CN1186520C - Method for constructing artificial pillars made of binded two materials - Google Patents
Method for constructing artificial pillars made of binded two materials Download PDFInfo
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- CN1186520C CN1186520C CNB031000517A CN03100051A CN1186520C CN 1186520 C CN1186520 C CN 1186520C CN B031000517 A CNB031000517 A CN B031000517A CN 03100051 A CN03100051 A CN 03100051A CN 1186520 C CN1186520 C CN 1186520C
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Abstract
The present invention provides a method for constructing an artificial stud made of two cemented materials, which is characterized in that a vein penetration tunnel is excavated inside along the vertical ore body course trend of a lower block rock transportation and air opening to explore clearly the occurrence conditions of an ore body; one prospecting which is also used as a heading raised shaft from bottom to top is digged and penetrated within the range of the middle sections of the upper and the lower parts of layout ore blocks, clean ores are formed in the middle section of the lower part of the ore body in the mode of cutting; artificial studs are constructed in a cutting layer; stoping is carried out to the level of the middle section of the upper part by a method that a short-hole shrinkage method is adopted from bottom to top; after the stoping is carried out, operators go out of an ore well and the ores are eliminated to empty the ore well; all tunnels which are communicated with a mining field in the middle section of the lower part are waqlled, clogged and sealed tightly by using block stones, such as cement mortar; in a small volume waste area, No. 425 bagged cement and driving waste stones are watered and stirred and are all filled in the waste area until the waste area is filled; pillars preserve health for 7 to 10 days, and stoping is carried out to adjacent stope rooms by using the short-hole shrinkage method. The present invention has the advantages that artificial stud is rapidly formed and half the time is saved.
Description
Technical field:
The invention belongs to the metal mining method, incorporate the row of pillar recovery and dead zone processing into, be under the jurisdiction of shrinkage method pillar recovery technical field in this group of pillar recovery method of opening wide mineral building, the artificial intervening pillar construction method of two kinds of material gluings of a kind of employing particularly is provided.
Background technology
Shallow eye shrinkage stoping is to come out and through producing after mine locating visits clear orebody mining technical condition, divide several nuggets according to ore-rock stability on orebody trend length in two stages (or stage casing) developing up and down.General 40～the 50m of nugget length, miding level height 35～60m, ore body horizontal breadth 3～15m, the slanting angle of ore body is greater than 55 °.And divide earlier mineral building and ore pillar before the block stoping, and ore pillar comprise foundation (thick 3～5m), fore-set (and high 3～5m) with studding (wide by 5～8m), ore pillar ore deposit amount generally accounts for about 30% of nugget ore deposit amount.Its back production step is earlier to use the shallow hole shrinkage stoping method rooming, treat mineral building adopted and go out clean ore after reclaim ore pillar again.The general studding that reclaims earlier of the method that reclaims ore pillar reclaims top-bottom pillar again.To the fan shaped medium length hole rock drilling, divide the disposable charge explosion of plurality of sections to reclaim on using vertically in the stope connecting taxiway of studding recovery method in studding; And top-bottom pillar, be in tunnel, last stage casing vertical down to last to the Drilling fan shaped medium length hole, the avalanche of detonating of also disposable whole powder charge branch plurality of sections is reclaimed.These background informations can be found on university textbook, but we and above-mentioned recovery method difference are, ore pillar is divided good back and also used the shallow hole shrinkage stoping method back production earlier before the goaf is formed, adopt the dead zone, back and form the globality artificial intervening pillar with two kinds of material cementing fills again, again its adjacent stope of back production.
Gold 1993＜8〉application of thick gold ore-body in inclination " at interval artificial intervening pillar shrink breast stoping " of 26～28 publications introduce Su Jia shop, Xixia City, Shandong Province gold mine, ore body is made up of auriferous pyrite quartz vein, yellow iron sericitolite etc., 35～45 ° at inclination angle, average vertical thickness 4m, use is the concrete applicable cases and the pluses and minuses of the back production of artificial intervening pillar shrink breast stoping at interval.Divide nugget along orebody trend with adopting the accurate slot raise of holding concurrently, disposable pick 3m is wide for courtyard, the centre is built the wide 2m of studding at interval by laying bricks or stones with barren rock, cutting well when a side stays the wide space of 1m as pedestrian, ventilation, the back production of double as mineral building, both sides artificial intervening pillar are at interval constructed afterwards the middle mineral building of back production again.Because of thick in the ore body and inclination, mineral building back production shrink breast stoping, i.e. mineral building layering raise mining, local ore removal stays the part ore and adopt workbench on continuing, and mineral building has been adopted afterwards with a large amount of ore removals of scraper.This law great advantage is that shrink stone does not push up the end and studding, ore recovery rate height; To construct workload big and shortcoming is artificial partition wall.Its relevant part with this law: the one, the back production of nugget studding elder generation; The 2nd, studding is with manually constructing; The 3rd, rooming again after studding is constructed.And difference is: the one, and a column length difference, this law 4～7m; The 2nd, do not stay any space after the studding back production, and be to use integral body of all glued one-tenth of two kinds of materials.
Summary of the invention
The invention provides the artificial intervening pillar construction method of two kinds of material gluings of a kind of employing, solved (the problem of 3.0～15.0m) continuous (trend and vertical length are all greater than 100m) and the back production of grade higher (more than 7～10g/t) rock gold ore-body thick in the high-dipping (55～90 °), replace the ore ore pillar with artificial ore pillar, goaf after middle part back production of continuous ore body and ore removal finish is spaced from each other, and adjacent stope can use production capacity big, the shallow hole shrinkage stoping method exploitation that efficiency is high and cost of production is low, stop its goaf to enlarge to produce and cave in, cause ore removal that bigger loss and dilution take place; In addition, for making artificial intervening pillar back production and formation speed faster, so, just require the back production length of studding to dwindle, extraction ore deposit and loading time are short, and require the strength of filling mass of globality to reach more than 5～7Mpa.
Concrete grammar of the present invention is:
(1) visits orebody occurrence such as clear ore body horizontal breadth, inclination angle, grade, double dirt loader ore removal lane of making the shallow hole shrinkage stoping method stope, this tunnel by the vertical orebody trend driving of the outer transportation of lower wall arteries and veins Chuan Mai tunnel with the airway;
(2) delimit in stage casing up and down and dig a mine locating double as in the nugget scope from bottom to top and adopt accurate courtyard;
(3) stage casing, ore body bottom is by 4～7m length, and the overall with cutting also all goes out clean ore;
(4) at incised layer construction reinforced bar concrete artificial sill pillar;
(5) adopt the shallow hole shrinkage stoping method back production to last stage casing level from bottom to top by nugget total length and the complete thick 3～7m of ore body;
(6) a large amount of ore removals and the whole emptying of ore after the mineral building back production;
(7) tunnel that all and this stope is mutually saturating adds cement mortar with piece stone and builds a wall to block and obturage in the stage casing, bottom;
(8) C10～C15 concrete (adding rubble by cement, river sand) filling is generally used in this small size goaf, but we are in order to accelerate the formation speed of artificial intervening pillar, only use No. 425 sacked cements to add water with the driving barren rock, water/binder ratio is 0.5-0.7, stir the back whole fill to the goaf, till filling up;
(9) this class ore pillar was down-hole health 7-10 days, and the adjacent mineral building of ore body can be used the shallow hole shrinkage stoping method back production.
The invention has the advantages that: the one, form artificial intervening pillar rapidly, ore body upper lower burrs country rock is played support action; The 2nd, the stope width is narrow, and short (4～7m * 3～7m) about its vixible ore reserve 3500t, begin to finish to finish only 5～6 months to the filling of whole dead zones to ore removal from mining, one of apply for a patent than us and save time half again with length; The 3rd, artificial intervening pillar all uses the cementitious materials filling, the strength of filling mass height, and 7d reaches 5.5Mpa, and 21d can reach 14.4Mpa; The 4th, help adjacent stope and use the shallow hole shrinkage stoping method back production.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is that the present invention prospects and adopts accurate schematic diagram, and Fig. 2 is the present invention's schematic diagram that cuts and dig up mine, and Fig. 3 is an ore removal schematic diagram of the present invention, and Fig. 4 is a filling schematic diagram of the present invention.Wherein descend stage casing haulage way 1, wear arteries and veins and dirt loader ore removal prospecting drift 2, prospect and adopt accurate courtyard 3, industry ore body 4, last stage casing haulage way 5, steel concrete foundation 6 is adopted down ore 7, cemented fill 8.
The specific embodiment
19 line courtyards mine locating back, stage casing, Hetai Gold Mine, Gaoyao City, Guangdong Prov. Yun Xi mining area-40 ore body is continuous, average thickness 3～5m, and miding level height 50m, ore body is at the east-west length of 19 lines m more than 100, average grade 8.26g/t.Concrete construction sequence is shown in Fig. 1-4: (1) is prospected and is adopted standard; (2) cutting and mining; (3) emptying ore; (4) two kinds of material cementing fills are till filling up.
Claims (1)
1, the artificial intervening pillar construction method of two kinds of material gluings of a kind of employing is characterized in that:
A, tunnel the Chuan Mai tunnel by the vertical orebody trend of the outer transportation of lower wall arteries and veins and visit orebody occurrence such as clear ore body horizontal breadth, inclination angle, grade, double dirt loader ore removal tunnel of making the shallow hole shrinkage stoping method stope, this tunnel with the airway;
B, delimit in stage casing up and down and to dig a mine locating double as in the nugget scope from bottom to top and adopt accurate courtyard;
C, stage casing, ore body bottom are by 4～7m length, and the overall with cutting also all goes out clean ore;
D, at incised layer construction reinforced bar concrete artificial sill pillar;
E, adopt the shallow hole shrinkage stoping method back production to last stage casing level from bottom to top by the complete thick 3～7m of nugget total length and ore body;
Ore removal is also the whole emptying of ore after f, the mineral building back production;
G, tunnel that all and this stope is mutually saturating adds cement mortar with piece stone and builds a wall to block and obturage in the stage casing, bottom;
H, small size goaf add water with No. 425 sacked cements with the driving barren rock, and water/binder ratio is 0.5-0.7, stirs the back whole fill to the goaf, till filling up;
I, ore pillar be down-hole health 7-10 days, the shallow hole shrinkage stoping method back production of the adjacent mineral building of ore body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031000517A CN1186520C (en) | 2003-01-08 | 2003-01-08 | Method for constructing artificial pillars made of binded two materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031000517A CN1186520C (en) | 2003-01-08 | 2003-01-08 | Method for constructing artificial pillars made of binded two materials |
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| CN1424488A CN1424488A (en) | 2003-06-18 |
| CN1186520C true CN1186520C (en) | 2005-01-26 |
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| CNB031000517A Expired - Fee Related CN1186520C (en) | 2003-01-08 | 2003-01-08 | Method for constructing artificial pillars made of binded two materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529179A (en) * | 2019-09-04 | 2019-12-03 | 长沙矿山研究院有限责任公司 | A kind of artificial false lane construction method of anchor slab |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114854B (en) * | 2013-02-18 | 2015-01-14 | 中南大学 | Pillar robbing method of reconstructed artificial stud |
| CN104074519B (en) * | 2014-07-04 | 2016-03-16 | 大冶有色金属有限责任公司 | A kind of hole depth sublevel stoping of floating |
| CN105626069B (en) * | 2016-01-19 | 2018-04-27 | 中国海洋石油集团有限公司 | Concrete artificial ore pillar and its construction method in a kind of outer block |
| CN106089205A (en) * | 2016-08-19 | 2016-11-09 | 贵州晨辉达矿业工程设计有限公司 | A kind of room-and-pillar method filling mining method being applicable to very thin ore body under water body |
| CN106761758B (en) * | 2017-01-18 | 2019-01-01 | 长沙有色冶金设计研究院有限公司 | Artificial concrete guard wall reconstructs studding waste fill mining methods |
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2003
- 2003-01-08 CN CNB031000517A patent/CN1186520C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529179A (en) * | 2019-09-04 | 2019-12-03 | 长沙矿山研究院有限责任公司 | A kind of artificial false lane construction method of anchor slab |
| CN110529179B (en) * | 2019-09-04 | 2021-01-15 | 长沙矿山研究院有限责任公司 | Anchor plate artificial false tunnel construction method |
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