CN107687340A - A kind of stoping method of difficult mining blocks - Google Patents

A kind of stoping method of difficult mining blocks Download PDF

Info

Publication number
CN107687340A
CN107687340A CN201710973924.3A CN201710973924A CN107687340A CN 107687340 A CN107687340 A CN 107687340A CN 201710973924 A CN201710973924 A CN 201710973924A CN 107687340 A CN107687340 A CN 107687340A
Authority
CN
China
Prior art keywords
stoping
mining blocks
tunnel
difficult mining
rock
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.)
Pending
Application number
CN201710973924.3A
Other languages
Chinese (zh)
Inventor
王辉石
游峰
朱毅
王芙蓉
李国荣
谢敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Dajishan Tungsten Industry Ltd Co
Original Assignee
Jiangxi Dajishan Tungsten Industry Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangxi Dajishan Tungsten Industry Ltd Co filed Critical Jiangxi Dajishan Tungsten Industry Ltd Co
Priority to CN201710973924.3A priority Critical patent/CN107687340A/en
Publication of CN107687340A publication Critical patent/CN107687340A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/22Methods of underground mining; Layouts therefor for ores, e.g. mining placers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D3/00Particular applications of blasting techniques
    • F42D3/04Particular applications of blasting techniques for rock blasting

Abstract

The invention discloses a kind of stoping method of difficult mining blocks, described method comprises the following steps:(1) rock tunnel, and vertical run arrangement Chuan Mai tunnels are dug along run in nugget lower wall;(2) long and medium hole drilling:Rock courtyard is drived in rock tunnel, drilling chamber is expanded after disclosing mineral ore;(3) arranged in chamber rig jewel hole, borehole using bunch holes;(4) tunneling construction is carried out using smooth Surface Blasting Technology;(5) tunnel and adit digging and supporting are carried out simultaneously, tunnel and chamber speedy drivage, quick supporting;(6) form groove in nugget both sides and carry out induction caving;(7) ore under adopting is attached in mine car using dirt loader.The present invention falls the method back production difficulty mining blocks of ore deposit using long and medium hole drilling, millisecond difference detonator explosion, realize the back production of difficult mining blocks, mineral resources have been reclaimed to greatest extent, improve back production efficiency, and this method is safe and reliable, simple and easy, advanced technology.

Description

A kind of stoping method of difficult mining blocks
Technical field
The invention belongs to mining engineering technical field, specifically, is related to a kind of stoping method of difficult mining blocks.
Background technology
Dajishan wolframite found and exploited in 1918, and 1958 start regular mechanical mining, so far existing last 100 yearses Production history, it is the maximum Quartz-vein Type Wolframite in the current whole world.Corporate restructuring in 2004, which is reassembled as Jiangxi Dajishan Mine tungsten industry, to be had Limit company, it is subordinate to Tungsten In Jiangxi Province industry Group Co., Ltd.The former t/ of design selecting ability 81.2 ten thousand in mine.Existing production scale is 75 Ten thousand t/, the t of year digging total amount 350,000, produce tungsten concentrate amount 3080t per year.Ore-rock is mainly that the shallow metasandstone of Cambrian system and slate are mutual Layer, hardness factor 8-10.Ore body is mainly high-dipping, extra narrow vein, and main mining method is shallow hole shrinkage method and stage mineral building Method.
Mine finds in production process, and part nugget is tomography, broken crisscross due to being influenceed by structure destruction, generally Exist in piece, rock mass is in cataclastic texture, and mechanical strength is low, during back production bucklingization it is violent, roadway deformation is serious, a large amount of pieces of stope Help roof fall, to stope mining and ore drawing work bring very big potential safety hazard, cause construction speed slowly and oil in place loss and The rate of extraction declines, and safety and cost management to mine bring very big pressure.
In existing ore body, tomography is crisscross, crushes serious, construction, joint, cranny development, rock crusher pole along the pulse It is unstable.Large area collapses in tunneling process for former development heading along the pulse, if using regular shallow shrinkage method back production, worker and sets It is standby to need to enter exploiting field, very big potential safety hazard be present.
For problem above, spy proposes the application.
The content of the invention
In order to solve problem above existing for prior art, the invention provides a kind of difficult mining blocks stoping method, the party Method is safe and reliable, simple and easy, advanced technology, back production efficiency high, and worker and equipment need not enter exploiting field, it is achieved thereby that difficult The back production of mining blocks, has reclaimed mineral resources to greatest extent, improves back production efficiency.
To achieve these goals, the present invention adopts the following technical scheme that:
A kind of difficult mining blocks stoping method, described method comprise the following steps:
(1) rock tunnel, and vertical run arrangement Chuan Mai tunnels are dug along run in nugget lower wall;
(2) long and medium hole drilling:Rock courtyard is drived in rock tunnel, region Jue Chuanmai tunnels are consolidated in country rock, is disclosed Drilling chamber is expanded after mineral ore;
(3) arranged in chamber jewel hole, borehole using bunch holes;
(4) tunneling construction is carried out using smooth Surface Blasting Technology;
(5) tunnel and adit digging and supporting are carried out simultaneously, tunnel and chamber speedy drivage, quick supporting;
(6) form groove in nugget both sides and carry out induction caving;
(7) ore under adopting is attached in mine car using dirt loader.
The present invention falls the method back production difficulty mining blocks of ore deposit using long and medium hole drilling, millisecond difference detonator explosion, realizes difficulty The back production of mining blocks, has reclaimed mineral resources to greatest extent, improves back production efficiency, and this method is safe and reliable, simple Easy, advanced technology.
KQJ100B type down-the-hole drill jewel holes are used in the present invention, borehole arrangement uses bunch holes cloth according to field condition Put.
Speedy drivage of the tissue to tunnel and chamber, digs soon soon props up in the present invention, shortens tunnel service time, reduces ground pressure Change the influence to engineering.
Further, the wide 2.2m in rock tunnel × high 2.4m in step (1), the wide 2.4m in Chuan Mai tunnels × high 2.6m.
Further, the cross-sectional area of the drilling chamber in step (2) is not less than wide by 3.6 × high 3.2m2
Further, minimum burden is 2.5m~3m, bottom hole pitch 2.8m~3m in step (3).
Further, the blasthole spacing of step (4) borehole blasting is not more than 400mm, and blasthole is parallel to each other, and blasthole bottom hole is same In one plane.
The present invention uses photoface exploision, carries out tunneling construction using smooth Surface Blasting Technology, reduces the destruction to peripheral rock.
Further, step (4) borehole blasting uses plastic detonating tube-non-electrical millisecond delay cap initiation system and primacord Dual initiation net, explosion uses emulsion, manual charging's method powder charge.
Further, ventilation process is used in blast area in step (4), is preferably divulged information using mechanical forced.
Further, the ventilation of described mechanical forced is by Leads to new breeze explosion in the auxiliary ventilation blower of fanning of fresh wind port installation Area, in lower air port, installation air exhauster, which extracts waste air out, drains into returnairshaft.
The present invention uses ventilation condition, accelerates the mass rate of emission of waste air.
Further, supporting is that gunite concrete is carried out while tunnel and adit digging in step (5).
The supporting in driving, needs to carry out concrete spraying support in time behind tunnel and adit digging, prevents peripheral rock from emitting Fall, safeguard stability of the roadway.
Further, the depth of groove is 3~5m in step (6).
Groove in the present invention is that the characteristic of easy avalanche, the induction of progress part are put built on the sand in itself using broken nugget Top, i.e. the medium-length hole ultra-deep 3-5m in nugget both sides arrangement, artificially form groove, accelerating top board natural caving.
Compared with prior art, beneficial effects of the present invention are:The present invention is quick-fried using long and medium hole drilling, millisecond difference detonator The method back production difficulty mining blocks for ore deposit of declining, realize the back production of difficult mining blocks, have reclaimed mineral resources to greatest extent, improve Back production efficiency, and this method does not need artificial and equipment to enter exploiting field, safe and reliable, simple and easy, advanced technology.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below Detailed description.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Base Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned Other embodiment, belong to the scope that the present invention is protected.
Embodiments of the invention difficulty mining blocks select dajishan wolframite, and nugget is located at the eastern wing thickness arteries and veins band ore deposit in 367m stage casings south In body, tomography is crisscross, and large area collapses in tunneling process for former development heading along the pulse, and drift is broken serious, structure Make, joint, cranny development, rock crusher pole built on the sand, the whole nugget of the ore removal of muck loader one can spontaneous caving, whole nugget is caving There are 4-5 rice height or 8-9 rice height, worker and equipment enter exploiting field, very big potential safety hazard be present.
The back production of difficult mining blocks is realized using the stoping method of the present invention, mineral resources has been reclaimed to greatest extent, has carried High back production efficiency, and this method need not artificial and equipment enter exploiting field, safe and reliable, simple and easy, advanced technology.
A kind of stoping method of difficult mining blocks of the embodiment of the present invention, comprises the following steps:
(1) rock tunnel, the wide 2.2m in rock tunnel × high 2.4m are dug along run in nugget lower wall, and vertical mineral ore is walked To arrangement Chuan Mai tunnels, the wide 2.4m in Chuan Mai tunnels × high 2.6m.
(2) long and medium hole drilling:Rock courtyard is drived in rock tunnel, region Jue Chuanmai tunnels are consolidated in country rock, is disclosed Drilling chamber is expanded after mineral ore, the cross-sectional area of drilling chamber is not less than wide by 3.6 × high 3.2m2
(3) in chamber jewel hole, borehole is arranged using bunch holes, and minimum burden is 2.5m~3m, bottom hole pitch 2.8m~ 3m。
(4) tunneling construction is carried out using smooth Surface Blasting Technology, the blasthole spacing of explosion is not more than 400mm, and blasthole is mutually flat OK, blasthole bottom hole is at grade.
Photoface exploision is used in the present embodiment, tunneling construction is carried out using smooth Surface Blasting Technology, reduces to peripheral rock Destroy.
Further scheme, explosion is using plastic detonating tube-non-electrical millisecond delay cap initiation system and pair of primacord Weight initiation net, explosion use emulsion, manual charging's method powder charge.
Further scheme uses ventilation process in blast area, is preferably divulged information using mechanical forced.
Mechanical forced ventilation described in the present embodiment is by Leads to new breeze explosion in the auxiliary ventilation blower of fanning of fresh wind port installation Area, in lower air port, installation air exhauster, which extracts waste air out, drains into returnairshaft.The present invention can improve part using as above ventilation condition Parts, accelerate waste air mass rate of emission.
(5) tunnel and adit digging and supporting are carried out simultaneously, tunnel and chamber speedy drivage, quick supporting;Supporting be Gunite concrete is carried out while tunnel and adit digging, the supporting in driving, needs to be sprayed in time behind tunnel and adit digging Concrete support is penetrated, peripheral rock inbreak is prevented, safeguards stability of the roadway.
(6) form groove in nugget both sides and carry out induction caving;Groove in the present embodiment is to utilize broken nugget in itself The characteristic of easy avalanche built on the sand, carry out part induction caving, i.e. the medium-length hole ultra-deep 3-5m in nugget both sides arrangement, artificial shape Into groove, accelerating top board natural caving.
(7) ore under adopting is attached in mine car using dirt loader.
The present invention's adopts lower ore deadweight rolling in entrucking tunnel, is loaded using dirt loader to rock tunnel 0.75m3In granby car, drawn using 3T trolley locomotives to skip shaft and unload ore deposit.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (10)

1. a kind of difficult mining blocks stoping method, it is characterised in that described method comprises the following steps:
(1) rock tunnel, and vertical run arrangement Chuan Mai tunnels are dug along run in nugget lower wall;
(2) long and medium hole drilling:Rock courtyard is drived in rock tunnel, region Jue Chuanmai tunnels is consolidated in country rock, discloses mineral ore After expand drilling chamber;
(3) arranged in chamber jewel hole, borehole using bunch holes;
(4) tunneling construction is carried out using smooth Surface Blasting Technology;
(5) tunnel and adit digging and supporting are carried out simultaneously, tunnel and chamber speedy drivage, quick supporting;
(6) form groove in nugget both sides and carry out induction caving;
(7) ore under adopting is attached in mine car using dirt loader.
2. a kind of difficult mining blocks stoping method according to claim 1, it is characterised in that rock tunnel is wide in step (1) 2.2m × high 2.4m, the wide 2.4m in Chuan Mai tunnels × high 2.6m.
A kind of 3. difficult mining blocks stoping method according to claim 1, it is characterised in that the drilling chamber in step (2) Cross-sectional area be not less than wide by 3.6 × high 3.2m2
A kind of 4. difficult mining blocks stoping method according to claim 1, it is characterised in that minimum burden in step (3) For 2.5m~3m, bottom hole pitch 2.8m~3m.
A kind of 5. difficult mining blocks stoping method according to claim 1, it is characterised in that the blasthole of step (4) borehole blasting Spacing is not more than 400mm, and blasthole is parallel to each other, and blasthole bottom hole is at grade.
6. a kind of difficult mining blocks stoping method according to claim 1, it is characterised in that step (4) borehole blasting is using modeling Expect the dual initiation net of detonator-non-electrical millisecond delay cap initiation system and primacord, explosion uses emulsion, manually Explosive charge method powder charge.
7. a kind of difficult mining blocks stoping method according to claim 1-6 any one, it is characterised in that in step (4) Ventilation process is used in blast area, is preferably divulged information using mechanical forced.
A kind of 8. difficult mining blocks stoping method according to claim 7, it is characterised in that described mechanical forced ventilation Return air is drained into for by Leads to new breeze blast area, installation air exhauster extracts waste air out in lower air port in the auxiliary fan ventilation blower of fresh wind port installation Well.
9. a kind of difficult mining blocks stoping method according to claim 1, it is characterised in that supporting is in lane in step (5) Gunite concrete is carried out while road and adit digging.
A kind of 10. difficult mining blocks stoping method according to claim 1, it is characterised in that the depth of groove in step (6) For 3~5m.
CN201710973924.3A 2017-10-18 2017-10-18 A kind of stoping method of difficult mining blocks Pending CN107687340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710973924.3A CN107687340A (en) 2017-10-18 2017-10-18 A kind of stoping method of difficult mining blocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710973924.3A CN107687340A (en) 2017-10-18 2017-10-18 A kind of stoping method of difficult mining blocks

Publications (1)

Publication Number Publication Date
CN107687340A true CN107687340A (en) 2018-02-13

Family

ID=61153852

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710973924.3A Pending CN107687340A (en) 2017-10-18 2017-10-18 A kind of stoping method of difficult mining blocks

Country Status (1)

Country Link
CN (1) CN107687340A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2198293C2 (en) * 2001-04-23 2003-02-10 Институт горного дела - научно-исследовательское учреждение СО РАН Method of ore deposits mining
CN1474032A (en) * 2003-08-08 2004-02-11 中南大学 Continuous mining method of stepped sectional extruding and ore caving followed by filling
CN1982649A (en) * 2005-12-14 2007-06-20 招金矿业股份有限公司大尹格庄金矿 Mining method
RU2334875C1 (en) * 2007-03-21 2008-09-27 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" Method of underground mining of steep field of firm mineral
CN101967973B (en) * 2009-07-28 2012-10-31 鞍钢集团矿业公司 Open stope-caving combined mining method
CN102808622A (en) * 2012-08-03 2012-12-05 西北矿冶研究院 Method for recycling ore pillars by middle-deep hole and deep hole united blasting technique
CN103089267A (en) * 2013-01-22 2013-05-08 鞍钢集团矿业公司 Thin-ore-body shallow hole shrinkage method without sill pillar
CN103452568A (en) * 2013-09-05 2013-12-18 鞍钢集团矿业公司 Horizontal transport haulageway for mid-deep and deep mining
CN104153780A (en) * 2014-07-28 2014-11-19 鞍钢集团矿业公司 Sublevel caving shrinkage continuous recovery process for thin ore body
CN105041317A (en) * 2015-07-03 2015-11-11 中国瑞林工程技术有限公司 Medium-length hole shrinkage stoping method
CN106121648A (en) * 2016-08-04 2016-11-16 西北矿冶研究院 A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2198293C2 (en) * 2001-04-23 2003-02-10 Институт горного дела - научно-исследовательское учреждение СО РАН Method of ore deposits mining
CN1474032A (en) * 2003-08-08 2004-02-11 中南大学 Continuous mining method of stepped sectional extruding and ore caving followed by filling
CN1982649A (en) * 2005-12-14 2007-06-20 招金矿业股份有限公司大尹格庄金矿 Mining method
RU2334875C1 (en) * 2007-03-21 2008-09-27 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" Method of underground mining of steep field of firm mineral
CN101967973B (en) * 2009-07-28 2012-10-31 鞍钢集团矿业公司 Open stope-caving combined mining method
CN102808622A (en) * 2012-08-03 2012-12-05 西北矿冶研究院 Method for recycling ore pillars by middle-deep hole and deep hole united blasting technique
CN103089267A (en) * 2013-01-22 2013-05-08 鞍钢集团矿业公司 Thin-ore-body shallow hole shrinkage method without sill pillar
CN103452568A (en) * 2013-09-05 2013-12-18 鞍钢集团矿业公司 Horizontal transport haulageway for mid-deep and deep mining
CN104153780A (en) * 2014-07-28 2014-11-19 鞍钢集团矿业公司 Sublevel caving shrinkage continuous recovery process for thin ore body
CN105041317A (en) * 2015-07-03 2015-11-11 中国瑞林工程技术有限公司 Medium-length hole shrinkage stoping method
CN106121648A (en) * 2016-08-04 2016-11-16 西北矿冶研究院 A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
袁宁: "阶段矿房法在大吉山矿区的成功应用", 《中国钨业》 *

Similar Documents

Publication Publication Date Title
CN103590831B (en) A kind of gentle dip is thin-the novel mining methods of middle thickness orebody
CN104806244B (en) Filling mining method for slant middle-thick ore body
CN105952450B (en) A kind of new method of the double stope collaboration exploitations in underground mine underground
CN108561135A (en) A kind of mechanization stoping method of the suitable unstable middle thickness orebody of low-angle dip country rock
CN104453901A (en) Sublevel open-stoping mining method with subsequent backfilling for long-hole caving in thin ore bodies
CN105041314A (en) Method for united mining of deep subsequent stoping chamber and layered stoping jamb
CN108661646A (en) A kind of false top house column type shrink afterwards filling mining method
CN106761912B (en) It is a kind of be suitable for unstable formation efficiently on to route slicing and filling mining methods
MX2012009756A (en) Underground mining.
CN106761745A (en) The outer sublevel open stope method of arteries and veins
CN108104817A (en) A kind of upper disk crushes the recovery method for tilting thin-middle thickness orebody
CN109653748A (en) A kind of thin mining methods with very thin ore body
CN108625855A (en) Safe and efficient mining methods under a kind of obturation
CN103557001A (en) Low-section-height drift-pillar-free shrinkage-stoping, subsequent-filling and mining method
CN101725351A (en) Filling stope pillar recovery mining method
CN109812268B (en) Panel mechanized upward horizontal layered filling top column directional throwing blasting mining method
CN106150504B (en) A kind of advanced quick-fried power in top of cutting transports ore deposit sublevel stoping
CN106593447A (en) Mining method for gently inclined medium-thickness ore body in underground mining
CN105370280B (en) A kind of double-deck thin jade ore deposit nondestructive blasting mining methods of underground low-angle dip
CN104389604A (en) Method for forming covering layer by stope caving method
CN108049870B (en) The induction caving mining methods of high-dipping middle thickness orebody of the upper disk containing unstable rock stratum
CN108590651B (en) A kind of method of more drilling chamber recycling ore pillars
CN104265294A (en) Coal pillar-free mining technology for blasting mining face of steeply dipping seam
CN107687340A (en) A kind of stoping method of difficult mining blocks
CN112647945A (en) Hard roof cutting method for protective layer mining

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180213