CN101737053A - Natural caving method suitable for slowly-inclined thick and large ore bodies - Google Patents

Natural caving method suitable for slowly-inclined thick and large ore bodies Download PDF

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Publication number
CN101737053A
CN101737053A CN200910172611A CN200910172611A CN101737053A CN 101737053 A CN101737053 A CN 101737053A CN 200910172611 A CN200910172611 A CN 200910172611A CN 200910172611 A CN200910172611 A CN 200910172611A CN 101737053 A CN101737053 A CN 101737053A
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CN
China
Prior art keywords
ore
lane
tunnel
scraper
bucket
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Application number
CN200910172611A
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Chinese (zh)
Inventor
贺金升
何岳
许建谋
郭占飞
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灵宝市金源矿业有限责任公司
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Application filed by 灵宝市金源矿业有限责任公司 filed Critical 灵宝市金源矿业有限责任公司
Priority to CN200910172611A priority Critical patent/CN101737053A/en
Publication of CN101737053A publication Critical patent/CN101737053A/en

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Abstract

The invention discloses a natural caving method suitable for slowly-inclined thick and large ore bodies, and belongs to the field of mine exploitation. The method comprises the following steps: arranging pedestrian mountain-climbing and ore removal lanes on ore body foot walls, cutting subsection contact lanes layer by layer from the pedestrian mountain-climbing direction to the ore body direction, drawing back a flat lane serving as a scraper lane under the ore body foot wall and at the other end of each subsection contact lane, and communicating each scraper lane with the ore removal lane through an ore pass; and constructing a bucket bottom and a bucket neck in turn from the scraper lane to the two sides thereof, and constructing an undercutting lane above the bucket neck and performing medium-deep hole blast by using the undercutting lane. In the scheme, manpower can be used in the undercutting lane or the scraper lane positioned on the ore body foot walls, so the production safety is ensured; and compared with the common natural caving method and the open-stope method, the method has small tunneling amount and strong production capacity. The method for exploiting the slowly-inclined thick and large broken ore bodies with easily-collapsing top slabs can obviously reduce the cost and comprehensive cost of mined ton ores.

Description

Be applicable to the free breakage mining codes of gentle dip big thick ore body
Technical field
The invention belongs to mine mining field, be specifically related to a kind of free breakage mining codes that are applicable to the gentle dip big thick ore body.
Background technology
The exploitation of gentle dip big thick ore body is a universally acknowledged mining difficult problem, and at present main what use is openstope method, but that this method often requires with ore is firm, can not adapt to all geological types.Steep and sliding mass, river, big lake are arranged as the polymetallic ore face of land, Luoshan mountain shape from ore body top process, underground have exploit the goaf that gold ore stays for many years, add that the big fragmentation of ore body thickness, top board very easily cave in, if utilize open-stope mining then to have outstanding potential safety hazard, the mining difficulty is very big.
The free breakage method is a kind of with high content of technology, low-cost, high efficiency underground mining method, production technology advanced person, have certain scale and benefit, its principle is: in being easy to the ore body of free breakage, utilize ore body itself intrinsic joint fissure distribution characteristics and low-intensity characteristic, carry out undercuting of certain area in the nugget bottom and form the scope of freedom of ore inbreak, be aided with the tunnel in case of necessity, deep hole cuts group, weaken nugget and getting in touch of ore and country rock on every side, change the distribution of ore body internal stress, impelling ore to produce gradually on request destroys, unstability also becomes suitable ore fragmentation by the effect free breakage of ore body gravitational field, thereby reaches the ore deposit purpose.The free breakage method has very strong advantage for exploitation inclination, high-dipping ore block, is considered to be unsuitable for exploiting gently inclined orebody usually.
Summary of the invention
The objective of the invention is to provides a kind of free breakage mining codes at the gentle dip big thick ore body, and this method both can guarantee production safety, can reduce the driving amount that drop in ton ore deposit again, improves production capacity.
For realizing this purpose, the technical solution used in the present invention is: the free breakage mining codes that are applicable to the gentle dip big thick ore body, its step comprises: arrange that at the ore body lower wall pedestrian goes up a hill and the ore removal tunnel, go up a hill from the pedestrian and successively to dig the segmentation connecting taxiway to the ore body direction, draw back a gallery (along orebody trend) at the other end of ore body lower wall, each segmentation connecting taxiway and do the scraper tunnel, each scraper tunnel is by ore pass and ore removal roadway linking; From the scraper tunnel to its both sides bucket neck of wearing and struggle against of constructing successively, undercut tunnel and utilize the tunnel that undercuts to carry out medium-length hole blasting of construction above the bucket neck.
Described ore removal tunnel links to each other with the lower wall haulage drift.
The quick-fried ore that falls is worn and is fallen in the scraper tunnel along bucket neck, bucket, after transport through ore pass, ore removal tunnel, lower wall haulage drift successively.
In the technical scheme provided by the present invention, the workman can be arranged in the undercut tunnel or the operation of scraper tunnel of ore body lower wall, and production safety is protected; Compare with common natural caving method and open-stope method, this method driving amount is little, and production capacity is strong.The gently inclined orebody that utilizes the big fragmentation of this method exploitation ore body thickness, top board very easily to cave in can obviously reduce mining ton ore deposit cost and mining ton ore deposit integrated cost.
Description of drawings
Fig. 1 is that the present invention adopts accurate engineering and induces the vertical perspective view of engineering.
The specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described:
Certain stope face of land mountain shape is steep, underground have exploit the goaf that gold ore stays for many years, there are sliding mass and Hu He process in ore body top, the big fragmentation of ore body thickness, top board very easily caves in, the mining difficulty is very big.Consider the concrete geological conditions in this mining area, technical scheme of the present invention on probation is exploited ore body: the free breakage mining codes that are applicable to the gentle dip big thick ore body, as shown in Figure 1, its step comprises: arrange that at the ore body lower wall pedestrian goes up a hill 9 and ore removal tunnel 8, go up a hill from the pedestrian and 9 successively to dig segmentation connecting taxiway 4 to ore body 1 direction, draw back a gallery at the other end of ore body 1 lower wall, each segmentation connecting taxiway 4 and do scraper tunnel 6, each scraper tunnel 6 connects by ore pass 7 and ore removal tunnel 8, and ore removal tunnel 8 links to each other with lower wall haulage drift 10; Wear 5 and bucket neck 3 from scraper tunnel 6 to its both sides bucket of constructing successively, undercut tunnel 2 and utilize the tunnel 2 that undercuts to carry out medium-length hole blasting of construction above bucket neck 3.The quick-fried ore that falls is worn 5 and is fallen in the scraper tunnel 6 from the neck 3 that struggles against, bucket, after transport through ore pass 7, ore removal tunnel 8, lower wall haulage drift 10 successively.After using this method, mining ton ore deposit cost has dropped to 36.11 yuan/ton by 44.19 yuan/ton, and mining ton ore deposit integrated cost has dropped to 58.02 yuan/ton by 100.80 yuan/ton.

Claims (3)

1. be applicable to the free breakage mining codes of gentle dip big thick ore body, it is characterized in that, its step comprises: arrange that at the ore body lower wall pedestrian goes up a hill and the ore removal tunnel, go up a hill from the pedestrian and successively to dig the segmentation connecting taxiway to the ore body direction, draw back a gallery at the other end of ore body lower wall, each segmentation connecting taxiway and do the scraper tunnel, each scraper tunnel is by ore pass and ore removal roadway linking; From the scraper tunnel to its both sides bucket neck of wearing and struggle against of constructing successively, undercut tunnel and utilize the tunnel that undercuts to carry out medium-length hole blasting of construction above the bucket neck.
2. be applicable to the free breakage mining codes of gentle dip big thick ore body according to claim 1, it is characterized in that described ore removal tunnel links to each other with the lower wall haulage drift.
3. be applicable to the free breakage mining codes of gentle dip big thick ore body as claimed in claim 1 or 2, it is characterized in that the quick-fried ore that falls is worn and fallen in the scraper tunnel along bucket neck, bucket, after transport through ore pass, ore removal tunnel, lower wall haulage drift successively.
CN200910172611A 2009-11-18 2009-11-18 Natural caving method suitable for slowly-inclined thick and large ore bodies CN101737053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910172611A CN101737053A (en) 2009-11-18 2009-11-18 Natural caving method suitable for slowly-inclined thick and large ore bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910172611A CN101737053A (en) 2009-11-18 2009-11-18 Natural caving method suitable for slowly-inclined thick and large ore bodies

Publications (1)

Publication Number Publication Date
CN101737053A true CN101737053A (en) 2010-06-16

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075157A (en) * 2013-02-18 2013-05-01 中南大学 Advance roof-cutting bottom-free structural bench breaking continuous mining method for flat inclined ore body
CN103362510A (en) * 2013-08-01 2013-10-23 广西大学 Sublevel-drilling bench-combination ore-removal sublevel-room mining method
CN103590831A (en) * 2013-11-22 2014-02-19 北京科技大学 Novel mining method of gently-inclined thin and medium thickness ore bodies
CN103670417A (en) * 2013-12-26 2014-03-26 鞍钢集团矿业公司 Non-pillar sublevel caving mining method for discharging ores from side part of electric rake roadway
CN103790588A (en) * 2014-01-15 2014-05-14 贵州开磷(集团)有限责任公司 Self-slippage mining method of gentle dip ore body
CN103971289A (en) * 2014-04-04 2014-08-06 中国恩菲工程技术有限公司 Mine drawing data processing method and device
CN106499395A (en) * 2016-12-05 2017-03-15 广西大学 The quick-fried power scraper of shallow bore hole rock drilling cooperates with haulage Sublevel room mining
CN107524443A (en) * 2017-09-12 2017-12-29 中国黄金集团中原矿业有限公司 Special big thick ore body strides continuous block caving mining method built on the sand
CN110593876A (en) * 2019-09-25 2019-12-20 中国恩菲工程技术有限公司 Natural caving mining method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075157B (en) * 2013-02-18 2014-09-10 中南大学 Advance roof-cutting bottom-free structural bench breaking continuous mining method for flat inclined ore body
CN103075157A (en) * 2013-02-18 2013-05-01 中南大学 Advance roof-cutting bottom-free structural bench breaking continuous mining method for flat inclined ore body
CN103362510A (en) * 2013-08-01 2013-10-23 广西大学 Sublevel-drilling bench-combination ore-removal sublevel-room mining method
CN103590831A (en) * 2013-11-22 2014-02-19 北京科技大学 Novel mining method of gently-inclined thin and medium thickness ore bodies
CN103590831B (en) * 2013-11-22 2015-10-07 北京科技大学 A kind of gentle dip is thin-the novel mining methods of middle thickness orebody
CN103670417A (en) * 2013-12-26 2014-03-26 鞍钢集团矿业公司 Non-pillar sublevel caving mining method for discharging ores from side part of electric rake roadway
CN103670417B (en) * 2013-12-26 2016-02-03 鞍钢集团矿业公司 Utilize the bottom-column-free sectional caving stoping method of scraper tunnel sidepiece ore removal
CN103790588A (en) * 2014-01-15 2014-05-14 贵州开磷(集团)有限责任公司 Self-slippage mining method of gentle dip ore body
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
CN103971289A (en) * 2014-04-04 2014-08-06 中国恩菲工程技术有限公司 Mine drawing data processing method and device
CN103971289B (en) * 2014-04-04 2017-06-30 中国恩菲工程技术有限公司 The processing method and processing device of mine ore drawing data
CN106499395A (en) * 2016-12-05 2017-03-15 广西大学 The quick-fried power scraper of shallow bore hole rock drilling cooperates with haulage Sublevel room mining
CN107524443A (en) * 2017-09-12 2017-12-29 中国黄金集团中原矿业有限公司 Special big thick ore body strides continuous block caving mining method built on the sand
CN110593876A (en) * 2019-09-25 2019-12-20 中国恩菲工程技术有限公司 Natural caving mining method

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Application publication date: 20100616