CN101368482B - Novel technique of slight-pitch ore body overall mining method - Google Patents
Novel technique of slight-pitch ore body overall mining method Download PDFInfo
- Publication number
- CN101368482B CN101368482B CN2008102304398A CN200810230439A CN101368482B CN 101368482 B CN101368482 B CN 101368482B CN 2008102304398 A CN2008102304398 A CN 2008102304398A CN 200810230439 A CN200810230439 A CN 200810230439A CN 101368482 B CN101368482 B CN 101368482B
- Authority
- CN
- China
- Prior art keywords
- cutting
- ore
- hill
- entry
- meters
- 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 - Fee Related
Links
- 238000005065 mining Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005520 cutting process Methods 0.000 claims abstract description 76
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 238000005516 engineering process Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 11
- 238000010790 dilution Methods 0.000 abstract description 7
- 239000012895 dilution Substances 0.000 abstract description 7
- 239000000284 extract Substances 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 10
- 239000011435 rock Substances 0.000 description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000011440 grout Substances 0.000 description 4
- 210000000481 breast Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to gently inclined orebody mining field, in particular discloses a new gently inclined orebody overall mining process, including the following steps: digging a pedestrian raise entry and an cutting raise entry which are communicated with the upper middle section in the orebody disclosed in a drift at the lower middle section; constructing an undercutting drift at the mouth of the cutting raise entry; digging ore passes at a bottom pillar; constructing two layers of cutting drifts at the cutting raise entry; starting the stopping process after mining and cutting processes are finished; increasing the raise entry gradient Alpha between the mouth of the cutting raise entry and the two layers of cutting drifts to Beta 40-90 degrees by bottom-chopping engineering. Compared with prior art, the new gently inclined orebody overall mining method increases the cutting drifts and extracts almost all the ores, thus improving stopping rate. With a plurality of working faces operate at the same time, the new mining method increases ore-drawing capacity, reduces reserved natural ore pillars and reduces ore loss ratio and ore dilution ratio. Through bottom-chopping engineering, the new mining method increases the raise entry gradient between the mouth of the cutting raiser entry and the two layers of cutting drifts, thus greatly increasing ore transportation efficiency and increasing ore-drawing capacity.
Description
Technical field
The invention belongs to the exploitation field of gently inclined orebody, particularly a kind of new technology of flat-grade mine body overall mining method.
Background technology
At present, for gently inclined orebody, generally adopt breast stoping.The characteristics of breast stoping are: nugget needn't rule be divided mineral building and ore pillar, and stope across pitch or edge tilt or reverse caster is pushed forward comprehensively, the back production of whole layer.Fig. 1 is longitudinal projection's schematic diagram of typical flat-grade mine body overall mining method prior art, Fig. 2 is the A-A sectional view of Fig. 1, following position, the both sides driving pedestrian of stage casing 1 certain section ore body 6 go up a hill 2 with cutting go up a hill 3 and last stage casing 7 connect, form return air and pedestrains safety system, in the cutting 3 oral areas constructions tunnel 4 that undercuts of going up a hill, dig an ore scraper-trough conveyer 8 at a certain distance at foundation 9, after adopting cut and do finishing, the beginning back production.In exploitation process, barren rocks folded in the ore body 6 or low-grade ore stayed do not adopt, as shape, size and all irregular natural ore pillar 5 of spacing, in order to the roof rock in support goaf, these natural ore pillars 5 are generally as permanent loss, so loss late and the rate of dilution are all bigger.Secondly, advance exploitation to tiltedly long more than 20 meters the time with breasting method at present, mainly utilize manpower, time-consumingly take a lot of work again, had a strong impact on the ore removal ability from the downward scraping of stope work plane.
Summary of the invention
For overcoming the weak point of flat-grade mine body overall mining method recovery process in the above-mentioned prior art, purpose of the present invention is exactly the new technology that is to provide a kind of low loss late, hangs down the flat-grade mine body overall mining method of the rate of dilution, the high rate of extraction, high ore removal ability.
For achieving the above object, the technical scheme that the present invention takes is as follows: the new technology of flat-grade mine body overall mining method, the driving pedestrian goes up a hill and goes up a hill and the perforation of last stage casing with cutting in the ore body of midcourse phase gallery exposure down, in the cutting oral area construction tunnel that undercuts of going up a hill, at foundation digging ore scraper-trough conveyer, in order further to improve the rate of extraction, improve the ore removal ability, in two layers of cutting of the cutting place of going up a hill construction tunnels, after adopting cut and doing to finish, the beginning back production.
The new technology of described flat-grade mine body overall mining method is in 1/3～1/2 cutting, two layers of cutting of oblique strong point construction tunnels of going up a hill.
The new technology of described flat-grade mine body overall mining method, in cutting tiltedly long 3～5 meters construction tunnel that undercuts of going up a hill, at foundation every 7～10 meters digging one ore scraper-trough conveyers.
Cutting is gone up a hill because the inclination angle is slow, the ore deposit can not be emitted as drawing chute, in order to increase the cutting uphill slope, further improve mining efficiency, the uphill slope α in oral area to two layer cutting tunnel of cutting can also being gone up a hill increases and is β by cutting basic skill or training's journey: 40～90 °, set up funnel at the cutting oral area of going up a hill, top cutting ore can be emitted thus.
The new technology of described flat-grade mine body overall mining method, during back production, be the scope of freedom at first with two layers of cutting tunnel, push forward back production from bottom to top comprehensively, when working to the rise is advanced into the oblique strong point in 1/5～1/2 two layers cutting supreme stage casing, tunnel, push forward work plane back production simultaneously up and down more from bottom to top comprehensively in the tunnel that undercuts.
The relative prior art of the present invention because of having increased the cutting tunnel, can make the basic extraction fully of ore body, has improved the rate of extraction; The operation simultaneously of a plurality of work planes of stope has increased the ore removal ability, has reduced reservation nature ore pillar again, has reduced the loss late and the rate of dilution; Increase the uphill slope that cuts oral area to the two layer cutting tunnel of going up a hill by cutting basic skill or training's journey, improved the ore handling efficiency greatly, increased the ore removal ability.
Description of drawings
Fig. 1: longitudinal projection's schematic diagram of flat-grade mine body overall mining method in the typical prior art;
The A-A sectional view of Fig. 2: Fig. 1;
Fig. 3: longitudinal projection of the present invention schematic diagram;
The B-B sectional view of Fig. 4: Fig. 3;
The C-C sectional view of Fig. 5: Fig. 3.
The specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment, but protection scope of the present invention is not limited thereto:
Embodiment 1
With the stope object of one 425 meters stage casing 9# gold mine stopes as present embodiment, concrete mining step is as follows:
(1) nugget is arranged and inscape
As shown in Figure 3,1 drift, 425 meters following stage casings discloses ore body 6 and moves towards long 39 meters, on average thick 2.80 meters in ore body 6, ore body 6 mean obliquity α are 28 °, 53 meters of 7 inclined length of horizon in 425 meters following stage casings 1 and 450 meters last stage casings, foundation 9 thick 3 meters is reserved the nature ore pillar and is reserved 7 meters of ore scraper-trough conveyer 8 spacings with ore body grade and the firm degree of top board flexibly.
(2) adopt accurate cutting work
The driving cutting is gone up a hill and 3 is gone up a hill with the pedestrian that stage casing 7 connects on 2 and 450 meters in the ore body 6 that 1 stage of stage casing gallery discloses under 425 meters, form return air and pedestrains safety system, in cutting 3 tiltedly long 3 meters constructions tunnel 4 that undercuts of going up a hill, at foundation 9 every 7 meters digging ore scraper-trough conveyers 8.At last, construct two layers and cut tunnel 10 at cutting 3 tiltedly long 20～22 meters of going up a hill.Fig. 4 is the B-B sectional view of Fig. 3.Fig. 5 is the C-C sectional view of Fig. 3, just as shown in the drawing, by cutting basic skill or training's journey the go up a hill uphill slope α (28 °) in 3 oral areas to two layer cutting tunnel 10 of cutting is increased and is β (40 °), simultaneously at the cutting 3 oral area support drawing chutes 11 of going up a hill, so that emit the ore of back production in the cutting of top.After adopting the end of cut do, the beginning back production.
(3) actual mining
At first push forward comprehensively from bottom to top, when being advanced into 14～16 meters of inclined length of horizon, push forward comprehensively from bottom to top, work plane back production simultaneously up and down in the tunnel 4 that undercuts in two layers of cutting tunnel 10.Ore deposit employing shallow bore hole driling explosion falls.Top, the base plate of ore body can not be worn out in cutter big gun hole by institute.The stope ore handling is with the manpower haulage, the top ore by cutting go up a hill 3 and funnel 11 emit, the bottom ore is emitted by ore scraper-trough conveyer 8, after its underpart leak installs to down the mine car of the stage haulage way in stage casing 1 transports.This stope roof and floor rock is a migmatitization granite, belongs to than steady type, and it is many based on circle to reserve the nature ore pillar, 3～4 meters of diameters.The stope substoping grouts the artificial ore pillar material and easily carries, and is many with artificial ore pillar replacement nature ore pillar in the stope.Stope the key technical indexes table sees Table 1.
425 meters stage casings of table 1 9# stope the key technical indexes table
By These parameters as can be seen, this production capacity of mining field is 85 ton per days, loss late 9.74%, the rate of dilution 10.03%, the rate of extraction 90.26%.When utilizing breast stoping of the present invention to exploit gently inclined orebody, go up a hill in cutting and to have dropped into the cutting engineering proposal, can make the basic extraction fully of ore body, improved the rate of extraction greatly, solve the technical barrier of the stope ore removal ability and the raising rate of extraction preferably, guaranteed the recovery to greatest extent of resource.The input of this project can make and reclaim 3200 tons of gold ores more than a year, and 11.90 kilograms of amounts of metal have been obtained favorable economic benefit.
Embodiment 2
With the stope object of one 450 meters stage casing 3# gold mine stopes as present embodiment, concrete mining step is as follows:
(1) nugget is arranged and inscape
As shown in Figure 3,3 drifts, 450 meters following stage casings disclose ore body 6 and move towards long 53 meters, on average thick 2.90 meters in ore body 6, ore body 6 mean obliquity α are 27 °, 55 meters of 7 inclined length of horizon in 450 meters following stage casings 1 and 475 meters last stage casings, foundation 9 thick 3 meters is reserved the nature ore pillar and is reserved 10 meters of ore scraper-trough conveyer 8 spacings with ore body grade and the firm degree of top board flexibly.
(2) adopt accurate cutting work
The driving cutting is gone up a hill and 3 is gone up a hill with the pedestrian that stage casing 7 connects on 2 and 475 meters in the ore body 6 that 1 stage of stage casing gallery discloses under 450 meters, form return air and pedestrains safety system, in cutting 3 tiltedly long 5 meters constructions tunnel 4 that undercuts of going up a hill, at foundation 9 every 10 meters digging ore scraper-trough conveyers 8.At last, construct two layers and cut tunnel 10 at cutting 3 tiltedly long 25～27 meters of going up a hill.Fig. 4 is the B-B sectional view of Fig. 3.Fig. 5 is the C-C sectional view of Fig. 3, just as shown in the drawing, by cutting basic skill or training's journey the go up a hill uphill slope α (27 °) in 3 oral areas to two layer cutting tunnel 10 of cutting is increased and is β (60 °), simultaneously at the cutting 3 oral area support drawing chutes 11 of going up a hill, so that emit the ore of back production in the cutting of top.After adopting the end of cut do, the beginning back production.
(3) actual mining
At first push forward comprehensively from bottom to top, when being advanced into 8～10 meters of inclined length of horizon, push forward comprehensively from bottom to top, work plane back production simultaneously up and down in the tunnel 4 that undercuts in two layers of cutting tunnel 10.Ore deposit employing shallow bore hole driling explosion falls.Top, the base plate of ore body can not be worn out in cutter big gun hole by institute.The stope ore handling is with the manpower haulage, the top ore by cutting go up a hill 3 and funnel 11 emit, the bottom ore is emitted by ore scraper-trough conveyer 8, after its underpart leak installs to down the mine car of the stage haulage way in stage casing 1 transports.This stope roof and floor rock is a migmatitization granite, genus is than steady type, preset the nature ore pillar based on (approximately long 3 meters of irregular shapes, wide 4 meters), manually grout the stope barren rock that the ore pillar material is got, adopt as far as possible in the stope and manually grout ore pillar, stope mining can be divided into the back production simultaneously of 2～3 ladders.
This production capacity of mining field is 88 ton per days, loss late 9.24%, and the rate of dilution 10.11%, the rate of extraction 91.75%, stope the key technical indexes table is slightly.
With the stope object of one 575 stage casing 5# gold mine stopes as present embodiment, concrete mining step is as follows:
(1) nugget is arranged and inscape
As shown in Figure 3,3 drifts, 575 meters following stage casings disclose ore body 6 and move towards long 60 meters, on average thick 2.75 meters in ore body 6, ore body 6 mean obliquity α are 29 °, 52 meters of 7 inclined length of horizon in 575 meters following stage casings 1 and 600 meters last stage casings, foundation 9 thick 3 meters is reserved the nature ore pillar and is reserved 8 meters of ore scraper-trough conveyer 8 spacings with ore body grade and the firm degree of top board flexibly.
(2) adopt accurate cutting work
The driving cutting is gone up a hill and 3 is gone up a hill with the pedestrian that stage casing 7 connects on 2 and 600 meters in the ore body 6 that 1 stage of stage casing gallery discloses under 575 meters, form return air and pedestrains safety system, in cutting 3 tiltedly long 4 meters constructions tunnel 4 that undercuts of going up a hill, at foundation 9 every 8 meters digging ore scraper-trough conveyers 8.At last, construct two layers and cut tunnel 10 at cutting 3 tiltedly long 23～25 meters of going up a hill.Fig. 4 is the B-B sectional view of Fig. 3.Fig. 5 is the C-C sectional view of Fig. 3, just as shown in the drawing, by cutting basic skill or training's journey the go up a hill uphill slope α (29 °) in 3 oral areas to two layer cutting tunnel 10 of cutting is increased and is β (90 °), simultaneously at the cutting 3 oral area support drawing chutes 11 of going up a hill, so that emit the ore of back production in the cutting of top.After adopting the end of cut do, the beginning back production.
(3) actual mining
At first push forward comprehensively from bottom to top, when being advanced into 4～5 meters of inclined length of horizon, push forward comprehensively from bottom to top, work plane back production simultaneously up and down in the tunnel 4 that undercuts in two layers of cutting tunnel 10.Ore deposit employing shallow bore hole driling explosion falls.Top, the base plate of ore body can not be worn out in cutter big gun hole by institute.The stope ore handling is with the manpower haulage, the top ore by cutting go up a hill 3 and funnel 11 emit, the bottom ore is emitted by ore scraper-trough conveyer 8, after its underpart leak installs to down the mine car of the stage haulage way in stage casing 1 transports.This stope roof and floor rock is a migmatitization granite, genus is than steady type, preset the nature ore pillar based on (approximately long 3～4 meters of irregular shapes, wide 4～5 meters), manually grout the stope barren rock that the ore pillar material is got, adopt as far as possible in the stope and manually grout ore pillar, stope mining can be divided into the back production simultaneously of 2～3 ladders.
This production capacity of mining field is 90 ton per days, loss late 8.73%, and the rate of dilution 9.86%, the rate of extraction 93.11%, stope the key technical indexes table is slightly.
Claims (4)
1. the new technology of flat-grade mine body overall mining method, the driving pedestrian goes up a hill and goes up a hill and the perforation of last stage casing with cutting in the ore body of midcourse phase gallery exposure down, in the cutting oral area construction tunnel that undercuts of going up a hill, at foundation digging ore scraper-trough conveyer, it is characterized in that in 1/3～1/2 cutting, two layers of cutting of oblique strong point construction tunnels of going up a hill, after adopting the end of cut do, the beginning back production.
2. the new technology of flat-grade mine body overall mining method as claimed in claim 1 is characterized in that in cutting tiltedly long 3～5 meters construction tunnel that undercuts of going up a hill, at foundation every 7～10 meters digging one ore scraper-trough conveyers.
3. the new technology of flat-grade mine body overall mining method as claimed in claim 1 or 2 is characterized in that by cutting basic skill or training's journey the go up a hill uphill slope α in oral area to two layer cutting tunnel of cutting being increased and being β: 40～90 °.
4. the new technology of flat-grade mine body overall mining method as claimed in claim 3, when it is characterized in that back production, be the scope of freedom at first with two layers of cutting tunnel, push forward back production from bottom to top comprehensively, when working to the rise is advanced into the oblique strong point in 1/5～1/2 two layers cutting supreme stage casing, tunnel, push forward work plane back production simultaneously up and down more from bottom to top comprehensively in the tunnel that undercuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102304398A CN101368482B (en) | 2008-10-16 | 2008-10-16 | Novel technique of slight-pitch ore body overall mining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102304398A CN101368482B (en) | 2008-10-16 | 2008-10-16 | Novel technique of slight-pitch ore body overall mining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101368482A CN101368482A (en) | 2009-02-18 |
| CN101368482B true CN101368482B (en) | 2010-06-02 |
Family
ID=40412468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102304398A Expired - Fee Related CN101368482B (en) | 2008-10-16 | 2008-10-16 | Novel technique of slight-pitch ore body overall mining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101368482B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812988B (en) * | 2010-03-22 | 2012-01-04 | 王书铭 | Method for mining gently dipping to steep dipping thick and large ore bodies |
| CN102536241B (en) * | 2012-01-18 | 2014-06-18 | 云南文山斗南锰业股份有限公司 | Tilting ore body stoping process |
| CN103790588B (en) * | 2014-01-15 | 2016-03-23 | 贵州开磷集团股份有限公司 | A kind of gently inclined orebody is from slipping mining methods |
| CN105019904B (en) * | 2015-07-23 | 2017-04-12 | 中南大学 | Mining- machine-based slowly inclined thin ore vein mechanized continuous mining method |
| CN105332707B (en) * | 2015-11-23 | 2018-08-07 | 武汉理工大学 | The very thin stratiform jade nugget shape of low-angle dip cuts pushing tow ore removal mining methods |
| CN105240017B (en) * | 2015-11-23 | 2019-03-08 | 武汉理工大学 | A kind of very thin jade nugget shape cutting pushing tow ore removal mining methods of bilayer |
| CN105240016B (en) * | 2015-11-23 | 2019-03-08 | 武汉理工大学 | Low-angle dip lamelliform jade mine nugget cutting rod band pulls filling mining method |
| CN107503749A (en) * | 2017-09-15 | 2017-12-22 | 核工业北京化工冶金研究院 | A kind of trackless staged breast stoping for tilting vein orebody |
| CN108999611A (en) * | 2018-07-09 | 2018-12-14 | 中国恩菲工程技术有限公司 | It continuously undercuts propulsion method to angie type |
| CN109209383B (en) * | 2018-10-19 | 2021-01-26 | 湖北杉树垭矿业有限公司 | Method for preventing and treating rock burst by double-upward-mountain mining |
| CN114893183B (en) * | 2022-04-29 | 2024-10-08 | 西安建筑科技大学 | Horizontal or gentle-inclined thin ore body inclined slitting mining process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131368C (en) * | 2002-03-05 | 2003-12-17 | 殷惠钧 | Mining method by cutting ore breakdown and dry filling artificial ore pillars |
-
2008
- 2008-10-16 CN CN2008102304398A patent/CN101368482B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131368C (en) * | 2002-03-05 | 2003-12-17 | 殷惠钧 | Mining method by cutting ore breakdown and dry filling artificial ore pillars |
Non-Patent Citations (8)
| Title |
|---|
| 侯太鹏.缓倾斜薄、中厚矿层采矿方法探讨.化工矿物与加工25 6.1996,25(6),23-26. |
| 侯太鹏.缓倾斜薄、中厚矿层采矿方法探讨.化工矿物与加工25 6.1996,25(6),23-26. * |
| 刘国栋.缓倾斜薄矿体采矿方法的应用.湖南冶金 2.1993,(2),18-21. |
| 刘国栋.缓倾斜薄矿体采矿方法的应用.湖南冶金 2.1993,(2),18-21. * |
| 王鸿礼.全面采矿法在我矿缓倾斜薄矿体中的应用.云南冶金 4.1982,(4),1-3. |
| 王鸿礼.全面采矿法在我矿缓倾斜薄矿体中的应用.云南冶金 4.1982,(4),1-3. * |
| 赵彬等 .缓倾斜中厚难采矿体开采技术探讨.化工矿物与加工 2.2008,(2),34-37. |
| 赵彬等 .缓倾斜中厚难采矿体开采技术探讨.化工矿物与加工 2.2008,(2),34-37. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101368482A (en) | 2009-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101368482B (en) | Novel technique of slight-pitch ore body overall mining method | |
| CN108612530B (en) | Mining method for hanging wall surrounding rock crushing inclined medium-thickness ore body | |
| CN103590831B (en) | A kind of gentle dip is thin-the novel mining methods of middle thickness orebody | |
| CN101338674B (en) | Non-pillar sublevel caving mining method for direct loading for ore | |
| CN104060991B (en) | A kind of for ramp upward ut and fill stoping in the arteries and veins of Gently inclined thin vein | |
| CN104481539B (en) | From kerve tight-face blasting caved stopes | |
| CN104533416B (en) | Pole big thick ore body massive mechanical non-pillar sublevel caving mining methods | |
| CN107829742B (en) | Caving-filling-open stope-caving mining method | |
| CN103437769B (en) | Combination is reproduced structure medium-length hole ore blast and is worked in coordination with cable bolting afterwards filling mining method | |
| CN101509377B (en) | High-dipping ore block house column mining method | |
| CN102635356A (en) | Medium-length hole mining method in multiple blasting free faces of high dipping thin veins | |
| CN1474032A (en) | Continuous mining method of stepped sectional extruding and ore caving followed by filling | |
| CN104806244A (en) | Filling mining method for slant middle-thick ore body | |
| CN111894584B (en) | Cemented filling mining method for fully-pseudo-arranged reserved roadway of slowly-inclined thin ore body | |
| CN109339783A (en) | The route open stope afterwards filling mining method of gently inclined medium thick orebody | |
| CN105649631A (en) | Efficient mechanical mining method for gently-inclined thin ore bodies | |
| CN110259451A (en) | A kind of efficient mining methods of gently inclined medium thick orebody Pre-control roof | |
| CN105626071A (en) | Mining method for gently inclined thin ore body | |
| CN105909247A (en) | Non-pillar sublevel mining cemented filling mining method | |
| CN105019904A (en) | Mining- machine-based slowly inclined thin ore vein mechanized continuous mining method | |
| CN101737053A (en) | Natural caving method suitable for slowly-inclined thick and large ore bodies | |
| CN104018836A (en) | Divided mining method for inclined medium-thick ore body with unstable false roof | |
| CN104481543A (en) | Sub-level shrinkage caving method | |
| CN1982649A (en) | Mining method | |
| CN1693662A (en) | Improved sublevel caving method without bottom column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LINGBAO JINYUAN MINING CO., LTD. Free format text: FORMER NAME: LINGBAO CITY JINYUAN MINING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 472500, Jincheng Road, Lingbao City, Henan, Sanmenxia 20 Patentee after: LINGBAO JINYUAN MINING INDUSTRY Co.,Ltd. Address before: 472500, Jincheng Road, Chengguan Town, Lingbao City, Henan province 20 Patentee before: Lingbao Jinyuan Mining Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 |