CN107654232B - The moat ditch collection mine mining methods of inclined orebody - Google Patents
The moat ditch collection mine mining methods of inclined orebody Download PDFInfo
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- 238000005065 mining Methods 0.000 title claims abstract description 48
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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 mine mining methods of inclined orebody, the dead zone setting moat ditch formed after mining constructs area；The moat ditch that moat ditch constructs area is constructed, specifically: the upper disk surface in area and the rotation angle position of base surface are constructed in moat ditch, construct the moat ditch slope surface for guiding broken ore to move downward and/or protect ore body upper disk surface；In the reserved collection drive of base surface when moat ditch slope surface is constructed, moat ditch is constituted by the moat ditch slope surface constructed, reserved collection drive, ore body lower wall slope surface three, for the broken ore of moat ditch top back production to be gathered in collection drive；Back production moat ditch top ore body, on collection drive and/or collection drive side carries out ore removal.The method is conducive to improve ore recovery ratio, ore removal efficiency, production capacity, back production safety and overall economic efficiency.The orebody mining of the thin thickness to and constructing for moat ditch formula ore removal bottom structure more than inclined moderately stable.
Description
Technical field
The present invention relates to mining technical fields, particularly, are related to adopting for a kind of inclined orebody moat ditch retaining wall and ore removal
Mine method.
Background technique
Ore body is largely inclined orebody, but when the slanting angle of ore body is small, first, armor rock and slicing and filling body press from both sides on ore body
Broken ore between angle, due to space limitations, recovery difficult is very big, causes greatly to adopt lower loss, such case is general
It is 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, mostly use anchor pole, anchor cable etc. to carry out supporting, support engineering amount is big, low efficiency.Third, after ore body avalanche,
Due to blast action, for spew on entire filling layer, high-grade fine ore cleaning difficulty is big, and 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 fall mine cost, and cost is higher when low efficiency.4th, it is above to for horizontal cut and fill stoping, it adopts
With the mechanical equipments ore removal such as scraper, in order to meet the mechanical equipments service requirement such as scraper, slicing and filling lower part is using low strong
The obturation of degree fills, and surface carries out top dressing filling using high-intensitive filling slurry again, and part mine even uses coagulation
Soil carries out top dressing, and the filling cost of top dressing is high.5th, bottom structure mine amount accounts for the 15~20% of nugget mine amount, even more greatly,
And bottom excavation rate is high, and the Mining technology condition of recycling is poor, and generally 30%~60%, mining loss ratio is big, causes resource unrestrained
Take.
Summary of the invention
The present invention provides a kind of moat ditch collection mine mining methods of inclined orebody, to solve existing inclined orebody mining side
Method, mining difficulty is big, the technology that mining loss ratio is high, broken ore collection efficiency is low, mining cost is high and bottom structure is constructed
Problem.
The present invention provides a kind of moat ditch collection mine mining methods of inclined orebody, the dead zone setting moat ditch structure formed after mining
Build area；The moat ditch that moat ditch constructs area is constructed, specifically: the upper disk surface in area and the rotation angle position of base surface are constructed in moat ditch, are constructed
For guiding broken ore to move downward and/or protecting the moat ditch slope surface of ore body upper disk surface；In base surface when moat ditch slope surface is constructed
Reserved collection drive constitutes moat ditch by the moat ditch slope surface constructed, reserved collection drive, ore body lower wall slope surface three, for by moat ditch
The broken ore of top back production is gathered on collection drive；Back production moat ditch top ore body, collection drive on and/or collection drive side into
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 constructing 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, specifically: the mine after back production when goaf height >=2m, in goaf
Moat ditch slope surface is constructed between stone bottom surface and upper disk surface, and in the reserved collection drive in ore bottom surface, by the moat ditch slope surface, reserved constructed
Collect drive, ore body lower wall slope surface three constitutes moat ditch.
Further, local top dressing constructs moat ditch method, specifically: the short transverse in dead zone to be filled is classified as lower part
Filling area and top moat ditch construct area, carry out the filling of lower part filling area first；Then on top, moat ditch constructs the upper disk surface in area
The rotation angle position that the base surface to be formed is filled with lower part constructs moat ditch slope surface, and collection drive is reserved when constructing；Finally according to collection drive
Intensity requirement, only to collection drive surface top dressing；By construct moat ditch slope surface, reserved collection drive, ore body lower wall slope surface three's structure
At moat ditch.
Further, comprehensive top dressing constructs moat ditch method, specifically: the short transverse in dead zone to be filled is classified as lower part
Filling area, top dressing area and top moat ditch construct area, carry out the filling of lower part filling area first；Then according to collection drive intensity requirement
Carry out the filling of top dressing area；The rotation angle position for the filling base surface that finally moat ditch constructs the upper disk surface in area on top and top dressing is formed,
Moat ditch slope surface is constructed, collection drive is reserved when constructing；By construct moat ditch slope surface, reserved collection drive, ore body lower wall slope surface three
Constitute moat ditch.
Further, by back production and ore removal way, slicing is taken to be layered ore removal stoping scheme, when taking slicing
When being layered ore removal stoping scheme, >=2 segmentations, subdivided layering in segmentation are divided into nugget height, slicing is layered out
Mine carries out slicing and filling and constructs moat ditch, the moat ditch mode of constructing takes local top dressing structure after the completion of each slicing ore removal
It builds method or comprehensive top dressing constructs moat ditch；Or take substoping be segmented ore removal scheme, when take substoping be segmented ore removal side
When case, >=2 segmentations are divided into nugget height, substoping is segmented ore removal, after the completion of each substoping ore removal, into
Row sublevel fill stoping simultaneously constructs moat ditch, and the moat ditch mode of constructing takes moat ditch method of directly constructing, local top dressing to construct 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
Lowest part 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, nugget most it is next layering or substoping and ore removal after, directly carry out layering or sublevel fill stoping, no
Moat ditch is constructed, to improve the globality of obturation, convenient for the back production of lower part ore body.
Further, moat ditch slope surface construction technology, specifically: take pocket type 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, specifically: 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 drive one end is collected to other end sequence 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 will be outside ore handling to arteries and veins
Mine chute or direct entrucking transport out of stope.
The invention has the following advantages:
The moat ditch collection mine mining methods of inclined orebody of the present invention, the moat ditch slope surface constructed, collection drive and lower wall country rock face are total
With moat ditch collection mine 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 of scraper is high-efficient, and cleaning workload is few, is conducive 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 mine of moat ditch
Effect, can be avoided worker's operation under upper armor rock exposure；The raising of ore removal efficiency is conducive to shorten barnyard after explosion
Exposure duration improves back production safety.High-intensitive consolidated fill, Neng Gou great need to be only carried out to the scraper runway of moat ditch bottom
Width reduces high-intensitive obturation accounting, effectively reduces filling cost；Ore concentration degree is high, and shovel fills high-efficient, and scraper is in moat
Shovel dress in front in ditch reduces the equipment losses such as tire, and scraper machine operation adjustment number is few, effectively reduces Cost of mining production and mining
Overall cost.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations 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 the layering part top dressing scheme moat ditch construction schematic of the preferred embodiment of the present invention；
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 schematic diagram；
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 the comprehensive top dressing scheme moat ditch construction schematic of layering of the preferred embodiment of the present invention；
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 schematic diagram.
Marginal data:
1, moat ditch structures；2, obturation；3, ore body upper disk surface；4, broken ore；5, stage nugget；6, avalanche country rock；
7, Slice stoping connecting taxiway；8, it is segmented tunnel；9, top dressing high intensity obturation；10, filling counterfort；11, moat ditch slope surface；12, mine
Body lower wall slope surface；13, collect drive.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached 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 flow diagram of the moat ditch collection mine 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 construction schematic；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 schematic diagram；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 the 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 schematic diagram.
Embodiment one:
As shown in Figure 1, the moat ditch collection mine mining methods of the inclined orebody of the present embodiment, comprising the following steps: a, along ore body
Vertical direction divides the stage, moves towards to divide nugget along the stage, divides and be segmented along nugget height, subdivided layering in segmentation；B, it adopts
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, step c is repeated
With step d, start next stratified operation；F, mining is completed.This method is suitable for the thin of inclined moderately stable or more and arrives
The orebody mining of middle thickness.The moat ditch collection mine mining methods of inclined orebody of the present invention, the moat ditch slope surface 11 constructed, collection drive 13 and mine
Moat ditch collection mine system is collectively formed in body lower wall slope surface 12, 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 of scraper is high-efficient, and cleaning workload is few, has
Conducive 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 mine of moat ditch acts on, and can be avoided worker's operation under upper armor rock exposure；The raising of ore removal efficiency, favorably
The exposure duration of barnyard after shortening explosion improves back production safety.The scraper runway of moat ditch bottom need to only be carried out high
Intensity consolidated fill can be greatly reduced high-intensitive obturation accounting, effectively reduce filling cost；Ore concentration degree is high, shovel
High-efficient, scraper shovel dress in front in moat ditch is filled, reduces the equipment losses such as tire, it is few that scraper machine operation adjusts number, effectively
Reduction Cost of mining production and mining overall cost.
As shown in Figure 1-Figure 11, in the present embodiment, step a specifically: 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 are being divided into nugget short transverse, segmentation is high
Degree is 10m~20m.
As shown in Figure 1-Figure 11, in the present embodiment, quasi- cutting is adopted in step b specifically: it is punctual to adopt, and digs in ore body lower wall
Into 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.One point is tunneled away from ore body lower wall boundary horizontal distance 30m~35m every 10m~20m height between stage nugget 5
Section gallery, then from slice drift along 5 length middle line of stage nugget under nugget to driving Slice stoping connecting taxiway 7, Slice stoping
Connecting taxiway 7 it is in easy flights in 22%.In order to equipment operation.People's row ventilation fill pass is tunneled in ore body.The ventilation of people's row
Fill pass diameter is 1m~2m.The gallery that undercuts is tunneled along orebody trend in ore body.After the completion of adopting quasi- engineering, undercut gallery certainly
Start, the level for first disclosing ore body with brushing of caunching is complete thick, forms the pulling end space of stope.
As shown in Figure 1-Figure 11, in the present embodiment, in step c, after the first floor slicing and ore removal of the first segmentation, in mine
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 mine
The moat ditch slope surface 11 of body upper disk surface 3.It is constructed by the rotation angle position in ore body upper disk surface 3 and pulling end space base surface and corner portion
The moat ditch structures 1 that position matches.1 outside wall surface of moat ditch structures 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 slope surface 11.1 cross sectional shape approximation of moat ditch structures is triangular in shape, forms triangle
The stable support structure of shape, buried orebody upper disk surface 3 are formed simultaneously with reducing the exposed area of ore body upper disk surface 3 to ore body
The support 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 slope surface 11, undercut
The reserved collection drive 13 of the base surface in space, 12 three of ore body lower wall slope surface constitute moat ditch, for collapsing next slicing
Ore 4 is fallen to be gathered on scraper road in order to ore removal.Moat ditch slope surface 11, collection drive 13 and the ore body lower wall slope surface 12 constructed are total
With moat ditch collection mine system is constituted, 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 of scraper is high-efficient, and cleaning workload is few, be conducive 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 mine of moat ditch is made
With can be avoided worker's operation under upper armor rock exposure.The raising of ore removal efficiency, be conducive to shorten explosion after barnyard it is sudden and violent
Reveal the time, improves back production safety.High-intensitive consolidated fill need to be only carried out to the scraper runway of moat ditch bottom, it can be substantially
High-intensitive obturation accounting is reduced, filling cost is effectively reduced.Ore concentration degree is high, and scraper is high-efficient, and scraper is in moat ditch
Interior front shovel dress reduces the equipment losses such as tire, and scraper adjustment number is few, can effectively reduce Cost of mining production and mining synthesis
Cost.
As shown in Fig. 1, Fig. 5 and Figure 10, in the present embodiment, slicing in step c, specifically: adopt quasi- cutting engineering
After the completion, slicing can be started.Layer height is 2m~5m.Slicing is opened from one end of stope to other end sequence
It adopts.Mine rock drilling mode is fallen depending on the selection of stope stability when back production.Optionally, beared down on one ore falling mode using lateral aperture, lateral aperture chisel
Rock once falls that mine amount is small, but is easy to control the safety of top plate.Optionally, it is caunched ore falling mode using vertical hole, vertical hole
It caunches and falls mine, once fall that mine amount is big, but the stability of top plate not easy 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.It is returned from stope one end
It adopts to the other end and accuses slicing and terminate, then using rebasing technology of caunching, using the padded Zigzag type ramp of avalanche country rock 6
Ramp join road.On the one hand it is used as filling counterfort 10, on the other hand as the Slice stoping connecting taxiway 7 for entering next layering.
Successively slicing from bottom to top, always on adopt the foundation of stage nugget 5.
As shown in Fig. 1, Fig. 5 and Figure 10, in the present embodiment, ore removal in step c, specifically: the first floor water of the first segmentation
Divide layer equally, ore removal enters stope by layered-liaison tunnel using scraper and/or other ancillary equipments, scraper, will converge at
Collect mine chute outside the ore handling to arteries and veins on drive, worn arteries and veins loading drift and transport stope, the bulk during ore removal is concentrated
In working face, it is carried in drop shaft again after secondary blasting is broken.
As shown in Figure 1, Figure 2, the layering shown in Fig. 3, Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 11, in the present embodiment, in step d
Filling and moat ditch are constructed, specifically: caunch padded 7 bottom plate of Slice stoping connecting taxiway, arrives 7 outlet level of Slice stoping connecting taxiway
Lower leaf height, then starts slicing and filling and moat ditch is constructed.Slicing and filling, by lift height, when use one is adopted one and filled.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 be poured comprehensively
Moat ditch is constructed in face filling.
As shown in Figure 1, Figure 2, it shown in Fig. 3, Fig. 4 and Fig. 6, in the present embodiment, is layered local top dressing filling and constructs moat ditch specifically:
Slicing and filling fills lower part 1.5m~4.5m of each slicing and filling using low-intensity filling slurry, it is ensured that can be eventually in 5 days
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 determining according to 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, carries out pouring surface layer in collection drive and fill
It fills out and constitutes top dressing high intensity obturation 9, to meet scraper service requirement, surface thickness >=0.5m is poured on top, it is desirable that obturation 2
Intensity is able to satisfy rock drilling operation in 10 days, and when ore removal is greater than 1.5MPa.After the completion of moat ditch is constructed, subsequent cycle work can be started
Industry.Moat ditch collection mine system, the top mine of moat ditch is collectively formed in moat ditch slope surface 11, collection drive 13 and the ore body lower wall slope surface 12 constructed
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 of machine is high-efficient, and cleaning workload is few, is conducive to improve ore recovery ratio and ore removal efficiency.Moat ditch construct can be effective
Armor rock in support significantly reduces upper disk exposed area；The remittance mine of moat ditch acts on, and can be avoided worker in the exposure of upper armor rock
Operation under face；The raising of ore removal efficiency is conducive to the exposure duration of barnyard after shortening explosion, improves back production safety.Only need pair
The scraper runway of moat ditch bottom carries out high-intensitive consolidated fill, high-intensitive obturation accounting can be greatly reduced, effectively
Reduce filling cost；Ore concentration degree height, shovel fill high-efficient, scraper shovel dress in front in moat ditch, the equipment damage such as reduction tire
Consumption, scraping process adjustment number is few, effectively reduces Cost of mining production and mining overall cost.Optionally, moat ditch can also use
The materials such as cement mortar, concrete, sand-mix construct, and design structure and ideal slope surface are formed, to improve Ji Kuang
Effect.Optionally, moat ditch can also be built using obsolete materials such as slag, cinder, building castoff, discarded brackets and be constituted, with
The utilization rate for improving waste material, pollution caused by avoiding waste material from accumulating, waste material are re-used, and energy conservation is reached
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
Are as follows: slicing and filling fills each slicing and filling lower part 1.5m~4.5m using low-intensity filling slurry, it is ensured that can be eventually in 5 days
Solidifying upper people, and the exposure of adjacent stope back production side is not caving.It is layered top dressing, 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 that the intensity in 10 days of obturation 2 is able to satisfy work
People's rock drilling operation is greater than 1.5MPa when 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 determining according to 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, subsequent cycle operation can be started.It constructs
Moat ditch slope surface 11, collection drive 13 and ore body lower wall slope surface 12 moat ditch collection mine system, the top ore body back production of moat ditch is collectively formed
Afterwards, broken ore 4 concentrates in moat ditch, and scraper carries out shovel dress on moat ditch collection drive, and ore concentration degree is high, the shovel of scraper
Transport high-efficient, cleaning workload is few, is conducive to improve ore recovery ratio and ore removal efficiency.Moat ditch construct can be supported effectively
Armor rock significantly reduces upper disk exposed area；The remittance mine of moat ditch acts on, and can be avoided worker and makees under upper armor rock exposure
Industry；The raising of ore removal efficiency is conducive to the exposure duration of barnyard after shortening explosion, improves back production safety.It only need to be to moat bottom of trench
The scraper runway in portion carries out high-intensitive consolidated fill, and high-intensitive obturation accounting can be greatly reduced, effectively reduce and fill
Fill into this；Ore concentration degree height, shovel fill high-efficient, scraper shovel dress in front in moat ditch, the equipment losses such as reduction tire, scraper
Operation adjustment number is few, effectively reduces Cost of mining production and mining overall cost.
As shown in Figure 1-Figure 11, in the present embodiment, ventilation enters segmentation tunnel 8 through Zigzag type ramp, then is 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 lowest part of stope, is gathered in moat ditch after the top ore body avalanche of moat ditch.
Back production is adopted from undercuting to cut tunnel and expand 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.Moat ditch slope surface 11, reserved collection drive 13,12 three of ore body lower wall slope surface constitute moat
Ditch；After the completion of moat ditch is constructed, subsequent job can be started.
When implementation, a kind of moat ditch collection mine mining methods of inclined orebody are provided, can be realized the safe and efficient of inclined orebody
Exploitation, the specific steps are as follows:
1, nugget constituent element
The stage is divided along ore body vertical direction, moves towards to divide nugget, nugget height 50m along the stage, nugget length is 60m,
3 segmentations are further subdivided into short transverse, height of lift is 15m or so, and nugget width is the horizontal breadth of ore body.
2, quasi- cutting is adopted
It adopts cutting journey and specifically includes that ramp, slice drift, layering connection road, mine chute, filling ventilation shaft, undercut lane
Road.
It is punctual to adopt, and tunnels Zigzag type ramp in ore body lower wall, in easy flights in 22% according to scraper performance, the stage
Between every 15m height or so tunnel a slice drift away from ore body lower wall boundary horizontal distance 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,
Ventilation filling well diameter is 1.6m.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 level for first disclosing ore body with brushing of caunching is complete thick, forms the pulling end space of stope.
3, back production
After the completion of adopting cutting journey, slicing can be started, layer height 2.5m, one end of slicing to stope is to another
One end order mining.Stope stability is regarded when back production, rock drilling is carried out using YT-28 drilling machine, can be beared down on one or be hung down using lateral aperture
Straight hole, which caunches, falls mine two ways, and wherein lateral aperture rock drilling once falls that mine amount is small, but is easy to control the safety of top plate, vertically
Hole, which is caunched, falls mine, once falls that mine amount is big, but the stability of top plate not easy to control, so should be selected according to the stability of rock
Two methods are stated, pattern uses quincunx or rectangle pattern, and array pitch is 0.8~1m, explosive specific charge between blasthole
0.25~0.3kg/t.Slicing is accused from the back production of stope one end to the other end to be terminated, then padded using rebasing technology of caunching
Ramp joins road, is on the one hand used 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.
4, ore removal
Ore removal equipment choosing scraper.Moat ditch, moat is collectively formed in ore body lower wall slope surface 12, collection drive 13 and moat ditch slope surface 11
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
It holds to other end sequence ore removal, mine chute outside ore handling to arteries and veins is worn arteries and veins loading drift and transport stope by scraper.Ore removal
Bulk in the process concentrates on working face, is carried in drop shaft again after secondary blasting is broken.
5, it divulges 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.
6, slicing and filling and moat ditch are constructed
Caunch padded 7 bottom plate of Slice stoping connecting taxiway first, makes 7 outlet level of Slice stoping connecting taxiway to lower leaf height
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, being filled using low-intensity filling slurry, 3d to each slicing and filling lower part 2m
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 is determined 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) collect drive top dressing, as shown in figure 3, carrying out pouring surface layer filling composition top dressing high intensity obturation 9, to meet shovel
Surface thickness >=0.5m is poured on fortune machine service requirement, top, it is desirable that and intensity of the obturation 2 in 7 days is able to satisfy worker's rock drilling operation,
It is greater than 1.5MPa when ore removal.
After the completion of moat ditch is constructed, subsequent cycle operation can be started.
Scheme (two): it is layered comprehensive top dressing filling
(1) slicing and filling, as shown in fig. 6, being filled using low-intensity filling slurry, 3d to each slicing and filling lower part 2m
People in energy final set, the exposure of adjacent stope back production side are not caving.
(2) it is layered top dressing, 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 that the intensity in 7 days of obturation 2 is able to satisfy worker's rock drilling operation, ore removal
When be greater 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 is determined 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, subsequent cycle operation can be started.
Specifically have it is following the utility model has the advantages that
(1) ore recovery ratio and ore removal efficiency are improved.Moat ditch slope surface 11, collection drive 13 and the ore body lower wall slope surface 12 constructed
Moat ditch collection mine system is collectively formed, 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 of scraper is high-efficient, and cleaning workload is few, and ore loss ratio is low.
(2) back production safety is improved.Moat ditch construct can effectively support armor rock, significantly reduce upper disk exposure
Product；The remittance mine of moat ditch acts on, and can be avoided worker's operation under upper armor rock exposure；The raising of ore removal efficiency is conducive to contract
The exposure duration of barnyard after short explosion.
(3) mining cost is reduced.High-intensitive consolidated fill only is carried out to the scraper runway of moat ditch bottom, it can be substantially
High-intensitive obturation accounting is reduced, filling cost is effectively reduced；Ore concentration degree is high, and scraper is high-efficient, and scraper is in moat
Shovel dress in front in ditch reduces the equipment losses such as tire, and scraper adjustment number is few, effectively reduces Cost of mining production.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of moat ditch collection mine mining methods of inclined orebody, which is characterized in that
The dead zone setting moat ditch formed after mining constructs area；
The moat ditch that moat ditch constructs area is constructed, specifically: the upper disk surface in area and the rotation angle position of base surface are constructed in moat ditch, construct use
The moat ditch slope surface of ore body upper disk surface, moat ditch slope angle >=45 ° are moved downward and/or protected in guidance broken ore；Moat ditch slope surface
In the reserved collection drive of base surface when constructing, moat is constituted by the moat ditch slope surface constructed, reserved collection drive, ore body lower wall slope surface three
Ditch, for the broken ore of moat ditch top back production to be gathered in collection drive；
Back production moat ditch top ore body, on collection drive and/or collection drive side carries out ore removal；
Moat ditch is constructed, and using directly constructing, moat ditch method, local top dressing constructs moat ditch method or comprehensive top dressing constructs moat ditch method；
The stage is divided along ore body vertical direction, moves towards to divide nugget along the stage, divides and be segmented along nugget height, it is subdivided in segmentation
Layering, by 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
>=2 segmentations, subdivided layering in segmentation are divided into, slicing is layered ore removal, after the completion of each slicing ore removal,
It carries out slicing and filling and constructs moat ditch, the moat ditch mode of constructing takes local top dressing method for constructing or comprehensive top dressing to construct moat ditch；Or
It takes substoping to be segmented ore removal scheme, when taking substoping to be segmented ore removal scheme, is divided into >=2 in nugget height
A segmentation, substoping are segmented ore removal, after the completion of each substoping ore removal, carry out sublevel fill stoping and construct moat ditch, moat ditch
The mode of constructing takes that moat ditch method of directly constructing, local top dressing constructs moat ditch method or comprehensive top dressing constructs moat ditch method；Or
Substoping stage ore removal scheme is taken, when taking substoping stage ore removal scheme, including is layered or is segmented or rank
Section back production, stage ore removal only construct moat ditch in the lowest part of stope, and moat ditch, which is constructed to take, directly constructs moat ditch method, stope mining
After the completion, it carries out Filling mine-out area processing or dead zone does not fill.
2. the moat ditch collection mine mining methods of inclined orebody according to claim 1, which is characterized in that
Stage, level interval >=10m are divided in ore body vertical direction；
Arrangement nugget, nugget length >=20m are moved towards along the stage, the width of nugget is the horizontal breadth of ore body.
3. the moat ditch collection mine mining methods of inclined orebody according to claim 1, which is characterized in that
Moat ditch method directly is constructed, specifically:
After back production when goaf height >=2m, moat ditch slope surface is constructed between the ore bottom surface in goaf and upper disk surface, and
The reserved collection drive in ore bottom surface,
Moat ditch is constituted by the moat ditch slope surface constructed, reserved collection drive, ore body lower wall slope surface three.
4. the moat ditch collection mine mining methods of inclined orebody according to claim 1, which is characterized in that
Local top dressing constructs moat ditch method, specifically:
Short transverse in dead zone to be filled is classified as lower part filling area and top moat ditch constructs area,
The filling of lower part filling area is carried out first；
Then the upper disk surface that moat ditch constructs area on top fills the rotation angle position for the base surface to be formed with lower part, constructs moat ditch slope
Collection drive is reserved in face when constructing；
Finally according to collection drive intensity requirement, only to collection drive surface top dressing；
Moat ditch is constituted by the moat ditch slope surface constructed, reserved collection drive, ore body lower wall slope surface three.
5. the moat ditch collection mine mining methods of inclined orebody according to claim 1, which is characterized in that
Comprehensive top dressing constructs moat ditch method, specifically:
Short transverse in dead zone to be filled is classified as lower part filling area, top dressing area and top moat ditch and constructs area, carries out first
The filling of lower part filling area；
Then the filling of top dressing area is carried out according to collection drive intensity requirement；
The rotation angle position for the filling base surface that finally moat ditch constructs the upper disk surface in area on top and top dressing is formed, constructs moat ditch slope
Collection drive is reserved in face when constructing；
Moat ditch is constituted by the moat ditch slope surface constructed, reserved collection drive, ore body lower wall slope surface three.
6. the moat ditch collection mine mining methods of inclined orebody according to claim 1, which is characterized in that
After the most next layering of nugget or substoping and ore removal, layering or sublevel fill stoping are directly carried out, does not construct moat ditch, to mention
The globality of high obturation, convenient for the back production of lower part ore body.
7. the moat ditch collection mine mining methods of inclined orebody according to any one of claim 1 to 5, which is characterized in that
Moat ditch slope surface construction technology, specifically:
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.
8. the moat ditch collection mine mining methods of inclined orebody according to any one of claim 1 to 5, which is characterized in that
Ore removal, specifically:
Top broken ore is converged on collection drive by moat ditch；Ore removal equipment can be selected scraper and/or it is other have Ji Kuang
And the equipment for carrying function；
Scraper is connected to other end sequence ore removal or from middle part to both ends ore removal or driving with collection drive from collection drive one end
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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| US4072352A (en) * | 1974-08-20 | 1978-02-07 | Erik Ingvar Janelid | Method for mining of rock or ore according to the block caving principle in massive formations |
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| CN105019902A (en) * | 2015-05-12 | 2015-11-04 | 中冶北方（大连）工程技术有限公司 | Intra-vein inclined drift overhand cut-and-filling mining method |
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