CN107654232A - The moat ditch collection ore deposit mining methods of inclined orebody - Google Patents
The moat ditch collection ore deposit mining methods of inclined orebody Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
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Abstract
The invention discloses a kind of moat ditch collection ore deposit mining methods of inclined orebody, the dead zone formed after mining sets moat ditch to construct area；The moat ditch that moat ditch constructs area is constructed, and is specially：The upper disk surface in area and the rotation angle position of base surface are constructed in moat ditch, is constructed for guiding broken ore to move downward and/or protect the moat ditch of ore body upper disk surface domatic；Moat ditch is domatic when constructing in the reserved collection drive of base surface, moat ditch is formed by domatic, the reserved collection drive of the moat ditch constructed, the domatic three of ore body lower wall, for the broken ore of moat ditch top back production to be gathered in into collection drive；Back production moat ditch top ore body, on collection drive and/or collection drive side carries out ore removal.The method is advantageous to improve ore recovery ratio, ore removal efficiency, production capacity, back production security and overall economic efficiency.Thin thick orebody mining to more than inclined moderately stable, and moat ditch formula ore removal polycrystalline substance are constructed.
Description
Technical field
The present invention relates to mining technical field, especially, is related to adopting for a kind of inclined orebody moat ditch retaining wall and ore removal
Ore deposit method.
Background technology
Ore body most of be inclined orebody, but when the slanting angle of ore body is small, first, armor rock and slicing and filling body folder on ore body
Broken ore between angle, due to the limitation in space, recovery difficult is very big, causes greatly to adopt lower loss, such case is general
Improved with the reduction of angle.Second, the exposure span of disk is big on ore body, and upper armor rock inbreak causes ore dilution, back production peace
Full property cannot ensure, carry out supporting using anchor pole, anchor cable etc. more, support engineering amount is big, and efficiency is low.3rd, after ore body avalanche,
Due to blast action, spew over is on whole filling bed, and high-grade fine ore cleaning difficulty is big, and its loss causes ore dilution；
Ore collection efficiency is extremely low, and in stope direct cost, the cost of stope haulage accounts for 10%~25%, even more greatly, individually
Mine reaches 50%, is only second to ore deposit cost, cost is higher when efficiency is low.4th, the above is adopted to exemplified by horizontal cut and fill stoping
With the plant equipment ore removal such as scraper, in order to meet the plant equipment service requirement such as scraper, slicing and filling bottom is using low strong
The obturation filling of degree, its surface carry out top dressing filling using the filling slurry of high intensity again, and part mine even uses coagulation
Soil carries out top dressing, and the filling cost of top dressing is high.5th, polycrystalline substance ore deposit amount accounts for the 15~20% of nugget ore deposit amount, even more greatly,
And bottom excavation rate is high, the Mining technology condition of recovery is poor, generally 30%~60%, mining loss ratio is big, causes resource unrestrained
Take.
The content of the invention
The invention provides a kind of moat ditch collection ore deposit mining methods of inclined orebody, to solve existing inclined orebody mining side
Method, mining difficulty is big, and mining loss ratio is high, the technology that broken ore collection efficiency is low, mining cost is high and polycrystalline substance is constructed
Problem.
The present invention provides a kind of moat ditch collection ore deposit mining methods of inclined orebody, and the dead zone formed after mining sets moat ditch structure
Build area；The moat ditch that moat ditch constructs area is constructed, and is specially：The upper disk surface in area and the rotation angle position of base surface are constructed in moat ditch, is constructed
Moat ditch for guiding broken ore to move downward and/or protect ore body upper disk surface is domatic；Moat ditch is domatic when constructing in base surface
Reserved collection drive, moat ditch is formed by domatic, the reserved collection drive of the moat ditch constructed, the domatic three of ore body lower wall, for by moat ditch
The broken ore of top back production is gathered on collection drive；Back production moat ditch top ore body, on collection drive and/or collection drive side is entered
Row ore removal.
Further, nugget is arranged along orebody trend, nugget length >=30m, nugget height >=20m, and the width of nugget is
The horizontal breadth of ore body.
Further, moat ditch is constructed, and is used：Directly construct moat ditch method, local top dressing constructs moat ditch method or comprehensive top dressing
Construct moat ditch method.
Further, moat ditch method is directly constructed, is specially：As goaf height >=2m after back production, the ore deposit in goaf
It is domatic that moat ditch is constructed between stone bottom surface and upper disk surface, and in the reserved collection drive in ore bottom surface, it is domatic, reserved by the moat ditch constructed
Collect the domatic three of drive, ore body lower wall and form moat ditch.
Further, local top dressing constructs moat ditch method, is specially：Short transverse in dead zone to be filled is classified as bottom
Filling area and top moat ditch construct area, carry out the filling of bottom filling area first；Then on top, moat ditch constructs the upper disk surface in area
The rotation angle position for the base surface to be formed is filled with bottom, it is domatic to construct moat ditch, and collection drive is reserved when constructing；Finally according to collection drive
Intensity requirement, only to collection drive surface top dressing；By domatic, the reserved collection drive of the moat ditch constructed, the domatic three's structure of ore body lower wall
Into moat ditch.
Further, comprehensive top dressing constructs moat ditch method, is specially：Short transverse in dead zone to be filled is classified as bottom
Filling area, top dressing area and top moat ditch construct area, carry out the filling of bottom filling area first；Then according to collection drive intensity requirement
Carry out top dressing area's filling；Finally on top, moat ditch constructs the upper disk surface and the rotation angle position of the filling base surface of top dressing formation in area,
It is domatic to construct moat ditch, collection drive is reserved when constructing；By domatic, the reserved collection drive of the moat ditch constructed, the domatic three of ore body lower wall
Form moat ditch.
Further, by back production and ore removal way, slicing is taken to be layered ore removal stoping scheme, when taking slicing
It is divided into >=2 segmentations when being layered ore removal stoping scheme, in nugget height, subdivided layering in segmentation, slicing, is layered out
Ore deposit, after the completion of each slicing ore removal, carry out slicing and filling and construct moat ditch, the moat ditch mode of constructing takes local top dressing structure
Build method or comprehensive top dressing constructs moat ditch；Or take substoping to be segmented ore removal scheme, it is segmented ore removal side when taking substoping
During case, >=2 segmentations are divided into nugget height, substoping, ore removal is segmented, after the completion of each substoping ore removal, enters
Row sublevel fill stoping simultaneously constructs moat ditch, and the moat ditch mode of constructing is taken and directly constructs moat ditch method, local top dressing constructs moat ditch method or comprehensive
Top dressing constructs moat ditch method；Or substoping stage ore removal or stage recovery phase ore removal scheme are taken, when taking substoping
When stage ore removal or stage recovery phase ore removal scheme, including it is layered or is segmented or stage back production, stage ore removal, only in stope
Foot constructs moat ditch, and moat ditch, which is constructed to take, directly constructs moat ditch method, after the completion of stope mining, carry out Filling mine-out area processing or
Dead zone does not fill.
Further, after the most next layering of nugget or substoping and ore removal, directly it is layered or sublevel fill stoping, no
Moat ditch is constructed, to improve the globality of obturation, is easy to the back production of bottom ore body.
Further, the domatic construction technology of moat ditch, it is specially：Pocket type is taken to fill, primary filling is constructed or layer stack
Filling is constructed；The final slope angle of moat ditch >=ore natural repose angle.
Further, ore removal, it is specially：Top broken ore is converged on collection drive by moat ditch；Ore removal equipment is optional
With scraper and/or other equipment with Ji Kuang and carrying function；Scraper is from collection drive one end to other end order ore removal
Or the ore removal route side ore removal being connected from middle part to both ends ore removal or driving with collection drive；Scraper is by outside ore handling to arteries and veins
Mine chute or direct entrucking transport out of stope.
The invention has the advantages that：
The moat ditch collection ore deposit mining methods of inclined orebody of the present invention, the moat ditch constructed is domatic, collection drive and lower wall country rock face are total to
With moat ditch collection ore deposit system is formed, after the top ore body back production of moat ditch, broken ore is concentrated in moat ditch, and scraper is in moat ditch Ji Kuang
Shovel dress is carried out on road, ore concentration degree is high, and the scraper efficiency high of scraper, cleaning work amount is few, is advantageous to improve ore recuperation
Rate and ore removal efficiency.Moat ditch construct can effectively support armor rock, significantly reduce upper disk exposed area；The remittance ore deposit of moat ditch
Effect, can avoid worker's operation under upper armor rock exposure；The raising of ore removal efficiency, be advantageous to shorten barnyard after explosion
Open-assembly time, improve back production security.Need to only high intensity consolidated fill, Neng Gou great be carried out to the scraper runway of moat ditch bottom
Width reduces high intensity obturation accounting, effectively reduces filling cost；Ore concentration degree is high, and shovel dress efficiency high, scraper is in moat
Shovel dress in front in ditch, the equipment losses such as tire are reduced, scraper machine operation adjustment number is few, effectively reduces Cost of mining production and mining
Integrated cost.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the step flow chart element of the inclined orebody horizontal slice Trench ore-drawing method of mining by the way of filling of the preferred embodiment of the present invention
Figure；
Fig. 2 is the layering part top dressing scheme slicing and filling schematic diagram of the preferred embodiment of the present invention；
Fig. 3 is that the layering part top dressing scheme moat ditch of the preferred embodiment of the present invention constructs schematic diagram；
Fig. 4 is the layering part top dressing scheme slicing and filling top dressing schematic diagram of the preferred embodiment of the present invention；
Fig. 5 is the layering part top dressing scheme slicing ore removal schematic diagram of the preferred embodiment of the present invention；
Fig. 6 is that the layering part top dressing scheme moat ditch of the preferred embodiment of the present invention constructs thin portion structural representation；
Fig. 7 is the comprehensive top dressing scheme slicing and filling schematic diagram of layering of the preferred embodiment of the present invention；
Fig. 8 is that the comprehensive top dressing scheme moat ditch of layering of the preferred embodiment of the present invention constructs schematic diagram；
Fig. 9 is the comprehensive top dressing scheme slicing and filling top dressing schematic diagram of layering of the preferred embodiment of the present invention；
Figure 10 is the comprehensive top dressing scheme slicing ore removal schematic diagram of layering of the preferred embodiment of the present invention；
Figure 11 is that the comprehensive top dressing scheme moat ditch of layering of the preferred embodiment of the present invention constructs thin portion structural representation.
Marginal data：
1st, moat ditch structures；2nd, obturation；3rd, ore body upper disk surface；4th, broken ore；5th, stage nugget；6th, avalanche country rock；
7th, Slice stoping connecting taxiway；8th, it is segmented tunnel；9th, top dressing high intensity obturation；10th, filling counterfort；11st, moat ditch is domatic；12nd, ore deposit
Body lower wall is domatic；13rd, drive is collected.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the step FB(flow block) of the moat ditch collection ore deposit mining methods of the inclined orebody of the preferred embodiment of the present invention；Fig. 2 is
The layering part top dressing scheme slicing and filling schematic diagram of the preferred embodiment of the present invention；Fig. 3 is the layering of the preferred embodiment of the present invention
Local top dressing scheme moat ditch constructs schematic diagram；Fig. 4 is that the layering part top dressing scheme slicing and filling of the preferred embodiment of the present invention pours
Face schematic diagram；Fig. 5 is the layering part top dressing scheme slicing ore removal schematic diagram of the preferred embodiment of the present invention；Fig. 6 is this hair
The layering part top dressing scheme moat ditch of bright preferred embodiment constructs thin portion structural representation；Fig. 7 is the preferred embodiment of the present invention
It is layered comprehensive top dressing scheme slicing and filling schematic diagram；Fig. 8 is the comprehensive top dressing scheme moat ditch structure of layering of the preferred embodiment of the present invention
Build schematic diagram；Fig. 9 is the comprehensive top dressing scheme slicing and filling top dressing schematic diagram of layering of the preferred embodiment of the present invention；Figure 10 is this hair
The comprehensive top dressing scheme slicing ore removal schematic diagram of layering of bright preferred embodiment；Figure 11 is the layering of the preferred embodiment of the present invention
Comprehensive top dressing scheme moat ditch constructs thin portion structural representation.
Embodiment one：
As shown in figure 1, the moat ditch collection ore deposit mining methods of the inclined orebody of the present embodiment, comprise the following steps：A, along ore body
Vertical direction divides the stage, move towards division nugget along the stage, highly divides segmentation along nugget, subdivided layering in segmentation；B, adopt
Quasi- cutting engineering construction；C, back production and ore removal are successively carried out from the bottom to top；D, slicing and filling and moat ditch are constructed；E, repeat step c
With step d, start next stratified operation；F, mining is completed.This method is applied to more than inclined moderately stable thin arriving
Middle thick orebody mining.The moat ditch collection ore deposit mining methods of inclined orebody of the present invention, the moat ditch constructed is domatic 11, collection drive 13 and ore deposit
Body lower wall domatic 12 is collectively forming moat ditch collection ore deposit system, and after the top ore body back production of moat ditch, broken ore 4 is concentrated in moat ditch,
Scraper carries out shovel dress on moat ditch collection drive, and ore concentration degree is high, and the scraper efficiency high of scraper, cleaning work amount is few, has
Beneficial to raising ore recovery ratio and ore removal efficiency.Moat ditch construct can effectively support armor rock, and it is sudden and violent significantly to reduce upper disk
Show up product；The remittance ore deposit effect of moat ditch, can avoid worker's operation under upper armor rock exposure；The raising of ore removal efficiency, favorably
The open-assembly time of barnyard after explosion is shortened, improve back production security.The scraper runway of moat ditch bottom need to only be carried out high
Intensity consolidated fill, high intensity obturation accounting can be greatly reduced, effectively reduce filling cost；Ore concentration degree is high, shovel
Efficiency high is filled, scraper shovel dress in front in moat ditch, reduces the equipment losses such as tire, scraper machine operation adjustment number is few, effectively
Reduction Cost of mining production and mining integrated cost.
As Figure 1-Figure 11, in the present embodiment, step a is specially：Nugget length is divided into 50m~70m, nugget height
For 40m~50m, the width of nugget is the horizontal breadth of ore body.Multiple segmentations, segmentation height are being divided into nugget short transverse
Spend for 10m~20m.
As Figure 1-Figure 11, in the present embodiment, the quasi- cutting of adopting in step b is specially：It is punctual to adopt, and is dug in ore body lower wall
Enter Zigzag type ramp, according to scraper performance, Zigzag type ramp it is in easy flights in 22%.In order to the operation of scraper
And operation.Between stage nugget 5 one point is tunneled every 10m~20m height away from ore body lower wall border horizontal range 30m~35m
Section gallery, then from slice drift along the length center line of stage nugget 5 to nugget under to driving Slice stoping connecting taxiway 7, Slice stoping
Connecting taxiway 7 it is in easy flights in 22%.In order to which equipment is run.People's row ventilation fill pass is tunneled in ore body.People's row is divulged information
A diameter of 1m~the 2m of fill pass.The gallery that undercuts is tunneled in ore body interior edge orebody trend.After the completion of adopting quasi- engineering, undercut gallery certainly
Start, first disclose the horizontal complete thick of ore body with brushing of caunching, form the pulling end space of stope.
As Figure 1-Figure 11, in the present embodiment, in step c, after the first floor slicing and ore removal of the first segmentation, in ore deposit
Rotation angle position between body upper disk surface 3 and pulling end space base surface is constructed for guiding broken ore 4 to move downward and protecting ore deposit
The moat ditch domatic 11 of body upper disk surface 3.By being constructed and corner portion in the rotation angle position of ore body upper disk surface 3 and pulling end space base surface
The moat ditch structures 1 of non-colinear position.The outside wall surface of moat ditch structures 1 is close to ore body upper disk surface 3 and pulling end space base surface, moat respectively
The exposed face of ditch structures 1 is inclined moat ditch domatic 11.The cross sectional shape approximation of moat ditch structures 1 is triangular in shape, forms triangle
The stable support structure of shape, its buried orebody upper disk surface 3 are formed to ore body with reducing the exposed area of ore body upper disk surface 3
The supporting construction of upper disk surface 3.When moat ditch is constructed, collection drive 13 is reserved in the base surface of pulling end space.By moat ditch it is domatic 11, undercut
The reserved collection drive 13 of the base surface in space, domatic 12 three of ore body lower wall form moat ditch, for collapsing next slicing
Fall ore 4 to be gathered on scraper road in order to ore removal.The moat ditch constructed is domatic 11, collection drive 13 and ore body lower wall domatic 12 are common
With moat ditch collection ore deposit system is formed, after the top orebody mining of moat ditch, broken ore 4 is concentrated in moat ditch, and scraper is in moat ditch
Carry out shovel dress, ore concentration degree is high, and the scraper efficiency high of scraper, cleaning work amount is few, be advantageous to improve ore recovery ratio and
Ore removal efficiency.Moat ditch construct can effectively support armor rock, significantly reduce upper disk exposed area.The remittance ore deposit of moat ditch is made
With worker's operation under upper armor rock exposure can be avoided.The raising of ore removal efficiency, be advantageous to shorten explosion after barnyard it is sudden and violent
Reveal the time, improve back production security.Need to only high intensity consolidated fill be carried out to the scraper runway of moat ditch bottom, can be significantly
High intensity obturation accounting is reduced, effectively reduces filling cost.Ore concentration degree is high, and scraper efficiency high, scraper is in moat ditch
Interior front shovel dress, the equipment losses such as tire are reduced, scraper adjustment number is few, can effectively reduce Cost of mining production and mining integrates
Cost.
As shown in Fig. 1, Fig. 5 and Figure 10, in the present embodiment, the slicing in step c, it is specially：Adopt quasi- cutting engineering
After the completion of, you can start slicing.Layer height is 2m~5m.Slicing is opened from one end of stope to other end order
Adopt.Sexual behavior mode is consolidated depending on stope fall ore deposit rock drilling mode during back production.Alternatively, beared down on one ore falling mode using lateral aperture, lateral aperture chisel
Rock once falls that ore deposit amount is small, but is easily controlled the security of top plate.Alternatively, caunched ore falling mode using upright opening, upright opening
Caunch ore deposit, once fall that ore deposit amount is big, but the stability of top plate whard to control.Rock drilling pattern uses quincunx pattern
Or rectangle pattern, array pitch is 0.8m~1m, explosive specific charge 0.25kg/t~0.5kg/t between blasthole.Returned from stope one end
Adopt to the other end and accuse slicing and terminate, then using rebasing technology of caunching, using the padded Zigzag type ramp of avalanche country rock 6
Ramp connection road.On the one hand filling counterfort 10 is used as, on the other hand as the Slice stoping connecting taxiway 7 for entering next layering.
Slicing from bottom to top successively, always on adopt the foundation of stage nugget 5.
As shown in Fig. 1, Fig. 5 and Figure 10, in the present embodiment, the ore removal in step c, it is specially：The first floor water of first segmentation
Divide layer equally, ore removal uses scraper and/or other auxiliary equipments, and scraper enters stope by layered-liaison tunnel, will converged at
Collect mine chute outside ore handling to the arteries and veins on drive, the arteries and veins loading drift that wears long transports stope, and the bulk during ore removal is concentrated
In working face, it is carried to again in drop shaft after secondary blasting is broken.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 11, in the present embodiment, the layering in step d
Filling and moat ditch are constructed, and are specially：Caunch the padded bottom plate of Slice stoping connecting taxiway 7, arrives the outlet level of Slice stoping connecting taxiway 7
Lower leaf height, then starts slicing and filling and moat ditch is constructed.Slicing and filling, by lift height, when adopting one using one and filling.Layering
Packed height is 2m~5m.Slicing and filling and moat ditch are constructed to be constructed moat ditch using the local top dressing filling of layering or be layered and poured comprehensively
Moat ditch is constructed in face filling.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 6, in the present embodiment, it is layered the filling of local top dressing and constructs moat ditch and be specially：
Slicing and filling, to bottom 1.5m~4.5m of each slicing and filling, filled using low-intensity filling slurry, it is ensured that 5 days interior energy ends
Solidifying upper people, and the exposure of adjacent stope back production side is not caving.Moat ditch is constructed, and moat ditch is constructed using pocket type filling method, takes layering
Stack construction technology, moat ditch slope angle is according to the determination of ore natural repose angle, moat ditch slope angle >=45 °.Moat ditch constructs the bodily form
Cheng Hou, the width for collecting drive meet the minimum widith requirement of scraper operation.Collect drive top dressing, carry out pouring surface layer in collection drive and fill
Fill out and form top dressing high intensity obturation 9, to meet scraper service requirement, surface thickness >=0.5m is poured on top, it is desirable to obturation 2
Intensity can meet rock drilling operation in 10 days, be more than 1.5MPa during ore removal.After the completion of moat ditch is constructed, you can start subsequent cycle and make
Industry.The moat ditch constructed is domatic 11, collection drive 13 and ore body lower wall domatic 12 are collectively forming moat ditch collection ore deposit system, the top ore deposit of moat ditch
After body back production, broken ore 4 is concentrated in moat ditch, and scraper carries out shovel dress on moat ditch collection drive, and ore concentration degree is high, scraper
The scraper efficiency high of machine, cleaning work amount is few, is advantageous to improve ore recovery ratio and ore removal efficiency.Moat ditch construct can be effective
Armor rock in support, significantly reduce upper disk exposed area；The remittance ore deposit effect of moat ditch, can avoid worker from being exposed in upper armor rock
Operation under face；The raising of ore removal efficiency, be advantageous to the open-assembly time of barnyard after shortening explosion, improve back production security.Only need pair
The scraper runway of moat ditch bottom carries out high intensity consolidated fill, high intensity obturation accounting can be greatly reduced, effectively
Reduce filling cost；Ore concentration degree is high, shovel dress efficiency high, scraper shovel dress in front in moat ditch, reduces the equipment such as tire damage
Consumption, scraping process adjustment number is few, effectively reduces Cost of mining production and mining integrated cost.Alternatively, moat ditch can also use
The materials such as cement mortar, concrete, sand-mix construction form, formed design structure and preferably it is domatic, to improve Ji Kuang
Effect.Alternatively, moat ditch can also use the obsolete materials such as slag, cinder, building castoff, discarded support to build composition by laying bricks or stones, with
The utilization rate of waste material is improved, avoids waste material from being polluted caused by accumulating, waste material is re-used, and reaches energy-conservation
The purpose of environmental protection.
As shown in Fig. 1, Fig. 7, Fig. 8, Fig. 9 and Figure 11, in the present embodiment, being layered the filling of comprehensive top dressing, to construct moat ditch specific
For：Slicing and filling, to each slicing and filling bottom 1.5m~4.5m, filled using low-intensity filling slurry, it is ensured that 5 days interior energy ends
Solidifying upper people, and the exposure of adjacent stope back production side is not caving.Top dressing is layered, carries out pouring surface layer filling composition top dressing high intensity filling
Body 9, to meet scraper service requirement, surface thickness >=0.5m is poured on top, it is desirable to which the intensity in 10 days of obturation 2 can meet work
People's rock drilling operation, it is more than 1.5MPa during ore removal.Moat ditch is constructed, and moat ditch is constructed using pocket type filling method, takes layer stack formula structure
Building technology, moat ditch slope angle is according to the determination of ore natural repose angle, moat ditch slope angle >=45 °.After moat ditch construct is formed, Ji Kuang
The width in road meets the minimum widith requirement of scraper operation.After the completion of moat ditch is constructed, you can start subsequent cycle operation.Construct
Moat ditch is domatic 11, collection drive 13 and ore body lower wall domatic 12 are collectively forming moat ditch collection ore deposit system, the top ore body back production of moat ditch
Afterwards, broken ore 4 is concentrated in moat ditch, and scraper carries out shovel dress on moat ditch collection drive, and ore concentration degree is high, the shovel of scraper
Efficiency high is transported, cleaning work amount is few, is advantageous to improve ore recovery ratio and ore removal efficiency.Moat ditch construct can be supported effectively
Armor rock, significantly reduce upper disk exposed area；The remittance ore deposit effect of moat ditch, can avoid worker from making under upper armor rock exposure
Industry；The raising of ore removal efficiency, be advantageous to the open-assembly time of barnyard after shortening explosion, improve back production security.Only need to be to moat bottom of trench
The scraper runway in portion carries out high intensity consolidated fill, and high intensity obturation accounting can be greatly reduced, effectively reduce and fill
Fill into this；Ore concentration degree is high, shovel dress efficiency high, scraper shovel dress in front in moat ditch, reduces the equipment losses such as tire, scraper
Operation adjustment number is few, effectively reduces Cost of mining production and mining integrated cost.
As Figure 1-Figure 11, in the present embodiment, divulge information and enter segmentation tunnel 8 through Zigzag type ramp, then joined by segmentation
Network road enters stope, enters the return aircourse of nugget of upper stage 5 behind cleaning face through filling returnairshaft.
Embodiment two：
In the present embodiment, moat ditch only is constructed in the foot of stope, is gathered in after the top ore body avalanche of moat ditch in moat ditch.
Back production is expanded from the cutting tunnel that undercuts adopts to upper lower burrs, and back production certain altitude reaches the requirement for height for constructing moat ditch then up, and one
As back production height >=2m, then construct moat ditch.Moat ditch is constructed using pocket type filling method, takes layer stack formula construction technology, moat
Ditch slope angle >=ore natural repose angle.Domatic 11, the reserved collection drive 13 of moat ditch, domatic 12 three of ore body lower wall form moat
Ditch；After the completion of moat ditch is constructed, you can start subsequent job.
During implementation, there is provided a kind of moat ditch collection ore deposit mining methods of inclined orebody, the safe and efficient of inclined orebody can be realized
Exploitation, is comprised the following steps that：
1st, nugget inscape
The stage is divided along ore body vertical direction, moves towards to divide nugget along the stage, nugget height 50m, nugget length is 60m,
It is further subdivided into 3 segmentations in short transverse, height of lift is 15m or so, the horizontal breadth of a width of ore body of nugget.
2nd, quasi- cutting is adopted
Adopting cut journey mainly includes：Ramp, slice drift, layering connection road, mine chute, ventilation shaft is filled, undercut lane
Road.
It is punctual to adopt, and Zigzag type ramp is tunneled in ore body lower wall, in easy flights in 22% according to scraper performance, the stage
Between every 15m height left and right tunnel a slice drift away from ore body lower wall border horizontal range about 30~35m, then from slice drift
It is in easy flights in 22% to driving Slice stoping connecting taxiway 7 under to nugget, and people's row ventilation fill pass is tunneled in ore body,
The a diameter of 1.6m of ventilation filling well.Level drive undercuts gallery in ore body, and undercut gallery section 3.1m × 2.8m.Adopt quasi- work
After the completion of journey, since the gallery that undercuts, the full thickness of level of ore body is first disclosed with brushing of caunching, forms the pulling end space of stope.
3rd, back production
After the completion of adopting cut journey, you can start slicing, layer height 2.5m, one end of slicing to stope is to another
One end order mining.Stope steadiness is regarded during back production, rock drilling is carried out using YT-28 rigs, can be beared down on one or hang down using lateral aperture
Straight hole caunches ore deposit two ways, and wherein lateral aperture rock drilling once falls that ore deposit amount is small, but is easily controlled the security of top plate, vertically
Hole is caunched ore deposit, once falls that ore deposit amount is big, but the stability of top plate whard to control, so should be on the firm Sexual behavior mode according to rock
State two methods, pattern uses quincunx or rectangle pattern, and array pitch is 0.8~1m between blasthole, explosive specific charge
0.25~0.3kg/t.Slicing is accused from the back production of stope one end to the other end to terminate, it is then padded using rebasing technology of caunching
Ramp joins road, on the one hand as filling counterfort 10, on the other hand as the Slice stoping connecting taxiway 7 for entering next layering.According to
Secondary slicing from bottom to top, always on adopt stage foundation.
4th, ore removal
Ore removal equipment choosing scraper.Ore body lower wall is domatic 12, collection drive 13 and moat ditch domatic 11 are collectively forming moat ditch, moat
After the ore body back production on ditch top, the ore of avalanche is gathered on collection drive through moat ditch, as shown in figure 4, scraper is from the one of moat ditch
Hold to other end order ore removal, for scraper by mine chute outside ore handling to arteries and veins, the arteries and veins loading drift that wears long transports stope.Ore removal
During bulk concentrate on working face, be carried to again in drop shaft after secondary blasting is broken.
5th, divulge information
It is fresh it is distinguished and admirable enter segmentation tunnel 8 through ramp, then stope is entered by segmentation connecting taxiway, through filling behind cleaning face
Returnairshaft is filled out into return aircourse of upper stage.
6th, slicing and filling and moat ditch are constructed
Caunch the padded bottom plate of Slice stoping connecting taxiway 7 first, makes the outlet of Slice stoping connecting taxiway 7 horizontal high to lower leaf
Degree, then starts slicing and filling and moat ditch is constructed.Slicing and filling, by lift height, when " 1, which adopts 1, fills ", slicing and filling height
2.5m。
Scheme one：It is layered local top dressing filling
(1) slicing and filling, as shown in figure 1, to each slicing and filling bottom 2m, filled using low-intensity filling slurry, 3d
People in energy final set, the exposure of adjacent stope back production side are not caving.
(2) moat ditch is constructed, as shown in Figure 2.Moat ditch is constructed using pocket type filling method, takes layer stack formula construction technology,
Moat ditch slope angle determines according to ore natural repose angle, general >=45 °；After moat ditch construct is formed, the width for collecting drive is necessary
Meet the minimum widith requirement of scraper operation.
(3) drive top dressing is collected, as shown in figure 3, carrying out pouring surface layer filling composition top dressing high intensity obturation 9, to meet to shovel
Surface thickness >=0.5m is poured on fortune machine service requirement, top, it is desirable to and intensity of the obturation 2 in 7 days can meet worker's rock drilling operation,
It is more than 1.5MPa during ore removal.
After the completion of moat ditch is constructed, you can start subsequent cycle operation.
Scheme (two)：It is layered comprehensive top dressing filling
(1) slicing and filling, as shown in fig. 6, to each slicing and filling bottom 2m, filled using low-intensity filling slurry, 3d
People in energy final set, the exposure of adjacent stope back production side are not caving.
(2) top dressing is layered, as shown in fig. 7, carrying out pouring surface layer filling composition top dressing high intensity obturation 9, to meet scraper
Surface thickness >=0.5m is poured on machine service requirement, top, it is desirable to which the intensity in 7 days of obturation 2 can meet worker's rock drilling operation, ore removal
When be more than 1.5MPa.
(3) moat ditch is constructed, as shown in Figure 8.Moat ditch is constructed using pocket type filling method, takes layer stack formula construction technology,
Moat ditch slope angle determines according to ore natural repose angle, general >=45 °；After moat ditch construct is formed, the width for collecting drive is necessary
Meet the minimum widith requirement of scraper operation.
After the completion of moat ditch is constructed, you can start subsequent cycle operation.
Specifically there is following beneficial effect：
(1) ore recovery ratio and ore removal efficiency are improved.The moat ditch constructed is domatic 11, collection drive 13 and ore body lower wall domatic 12
Moat ditch collection ore deposit system is collectively forming, after ore body avalanche, broken ore 4 is concentrated in moat ditch, and scraper carries out shovel dress in moat ditch,
Ore concentration degree is high, and the scraper efficiency high of scraper, cleaning work amount is few, and ore loss ratio is low.
(2) back production security is improved.Moat ditch construct can effectively support armor rock, significantly reduce upper disk exposure
Product；The remittance ore deposit effect of moat ditch, can avoid worker's operation under upper armor rock exposure；The raising of ore removal efficiency, be advantageous to contract
The open-assembly time of barnyard after short explosion.
(3) mining cost is reduced.High intensity consolidated fill only is carried out to the scraper runway of moat ditch bottom, can be significantly
High intensity obturation accounting is reduced, effectively reduces filling cost；Ore concentration degree is high, and scraper efficiency high, scraper is in moat
Shovel dress in front in ditch, the equipment losses such as tire are reduced, scraper adjustment number is few, effectively reduces Cost of mining production.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. moat ditch collection ore deposit mining methods of inclined orebody, it is characterised in thatThe dead zone formed after mining sets moat ditch to construct area；The moat ditch that moat ditch constructs area is constructed, and is specially：The upper disk surface in area and the rotation angle position of base surface are constructed in moat ditch, constructs use Move downward and/or protect the moat ditch of ore body upper disk surface domatic in guiding broken ore；It is pre- in base surface when constructing that moat ditch is domatic Collection drive is stayed, moat ditch is formed by domatic, the reserved collection drive of the moat ditch constructed, the domatic three of ore body lower wall, for by moat ditch The broken ore of portion's back production is gathered on collection drive；Back production moat ditch top ore body, on collection drive and/or collection drive side carries out ore removal.
- 2. the moat ditch collection ore deposit mining methods of inclined orebody according to claim 1, it is characterised in thatStage, level interval >=10m are divided in ore body vertical direction；Move towards to arrange nugget, nugget length >=20m along the stage, the width of nugget is the horizontal breadth of ore body.
- 3. the moat ditch collection ore deposit mining methods of inclined orebody according to claim 1, it is characterised in thatMoat ditch is constructed, and is used：Directly construct moat ditch method, local top dressing constructs moat ditch method or comprehensive top dressing constructs moat ditch method.
- 4. the moat ditch collection ore deposit mining methods of inclined orebody according to claim 3, it is characterised in thatMoat ditch method directly is constructed, is specially：As goaf height >=2m after back production, it is domatic to construct moat ditch between the ore bottom surface in goaf and upper disk surface, and The reserved collection drive in ore bottom surface,Moat ditch is formed by domatic, the reserved collection drive of the moat ditch constructed, the domatic three of ore body lower wall.
- 5. the moat ditch collection ore deposit mining methods of inclined orebody according to claim 3, it is characterised in thatLocal top dressing constructs moat ditch method, is specially：Short transverse in dead zone to be filled is classified as bottom filling area and top moat ditch constructs area,The filling of bottom filling area is carried out first；Then on top, moat ditch constructs the upper disk surface in area and bottom fills the rotation angle position for the base surface to be formed, and constructs moat ditch slope Face, collection drive is reserved when constructing；Finally according to collection drive intensity requirement, only to collection drive surface top dressing；Moat ditch is formed by domatic, the reserved collection drive of the moat ditch constructed, the domatic three of ore body lower wall.
- 6. the moat ditch collection ore deposit mining methods of inclined orebody according to claim 3, it is characterised in thatComprehensive top dressing constructs moat ditch method, is specially：Short transverse in dead zone to be filled is classified as bottom filling area, top dressing area and top moat ditch and constructs area,The filling of bottom filling area is carried out first；Then top dressing area's filling is carried out according to collection drive intensity requirement；Finally on top, moat ditch constructs the upper disk surface and the rotation angle position of the filling base surface of top dressing formation in area, constructs moat ditch slope Face, collection drive is reserved when constructing；Moat ditch is formed by domatic, the reserved collection drive of the moat ditch constructed, the domatic three of ore body lower wall.
- 7. the moat ditch collection ore deposit mining methods of the inclined orebody according to any one of claim 3 to 6, it is characterised in thatBy back production and ore removal way,Slicing is taken to be layered ore removal stoping scheme, when taking slicing to be layered ore removal stoping scheme, in nugget height It is divided into >=2 segmentations, subdivided layering in segmentation, slicing, is layered ore removal, after the completion of each slicing ore removal, Carry out slicing and filling and construct moat ditch, the moat ditch mode of constructing takes local top dressing method for constructing or comprehensive top dressing to construct moat ditch；OrTake substoping to be segmented ore removal scheme, when taking substoping to be segmented ore removal scheme, >=2 are divided into nugget height Individual segmentation, substoping, ore removal is segmented, after the completion of each substoping ore removal, carries out sublevel fill stoping and construct moat ditch, moat ditch The mode of constructing is taken and directly constructs moat ditch method, local top dressing constructs moat ditch method or comprehensive top dressing constructs moat ditch method；OrSubstoping stage ore removal or stage recovery phase ore removal scheme are taken, is returned when taking substoping stage ore removal or stage When adopting stage ore removal scheme, including it is layered or is segmented or stage back production, stage ore removal, only constructs moat ditch in the foot of stope, Moat ditch, which is constructed to take, directly constructs moat ditch method, after the completion of stope mining, carries out Filling mine-out area processing or dead zone does not fill.
- 8. the moat ditch collection ore deposit mining methods of inclined orebody according to claim 7, it is characterised in thatAfter the most next layering of nugget or substoping and ore removal, directly it is layered or sublevel fill stoping, moat ditch is not constructed, to carry The globality of high obturation, it is easy to the back production of bottom ore body.
- 9. the moat ditch collection ore deposit mining methods of inclined orebody according to any one of claim 1 to 6, it is characterised in thatThe domatic construction technology of moat ditch, it is specially：Pocket type is taken to fill, primary filling is constructed or layer stack filling is constructed；Final slope angle >=the ore of moat ditch is rested in peace naturally Angle.
- 10. the moat ditch collection ore deposit mining methods of inclined orebody according to any one of claim 1 to 6, it is characterised in thatOre removal, it is specially：Top broken ore is converged on collection drive by moat ditch；Ore removal equipment can be selected scraper and/or other have Ji Kuang And the equipment for carrying function；What scraper was connected from collection drive one end to other end order ore removal or from middle part to both ends ore removal or driving with collection drive Ore removal route side ore removal；Mine chute outside ore handling to arteries and veins or direct entrucking are transported out of stope by scraper.
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| CN113216963A (en) * | 2021-05-18 | 2021-08-06 | 中钢集团马鞍山矿山研究总院股份有限公司 | Stoping method for gallery ore in transition mining by caving method to filling method |
| RU2757883C1 (en) * | 2021-04-14 | 2021-10-22 | Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) | Method for underground mining of steeply dipping thick ore bodies |
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