CN107559009B - 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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- CN107559009B CN107559009B CN201710938583.6A CN201710938583A CN107559009B CN 107559009 B CN107559009 B CN 107559009B CN 201710938583 A CN201710938583 A CN 201710938583A CN 107559009 B CN107559009 B CN 107559009B
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Abstract
It collapses the recovery method of area's high-grade ore body the invention discloses a kind of deep, it is characterized by: 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 is conserved with compared with low-intensity and higher-strength filling material, mining preparation work, cutting work are arranged in and collapse outside area, using flat bottom structure, detection data is combined precisely to arrange fan shaped medium length hole in actual mining, using remote-controlled scraper ore removal, dead zone is filled after back production.It collapses the recycling of ore body the present invention is especially suitable for deep high-grade, has the characteristics that high-efficient back production, operation safety and high-grade the ore body rate of recovery that collapses are high.
Description
Technical field
It collapses the recovery method of ore body the present invention relates to a kind of underground, is suitable for metal mine deep more particularly to one kind
Underground mining high-grade collapses the recovery method of ore body.
Background technique
With the national economic development, metallic mineral resources consumption is steeply risen, and metal mine underground mining efficiency greatly mentions
It rises, it is higher and higher to single stope output demand.Such as Fig. 1, stope structure parameter increases now, mining depth increases, exposed area
Increase with filling operation not in time, ore body is in exploitation also by Structure of mine rock, concussion of blasting, stope structure parameter and mining sequence
Etc. factors influence, the adjacent nugget unstable phenomenon in deep-seated setting goaf shows, and formation is collapsed area.The orebody mining that collapses safety,
Technical conditions become extremely complex, become typical difficulty and adopt hidden danger region.Majority mines collapse the recycling of ore body to deep at present
There is no better method, usually close ore body region of collapsing, the later period remakes recovery processing.For the low-grade ore body that collapses, closing
It collapses area, it is more appropriate from the point of view of Technological Economy；And the high-grade ore body that collapses belongs to high value resource, has important
Recovery value, closing are not recycled, and are a kind of biggish economic losses for bargh.
Summary of the invention
The purpose of the present invention is to solve deep high-grade existing in the prior art collapse ore body can not be safely, effectively
The technical issues of recycling, 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 solution:
Collapse the recovery method of area's high-grade ore body in a kind of deep, comprising the following steps:
(1) the area's upper space that collapses detection.By lower wall haulage drift of upper stage, by three-dimensional laser cavity monitoring system frame
It is located in stage discharging tunnel, using the Telescopic of detection system, realizes the scanning to ore body area top dead zone of collapsing,
Detect that area, dead zone, the top spatial data that collapses, collapse area's surface location.In conjunction with the coefficient of volumetric expansion of ore, the ore body that collapses is analyzed
With the upper space volume of dead zone interface and area of collapsing, collapse area's volume and the ore body volume that do not collapse are calculated.
(2) collapse area's slip casting and filling dead zone.In order to save cost recovery, in conjunction with detection analysis data, differentiation three of collapsing
Kind situation filling arranges filling pipeline by lower wall level haulageway of upper stage, discharging tunnel of upper stage, by under the upper stage
Stage disk haulage drift, discharging tunnel use the ratio of mud to carry out slip casting for 1:0.8 grout material, examine to the ore body of subsidence area first
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；
It collapses ore body top in slip casting, filling cement-sand ratio is used to form high-intensitive obturation for the filling material of 1:4；In high-intensitive obturation
Top dead zone uses cement-sand ratio to carry out filling until knot top, forms the obturation of cement-sand ratio 1:8, grout material for the filling material of 1:8
It needs to conserve with obturation.
(3) it collapses 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；It is 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 connection are driven up.In order to reduce ore losses, using flat bottom structure ore removal.
(4) work is cut.It is 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 recycling of collapsing
The scope of freedom and compensation space.
(5) collapse ore body recovery operation.In conjunction with 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.It is drilled using drill jumbo, utilizes 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, two to three artillery salvo of onepull
Hole, gradation lateral caving.In order to guarantee ore removal safety, using remote-controlled scraper load ore, remote-controlled scraper through discharging tunnel,
Lower wall level haulageway unloads the ore of haulage into mine chute, the ore handling until high-grade of an avalanche collapses
It finishes, is carrying out next separate explosion.
(6) it collapses after area's recycling, according to adjacent ore body situation, is transported using cemented filling material by lower wall of upper stage
Tunnel, discharging tunnel of upper stage, filling borehole, filling connecting taxiway bashing.
Protrusion technical characterstic of the invention is:
(1) dead zone is detected using three-dimensional laser cavity monitoring system, accurate perception collapses the spatial data in area, is
The safe and efficient development of follow-up work, provides accurate basic data；
(2) to area and the dead zone progress gradation filling of collapsing, cost recovery has been saved, has ensured the stabilization for area's recycling of collapsing
Property；
(3) arrangement adopts quasi- and cutting work in the ore body for closing on area of collapsing, and ensures recycling operation safety；
(4) using accurate perception collapse area spatial data lay fan shaped medium length hole, be beneficial to control filling bulk damage, have
Conducive to the stability for reducing explosion damage top plate；
(5) flat bottom structure is used, high-grade is improved and collapses the ore body rate of recovery, with remote-controlled scraper ore removal, is ensured
Ore handling operation safety.
The region recovery method beneficial effect that collapses by adopting the above technical scheme is that design is reasonable, and construction safety ensures
Region operating condition is collapsed, good economic benefit is achieved, is that one kind in metal mine underground mining collapses region high-grade
In ore recuperation, the recovery method with extensive practicability.
Detailed description of the invention
Fig. 1 is deep high-grade ore body stope layout drawing.
Fig. 2 is that high-grade stope in deep collapses figure.
Fig. 3 is that filling and slip casting high-grade stope collapse figure.
Fig. 4 is that deep high-grade collapses ore body recovery method main 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 bottom structure top view.
In the figure, it is marked as the goaf 1-, 2- nugget to be recycled, the obturation of 3- cement-sand ratio 1:8,4- collapses 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 casting, 8- high intensity obturation, 9- chisel
Rock gangway road, 10- fan shaped medium length hole, 11- lower wall level haulageway, the upper stage lower wall haulage drift of 12-, 13- discharging tunnel,
The upper stage discharging tunnel of 14-, the upper disk haulage drift of 15-, 16- upper stage upper disk haulage drift, 17- ramp, 18- cut day
Well, the high-grade of 19- avalanche collapse ore, 20- mine chute, and 21- fills connecting taxiway, 22- filling borehole.
Specific embodiment
Technical solution in the embodiment of the present invention is carried out into one below with reference to attached drawing of the present invention and in conjunction with specific embodiments
Step description, described embodiment are only section Example of the present invention, instead of all the embodiments.
As shown in Figure 1 to Figure 3, certain lead-zinc deposit, the grade of ore is high, and for back production depth away from earth's surface 1000m, ore body structure is broken
Broken, fault belt development, stability is poor, and country rock stability 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 as follows: nugget capwise arrangement, length are 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 to fill the obturation 3 that stope forms cement-sand ratio 1:8 for the cemented filling material of 1:8, in order to
Guarantee STOPE STABILITY obturation need to conserve 30 days, then back production close on to back production nugget 2.Such as Fig. 2, since mining blasting generates
Vibration, 1 exposure duration of goaf it is too long, not in time filling etc. factors influence, cause to close on to 2 stope piece of back production nugget
It helps, 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, comprising the following steps:
(1) the area's upper space that collapses detection.By lower wall haulage drift of upper stage 12, by three-dimensional laser cavity monitoring system
It is erected in stage discharging tunnel 14, using the Telescopic of detection system, realizes to 4 top dead zone of ore body region of collapsing
Scanning, detects that area, dead zone, the top spatial data that collapses, collapse area's surface location.In conjunction with the coefficient of volumetric expansion of ore, analyzes and collapse
Collapse 10685 m of upper space volume of ore body and dead zone interface 6 and area of collapsing3, calculate 9560 m of area's volume that collapses3Not
Collapse 6755 m of volume of ore body 53。
(2) collapse area's slip casting and filling dead zone.In order to save cost recovery, in conjunction with detection analysis data, differentiation three of collapsing
The filling of kind of situation arranges filling pipeline 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 to carry out slip casting for 1:0.8 grout material, considers the coefficient of volumetric expansion and the grout material loss of ore, slip casting
Amount forms slip casting and collapses ore body 7 to collapse the 40% ~ 50% of ore body volume；It collapses 7 top of ore body in slip casting, using filling sand-lime
High-intensitive obturation 8 is formed than the filling material for 1:4, is highly 4m；In high-intensitive 8 top dead zone of obturation, using cement-sand ratio
Filling material for 1:8 carries out filling until knot top, forms the obturation 3 of cement-sand ratio 1:8, grout material and obturation need to conserve.
(3) it collapses 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；It is collapsing outside area, in lower wall level haulageway 11, is 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 tunnels the filling connecting taxiway 21 being connected with ramp 17 after ramp 17 has tunneled 10.5m；Join in filling
The vertical filling borehole 22 that diameter is 0.25m 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 9 connection of drilling drift are driven up.In order to reduce ore losses, use is flat
Bottom structure ore removal.
(4) work is cut.It is closing in the lower wall ore body for collapsing region, is driving up slot raise 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 mine that collapses
The scope of freedom of body recycling and compensation space.
(5) collapse ore body recovery operation.In conjunction with ore body and the dead zone interface 6 of collapsing, accurately laid in rock drilling gallery 9
To, to fan shaped medium length hole 10, pitch of holes 2.2m, row's spacing is 2.0m with lower.Collapse ore body 7 and sky of the blasthole bottom away from slip casting
Area obturation interface 0.5m.It is drilled using drill jumbo, is certainly with cutting groove using chargeholder to 10 powder charge of fan shaped medium length hole
By face, using millisecond delay blasting between row, two to three artillery salvo hole of onepull, gradation lateral caving.In order to guarantee ore removal safety,
It is collapsed ore 19 using the high-grade that remote-controlled scraper loads avalanche, remote-controlled scraper is transported through discharging tunnel 13, lower stage disk
Tunnel 11 unloads the ore of haulage into mine chute 20, until the high-grade of an avalanche collapses, 19 haulage of ore is finished,
Carry out next separate explosion.
(6) collapse area recycling after, according to adjacent ore body situation, using the cemented filling material of cement-sand ratio 1:8, by upper
Stage lower wall haulage drift 12, discharging tunnel of upper stage 14, filling borehole 22, filling 21 bashing of connecting taxiway.
Claims (3)
- 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 carries out slip casting to subsidence area ore body using high-strength injection slurry, and top dead zone is with compared with low-intensity and high-intensitive filling Material is filled and is conserved, and mining preparation work, cutting work are arranged in and collapse outside area, using flat bottom structure, is combined in recovery operation Detection data precisely arranges fan shaped medium length hole blasting in groups, using remote-controlled scraper ore removal, fills dead zone after recycling；It is characterized in that, its specific implementation step is as follows:(1) the area's upper space that collapses detection: 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, detection are realized Collapse out area, dead zone, top spatial data, collapse area's surface location；In conjunction with the coefficient of volumetric expansion of ore, collapse ore body and sky are analyzed The upper space volume of area's interface and area of collapsing, calculates the volume of collapse area's volume and the ore body that do not collapse；(2) collapse area's slip casting and filling dead zone: by lower wall level haulageway of upper stage, discharging tunnel of upper stage arrangement filling Pipeline;In order to save cost recovery, in conjunction with detection analysis data, collapse three kinds of situation fillings of differentiation, the first mine to subsidence area Body uses the ratio of mud to carry out slip casting for 1:0.8 grout material, considers the coefficient of volumetric expansion and the grout material loss of ore, grouting amount is to collapse The 40% ~ 50% of ore body volume forms slip casting and collapses ore body；It collapses ore body top in slip casting, uses filling cement-sand ratio for 1:4's Filling material forms high-intensitive obturation, is highly 4m；In high-intensitive obturation top dead zone, use cement-sand ratio for the filling of 1:8 Material carries out filling until knot top, forms the obturation of cement-sand ratio 1:8, grout material and obturation need to conserve；(3) collapse ore body mining preparation work: using collapse outside area, already present lower wall level haulageway, lower wall of upper stage transport Tunnel, discharging tunnel of upper stage, upper disk haulage drift, upper disk haulage drift of upper stage；In lower wall level haulageway, driving Discharging tunnel；It is collapsing outside area, in lower wall level haulageway, is driving up ramp, after incline boring 17m, pick Into the drilling drift being connected with ramp；In drilling drift, ramp is driven up, after incline boring 10.5m, The filling connecting taxiway that driving is connected with ramp；Driving diameter is 0.25m between filling connecting taxiway and upper stage discharging tunnel Filling borehole；Disk collapses outside area on ore body, in upper disk haulage drift, drives up ramp and drilling drift connection； In order to reduce ore losses, using flat bottom structure ore removal；(4) it cuts work: closing in the lower wall ore body for collapsing region, slot raise is driven up in discharging tunnel, with cutting Courtyard is the scope of freedom and compensation space explosion, is formed and closes on the cutting groove in area of collapsing, cutting groove as ore body recycling of collapsing oneself By face and compensation space；(5) collapse ore body recovery operation: in conjunction with ore body and the dead zone interface of collapsing, accurately laying in rock drilling gallery to under To fan shaped medium length hole, pitch of holes 2.2m, row's spacing is 2.0m；Collapse ore body and Filling mine-out area body friendship of the blasthole bottom away from slip casting Interface 0.5m；It is drilled using drill jumbo, using chargeholder to fan shaped medium length hole powder charge, using cutting groove as the scope of freedom, using row Between millisecond delay blasting, two to three artillery salvo hole of onepull, gradation lateral caving；In order to guarantee ore removal safety, shoveled using remote control The high-grade that fortune machine loads avalanche collapses ore, and remote-controlled scraper is through discharging tunnel, lower wall level haulageway, by the mine of haulage Stone is unloaded into mine chute, until the high-grade of an avalanche collapses, ore handling is finished, and is carrying out next separate explosion；(6) collapse area recycling after, according to adjacent ore body situation, using the cemented filling material of cement-sand ratio 1:8, by the upper stage Lower wall haulage drift, discharging tunnel of upper stage, filling borehole, filling connecting taxiway bashing.
- The recovery method of area's high-grade ore body 2. deep according to claim 1 is collapsed, the ore body it is characterized in that: slip casting is collapsed Curing time is 60 days.
- The recovery method of area's high-grade ore body 3. deep according to claim 1 is collapsed, it is characterized in that: when obturation conserves Between be 60 days.
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| CN114017030B (en) * | 2021-11-03 | 2023-06-30 | 安徽铜冠（庐江）矿业有限公司 | Upward continuous mining method for re-constructing ore-drawing structure in roof caving area of stage stope |
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