CN110295908A - A kind of gently inclined medium thick orebody mining methods in the segmentation lane that rises and falls - Google Patents
A kind of gently inclined medium thick orebody mining methods in the segmentation lane that rises and falls Download PDFInfo
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- CN110295908A CN110295908A CN201910536381.8A CN201910536381A CN110295908A CN 110295908 A CN110295908 A CN 110295908A CN 201910536381 A CN201910536381 A CN 201910536381A CN 110295908 A CN110295908 A CN 110295908A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
Abstract
The invention discloses a kind of fluctuatings to be segmented lane gently inclined medium thick orebody mining methods, ore body across pitch is divided into wide nugget, nugget is divided into bar shaped stope by across strike.Rail haulage way, exploiting field ramp, slice drift connecting taxiway and the segmentation tunnel that rises and falls are arranged in ore body lower wall, from segmentation tunnel high point construction connection roadway to ore body, it constructs to form upper layer filling air return lane, upper layer filling return air chamber, upper layer filling return air drilling across ore body, connection roadway is constructed to ore body from segmentation tunnel low spot, constructs to form lower layer's filling air return lane, lower layer's filling return air chamber, lower layer's filling return air drilling across ore body.Bar shaped stope is spaced back production, a step back production odd number bar shaped stope, high-intensitive cemented fill filling, two step back production even number bar shaped stopes, the filling of low-intensity obturation suddenly in two steps.Stope uses medium-length hole ore blast, scraper ore removal, dead zone afterwards filling.The present invention has many advantages, such as that stoping operation safety, production capacity of mining field are big, adopts and cut project amount less.
Description
Technical field
The invention belongs to underground mining fields more particularly to a kind of fluctuating to be segmented lane gently inclined medium thick orebody mining methods.
Background technique
It is greater than 15 ° of gently inclined medium thick orebody for gently inclined medium thick orebody, the especially slanting angle of ore body, since equipment is climbed
Ability is limited and the slanting angle of ore body is much smaller than ore natural repose angle, therefore the shipment of ore is difficult, to realize efficient peace
Standard-sized sheet is adopted even more extremely difficult.
In order to realize that gently inclined medium thick orebody highly effective and safe is exploited, it is necessary to select the equipment such as scraper and drill jumbo, be
The operation of corollary equipment often uses ramp+slice drift arrangement form.The height of lift of the arrangement form is smaller
When, be conducive to arrange the lane Chuan Mai, can effectively control ore dilution loss rate, still, in the case that miding level height is certain, segmentation
Highly smaller, the quantity of slice drift is also more, and project amount will significantly improve, and adopts and cuts than also correspondingling increase, the unit of ore
Cost can also improve;On the contrary, in the case that miding level height is certain, the quantity of slice drift is fewer when height of lift is larger,
Project amount is also relatively fewer, but height of lift is excessive to be unfavorable for arranging the lane Chuan Mai and rock drilling lane, ore dilution loss rate also phase
To higher.In short, the arrangement form can determine optimal height of lift, but cannot best solve to adopt Qie Bigao simultaneously
The high problem with depletion loss.
For this purpose, a kind of fluctuating of the invention is segmented lane gently inclined medium thick orebody mining methods, it is intended to which comprehensive solution is above-mentioned
Problem.
Summary of the invention
Technical problem to be solved by the present invention lies in providing, safe and reliable one kind, stable production capacity, production cost are low
A kind of fluctuating be segmented lane gently inclined medium thick orebody mining methods.This method is adapted to the slanting angle of ore body > 15 °, ore-rock moderately stable
Middle thick gently inclined orebody, risen and fallen segmentation lane by arrangement, segmentation project amount and effectively control depletion loss rate can be reduced, guaranteed
Scale ore removal is pressed with effectively being controlled by afterwards filling, finally realizes safety, economy, high-efficiency mining.
In order to solve the above technical problems, a kind of fluctuating provided by the invention is segmented lane gently inclined medium thick orebody mining methods packet
Include following steps:
1) ore body across pitch is divided into wide nugget, each nugget is then divided into bar shaped stope along orebody strike,
Level haulage gallery is arranged along orebody trend in ore body lower wall, arranges the middle section of vertical orebody trend every 200m along orebody trend
Crosscut is transported, is open from level haulage gallery and tunnels exploiting field ramp;
2) from exploiting field ramp every the high 20m opening driving segmentation lane connecting taxiway that hangs down, and segmentation lane is arranged along orebody trend
Road, segmentation tunnel use undulated arrangement, become slope every 100m, are respectively to be segmented tunnel high point in corresponding studding central location
With segmentation tunnel low spot;
3) from disk on the vertical ore body driving upper layer connection roadway to ore body of segmentation tunnel high point, continue driving in the direction and formed
Upper layer fills return air connection roadway, then fills air return lane along orebody trend driving upper layer from upper layer filling return air connection roadway end.
Setting upper layer fills return air chamber at away from upper layer filling return air connection roadway opening about 80m, the cloth in upper layer filling return air chamber
Filling return air is set to drill to bar shaped stope.In addition, in upper layer connection roadway along ore body at 2 bar shaped stope lower walls of ore body
Move towards arrangement 2 upper layers rock drilling lane;
4) from disk on the vertical ore body driving lower layer's connection roadway to ore body of segmentation tunnel low spot, continue driving in the direction and formed
Lower layer fills return air connection roadway, then fills air return lane along orebody trend driving lower layer from lower layer filling return air connection roadway end.
Setting lower layer fills return air chamber at away from lower layer filling return air connection roadway opening about 80m, the cloth in lower layer's filling return air chamber
Filling return air is set to drill to bar shaped stope.In addition, in lower layer's connection roadway along ore body at 2 bar shaped stope lower walls of ore body
Move towards 2 lower layer's rock drilling lanes of arrangement;
5) release hole chamber is set from the outside of segmentation tunnel low spot, under release hole chamber extremely to Drilling release hole
Middle section drains connection roadway, and draining connection roadway is communicated with level haulage crosscut;
6) ore pass chamber in upper layer is set from the outside of segmentation tunnel high point, ore pass chamber tunnels downwards upper layer mine on upper layer
Stone ore pass is to level haulage crosscut;
7) from lower layer's connection roadway away from rock drilling lane opening 10m left and right settings lower layer ore pass chamber, in lower layer's ore pass chamber
Lower layer's ore ore pass is tunneled downwards to level haulage crosscut.
The nugget width is 100m, and the bar shaped Width of stope needs are determined according to physical properties of ore & rock.
The exploiting field ramp is to be arranged one every 600m, is responsible for personnel's material installation transport of left and right 300m ore body,
The gradient≤15%.
In undulated, the descending grade gradient and the climbing gradient are equal to 10% in the segmentation tunnel, the segmentation tunnel high point with
The height difference for being segmented tunnel low spot is 10m.
The upper layer connection roadway and upper layer filling return air connection roadway are in climbing shape, the gradient≤3 ‰ of climbing, lower layer's contact
Lane and lower layer's filling return air connection roadway are in climbing shape, the gradient≤3 ‰ of climbing.
The filling returnairshaft is used for the afterwards filling of stope explosion ventilation and stope, and the release hole cave is indoor to be let out
Water drilling hole usually requires setting 2, a preparation and a use.
The bar shaped stope is spaced back production, a step back production odd number bar shaped stope, high-intensitive consolidated fill suddenly in two steps
Body filling, two step back production even number bar shaped stopes, the filling of low-intensity obturation, stope mining use medium-length hole ore blast, avalanche
Ore uses scraper ore removal, goaf afterwards filling after back production ore removal, after the every separate explosion of stope, using non-remote control scraper
Machine is the one third of each broken ore from rock drilling heading portion ore removal, yield, after stope ore whole avalanche, then is adopted
With remote-controlled scraper from rock drilling heading portion ore removal, until entire stope ore is all complete out.
Beneficial effect
The advantages and positive effects of the present invention include: that first, segmentation tunnel is set as undulated, and the tunnel Chuan Mai is also vertical
Spatially interlaced arrangement, the adjacent vertical height difference for wearing arteries and veins are 10m, are more advantageous to control ore body, can substantially reduce depletion loss rate;
The second, due to segmentation tunnel be set as undulated, hang down all control ore body 10m on high direction under the premise of, compared to flat slope be segmented
Lane arrangement, reduces the segmentation roadway engineering amount of half, greatly reduces to adopt and cut ratio;Third, higher slice connection roadway (or higher slice
Connection roadway) can be back production or so 100m stope totally 4, it is high to adopt cutting journey utilization rate, convenient for collaboration control and equipment regulation;4th,
All to adopt in cutting journey, the roadway engineering of all gradient > 3 ‰ only runs empty-load device and transport material installation, transports mine equipment institute
The roadway gradient of operation≤3 ‰, is greatly improved the working efficiency of fortune mine equipment, is conducive to promote using full-automatic scraper
Machine;5th, the minimum point in segmentation tunnel is arranged in release hole chamber, is conducive to collect underground water, equipment water and obturation
Drainage avoids tunnel road miriness, is conducive to improve equipment operating efficiency;6th, it is specially provided with filling returnairshaft, is divulged information
Condition is good, and presses with being conducive to Tight filling and control;7th, explosion falls ore mining fan shaped medium length hole short-delay blasting mode,
Explosive and detonator unit consumption are low, and onepull mine amount is greatly, it can be achieved that the intensive ore removal of scraper, improves automation scraper
Working efficiency.
Detailed description of the invention
Fig. 1 is A-A sectional view of the present invention;
Fig. 2 is B-B top view of the present invention;
Fig. 3 is C-C side view of the present invention;
In figure: 1- level haulage gallery;2- level haulage crosscut;The exploiting field 3- ramp;4- is segmented tunnel;4-1- segmentation
Tunnel high point;4-2- is segmented tunnel low spot;The upper layer 5-1- connection roadway;5-2- lower layer connection roadway;The upper layer 6-1- rock drilling lane;6-2-
Lower layer's rock drilling lane;The upper layer 7-1- ore pass chamber;7-2- lower layer ore pass chamber;The upper layer 8-1- ore pass;Mine is slipped by 8-2- lower layer
Well;9- release hole;The upper layer 10-1- fills return air connection roadway;10-2- lower layer fills return air connection roadway;The upper layer 11-1- fills back
Air way;11-2- lower layer fills air return lane;The upper layer 12-1- fills return air chamber;12-2- lower layer fills return air chamber;On 13-1-
Layer filling returnairshaft;13-2- lower layer fills returnairshaft;14- fan shaped medium length hole;15-1- high intensity obturation;15-2- low-intensity
Obturation;16- collection mine moat ditch;17- studding;18- is segmented lane connecting taxiway;19- release hole chamber;The middle section 20- drains connection roadway.
Specific embodiment
Clear, complete description is carried out below with reference to technical solution of the attached drawing to various embodiments of the present invention, it is clear that is retouched
The embodiment stated is only a part of the embodiments of the present invention, instead of all the embodiments;Based on the embodiment of the present invention, originally
Field those of ordinary skill obtained all other embodiment without making creative work, belongs to this hair
Bright protected range.
As shown in Figure 1, Figure 2 and Figure 3, a kind of fluctuating segmentation lane gently inclined medium thick orebody mining provided in an embodiment of the present invention
Method, comprising the following steps:
1) ore body across pitch is divided into wide nugget I, each nugget I is then divided into bar shaped stope along orebody strike
Ⅱ;
2) level haulage gallery 1 is arranged along orebody trend in ore body lower wall, arrange vertical mine every 200m along orebody trend
The level haulage crosscut 2 of body trend;
3) it is open from level haulage gallery 1 and tunnels exploiting field ramp 3;
4) it from exploiting field ramp 3 every the high 20m opening driving segmentation lane connecting taxiway 18 that hangs down, and arranges and is segmented along orebody trend
Tunnel 4, segmentation tunnel use undulated arrangement, become slope every 100m, are respectively that segmentation tunnel is high in corresponding 17 center of studding
Point 4-1 and segmentation tunnel low spot 4-2;
5) from disk on the vertical ore body driving upper layer connection roadway 5-1 to ore body of segmentation tunnel high point 4-1, continue to dig in the direction
Return air connection roadway 10-1 is filled into upper layer is formed, is then tunneled from the upper layer filling end return air connection roadway 10-1 along orebody trend
Upper layer fills air return lane 11-1.Setting upper layer fills return air chamber at away from upper layer filling return air connection roadway 11-1 opening about 80m
12-1, arrangement upper layer fills returnairshaft 13-1 to II top of bar shaped stope in upper layer filling return air chamber 12-1.In addition,
Upper layer connection roadway 5-1 arranges 2 upper layers rock drilling lane 6-1 along orebody trend at 2 II lower walls of bar shaped stope of ore body;
6) from disk on the vertical ore body driving lower layer's connection roadway 5-2 to ore body of segmentation tunnel low spot 4-2, continue to dig in the direction
Return air connection roadway 10-2 is filled into lower layer is formed, is then tunneled from the lower layer filling end return air connection roadway 10-2 along orebody trend
Lower layer fills air return lane 11-2.Setting lower layer fills return air chamber at away from lower layer filling return air connection roadway 11-2 opening about 80m
12-2, arrangement lower layer fills returnairshaft 13-2 to II top of bar shaped stope in lower layer filling return air chamber 12-2.In addition,
Lower layer connection roadway 5-2 arranges 2 lower layer's rock drilling lane 6-2 along orebody trend at 2 II lower walls of bar shaped stope of ore body;
7) release hole chamber 19 is set from the outside of segmentation tunnel low spot 4-2, is let out under release hole chamber 19 to Drilling
Water drilling hole 9 to middle section drains connection roadway 20, and middle section draining connection roadway 20 is communicated with level haulage crosscut 2;
8) ore pass chamber 7-1 in upper layer is set from the outside of segmentation tunnel high point 4-1, ore pass chamber 7-1 is downward on upper layer
Upper ore ore pass 8-1 is tunneled to level haulage crosscut 2;
9) from lower layer connection roadway 5-2 away from lower layer's rock drilling lane 6-2 opening 10m left and right settings lower layer ore pass chamber 7-2, under
Layer ore pass chamber 7-2 tunnels downwards lower layer ore ore pass 8-2 to level haulage crosscut 2;
10) in order to further illustrate the superiority of the mining methods, mining technology is done further now in conjunction with cutting journey is adopted
Explanation.
1. the mining methods stopping sequence is using interval back production, i.e. rapid back production in two steps, a step odd number bar shaped stope
After back production fills, after strength of filling mass meets adjacent ore body back production requirement, the two of neighbouring even-numbered bar shaped stope are carried out
Step actual mining;
2. in bar shaped stope II close to studding 17, using raise boring machine at upper layer rock drilling lane 6-1 (or lower layer rock drilling lane 6-2)
Then the upward Drilling slot raise in top is cut using on long and medium hole drilling trolley Drilling to the progress explosion formation of fan shaped medium length hole 14
Slot is cut, the cutting groove of formation is communicated with upper layer filling returnairshaft 11-1 (or lower layer fills returnairshaft 11-2);
3. long and medium hole drilling trolley parallel cuts are along upper layer rock drilling lane 6-1 (or lower layer's rock drilling using cutting groove as the scope of freedom
Lane 6-2) on Drilling to fan shaped medium length hole 14, explosion by row is carried out using millisecond detonating mode and forms collection mine moat ditch 16, explosion
Ore collect and fall into upper layer rock drilling lane 6-1 (or lower layer rock drilling lane 6-2) by collecting mine moat ditch 16.
For falling into the ore of upper layer rock drilling lane 6-1, scraper is by level haulage gallery 1, exploiting field ramp 3, segmentation
Lane connecting taxiway 18, segmentation tunnel 4, segmentation tunnel high point 4-1, upper layer connection roadway 5-1, upper layer rock drilling lane 6-1 arrival fall mine point.Shovel
Dress falls into the ore of upper layer rock drilling lane 6-1 by upper layer rock drilling lane 6-1, upper layer connection roadway 5-1, segmentation tunnel high point 4-1, upper layer
Ore pass chamber 7-1 pours into upper layer ore pass 8-1.Then scraper falls mine point and upper layer ore pass cave in upper layer rock drilling lane 6-1
The work of reciprocation cycle ore removal is done between the 7-1 of room.
For falling into the ore of lower layer's rock drilling lane 6-2, scraper is by level haulage gallery 1, exploiting field ramp 3, segmentation
Lane connecting taxiway 18, segmentation tunnel 4, segmentation tunnel low spot 4-2, lower layer connection roadway 5-2, lower layer's rock drilling lane 6-2 arrival fall mine point.Shovel
Dress falls into the ore of lower layer's rock drilling lane 6-2 by lower layer's rock drilling lane 6-2, lower layer connection roadway 5-2, lower layer ore pass chamber 7-2,
Enter lower layer ore pass 8-2.Then scraper falls between mine point and lower layer ore pass chamber 7-2 to do and back and forth follow in lower layer's rock drilling lane 6-2
The work of ring ore removal.
4. smoothly stope ventilation is necessary in order to realize Stope safty high winning technology.It is fresh distinguished and admirable to be transported by middle section
Defeated gallery 1, exploiting field ramp 3, segmentation lane connecting taxiway 18, segmentation tunnel 4, upper layer connection roadway 5-1 (or lower layer connection roadway 5-2) into
Enter upper layer rock drilling lane 6-1 (or lower layer rock drilling lane 6-2), then carries the powder in upper layer rock drilling lane 6-1 (or lower layer rock drilling lane 6-2)
Dirt and toxic and harmful gas are by upper layer filling returnairshaft 13-1 (or lower layer fills returnairshaft 13-2), upper layer filling air return lane
11-1 (or lower layer fills air return lane 11-2) and paragraph by paragraph return air avoid waste air series connection into the main lane of return air;
5. smoothly drainage system is necessary in order to realize Stope safty high winning technology.The life of upper layer rock drilling lane 6-1
Fisheries water and obturation drainage are by upper layer connection roadway 5-1, segmentation lane high point 4-1, segmentation lane low spot 4-2 arrival release hole cave
Room 19 transfers sewage to middle section by release hole 9 and drains connection roadway 20, then passes through level haulage crosscut 2 and level haulage
The ditch of gallery 1 is drained to drainage system sump;The industrial water and obturation drainage of lower layer's rock drilling lane 6-2 is got in touch with by lower layer
Lane 5-2, segmentation lane low spot 4-2 reach release hole chamber 19, transfer sewage to middle section by release hole 9 and drain connection roadway
20, then drained by the ditch of level haulage crosscut 2 and level haulage gallery 1 to drainage system sump;;
6. guaranteeing safety work to effectively control stope ground pressure, the rate of extraction is improved, needs to adopt the bar shaped that back production finishes
Field II carries out afterwards filling.Filling counterfort is set first at upper layer rock drilling lane 6-1 (or lower layer rock drilling lane 6-2) both-side opening,
Then by filling pipeline by segmentation tunnel 4, upper layer connection roadway 5-1 (or lower layer connection roadway 5-2), upper layer filling returnairshaft connection
(or lower layer fills air return lane 11- by network lane 10-1 (or upper layer fill returnairshaft connection roadway 10-2), upper layer filling air return lane 11-1
2), upper layer filling return air chamber 12-1 (or lower layer fills return air chamber 12-2) is inserted into upper layer filling returnairshaft 13-1 (under or
Layer filling returnairshaft 13-2), finally cemented filling material is filled toward II dead zone of bar shaped stope, obturation can be with after conserving 28 days
Adjacent stope ore body is exploited, wherein the stope that a step odd number bar shaped stope mining finishes is filled using high intensity obturation 15-1
It fills out, the stope that two step even number bar shaped stope minings finish is filled using low-intensity obturation 15-2.
I width of nugget is 100m.
II width of bar shaped stope is determined as 12.5m according to physical properties of ore & rock.
The exploiting field ramp 3 is to be arranged one every 600m, is responsible for personnel's material installation transport of left and right 300m ore body,
The gradient≤15%.
In undulated, the descending grade gradient and the climbing gradient are equal to 10% in the segmentation tunnel 4.
The segmentation tunnel high point 4-1 and the height difference for being segmented tunnel low spot 4-2 are 10m.
The upper layer connection roadway 5-1 and upper layer filling return air connection roadway 10-1 is in climbing shape, the gradient≤3 ‰ of climbing
Lower layer's connection roadway 5-2 and lower layer filling return air connection roadway 10-2 is in climbing shape, the gradient≤3 ‰ of climbing
The upper layer filling returnairshaft 13-1 and lower layer filling returnairshaft 13-2 are used for the II explosion ventilation of bar shaped stope and heir
After fill.
Release hole 9 in the release hole chamber 19 usually requires setting 2, a preparation and a use.
After the afterwards filling refers to stope mining, filling counterfort is set in the opening of connection stope, is then led to
Over packing returnairshaft carries out Tight filling using cemented filling material.
The present invention is adapted to gently inclined medium thick orebody, is particularly suitable for large-scale modernization deep ground mine.Compared to other mining
Method, which, which adopts, cuts than low, depletion loss rate is low, safe and reliable, stable production capacity, intensive degree are high, passes through
Afterwards filling effectively controls ground pressure, final to realize safe, economic, efficient exploitation.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of fluctuating is segmented lane gently inclined medium thick orebody mining methods, it is characterised in that the following steps are included:
1) ore body across pitch is divided into wide nugget, each nugget is then divided into bar shaped stope along orebody strike, in mine
Body lower wall arranges level haulage gallery along orebody trend, arranges the level haulage of vertical orebody trend every 200m along orebody trend
Crosscut is open from level haulage gallery and tunnels exploiting field ramp;
2) from exploiting field ramp every the high 20m opening driving segmentation lane connecting taxiway that hangs down, and segmentation tunnel is arranged along orebody trend, point
Section tunnel becomes slope using undulated arrangement, every 100m, is respectively to be segmented tunnel high point and divide in corresponding studding central location
Section tunnel low spot;
3) from disk on the vertical ore body driving upper layer connection roadway to ore body of segmentation tunnel high point, and continue the disk direction on ore body and tunnel
It forms upper layer and fills return air connection roadway, then fill return air along orebody trend driving upper layer from upper layer filling return air connection roadway end
Lane, setting upper layer fills return air chamber at away from upper layer filling return air connection roadway opening about 80m, in upper layer filling return air chamber
Arrangement filling return air drills to bar shaped stope, walks at 2 bar shaped stope lower walls of ore body along ore body in upper layer connection roadway
To arrangement 2 upper layers rock drilling lane;
4) from disk on the vertical ore body driving lower layer's connection roadway to ore body of segmentation tunnel low spot, continue driving in the direction and form lower layer
Fill return air connection roadway, then from lower layer filling return air connection roadway end along orebody trend driving lower layer fill air return lane, away from
Lower layer fills setting lower layer at return air connection roadway opening about 80m and fills return air chamber, arranges and fills in lower layer's filling return air chamber
It fills out return air to drill to bar shaped stope, in lower layer's connection roadway along orebody trend arrangement 2 at 2 bar shaped stope lower walls of ore body
Lower layer's rock drilling lane;
5) release hole chamber is set from the outside of segmentation tunnel low spot, to Drilling release hole to middle section under release hole chamber
Connection roadway is drained, draining connection roadway is communicated with level haulage crosscut;
6) ore pass chamber in upper layer is set from the outside of segmentation tunnel high point, ore pass chamber tunnels downwards upper ore and slips on upper layer
Mine is to level haulage crosscut;
7) downward in lower layer's ore pass chamber from lower layer's connection roadway away from rock drilling lane opening 10m left and right settings lower layer ore pass chamber
Lower layer's ore ore pass is tunneled to level haulage crosscut;
8) the bar shaped stope is spaced back production, a step back production odd number bar shaped stope, high-intensitive cemented fill suddenly in two steps
Filling, two step back production even number bar shaped stopes, the filling of low-intensity obturation;
9) stope mining uses medium-length hole ore blast, and broken ore uses scraper ore removal, and goaf is afterwards after back production ore removal
It fills, after the every separate explosion of stope, using non-remote-controlled scraper from rock drilling heading portion ore removal, yield is each broken ore
One third, after stope ore whole avalanche, then using remote-controlled scraper from rock drilling heading portion ore removal, until entirely adopting
Field ore is all complete out.
2. a kind of fluctuating according to claim 1 is segmented lane gently inclined medium thick orebody mining methods, it is characterised in that: described
Nugget width is 100m, and the bar shaped Width of stope needs are determined according to physical properties of ore & rock.
3. a kind of fluctuating according to claim 1 is segmented lane gently inclined medium thick orebody mining methods, it is characterised in that: described
Exploiting field ramp is to be arranged one every 600m, is responsible for personnel's material installation transport of left and right 300m ore body, the gradient≤15%.
4. a kind of fluctuating according to claim 1 is segmented lane gently inclined medium thick orebody mining methods, it is characterised in that: described
Tunnel is segmented in undulated, the descending grade gradient and the climbing gradient are equal to 10%, the segmentation tunnel high point and are segmented tunnel low spot
Height difference be 10m.
5. a kind of fluctuating according to claim 1 is segmented lane gently inclined medium thick orebody mining methods, it is characterised in that: described
Upper layer connection roadway and upper layer filling return air connection roadway are in climbing shape, the gradient≤3 ‰ of climbing, lower layer's connection roadway and lower layer's filling
Return air connection roadway is in climbing shape, the gradient≤3 ‰ of climbing.
6. a kind of fluctuating according to claim 1 is segmented lane gently inclined medium thick orebody mining methods, it is characterised in that: described
The afterwards filling that returnairshaft is used for stope explosion ventilation and stope is filled, the indoor release hole of release hole cave usually needs
It is arranged 2, a preparation and a use.
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