CN105952454A - Open-stoping subsequent backfilling mining method for deep-shaft mines - Google Patents
Open-stoping subsequent backfilling mining method for deep-shaft mines Download PDFInfo
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- CN105952454A CN105952454A CN201610306126.0A CN201610306126A CN105952454A CN 105952454 A CN105952454 A CN 105952454A CN 201610306126 A CN201610306126 A CN 201610306126A CN 105952454 A CN105952454 A CN 105952454A
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
Abstract
The invention discloses an open-stoping subsequent backfilling mining method for deep-shaft mines. The open-stoping subsequent backfilling mining method for the deep-shaft mines comprises steps as follows: A), an ore body is divided into at least one panel, wherein the panel comprises multiple ore blocks distributed in a latticed manner, and multiple ore block rows are arranged in a left-right direction; B), the multiple ore blocks of each ore block row are divided into multiple ore block groups marked in sequence; C), the multiple ore block groups of one ore block row located in the middle are subjected to stoping according to a mark number sequence, and when the Nth ore block group is subjected to stoping, the (N-1)th ore block group is subjected to filling; D), two adjacent ore block rows are subjected to stoping leftwards and rightwards simultaneously according to the step C); E), the step D) is repeated until the stoping of one panel is completed; F), the steps C)-E) are repeated until the stoping of all panels is completed. Therefore, the open-stoping subsequent backfilling mining method for the deep-shaft mines of the embodiment has the advantages of high mining efficiency, high safety, low mining cost and the like.
Description
Technical field
The present invention relates to field of mining, in particular to Deep Shaft Mine in China open stope afterwards filling mining method.
Background technology
Along with the sustainable development of Chinese national economy, increasing to the demand of metallic mineral resources, China's metal mine exploitation
Just carried out strategic shift to deep by superficial part, and mine capacity is gradually increased.And being continuously increased of mining depth, deep mining
The problem such as high-ground stress, High-geotemperature is increasingly severe, and especially high-ground stress likely induces the generation of rock burst, and this will be to ore deposit
The safety on mountain and efficiently production bring challenge greatly.
In deep-well extensive mine resources recovery process, selection of mining, as the basic decision of Mine Project, carries
Extremely important role.And the factor that affects selection of mining is the most more, and many factors are the most all dynamically changes, especially
It is mining under deep-well large ground pressure.If continuing to use tradition large diameter, deep borehole stage open stope afterwards filling mining method
Exploitation, although can meet the high-efficiency mining in panel in theory, but and be unfavorable for the control of crustal stress, safety is brought bigger
Risk, considerably increases the maintenance workload in various tunnel, panel simultaneously, causes steeply rising of cost of winning.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention proposes one
Plant the Deep Shaft Mine in China open stope afterwards filling mining method with the advantage that safety is high, cost of winning is low.
Deep Shaft Mine in China open stope afterwards filling mining method according to the present invention comprises the following steps: be A) at least one by ore body division
Panel, described panel includes the multiple nuggets in latticed layout to form multiple nugget row, and each described nugget row includes
Multiple described nuggets, the multiple described nugget row in the most each described panel arranges in left-right direction, each described nugget row edge
Fore-and-aft direction extends；B) the multiple described nugget of each described nugget row is divided into multiple nugget group, and to multiple described ore deposits
Block group carries out order label；C) the multiple described nugget group of the described nugget row being pointed to middle part according to label order is carried out
Back production, wherein when to when described in n-th, nugget group carries out back production, is filled with N-1 described nugget group；D) according to
Described step C) simultaneously the most to the left and adjacent two the described nugget row of back production to the right；E) repeating said steps D), until one
Described Panel stoping is complete；F) repeating said steps C) to described step E), until whole described Panel stoping is complete.
It addition, Deep Shaft Mine in China open stope afterwards filling mining method according to the above embodiment of the present invention can also have following additional
Technical characteristic:
According to one embodiment of present invention, the multiple described nugget of each described nugget row in each described panel is according to identical
Model split be multiple described nugget groups.
According to one embodiment of present invention, the multiple described nugget of each described nugget row is divided into the first nugget group to
Four nugget groups, described first nugget group to each in described 4th nugget group includes multiple described nugget, wherein said the
The multiple described nugget of one nugget group is arranged alternately with the multiple described nugget of described 3rd nugget group, described second nugget group
Multiple described nuggets are arranged alternately with the multiple described nugget of described 4th nugget group, and a part for described second nugget group is positioned at
Described first nugget group and the front of described 3rd nugget group and remainder are positioned at described first nugget group and described 3rd nugget
Group rear, a part for described 4th nugget group be positioned at described first nugget group and the front of described 3rd nugget group and remaining
Part is positioned at described first nugget group and the rear of described 3rd nugget group.
According to one embodiment of present invention, each described nugget of described first nugget group and described second nugget group is each
Described nugget is arranged at interval.
According to one embodiment of present invention, each described nugget of described 3rd nugget group is positioned at the phase of described first nugget group
Between adjacent two described nuggets.
According to one embodiment of present invention, the described nugget being positioned at forefront of each described nugget row is described second nugget
The described nugget of group, the described nugget that the described nugget being positioned at rearmost is described 4th nugget group of each described nugget row.
According to one embodiment of present invention, the multiple described nugget of the described nugget group of back production simultaneously.
According to one embodiment of present invention, the multiple described nugget behavior odd number in described panel, described step C) do not return
Multiple described the most described step C of nugget row adopted) the described nugget row of back production is symmetrical.
According to one embodiment of present invention, each described nugget is rectangular-shaped.
According to one embodiment of present invention, bar shaped ore pillar is arranged along biggest principal stress direction between adjacent two described panels.
Accompanying drawing explanation
Fig. 1 is the flow chart of Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention；
Fig. 2 is the structural representation of ore body according to embodiments of the present invention.
Reference:
Ore body 1, panel 10, nugget row 101, nugget 1011,
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to accompanying drawing
The embodiment described is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention is described.Such as Fig. 1 and Fig. 2
Shown in, Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention comprises the following steps:
A) ore body 1 is divided at least one panel 10, panel 10 include the multiple nuggets 1011 in latticed layout so that
Forming multiple nugget row 101, each nugget row 101 includes multiple nugget 1011.In other words, each panel 10 includes multiple
Nugget row 101 and multiple nugget row.Multiple nugget row 101 in each panel 10 arrange in left-right direction, each nugget row
101 extend along the longitudinal direction.
It is to say, a left side being positioned at another in adjacent two nugget row 101 in each panel 10 or right side.Often
This nugget row in individual panel 10 extend in left-right direction.Wherein, left and right directions as shown by the arrow a in fig. 2, fore-and-aft direction
As shown in the arrow B in Fig. 2.
B) multiple nuggets 1011 of each nugget row 101 are divided into multiple nugget group, and these nugget groups multiple are carried out suitable
Sequence label.Such as, the first nugget group, the second nugget group, the 3rd nugget group etc., as shown in Figure 2.
C) these nugget groups multiple of the nugget row 101 being pointed to middle part according to this label order carry out back production, wherein when right
When this nugget group of n-th carries out back production, N-1 this nugget group is filled with.Such as, when to the 2nd this nugget group
When (the second nugget group) carries out back production, the 1st this nugget group (the first nugget group) is filled with.
D) according to this step C) simultaneously the most to the left and adjacent two the nugget row 101 of back production to the right；
E) this step D is repeated), until panel 10 back production is complete；
F) this step C is repeated) to this step E), until all panel 10 back production is complete.
Deep Shaft Mine in China open stope afterwards filling mining method elder generation back production according to embodiments of the present invention is positioned at a nugget row 101 at middle part,
Then the nugget row 101 of simultaneously the most to the left and to the right back production both sides.Therefore, Deep Shaft Mine in China barnyard heir according to embodiments of the present invention
The rear method of mining by the way of filling is drawing back method.
Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention includes in latticed layout by making panel 10
Multiple nuggets 1011 and employing drawing back, the secondary stress causing exploitation to cause progressively is transferred to the stable ore deposit that both sides are not adopted
On body, finally it is transferred to the ore pillar of both sides, panel 10, beneficially stope crustal stress and controls, ensure operating personnel, the peace of equipment
Entirely, rock drilling, ore removal route maintenance cost can be reduced simultaneously.
And, use drawing back can avoid the formation of isolated island nugget 1011, it is to avoid the secondary stress that exploitation causes is concentrated,
Reduce the back production depletion loss of ore body 1 simultaneously.Compared with existing large diameter, deep borehole stage open stope afterwards filling mining method, root
Can avoid digging in obturator when two step stooping pillarings according to the Deep Shaft Mine in China open stope afterwards filling mining method of the embodiment of the present invention
Enter discharging tunnel, such that it is able to ten thousand tons that reduce the Ore in panel 10 are adopted and cut ratio, and then save mining production cost.
Therefore, Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention have that production efficiency is high, safety high,
The advantages such as cost of winning is low.
The urgency that Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention is suitable for exploiting ore body and country rock firm is inclined
In tiltedly, thickness is to extremely thick ore body, meets the requirement of deep-well large scale mining.
For the ease of Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention is described, below with ore body 1
Each panel 10 include five nugget row 101 (representing respectively) with G, H, I, J, L as a example by be described.
As depicted in figs. 1 and 2, according to the Deep Shaft Mine in China open stope afterwards filling mining method of some embodiments of the present invention include with
Lower step:
A) ore body 1 is divided into multiple panel 10, between adjacent two panels 10, arranges bar shaped ore deposit along biggest principal stress direction
Post.Panel 10 includes multiple nuggets 1011 of in latticed layout (i.e. checkerboard type layout) to form five nugget row 101,
Each nugget row 101 includes multiple nugget 1011.Five nugget row 101 in each panel 10 arrange, often in left-right direction
Individual nugget row 101 extends along the longitudinal direction.
Specifically, each nugget 1011 is rectangular-shaped.Each nugget 1011 is that four limits are equal or of substantially equal in the plane
Square, this foursquare length of side is usually 20 meters to 40 meters, can be unrestricted on the height of each nugget 1011,
Generally at 40 meters to 100 meters.Bottom can be the different structure type meeting ore removal equipment ore removal.
Advantageously, I nugget row 101 is centrally located, and G nugget row 101 and H nugget row 101 is positioned at I nugget row 101
Left side, J nugget row 101 and L nugget row 101 is positioned at the right side of I nugget row 101.G nugget row 101 and H nugget row
101 is symmetrical with J nugget row 101 and L nugget row 101 relative I nugget row 101, H nugget row 101 and J nugget row 101
I nugget row 101 relatively is symmetrical, and G nugget row 101 I nugget row 101 relative with L nugget row 101 is symmetrical.
It is to say, multiple nugget row 101 in each panel 10 are odd number, this step C) multiple nugget row of non-back production
101 these steps C relative) the nugget row 101 of back production is symmetrical.
B) multiple nuggets 1011 of each nugget row 101 are divided into four nugget groups, and these nugget groups multiple are carried out suitable
Sequence label.In other words, multiple nuggets 1011 of each nugget row 101 are divided into the first nugget group, the second nugget group,
Three nugget groups and the 4th nugget group.Wherein, in fig. 2, indicate the nugget 1011 of this first nugget group by numeral one, use number
Word two indicates the nugget 1011 of this second piece group, indicates the nugget 1011 of the 3rd piece of group by numeral three, and indicating by numeral four should
The nugget 1011 of the 4th piece of group.
As in figure 2 it is shown, in one embodiment of the invention, multiple nuggets 1011 of each nugget row 101 in each panel 10
It is divided into this nugget group multiple in the same fashion.It is to say, multiple nuggets 1011 of this nugget each row are respectively many
The nugget 1011 belonging to same nugget group of individual nugget row 101.Such as, as in figure 2 it is shown, be positioned at the nugget row of forefront
The nugget 1011 of five nugget 1011 respectively the second nugget groups of these five nugget row 101.
In some examples of the present invention, as in figure 2 it is shown, this first nugget group, this second nugget group, the 3rd nugget group
Multiple nugget 1011 is included with each in the 4th nugget group.
Wherein, multiple nuggets 1011 of this first nugget group are arranged alternately with multiple nuggets 1011 of the 3rd nugget group, should
Multiple nuggets 1011 of the second nugget group are arranged alternately with multiple nuggets 1011 of the 4th nugget group.This second nugget group
A part is positioned at the front of this first nugget group and the 3rd nugget group, and the remainder of this second nugget group is positioned at this first ore deposit
Block group and the rear of the 3rd nugget group.A part for 4th nugget group is positioned at this first nugget group and the 3rd nugget group
Front, the remainder of the 4th nugget group is positioned at the rear of this first nugget group and the 3rd nugget group.Thus can make dish
The structure in district 10 is more reasonable.
As in figure 2 it is shown, advantageously, each nugget 1011 of this first nugget group and each nugget 1011 of this second nugget group
Arrange at interval.The structure that thus can make panel 10 is more reasonable, it is to avoid tunnel ore removal or drilling drift in obturator,
Ensure that rock drilling, back production and packing job do not disturb.Such as, as in figure 2 it is shown, the nugget of this adjacent the first nugget group
The nugget 1011 of the 4th nugget group it is provided with between 1011 and the nugget 1011 of this second nugget group.
In an example of the present invention, as in figure 2 it is shown, each nugget 1011 of the 3rd nugget group is positioned at this first nugget
Between adjacent two nuggets 1011 of group.The structure that thus can make panel 10 is more reasonable, it is to avoid tunnel in obturator
Ore removal or drilling drift, it is ensured that rock drilling, back production and packing job do not disturb.
As in figure 2 it is shown, advantageously, the ore deposit that nugget 1011 is this second nugget group being positioned at forefront of each nugget row 101
Block 1011, the nugget 1011 that nugget 1011 is the 4th nugget group being positioned at rearmost of each nugget row 101.Thus may be used
So that the structure in panel 10 is more reasonable, it is to avoid tunnel ore removal or drilling drift in obturator, it is ensured that rock drilling, back production and fill
Fill out operation not disturb.
In a concrete example of the present invention, multiple nuggets 1011 of one this nugget group of back production simultaneously.Thus can improve
Production capacity.
Specifically, in order to ensure the production capacity in panel 10,3-4 the nugget 1011 of this nugget group same can be arranged
Ore removal simultaneously.Meanwhile, in order to avoid the filling impact on producing, multiple nuggets 1011 of this nugget group same use interval cloth
Put.
Total stopping sequence is defined as elder generation's (i.e. first back production I nugget row 101) from the beginning of the centre in panel 10 and draws in " one " word
Again to both sides ore pillar drawing back after opening.The concrete back production step of I nugget row 101 is: this first nugget of (1) first back production
Whole nuggets 1011 (i.e. one step stope) of group；(2) after treating whole nuggets 1011 back production of this first nugget group,
Whole nuggets 1011 (two step stopes), the simultaneously whole nuggets 1011 to this first nugget group of this second nugget group of back production
Carry out filling operation；(3) after treating whole nuggets 1011 back production of this second nugget group, back production the 3rd nugget group complete
Whole nuggets 1011 of this second nugget group are carried out filling operation by portion's nugget 1011 (three step stopes) simultaneously；(4) treat
After whole nuggets 1011 back production of the 3rd nugget group, whole nuggets 1011 (four steps of back production the 4th nugget group
Stope), whole nuggets 1011 of the 3rd nugget group are carried out filling operation simultaneously.
Wherein, the surrounding of this step stope and this two steps stope is nugget 1011, and this three steps stope and this four step are adopted
The surrounding of field is containing obturator.
C) according to this label order, these nugget groups multiple of I nugget row 101 are carried out back production.As it has been described above, when to n-th
When this nugget group carries out back production, N-1 this nugget group is filled with.
D) after treating I nugget row 101 back production, according to this step C) simultaneously the most to the left and to the right back production H nugget row 101 He
J nugget row 101；
E) this step D is repeated), i.e. according to this step C) simultaneously the most to the left and to the right back production G nugget row 101 and L nugget row 101,
So far panel 10 back production is complete；
F) this step C is repeated) to this step E), until all panel 10 back production is complete.
Deep Shaft Mine in China open stope afterwards filling mining method according to embodiments of the present invention has the following characteristics that
(1) using checkerboard type to arrange drawing back, stope uses square nugget 1011 to arrange, beneficially stope crustal stress
Control, ensure operating personnel, the safety of equipment, reduce rock drilling, ore removal route maintenance cost simultaneously；
(2) use drawing back in panel 10, the formation of isolated island nugget 1011 can be avoided, it is to avoid the secondary that exploitation causes
Stress is concentrated, and reduces ore body 1 back production depletion loss simultaneously.
(3) use drawing back in panel 10, tradition large diameter, deep borehole stage open stope afterwards filling mining method can be avoided to exist
In obturator, tunnel discharging tunnel during two step stooping pillarings, adopt for ten thousand tons of reduction panel 10 Ore and cut ratio, and then save mining
Production cost.
(4) using mechanical mining, mining efficiency is high, and production capacity of mining field is big, and ventilation condition is good, and ore recovery ratio is high,
The rate of dilution is low.
(5) chess and card formula arranges that process for stoping is relative complex, and back production cycle period is longer, has higher to field management level
Requirement.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ",
" outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " etc. instruction orientation or position relationship be based on
Orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or hint institute
The device that refers to or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
Bright restriction.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed
Or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing "
Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For
For those of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can
Being that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, the
One feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or
Oblique upper, or it is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ",
" lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or it is special to be merely representative of first
Levy level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or
Feature is contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term
Necessarily it is directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, ability
The feature of the different embodiments described in this specification or example and different embodiment or example can be entered by the technical staff in territory
Row combines and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (10)
1. a Deep Shaft Mine in China open stope afterwards filling mining method, it is characterised in that comprise the following steps:
A) being at least one panel by ore body division, described panel includes the multiple nuggets in latticed layout to be formed multiple
Nugget row, each described nugget row includes multiple described nugget, and the multiple described nugget row in the most each described panel is along left and right
Direction arranges, and each described nugget row extends along the longitudinal direction；
B) the multiple described nugget of each described nugget row is divided into multiple nugget group, and multiple described nugget groups are carried out suitable
Sequence label；
C) the multiple described nugget group of the described nugget row being pointed to middle part according to label order carries out back production, wherein when right
When described in n-th, nugget group carries out back production, N-1 described nugget group is filled with；
D) according to described step C) simultaneously the most to the left and adjacent two the described nugget row of back production to the right；
E) repeating said steps D), until a described Panel stoping is complete；
F) repeating said steps C) to described step E), until whole described Panel stoping is complete.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 1, it is characterised in that each described panel
The multiple described nugget of each described nugget row be divided into multiple described nugget group in the same fashion.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 2, it is characterised in that by each described ore deposit
The multiple described nugget of block row is divided into the first nugget group to the 4th nugget group, described first nugget group to described 4th nugget group
In each include multiple described nugget, the multiple described nugget of wherein said first nugget group and described 3rd nugget group
Multiple described nuggets are arranged alternately, the multiple described nugget of described second nugget group and the multiple described ore deposit of described 4th nugget group
Block is arranged alternately, a part for described second nugget group be positioned at described first nugget group and the front of described 3rd nugget group and its
Remaining part is divided and is positioned at described first nugget group and the rear of described 3rd nugget group, and a part for described 4th nugget group is positioned at described
First nugget group and the front of described 3rd nugget group and remainder are positioned at described first nugget group and described 3rd nugget group
Rear.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 3, it is characterised in that described first nugget
The each described nugget of group is arranged at interval with each described nugget of described second nugget group.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 4, it is characterised in that described 3rd nugget
The each described nugget of group is between adjacent two described nuggets of described first nugget group.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 5, it is characterised in that each described nugget
Row the described nugget that the described nugget being positioned at forefront is described second nugget group, each described nugget row be positioned at rearmost
The described nugget that described nugget is described 4th nugget group.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 2, it is characterised in that back production simultaneously
The multiple described nugget of described nugget group.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 1, it is characterised in that described panel is many
Individual described nugget behavior odd number, described step C) multiple described the most described step C of nugget row of non-back production) institute of back production
State nugget row symmetrical.
Deep Shaft Mine in China open stope afterwards filling mining method the most according to claim 1, it is characterised in that each described nugget
For rectangular-shaped.
10. according to the Deep Shaft Mine in China open stope afterwards filling mining method according to any one of claim 1-9, it is characterised in that
Bar shaped ore pillar is arranged along biggest principal stress direction between adjacent two described panels.
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| CN201610306126.0A CN105952454B (en) | 2016-05-10 | 2016-05-10 | Deep Shaft Mine in China open stope afterwards filling mining method |
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| CN105952454B CN105952454B (en) | 2017-12-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661645A (en) * | 2018-03-29 | 2018-10-16 | 安徽马钢张庄矿业有限责任公司 | The method of end lean ore body back production |
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