CN104989404B - It is pseudo- in Steeply dipping narrow deposits arteries and veins to tilt ore deposit Medium-long hole mining method - Google Patents
It is pseudo- in Steeply dipping narrow deposits arteries and veins to tilt ore deposit Medium-long hole mining method Download PDFInfo
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Abstract
It tilts ore deposit Medium-long hole mining method the invention discloses pseudo- in a kind of Steeply dipping narrow deposits arteries and veins, stope is arranged along orebody trend, by ore body inclined direction multiple openings and segmentation, from ore body lower wall arrangement stage haulage way along the pulse；It is tunneled from stage haulage way position to ore body in ore removal crosscut to ore body；Along the pulse level undercut gallery and slant height it is parallel driving rock drilling mine locating go up a hill；Mine chute is arranged against haulage way one side；Back production stops moving ahead since stope one side when the gallery that undercuts forms and prospects uphill position to first rock drilling, switchs to driving rock drilling mine locating and goes up a hill；Medium-length hole drilling machine is gradually gone from horizontal go up a hill to rock drilling mine locating that undercut, and hits the upward borehole of deep hole and explosion, and ore is from bottom ore crosscut ore removal；After first rock drilling mine locating is gone up a hill and exploited to certain position, continue to undercut gallery and reach Article 2 rock drilling mine locating uphill position, Longhole Mining is carried out, until stope mining finishes.Production efficiency of the present invention is high, production capacity is big, operational security is good.
Description
Technical field
The present invention relates to a kind of mining methods, tilt ore deposit medium-length hole more particularly to pseudo- in a kind of Steeply dipping narrow deposits arteries and veins
Mining codes.
Background technology
Steeply dipping narrow deposits are common in the mineral deposits such as gold, tungsten and tin, according to statistics, there are about 1/3rd coloured, rare and
Precious metal ore comes from such mineral deposit.At present, Steeply dipping narrow deposits often use overhand cut and fill stoping and shallow hole shrinkage method
Exploitation, due to using aperture rock drilling equipment, it is few once to fall ore deposit amount, and not only production capacity is low for Steeply dipping narrow deposits exploitation, Er Qiegong
People's labor intensity is big, operating cost height etc..According to the experience of domestic and international mining, to realize that the safety of steep narrow veins is high
The economic exploitation is imitated, effective way is exactly to improve mechanization degree, and largely improves blasting hole using large-scale winning equipment
Length is with once falling ore deposit amount.In view of this, during Longhole Mining equipment is exploited for Steeply dipping narrow deposits, i.e., using routine
On to segmentation Medium-long hole mining method, although the high-efficient homework of Steeply dipping narrow deposits can be realized, improve production capacity, there is
Adopt that quasi- quantities is big, need to tunnel slot raise forms the explosion scope of freedom and compensation space, stope domestic demand design ramp or driving
The artificial haulage rock drilling equipment of courtyard, labor strength are big, narrow vein medium-length hole blasting clamping action is big, explosive consumption is big etc.
Problem.Exploitation for Steeply dipping narrow deposits, due to being influenced by above-mentioned factor, oper cylinler medium-length hole narrow vein mining is always very
It is few to carry out.
It is investigated that readding, patent document CN 102635356A are related to a kind of more explosion scope of freedom medium-length holes of steep narrow veins and adopt
Ore deposit method although the method uses more explosion scope of freedoms, overcomes the explosion clamping action of narrow vein, this method, which equally exists, to be needed to dig
Cutting groove is formed into slot raise, driving ramp is also needed in stope or tunnels people's row equipment courtyard haulage rock drilling equipment,
The deficiencies of labor strength is big.Therefore, invention one kind is by arranging that the tilted tunnel of arteries and veins and medium-length hole blasting are combined progress
The recovery method of Steeply dipping narrow deposits has filled up the blank of the safe and efficient the economic exploitation of party's class ore body, it is quick-fried to solve medium-length hole
Break the problem in narrow vein mining.
The content of the invention
The technical problems to be solved by the invention are when separating for the exploration of lean ore body and being exploited using conventional mining method
Existing deficiency, propose one kind can prospecting in mining, rock drilling apparatus of middle deep hole migration is convenient, Steeply dipping narrow deposits medium-length hole is overcome to open
It adopts clamping action, form that cutting groove, stoping safety are high, adopt and cut that quantities is small, back production is efficient, production energy without slot raise
It is pseudo- in the big Steeply dipping narrow deposits arteries and veins of power to tilt ore deposit Medium-long hole mining method.
In order to solve the above technical problem, the present invention provides Steeply dipping narrow deposits arteries and veins in pseudo- tilt ore deposit Longhole Mining
Method arranges stope along orebody trend, by ore body inclined direction multiple openings and segmentation, hangs down in ore body and divides the stage on height；From ore deposit
4~8m of body lower wall arrangement stage haulage ways along the pulse；Along stage haulage way position ore removal crosscut is tunneled to ore body every 6~8m
To ore body；Along the pulse level sets the gallery that undercuts, and every 10~12m, gradually parallel driving rock drilling mine locating is gone up a hill by slant height, in rank
Section top is communicated with filling vent level；Filling vent level is communicated with upper stage haulage way；Mine chute abuts the upper stage
Haulage way one side is arranged；Back production stops since stope one side when the gallery that undercuts forms and prospects uphill position to first rock drilling
It only moves ahead, switchs to driving rock drilling mine locating and go up a hill；First rock drilling mine locating is gone up a hill in stope to be formed after start to dig up mine；Medium-length hole drilling machine
It goes up a hill to rock drilling mine locating from the gallery that undercuts and gradually goes, vertical ore body Drilling upward horizon medium-length hole and explosion collapse lower ore from bottom
Scraper ore removal is used in ore removal crosscut；After first rock drilling mine locating is gone up a hill and exploited to 5 meters~10 meters height, and start driving and undercut
Gallery simultaneously reaches Article 2 rock drilling mine locating uphill position, after formation rock drilling mine locating is gone up a hill, carries out medium-length hole with same method and adopts
Ore deposit, until stope mining finishes；Ore is shoveled out by scraper from ore removal crosscut, is sent into drop shaft near stope；Stope side
Exploitation, side ore removal.
Stope leaves fore-set, to reduce secondary poor damage, depending on ore-rock stability, appropriate adjusting stage height；Controlroof is sudden and violent
Reveal the time, prevent balkstone inbreak, accelerate explosion and ore removal speed；To ensure that operation is continuous, suitably to ore deposit section built on the sand
Drilling drift carries out supporting.
Stope uses filling method to handle goaf after exploiting.
It is described to be in ore body division stage on height of hanging down：High 40~the 60m in stage casing is segmented high 10~12m, and pillars of a house width is according to ore deposit
Rock stability determines.
Mine chute diameter of phi 1.8m~Φ 2.2m and against the mineral building cloth of haulage way of upper stage one side 1~2
Put 1.
The vertical ore body Drilling upward horizon medium-length hole and explosion refers to：Hit the upward borehole of deep hole, aperture 70~
90mm, hole depth since the gallery that undercuts 1m to rock drilling mine locating go up a hill terminate 14m differ, blasthole array pitch 1.8m~2.2m, pitch of holes
1.8m~2.2m, common rocks explosive and explosion, during explosion, three artillery salvo eye once detonations or five artillery salvo eye once detonations；Two-phase
Detonate 5~20m in advance between adjacent rock drilling lane.
Tilt ore deposit Medium-long hole mining method, its advantage using pseudo- in the Steeply dipping narrow deposits arteries and veins of above-mentioned technical proposal
It is：
1. adopt small, simple production process of cutting quantities
By stage arrangement nugget exploitation, segmentation is divided from inclined direction, is gone up a hill using the tunnel that undercuts, slant drilling mine locating
And its sequencing of driving, it can both prospect and control the border of ore body, reduce the dilution and loss during back production；It can take again
Disappear rock drilling equipment haulage courtyard or ramp.In addition, it goes up a hill the blasthole that gradually increases using from tunnel to the rock drilling mine locating that undercuts
Depth eliminates the required slot raise kerve technique of medium-length hole blasting, saves and largely adopt quasi- engineering, stope adopts quasi- cutter
Journey is few, simple production process.
2. equipment haulage is convenient, labor strength is small
During thin orebody mining, quasi- quantities is adopted to reduce, courtyard is often tunneled in ore body sets to transport long and medium hole drilling
It is standby, but because rock drilling apparatus of middle deep hole is heavy, haulage is especially inconvenient, and labor strength is big, has severely impacted lean ore body
The use of high efficiency method, for this purpose, design is gone up a hill using rock drilling mine locating in the arteries and veins being in tilted layout, worker is in tunnel or the rock drilling spy of undercuting
Ore deposit directly moves rock drilling equipment in going up a hill, thus haulage is convenient, and labor intensity is smaller.
3. clamping action is small, boulder yield is low
Stope explosion is carried out using vertically arranged medium-length hole borehole in going up a hill in rock drilling mine locating, and by avalanche nugget
Gravitative Loads overcome clamping action during thin orebody mining, reduce oversized fragment rate and reduce explosive consumption.
4. operational security is high, production capacity is big
Used drill and blast is undercuting tunnel and rock drilling mine locating is gone up a hill interior progress in stope, collapses lower ore from level haulage
It is shoveled out in horizontal ore removal crosscut, all personnel's equipment does not enter goaf, and operational security is good；It is set using long and medium hole drilling
The mechanizations trackless equipment such as standby and scraper, and perforating, blow out, ore removal parallel operations, production is not interfere with each other, production capacity of mining field
Greatly.
5. prospecting in mining, the poor damage of resource is few
It is gone up a hill using rock drilling mine locating, Bian Caibian is visited, stringent to control the in vivo ore-rock border of lean ore, adjusts the blasthole position of explosion
It puts and direction, controls the dilution and loss of stope ore.
Description of the drawings
Fig. 1 is mining methods structure diagram of the present invention.
Fig. 2 is II-II sectional view of Fig. 1.
Fig. 3 is III-III sectional view of Fig. 1.
In figure：1- fills vent level, 2- fore-sets, and 3- rock drilling mine locating is gone up a hill, 4- ore removals crosscut, and the upper stage transports of 5- are flat
Lane, 6- mine chutes, 7- next stage transportation roadways, 8- undercut gallery.
Specific embodiment
The present invention is illustrated below in conjunction with the accompanying drawings.
It is pseudo- in Steeply dipping narrow deposits arteries and veins provided by the invention to tilt ore deposit Medium-long hole mining method, referring to Fig. 1, Fig. 2 and Fig. 3,
It is as follows：
1) stope is arranged along orebody trend, by ore body inclined direction multiple openings and segmentation, the high 46m in stage casing, segmentation height
10m, pillars of a house width are determined according to ore and rock stability；The arrangement stage haulage way 7 along the pulse at ore body lower wall 6m；It is flat along stage transport
Lane 7 is every in 8m driving ore removals crosscut 4 to ore body；Along the pulse level sets the gallery 8 that undercuts, and by slant height every 10m gradually parallel picks
3 are gone up a hill into rock drilling mine locating, are communicated at the top of the stage with filling vent level 1；For convenience of stope ventilation, filling vent level 1 with
Upper stage haulage way 5 communicates；Mine chute 6 arranges 1 against the mineral building of 5 one side of haulage way of upper stage 2, mine chute 6
Diameter of phi 2m.
2) back production is since stope one side, before stopping when the tunnel 8 that undercuts is tunneled and goes up a hill 3 position to first rock drilling mine locating
Row switchs to tunnel rock drilling mine locating and goes up a hill 3；First rock drilling mine locating is gone up a hill in stope to be formed after start to dig up mine；Medium-length hole drilling machine from
The gallery 8 that undercuts is gone up a hill to rock drilling mine locating gradually goes in 3, vertical ore body Drilling upward horizon medium-length hole；Medium-length hole aperture 70mm, hole depth
Go up a hill 10m etc., blasthole array pitch 2m, pitch of holes 2m from 1m near the gallery 8 that undercuts to rock drilling mine locating；During explosion, three artillery salvo eyes one
Secondary detonation；After first rock drilling mine locating goes up a hill blasting excavation to 5 meters~10 meters of height, and start to tunnel the tunnel that undercuts, until the
Two rock drilling mine locating uphill positions, after formation rock drilling mine locating is gone up a hill, are exploited using above-mentioned same method and technique；Two adjacent rock drilling
It detonates in advance between tunnel five artillery salvo holes.Detonate 5~20m in advance between two adjacent rock drilling lanes.
3) tight-face blasting is reformed certainly using ore to overcome the clamping action in thin orebody mining；Ore under quick-fried passes through
Scraper is shoveled out from ore removal crosscut, is transported in mine chute 6 nearby；Stope inner edge is exploited, scraper side ore removal.
4) to ensure job safety, stope leaves fore-set 2, the high 3m of fore-set；To reduce secondary poor damage, depending on ore-rock stability,
It can appropriate adjusting stage height；Controlroof exposure duration prevents balkstone inbreak, can accelerate explosion and ore removal speed；For
Ensure that operation is continuous, can supporting suitably be carried out to the drilling drift of ore deposit section built on the sand.
Referring to Fig. 1, Fig. 2 and Fig. 3, using adopting quasi- engineering driving sequencing and the special structure type of stope during back production,
The facility passage of stoping operation compensation space and equipment conveying is formed, cutting slot without draw cut forms compensating space in blasting and equipment fortune
It removes conveniently；It is gone up a hill and its blasthole form vertical with tendency using the rock drilling mine locating of inclination arrangement, two row or multi-row borehole is once
On the one hand explosion plays control ore limits and mine locating, on the other hand, by ore from tight-face blasting is reformed, overcome thin
Clamping action in orebody mining improves demolition effect, reduces boulder yield, reduces explosive consumption.The present invention has exploration knot
Close, without Special Blasting kerve engineering, equipment migration is convenient, thin orebody mining clamping action is small, oversized fragment rate is low, production effect
The distinguishing features such as rate is high, production capacity is big, operational security is good.
Claims (6)
1. pseudo- in a kind of Steeply dipping narrow deposits arteries and veins tilt ore deposit Medium-long hole mining method, it is characterised in that：It is adopted along orebody trend arrangement
, by ore body inclined direction multiple openings and segmentation, hang down in ore body and divide the stage on height；It is arranged along the pulse from 4~8m of ore body lower wall
Stage haulage way；It is tunneled along stage haulage way position every 6~8m to ore body in ore removal crosscut to ore body；Along the pulse level is set
Undercut gallery, and goes up a hill by slant height every the gradual parallel driving rock drilling mine locatings of 10~12m, with filling vent level at the top of the stage
It communicates；Filling vent level is communicated with upper stage haulage way；Mine chute is arranged against haulage way of upper stage one side；Back production
Since stope one side, stop moving ahead when the gallery that undercuts forms and prospects uphill position to first rock drilling, switch to tunnel rock drilling spy
Ore deposit is gone up a hill；First rock drilling mine locating is gone up a hill in stope to be formed after start to dig up mine；Medium-length hole drilling machine is prospected from gallery to the rock drilling that undercuts
It goes up a hill and gradually goes, vertical ore body Drilling upward horizon medium-length hole and explosion are collapsed lower ore and gone out from bottom ore crosscut with scraper
Ore deposit；Exploitation is gone up a hill to after 5 meters~10 meters height after first rock drilling mine locating, and starts driving and undercut gallery and to reach Article 2 rock drilling
Mine locating uphill position after formation rock drilling mine locating is gone up a hill, carries out Longhole Mining, until stope mining is finished with same method；
Ore is shoveled out by scraper from ore removal crosscut, is sent into drop shaft near stope；Stope side is exploited, side ore removal.
2. pseudo- in Steeply dipping narrow deposits arteries and veins according to claim 1 tilt ore deposit Medium-long hole mining method, it is characterised in that：It adopts
Fore-set is left in field, to reduce secondary poor damage, depending on ore-rock stability, appropriate adjusting stage height；It controlroof exposure duration, prevents
Explosion and ore removal speed are accelerated in balkstone inbreak；To ensure that operation is continuous, suitably the drilling drift of ore deposit section built on the sand is carried out
Supporting.
3. pseudo- in Steeply dipping narrow deposits arteries and veins according to claim 1 or 2 tilt ore deposit Medium-long hole mining method, feature exists
In：Stope uses filling method to handle goaf after exploiting.
4. pseudo- in Steeply dipping narrow deposits arteries and veins according to claim 1 or 2 tilt ore deposit Medium-long hole mining method, feature exists
In：It is described to be in ore body division stage on height of hanging down：High 40~the 60m in stage casing, is segmented high 10~12m, and pillars of a house width is steady according to ore-rock
It is qualitative to determine.
5. pseudo- in Steeply dipping narrow deposits arteries and veins according to claim 1 or 2 tilt ore deposit Medium-long hole mining method, feature exists
In：Mine chute diameter of phi 1.8m~Φ 2.2m and arrange 1 against the mineral building of haulage way of upper stage one side 1~2.
6. pseudo- in Steeply dipping narrow deposits arteries and veins according to claim 1 or 2 tilt ore deposit Medium-long hole mining method, feature exists
In：The vertical ore body Drilling upward horizon medium-length hole and explosion refers to：Hit the upward borehole of deep hole, 70~90mm of aperture,
Hole depth since the gallery that undercuts 1m to rock drilling mine locating go up a hill terminate 14m differ, blasthole array pitch 1.8m~2.2m, pitch of holes 1.8m~
2.2m, common rocks explosive and explosion, during explosion, three artillery salvo eye once detonations or five artillery salvo eye once detonations；Two adjacent rock drilling
Detonate 5~20m in advance between lane.
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