CN107559009A - Collapse the recovery method of area's high-grade ore body in a kind of deep - Google Patents
Collapse the recovery method of area's high-grade ore body in a kind of deep Download PDFInfo
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- CN107559009A CN107559009A CN201710938583.6A CN201710938583A CN107559009A CN 107559009 A CN107559009 A CN 107559009A CN 201710938583 A CN201710938583 A CN 201710938583A CN 107559009 A CN107559009 A CN 107559009A
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Abstract
Collapse the recovery method of area's high-grade ore body the invention discloses a kind of deep, it is characterised in that：Using three-dimensional laser cavity monitoring system to the area top Exhausted area prospecting that collapses, slip casting is carried out to subsidence area ore body using high-strength injection slurry, top dead zone is filled and conserved with compared with low-intensity and higher-strength casting resin, mining preparation work, cutting work are arranged in and collapsed outside area, using flat polycrystalline substance, fan shaped medium length hole is precisely arranged with reference to detection data in actual mining, using remote-controlled scraper ore removal, dead zone is filled after back production.Collapsed the present invention is especially suitable for deep high-grade the recovery of ore body, have the characteristics that back production efficiency high, job safety and high-grade the ore body rate of recovery that collapses are high.
Description
Technical field
Collapse the recovery method of ore body the present invention relates to a kind of underground, is applied to metal mine deep more particularly to one kind
Underground mining high-grade collapses the recovery method of ore body.
Background technology
With the national economic development, metallic mineral resources consumption steeply rises, and metal mine underground mining efficiency greatly carries
Rise, to single stope output demand more and more higher.Such as Fig. 1, stope structure parameter increase now, mining depth increase, exposed area
Not in time, ore body is in exploitation also by Structure of mine rock, concussion of blasting, stope structure parameter and mining sequence for increase and filling operation
Influenceed etc. factor, the adjacent nugget unstable phenomenon in deep-seated setting goaf shows, and forms area of collapsing.The orebody mining that collapses safety,
Technical conditions become extremely complex, turn into typical difficulty and adopt hidden danger region.Current most mines are collapsed the recovery of ore body to deep
There is no better method, typically close ore body region of collapsing, the later stage remakes recycling.For the low-grade ore body that collapses, closing
Collapse area, it is more suitable from the point of view of Technological Economy；And the high-grade ore body that collapses belongs to high value resource, have important
Recovery value, closing are not reclaimed, and are a kind of larger economic losses for bargh.
The content of the invention
The invention aims to solve deep high-grade present in prior art collapse ore body can not be safely, effectively
The technical problem of recovery, propose it is a kind of efficiently, safety and the high high-grade of the rate of recovery collapse ore body recovery method.
The present invention solves above-mentioned technical problem with following technical scheme：
Collapse the recovery method of area's high-grade ore body in a kind of deep, comprises the following steps：
（1）The area's upper space that collapses detects.By lower wall haulage drift of upper stage, three-dimensional laser cavity monitoring system is erected at
In upper stage discharging tunnel, using the Telescopic of detection system, the scanning to ore body area top dead zone of collapsing is realized, is detected
Go out to collapse area top dead zone spatial data, collapse area's surface location.With reference to the coefficient of volumetric expansion of ore, collapse ore body and sky are analyzed
Area's interface and the upper space volume in area of collapsing, calculate collapse area's volume and the ore body volume that do not collapse.
（2）Collapse area's slip casting and filling dead zone.In order to save cost recovery, with reference to detection analysis data, differentiation three of collapsing
Kind situation filling, filling pipeline is arranged by lower wall level haulageway of upper stage, discharging tunnel of upper stage, by under the upper stage
Stage disk haulage drift, discharging tunnel, the ratio of mud is used as 1 to the ore body of subsidence area first:0.8 grout material carries out slip casting, examines
The coefficient of volumetric expansion and grout material loss, grouting amount for considering ore are to collapse the 40% ~ 50% of ore body volume, form slip casting and collapse ore body；
Collapsed ore body top in slip casting, use filling cement-sand ratio as 1:4 casting resin forms high intensity obturation；In high intensity obturation
Top dead zone, cement-sand ratio is used as 1:8 casting resin carries out filling until knot top, forms cement-sand ratio 1:8 obturation, grout material
Need to conserve with obturation.
（3）Collapse ore body mining preparation work.Using collapse outside area, already present level haulageway, discharging tunnel, in lower wall
In level haulageway, discharging tunnel is tunneled；Collapsing outside area, ramp is driven up in lower wall level haulageway, tunneling
The drilling drift being connected with ramp；In drilling drift, ramp, the filling that driving is connected with ramp are driven up
Connecting taxiway；Filling borehole is tunneled between filling connecting taxiway and upper stage discharging tunnel；Disk collapses outside area on ore body, upper disk fortune
In defeated tunnel, ramp and drilling drift UNICOM are driven up.In order to reduce ore losses, using flat polycrystalline substance ore removal.
（4）Cut work.Closing in the lower wall ore body for collapsing region, slot raise is driven up in discharging tunnel, with
Slot raise is the scope of freedom and compensation space explosion, forms the cutting groove for closing on area of collapsing, cutting groove is as ore body recovery of collapsing
The scope of freedom and compensation space.
（5）Collapse ore body recovery operation.With reference to ore body and the dead zone interface of collapsing, laid in rock drilling gallery deep in sector
Hole, blasthole bottom are collapsed ore body and Filling mine-out area body interface certain distance away from slip casting.Drilled using drill jumbo, utilize powder charge
Platform is to fan shaped medium length hole powder charge, using cutting groove as the scope of freedom, using millisecond delay blasting between row, the artillery salvo of onepull two to three
Hole, gradation lateral caving.In order to ensure ore removal safety, using remote-controlled scraper load ore, remote-controlled scraper through discharging tunnel,
Lower wall level haulageway, the ore of haulage is unloaded into mine chute, the ore handling until high-grade of an avalanche collapses
Finish, carrying out next separate explosion.
（6）Collapse after area's recovery, according to adjacent ore body situation, transported using cemented filling material by lower wall of upper stage
Tunnel, discharging tunnel of upper stage, filling borehole, filling connecting taxiway bashing.
The protrusion technical characterstic of the present invention is：
（1）Dead zone is detected using three-dimensional laser cavity monitoring system, accurate perception collapses the spatial data in area, is follow-up
The safe and efficient development of work, there is provided accurate basic data；
（2）To area and the dead zone progress gradation filling of collapsing, cost recovery is saved, has ensured the stability for area's recovery of collapsing；
（3）Arrangement adopts accurate and cutting work in the ore body for closing on area of collapsing, and ensures recovery job safety；
（4）Using accurate perception collapse area spatial data lay fan shaped medium length hole, be beneficial to control filling bulk damage, be advantageous to
Reduce the stability of explosion damage top plate；
（5）Using flat polycrystalline substance, improve high-grade and collapse the ore body rate of recovery, with remote-controlled scraper ore removal, ensured ore deposit
Stone haulage job safety.
It is reasonable in design, construction safety using the region recovery method beneficial effect that collapses of above-mentioned technical proposal, ensures
Region operating condition is collapsed, achieves good economic benefit, is that one kind collapses region high-grade in metal mine underground mining
In ore recuperation, there is the recovery method of extensive practicality.
Brief description of the drawings
Fig. 1 is deep high-grade ore body stope layout drawing.
Fig. 2 is that deep high-grade stope collapses figure.
Fig. 3 collapses figure for filling and slip casting high-grade stope.
Fig. 4 is that deep high-grade collapses ore body recovery method front view.
Fig. 5 is that deep high-grade collapses ore body recovery method side view.
Fig. 6 is that deep high-grade collapses ore body recovery method polycrystalline substance top view.
In figure mark for：1- goafs, 2- nuggets to be recycled, 3- cement-sand ratios 1:8 obturation, 4- collapse ore body region,
5- does not collapse ore body part, and 6- collapses ore body and dead zone interface, the ore body that collapses of 7- slip castings, 8- high intensity obturations, 9- chisels
Rock gangway road, 10- fan shaped medium length holes, 11- lower wall level haulageways, the upper stage lower wall haulage drifts of 12-, 13- discharging tunnels,
The upper stage discharging tunnels of 14-, the upper disk haulage drifts of 15-, 16- upper stages upper disk haulage drift, 17- ramps, 18- cuttings day
Well, the high-grades of 19- avalanches collapse ore, 20- mine chutes, 21- filling connecting taxiways, 22- filling boreholes.
Embodiment
With reference to accompanying drawing of the present invention and traveling one is entered to the technical scheme in the embodiment of the present invention in conjunction with specific embodiments
Step description, described embodiment is only section Example of the present invention, rather than whole embodiments.
As shown in Figure 1 to Figure 3, certain lead-zinc deposit, the grade of ore is high, and back production depth is broken away from earth's surface 1000m, ore body structure
Broken, fault belt development, steadiness is poor, and country rock steadiness is good, lateral using large diameter, deep borehole in order to meet production task
Ore caving mining codes production ore.The structural parameters of deep high-grade nugget are：Nugget capwise arranges that length is the thickness of ore body
Degree is generally 45m, is highly 50m, width 6m, top-bottom pillar is not stayed in order to reduce loss, using remote-controlled scraper ore removal, ore removal
After, goaf 1 uses cement-sand ratio as 1:8 cemented filling material filling stope forms cement-sand ratio 1:8 obturation 3, in order to
Ensure STOPE STABILITY obturation need to conserve 30 days, then back production close on treat back production nugget 2.Such as Fig. 2, because mining blasting produces
Vibration, the open-assembly time of goaf 1 it is oversize, in time filling etc. factor influence, cause to close on and treat the stope piece of back production nugget 2
Help, collapsing forms ore body region 4 of collapsing.
Collapse the recovery method of area's high-grade ore body in a kind of deep, as shown in Figures 2 to 6, comprises the following steps：
（1）The area's upper space that collapses detects.By lower wall haulage drift of upper stage 12, three-dimensional laser cavity monitoring system is set up
In upper stage discharging tunnel 14, using the Telescopic of detection system, realize and the top dead zone of ore body region 4 of collapsing is swept
Retouch, detect the area top dead zone spatial data that collapses, collapse area's surface location.With reference to the coefficient of volumetric expansion of ore, analyze and collapse
Ore body and dead zone interface 6 and the m of upper space volume 10685 in area of collapsing3, calculate the m of area's volume 9560 that collapses3Do not collapse
Collapse the m of volume 6755 of ore body 53。
（2）Collapse area's slip casting and filling dead zone.In order to save cost recovery, with reference to detection analysis data, differentiation three of collapsing
The filling of kind of situation, filling pipeline is arranged by lower wall level haulageway of upper stage 12, discharging tunnel of upper stage 14, first to collapsing
The ore body for falling into area uses the ratio of mud as 1:0.8 grout material carries out slip casting, considers the coefficient of volumetric expansion and the grout material loss of ore, slip casting
Measure to collapse the 40% ~ 50% of ore body volume, form slip casting and collapse ore body 7；Collapsed the top of ore body 7 in slip casting, using filling sand-lime
Than for 1:4 casting resin forms high intensity obturation 8, is highly 4m；In the top dead zone of high intensity obturation 8, using cement-sand ratio
For 1:8 casting resin carries out filling until knot top, forms cement-sand ratio 1:8 obturation 3, grout material and obturation need to conserve.
（3）Collapse ore body mining preparation work.Using collapse outside area, already present lower wall level haulageway 11, under the upper stage
Disk haulage drift 12, discharging tunnel of upper stage 14, upper disk haulage drift 15, upper disk haulage drift 16 of upper stage.In lower stage disk
In haulage drift 11, discharging tunnel 13 is tunneled；Collapsing outside area, in lower wall level haulageway 11, driving up ramp 17,
After ramp 17 has tunneled 17m, the drilling drift 9 being connected with ramp 17 is tunneled；In drilling drift 9, drive up
Ramp 17, after ramp 17 has tunneled 10.5m, tunnel the filling connecting taxiway 21 being connected with ramp 17；Join in filling
A diameter of 0.25m vertical filling borehole 22 is tunneled between network road 21 and upper stage discharging tunnel 14；The area of collapsing of disk on ore body
Outside, in upper disk haulage drift 15, ramp 17 and the UNICOM of drilling drift 9 are driven up.In order to reduce ore losses, use is flat
Polycrystalline substance ore removal.
（4）Cut work.Closing in the lower wall ore body for collapsing region, slot raise is driven up in discharging tunnel 13
18, with slot raise 18 for the scope of freedom and compensation space explosion, the cutting groove for closing on area of collapsing is formed, cutting groove is as the ore deposit that collapses
The scope of freedom of body recovery and compensation space.
（5）Collapse ore body recovery operation.It is accurate in rock drilling gallery 9 to lay with reference to ore body and the dead zone interface 6 of collapsing
To with it is lower to fan shaped medium length hole 10, pitch of holes 2.2m, row's spacing be 2.0m.Collapse ore body 7 and sky of the blasthole bottom away from slip casting
Area obturation interface 0.5m.Drilled using drill jumbo, using chargeholder to the powder charge of fan shaped medium length hole 10, using cutting groove as certainly
By face, using millisecond delay blasting between row, the artillery salvo of onepull two to three hole, gradation lateral caving.In order to ensure ore removal safety,
The high-grade that avalanche is loaded using remote-controlled scraper is collapsed ore 19, and remote-controlled scraper transports through discharging tunnel 13, lower stage disk
Tunnel 11, the ore of haulage is unloaded into mine chute 20, until the high-grade of an avalanche collapses, the haulage of ore 19 finishes,
Carry out next separate explosion.
（6）Collapse area recovery after, according to adjacent ore body situation, using cement-sand ratio 1:8 cemented filling material, by upper
Stage lower wall haulage drift 12, discharging tunnel of upper stage 14, filling borehole 22, the filling bashing of connecting taxiway 21.
Claims (9)
- The recovery method of area's high-grade ore body 1. a kind of deep is collapsed, using three-dimensional laser cavity monitoring system to area top of collapsing Exhausted area prospecting, slip casting is carried out to subsidence area ore body using high-strength injection slurry, top dead zone is filled with compared with low-intensity and high intensity Material is filled and conserved, and mining preparation work, cutting work are arranged in and collapsed outside area, using flat polycrystalline substance, are combined in recovery operation Detection data precisely arranges fan shaped medium length hole blasting in groups, and using remote-controlled scraper ore removal, dead zone is filled after recovery.
- 2. the area top Exhausted area prospecting that collapses according to right 1, it is characterized in that utilizing three-dimensional laser cavity monitoring system, base The scanning to ore body area top dead zone of collapsing is realized in laser scanning, the area top dead zone spatial data that collapses is detected, collapses Area's surface location.
- 3. the subsidence area ore body slip casting according to right 1, it is characterized in that using the ratio of mud as 1:0.8 high-strength injection slurry Slip casting is carried out, grouting amount is to collapse the 40 ~ 50% of ore body volume, maintenance injecting cement paste 60 days.
- 4. the top dead zone according to right 1 is filled and conserved with compared with low-intensity and high intensity casting resin, it is characterized in that adopting It is 1 with cement-sand ratio:8 relatively low-intensity casting resin is filled and is 1 with cement-sand ratio:4 higher-strength casting resin is filled, Conserve grouting filling body 60 days.
- 5. according to right 1 mining preparation work arrangement, it is characterized in that using collapse outside area, already present stage transportation roadway Road, discharging tunnel, in lower wall level haulageway, tunnel discharging tunnel；Collapsing outside area, in lower wall level haulageway to Upper driving ramp, the drilling drift that driving is connected with ramp；In drilling drift, drive up ramp, driving with The filling connecting taxiway that ramp is connected；Filling borehole is tunneled between filling connecting taxiway and upper stage discharging tunnel；On ore body Disk collapses outside area, in upper disk haulage drift, drives up ramp and drilling drift UNICOM；In order to reduce ore losses, adopt With flat polycrystalline substance ore removal.
- 6. the cutting work arrangement according to right 1, its feature are being closed in the lower wall ore body for collapsing region, discharging tunnel Slot raise is inside driven up, using slot raise as the scope of freedom and compensation space explosion, the cutting groove for closing on area of collapsing is formed, cuts Cut the scope of freedom and compensation space of the groove as ore body recovery of collapsing.
- 7. according to the recovery operation described in right 1, it is characterized in that with reference to ore body and the dead zone interface of collapsing, in rock drilling gallery Lay fan shaped medium length hole, blasthole bottom is collapsed ore body and Filling mine-out area body interface certain distance away from slip casting；Using drill jumbo Drilling, it is once quick-fried using millisecond delay blasting between row using cutting groove as the scope of freedom using chargeholder to fan shaped medium length hole powder charge Broken two to three artillery salvo holes, gradation lateral caving；In order to ensure ore removal safety, ore is loaded using remote-controlled scraper, is remotely controlled scraper Machine unloads the ore of haulage into mine chute, until the high-grade of an avalanche through discharging tunnel, lower wall level haulageway The ore handling that collapses finishes, and is carrying out next separate explosion.
- 8. the filling dead zone according to right 1, it is characterized in that after area's recovery of collapsing, according to adjacent ore body situation, adopt It is mined out by lower wall haulage drift of upper stage, discharging tunnel of upper stage, filling borehole, filling connecting taxiway filling with cemented filling material Area.
- The recovery method of area's high-grade ore body 9. a kind of deep according to right 1 to right 8 is collapsed, what it was embodied It is characterised by：（1）The area's upper space that collapses detects：By lower wall haulage drift of upper stage 12, three-dimensional laser cavity monitoring system is set up In upper stage discharging tunnel 14, using the Telescopic of detection system, realize and the top dead zone of ore body region 4 of collapsing is swept Retouch, detect the area top dead zone spatial data that collapses, collapse area's surface location；With reference to the coefficient of volumetric expansion of ore, analyze and collapse Ore body and dead zone interface 6 and the upper space volume in area of collapsing, calculate the volume of collapse area's volume and the ore body 5 that do not collapse；（2）Collapse area's slip casting and filling dead zone：Arranged by lower wall level haulageway of upper stage 12, discharging tunnel of upper stage 14 Filling pipeline;In order to save cost recovery, with reference to detection analysis data, three kinds of situation fillings of differentiation of collapsing, first to subsidence area Ore body use the ratio of mud as 1:0.8 grout material carries out slip casting, and the coefficient of volumetric expansion and grout material loss, grouting amount for considering ore are Collapse the 40% ~ 50% of ore body volume, form slip casting and collapse ore body 7；Collapsed the top of ore body 7 in slip casting, use filling cement-sand ratio for 1:4 casting resin forms high intensity obturation 8, is highly 4m；In the top dead zone of high intensity obturation 8, cement-sand ratio is used as 1:8 Casting resin carry out filling until knot top, formed cement-sand ratio 1:8 obturation 3, grout material and obturation need to conserve；（3）Collapse ore body mining preparation work：Using collapse outside area, already present lower wall level haulageway 11, lower wall of upper stage fortune Defeated tunnel 12, discharging tunnel of upper stage 14, upper disk haulage drift 15, upper disk haulage drift 16 of upper stage；Transported in lower stage disk In tunnel 11, discharging tunnel 13 is tunneled；Collapsing outside area, in lower wall level haulageway 11, ramp 17 is being driven up, oblique After 17m has been tunneled in ramp 17, the drilling drift 9 being connected with ramp 17 is tunneled；In drilling drift 9, slope is driven up Road 17, after ramp 17 has tunneled 10.5m, tunnel the filling connecting taxiway 21 being connected with ramp 17；In filling connecting taxiway A diameter of 0.25m filling borehole 22 is tunneled between 21 and upper stage discharging tunnel 14；Disk collapses outside area on ore body, upper disk fortune In defeated tunnel 15, ramp 17 and the UNICOM of drilling drift 9 are driven up；In order to reduce ore losses, using flat polycrystalline substance Ore removal；（4）Cut work：Closing in the lower wall ore body for collapsing region, slot raise 18 is driven up in discharging tunnel 13, with Slot raise 18 is the scope of freedom and compensation space explosion, forms the cutting groove for closing on area of collapsing, and cutting groove returns as the ore body that collapses The scope of freedom of receipts and compensation space；（5）Collapse ore body recovery operation：With reference to collapse ore body and dead zone interface 6, in rock drilling gallery 9 it is accurate lay to It is lower to fan shaped medium length hole 10, pitch of holes 2.2m, row's spacing be 2.0m；Collapse ore body 7 of the blasthole bottom away from slip casting fills with dead zone Fill out body interface 0.5m；Drilled using drill jumbo, using chargeholder to fan shaped medium length hole powder charge, using cutting groove as the scope of freedom, Using millisecond delay blasting between row, the artillery salvo of onepull two to three hole, gradation lateral caving；In order to ensure ore removal safety, use The high-grade that remote-controlled scraper loads avalanche collapses ore 19, and remote-controlled scraper is through discharging tunnel 13, lower wall level haulageway 11, the ore of haulage is unloaded into mine chute 20, until the high-grade of an avalanche collapses, the haulage of ore 19 finishes, and is carrying out Next separate explosion；（6）Collapse area recovery after, according to adjacent ore body situation, using cement-sand ratio 1:8 cemented filling material, by the upper stage Lower wall haulage drift 12, discharging tunnel of upper stage 14, filling borehole 22, the filling bashing of connecting taxiway 21.
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| CN114017030A (en) * | 2021-11-03 | 2022-02-08 | 安徽铜冠（庐江）矿业有限公司 | Ascending continuous mining method for building ore removal structure in roof caving area of staged stope |
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| CN114017030A (en) * | 2021-11-03 | 2022-02-08 | 安徽铜冠（庐江）矿业有限公司 | Ascending continuous mining method for building ore removal structure in roof caving area of staged stope |
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