are all excavated, the open-off cut face of assigning a work then, a secondary lane is with adopting with scrapping during working face extraction, another then stays along sky, be adjacent work plane service, therefore only excavate a secondary lane with elder generation of the present invention, another secondary lane becomes the lane method different fully along what sky formed along sky, if gob side entry retaining is all used in whole exploiting field, the stope drift active workings drivage ratio only reduces about 30%, and whole exploiting field becomes the lane as if using along sky, and then an exploiting field only need be dug one; Adopt the tunnel, the stope drift active workings drivage ratio can reduce more than 80%.(3), gob side entry retaining is owing to be to dig the tunnel earlier, stay again after the back production, so stope drift active workings pressurized, deformation time are long, safeguard quite difficulty, maintenance cost is high, therefore limited its scope of application, and along empty one-tenth lane by comparison, roadway deformation, pressurized time weak point, before the tunnel forms, digested a large amount of distortion, its supporting is more much easier than gob side entry retaining, and support cost is much lower.Whether and whether supporting is difficult, can realize smoothly, and whether the supporting expense is expensive, is the key that can a kind of coal-mining method realize, therefore, the present invention has more wide application prospect and better economic benefit than gob side entry retaining.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the border layout schematic diagram of going up a hill.
Fig. 2 goes down the hill to arrange schematic diagram for the border.
Fig. 3 a, 3b, 3c go up a hill along empty one-tenth lane Z type coal-mining method schematic diagram for the upstriker border.
Fig. 4 a, 4b, 4c go up a hill along empty one-tenth lane Z type coal-mining method schematic diagram for the downstriker border.
Fig. 5 a, 5b, 5c are gone down the hill along empty one-tenth lane Z type coal-mining method schematic diagram for the upstriker border.
Fig. 6 a, 6b, 6c are gone down the hill along empty one-tenth lane Z type coal-mining method schematic diagram for the downstriker border.
Number in the figure, sign are described as follows:
1 is main haulage roadway; 2 is the big lane of return air; 3 go up a hill for track boundary; 4 go up a hill for border transportation; 3 ' go down the hill for track boundary; 4 ' for transporting in the border; 5 is secondary lane under first section; 6 is open-off cut; 7 for becoming lane (printing secondary lane on first section, secondary lane under second section) along sky; 5 is secondary lane on first section; 7 ' be to become lane (i.e. secondary lane under first section, secondary lane on second section) along empty.---pillar line;
Goaf (not steady and sure fully);
Goaf (steady and sure fully).
The present invention is explained in detail below in conjunction with (accompanying drawing) embodiment:
Embodiment 1:
(1), go up a hill in the border.District rise is arranged in the section boundary, as shown in Figure 1.The condition different according to mine, border are gone up a hill and can be adopted following several compound mode:
A〉for the exploiting field of new developing, about the section boundary, respectively arrange one and go up a hill that except that first exploiting field, all the other exploiting fields are only spread out one and gone up a hill like this, go up a hill in shared one of adjacent exploiting field, and this is the citation form that this coal-mining method is gone up a hill and arranged.
B〉single two (many) borders go up a hill.In conjunction with the existing exploiting field condition of production, exploiting field one lateral boundaries is arranged that one is gone up a hill, the opposite side border then has two or many to go up a hill, and adjacent exploiting field shared one or two (many) go up a hill.
C〉two or many go up a hill, promptly as required about the section boundary each arrange two or many go up a hill, adjacent exploiting field shared two or many go up a hill.
(2), the geological conditions different according to mine, the mining sequence of exploiting field inner working face can adopt two kinds of upstriker or downstrikers.
A〉upstriker, shown in Fig. 3 a, 3b, 3c, promptly begin to adopt from the most next work plane.Go up a hill arrange after, pick earlier is the most following secondary lane of next work plane, with the border connection of going up a hill, (the secondary lane of this time can once excavate, and is communicated with the border and goes up a hill, and also sectional excavates, make this pair lane 30～50 meters of first advances all the time, this tunnel is with connection roadway and main haulage roadway UNICOM.) dig one section simultaneously and go up secondary lane, about about 40 meters long, open-off cut then, upper and lower secondary lane is connected the face of assigning a work, shown in Fig. 3 a, work plane advances to the transportation border direction of going up a hill then, form Z-shapedly, shown in Fig. 3 b, gradually scrap thoroughly with the advance of the face in following secondary lane, going up secondary lane forms along empty gradually with the advance of the face, this tunnel also will be for adjacent work plane service, shown in Fig. 3 c except that being the service of this work plane, the production system of adjacent work plane and first work plane similar, this promptly is to go up a hill and become the Z-shaped coal-mining method in lane along empty in the upstriker border.
B〉downstriker, shown in Fig. 4 a, 4b, 4c, promptly begin to adopt from going up most a work plane.Go up a hill arrange after, the last secondary lane that a work plane is gone up most in pick earlier is with the border connection of going up a hill, (secondary lane can once excavate on this, is communicated with the border and goes up a hill, and also sectional excavates, make this pair lane 30～50 meters of first advances all the time, this tunnel is with connection roadway and the big lane of return air UNICOM.) dig one section down secondary lane simultaneously, about about 40 meters long, open-off cut then, upper and lower secondary lane is connected the face of assigning a work, shown in Fig. 4 a, work plane advances to the rail boundary direction of going up a hill then, form Z-shapedly, shown in Fig. 4 b, go up secondary lane and scrap gradually with the advance of the face, secondary lane forms along empty gradually with the advance of the face down, this tunnel also will be for adjacent work plane service, shown in Fig. 4 c except that being the service of this work plane, the production system of adjacent work plane and first work plane similar, this promptly is to go up a hill and become the Z-shaped coal-mining method in lane along empty in the downstriker border.
Embodiment 2:
(1), go down the hill in the border.The section boundary is gone down the hill to be arranged in the Jiang Guo district, as shown in Figure 2.The condition different according to mine, border go down the hill to adopt following several compound mode:
A〉for the exploiting field of new developing, about the section boundary, respectively arrange one and go down the hill that like this except that first exploiting field, all the other exploiting fields are only spread out one and gone down the hill, go down the hill in shared one of adjacent exploiting field, and this is the citation form that this coal-mining method goes down the hill to arrange.
B〉single two (many) borders go down the hill.In conjunction with the existing exploiting field condition of production, exploiting field one lateral boundaries is arranged that one goes down the hill, the opposite side border then has two or many to go down the hill, and adjacent exploiting field shared one or two (many) go down the hill.
C〉two or many go down the hill, promptly as required about the section boundary each arrange two or many go down the hill, adjacent exploiting field shared two or many go down the hill.
(2), the geological conditions different according to mine, the mining sequence of exploiting field inner working face can adopt two kinds of upstriker or downstrikers.
A〉upstriker, shown in Fig. 5 a, 5b, 5c, promptly begin to adopt from the most next work plane.After going down the hill to arrange, pick earlier is the most following secondary lane of next work plane, the border is gone down the hill to be communicated with, dig one section simultaneously and go up secondary lane, about about 40 meters long, open-off cut then, to go up, down secondary lane connects the face of assigning a work, shown in Fig. 5 a, work plane advances to the transportation border direction of going down the hill then, forms Z-shaped, shown in Fig. 5 b, down scrap gradually with the advance of the face in secondary lane, goes up secondary lane and form along empty gradually with the advance of the face, and this tunnel is except that being the service of this work plane, also to be adjacent work plane service, shown in Fig. 5 c, the production system of adjacent work plane and first work plane similar, this promptly is to go down the hill and become the Z-shaped coal-mining method in lane along empty in the upstriker border.
B〉downstriker, shown in Fig. 6 a, 6b, 6c, promptly begin to adopt from going up most a work plane.After going down the hill to arrange, the last secondary lane that a work plane is gone up most in pick earlier, the border is gone down the hill to be communicated with, dig one section down secondary lane simultaneously, about about 40 meters long, open-off cut then, to go up, down secondary lane connects the face of assigning a work, shown in Fig. 6 a, work plane advances to the rail boundary direction of going down the hill then, forms Z-shaped, shown in Fig. 6 b, go up secondary lane and scrap gradually with the advance of the face, following secondary lane forms along empty gradually with the advance of the face, and this tunnel is except that being the service of this work plane, also to be adjacent work plane service, shown in Fig. 6 c, the production system of adjacent work plane and first work plane similar, this promptly is to go down the hill and become the Z-shaped coal-mining method in lane along empty in the downstriker border.
Claims (4)
1, (descend) mountain to become lane Z type coal-mining method along sky on a kind of border, it comprises that work plane is Z-shaped layout, the invention is characterized in:
(descend) the mountain feature on a, the border, will (descend) mountain to be arranged in the section boundary on the exploiting field;
B, empty one-tenth lane, edge feature, be that a secondary lane is only dug in each exploiting field, all make along work plane in remaining secondary lane, be the service of this work plane along empty tunnel of making, it also is adjacent work plane service, in the exploitation process, scrap along with the advance of the face in existing secondary lane, and then make along sky in another secondary lane.
2, (descend) mountain to become lane Z type coal-mining method on the border according to claim 1, it is characterized in that along sky: both sides, a section boundary respectively offer arrange one on (descending) mountain.
3, (descend) mountain to become lane Z type coal-mining method on the border according to claim 2, it is characterized in that along sky: section boundary one side offer arrange one on (descend) mountain, offer layout (descending) mountain on two or more at the section boundary opposite side.
4, (descend) mountain to become lane Z type coal-mining method on the border according to claim 1, it is characterized in that: respectively offer a fruit district boundaries on either side and arrange (descending) mountain on two or more along sky.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107645 CN1032707C (en) | 1994-07-04 | 1994-07-04 | Z-shape coal mining method with road driving along next goaf to top (on-dip) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107645 CN1032707C (en) | 1994-07-04 | 1994-07-04 | Z-shape coal mining method with road driving along next goaf to top (on-dip) |
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| Publication Number | Publication Date |
|---|---|
| CN1102455A CN1102455A (en) | 1995-05-10 |
| CN1032707C true CN1032707C (en) | 1996-09-04 |
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| CN 94107645 Expired - Fee Related CN1032707C (en) | 1994-07-04 | 1994-07-04 | Z-shape coal mining method with road driving along next goaf to top (on-dip) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065001A (en) * | 2015-07-31 | 2015-11-18 | 中国矿业大学(北京) | Gob-side entrydriving mining method of ultralong-propulsion-distance working face |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749018B (en) * | 2010-01-31 | 2012-01-25 | 山西晋城无烟煤矿业集团有限责任公司 | Coal mining method with direct coal pillar recovery |
| CN110644993B (en) * | 2019-10-12 | 2021-06-04 | 陕西惠天煤矿工程技术有限公司 | Z-shaped strip working face mining method |
| CN111255455B (en) * | 2020-01-21 | 2021-07-02 | 山东科技大学 | Non-divided mining area, non-entry driving and non-pillar mining and construction method for coal mine field |
| CN114961728B (en) * | 2022-06-20 | 2022-12-13 | 太原理工大学 | Method for mining area without coal pillars for comprehensively preventing and controlling rock burst and gas |
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1994
- 1994-07-04 CN CN 94107645 patent/CN1032707C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065001A (en) * | 2015-07-31 | 2015-11-18 | 中国矿业大学(北京) | Gob-side entrydriving mining method of ultralong-propulsion-distance working face |
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| Publication number | Publication date |
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| CN1102455A (en) | 1995-05-10 |
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