CN103244140A - Method for arranging drilling chamber in backfill mining - Google Patents
Method for arranging drilling chamber in backfill mining Download PDFInfo
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- CN103244140A CN103244140A CN2013101840204A CN201310184020A CN103244140A CN 103244140 A CN103244140 A CN 103244140A CN 2013101840204 A CN2013101840204 A CN 2013101840204A CN 201310184020 A CN201310184020 A CN 201310184020A CN 103244140 A CN103244140 A CN 103244140A
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- drilling chamber
- obturation
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- stage casing
- mining
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Abstract
Disclosed is a method for arranging a drilling chamber in backfill mining. The method comprises the steps of during mining, forming a stable filling body through cemented filling after the last level mining is finished, during extraction of a replacing level, selectively arranging the drilling chamber of the replacing level in the last extracted and filled level filling body, tunneling the filling body from a connection roadway to a stope top from an air way, then, expanding slopes and brushing large sections to form the drilling chamber, performing hole-through to an air return way, and mining a next replacing level ore body in the drilling chamber. The method is simple to implement, reliable and practical, and after adoption of the method for arranging the drilling chamber in backfill mining, the strength of the filling body is weaker than that of the complete ore body, so that the working efficiency of tunneling projects is improved, ore body losses of a stope top structure are reduced simultaneously, and improvement of mine economic benefits is facilitated. Arranging positions of the drilling chamber can be selected reasonably according to actual conditions by means of the method.
Description
Technical field
The present invention relates to the method for arranging of drilling chamber in a kind of filling mining, be particularly useful for adopting the mine of consolidated fill high-stage large diameter, deep borehole method mining, take over the selection of drilling chamber position, stage casing.
Background technology
In the mining process, the exploitation of a last stage casing finishes the back consolidated fill at present, and drilling chamber is often selected to be arranged in the complete ore body when taking over the stage casing back production, takes over the exploitation work of stage casing ore body then in drilling chamber.Adopt excavation works such as above-mentioned existing method for arranging connection roadway, drilling chamber difficulty relatively, efficient is not high, and the drilling chamber position is lower, easy ponding, and cause a large amount of ore bodies losses, be unfavorable for that resource reclaims.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiency of existing arrangement, provides a kind of method for arranging simple, is conducive to improve the method for arranging of drilling chamber in the filling mining of production efficiency and resource recovery.
The technical solution adopted for the present invention to solve the technical problems is: the method for arranging of drilling chamber in a kind of filling mining, in the mining process, the exploitation of a last stage casing finishes the back consolidated fill and forms stable obturation, when taking over the back production in stage casing, the drilling chamber of taking over the stage casing is selected to be arranged in the last stage casing obturation of finishing back production and filling, obturation from air intake lane driving connection roadway to the stope top, expand group then, brush big section and form drilling chamber, hole-through to return airway, next in drilling chamber, take over the exploitation work of next stage casing ore body.
A described last stage casing obturation needs Stability Analysis of Structures to be beneficial to the digging of drilling chamber, and compressive strength reaches 2 ~ 3MPa, and adopts " worker " word steel-reinforcing bar-plank to carry out combined supporting to drilling chamber, and the supporting spacing is 1-2m; Need stay at the middle part during described driving drilling chamber and establish width is the preferred 3m of 2-4m() obturation bar post, vertically digging width by the slot raise position in obturation bar post is the cutting groove of 3 ~ 5m, is beneficial to the perforation of slot raise.
The present invention realizes simply, and is reliable and practical, adopt the method for arranging of drilling chamber in the filling mining after, because obturation is than complete ore body weak strength, improve the operating efficiency of excavation work, reduced the ore body loss of stope top structure simultaneously, be of value to the raising mine economic profit.Use the present invention, the border condition is carried out choose reasonable to the position of drilling chamber factually.
Description of drawings
Fig. 1 is drilling chamber of the present invention arrangement schematic diagram in a last stage casing obturation;
Fig. 2 is the I-I place generalized section of drilling chamber shown in Figure 1 arrangement in a last stage casing obturation;
Fig. 3 is the II-II generalized section of drilling chamber shown in Figure 1 arrangement in a last stage casing obturation.
Among the figure: 1-air intake lane, 2-return airway, 3-drilling chamber, the last stage casing obturation of 4-, 5-cutting groove, 6-obturation bar post, 7-slot raise, 8-connection roadway, next stage casing ore body of 9-.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
With reference to accompanying drawing, the method for arranging of drilling chamber in a kind of filling mining, in the mining process, big thick ore body particularly, the exploitation of a last stage casing finishes the back consolidated fill and forms stable obturation 4, when taking over the back production in stage casing, the drilling chamber 3 of taking over the stage casing is selected to be arranged in the last stage casing obturation 4 of finishing back production and filling, 1 driving connection roadway 8 expands group, the big section formation of brush drilling chamber 3 then to the obturation 4 at stope top from the air intake lane, hole-throughs to return airway 2; For guaranteeing the stability of drilling chamber 3 supportings, a last stage casing obturation 4 needs Stability Analysis of Structures to be beneficial to the digging of drilling chamber 3, and compressive strength reaches 2 ~ 3Mpa, and adopts " worker " word steel-reinforcing bar-plank to carry out combined supporting to drilling chamber, and the supporting spacing is 1m.Need stay at the middle part when tunneling drilling chamber 3 simultaneously and establish the obturation bar post 6 that width is 3m, vertically digging width by slot raise 7 positions in obturation bar post 6 is the cutting groove 5 of 4m, be beneficial to the perforation of slot raise 7, next in drilling chamber 3, take over the exploitation work of next stage casing ore body 9.
Arrange like this because obturation 4 than next complete stage casing ore body 9 weak strength, has improved the operating efficiency of excavation work, reduced the ore body loss of stope top structure simultaneously, be of value to the raising mine economic profit, this method for arranging is simple, practical.
Claims (3)
1. the method for arranging of drilling chamber in the filling mining, it is characterized in that: in the mining process, the exploitation of a last stage casing finishes the back consolidated fill and forms stable obturation, when taking over the back production in stage casing, the drilling chamber of taking over the stage casing is selected to be arranged in the last stage casing obturation of finishing back production and filling, obturation from air intake lane driving connection roadway to the stope top, expand group, the big section formation of brush drilling chamber then, hole-through to return airway, next in drilling chamber, take over the exploitation work of next stage casing ore body.
2. the method for arranging of drilling chamber in the filling mining according to claim 1, it is characterized in that: a last stage casing obturation compressive strength is 2 ~ 3MPa, and drilling chamber adopts " worker " word steel-reinforcing bar-plank to carry out combined supporting, and the supporting spacing is 1-2m.
3. the method for arranging of drilling chamber in the filling mining according to claim 1, it is characterized in that: driving need stay at the middle part during drilling chamber and establish the obturation bar post that width is 2-4m, and vertically digging width by the slot raise position in obturation bar post is the cutting groove of 3 ~ 5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101840204A CN103244140A (en) | 2013-05-17 | 2013-05-17 | Method for arranging drilling chamber in backfill mining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101840204A CN103244140A (en) | 2013-05-17 | 2013-05-17 | Method for arranging drilling chamber in backfill mining |
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| CN103244140A true CN103244140A (en) | 2013-08-14 |
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| CN2013101840204A Pending CN103244140A (en) | 2013-05-17 | 2013-05-17 | Method for arranging drilling chamber in backfill mining |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456788A (en) * | 2003-06-06 | 2003-11-19 | 中南大学 | Continuous mining process with deep hole dropping and top-bottom pillars mining in advance |
| CN201474347U (en) * | 2009-09-02 | 2010-05-19 | 济南钢城矿业有限公司 | Sublevel mining room |
| US20130071306A1 (en) * | 2011-08-16 | 2013-03-21 | John Camp | Battery disposal system |
-
2013
- 2013-05-17 CN CN2013101840204A patent/CN103244140A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456788A (en) * | 2003-06-06 | 2003-11-19 | 中南大学 | Continuous mining process with deep hole dropping and top-bottom pillars mining in advance |
| CN201474347U (en) * | 2009-09-02 | 2010-05-19 | 济南钢城矿业有限公司 | Sublevel mining room |
| US20130071306A1 (en) * | 2011-08-16 | 2013-03-21 | John Camp | Battery disposal system |
Non-Patent Citations (2)
| Title |
|---|
| 周华林: "空场嗣后充填采矿法充填体合理强度分布规律研究", 《中国优秀硕士学位论文全文数据库》 * |
| 费汉强: "大体积充填体下隔离中段凿岩硐室顶板安全厚度研究", 《采矿技术》 * |
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Application publication date: 20130814 |