CN109882173A - Big thick ore body vertically Two step mining stope filling system and placement method - Google Patents
Big thick ore body vertically Two step mining stope filling system and placement method Download PDFInfo
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- CN109882173A CN109882173A CN201910362404.8A CN201910362404A CN109882173A CN 109882173 A CN109882173 A CN 109882173A CN 201910362404 A CN201910362404 A CN 201910362404A CN 109882173 A CN109882173 A CN 109882173A
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Abstract
The invention discloses a kind of big thick ore body vertically Two step mining stope filling system and fill methods, it is arranged with the filling for being connected to upper disk stowboard and lower wall haulage drift in each ore body and obturation and wears arteries and veins, each filling wears arteries and veins and passes through several filling connecting taxiways to be connected to goaf, in upper disk stowboard, filling wears in arteries and veins and filling connecting taxiway and is equipped with the filling pipeline being sequentially communicated, filling is worn the filling pipeline in arteries and veins and is connected to by separating brake valve with the filling pipeline in upper disk stowboard, filling pipeline in filling connecting taxiway is connected to goaf, a step stope filling barricade is equipped in the intracorporal filling connecting taxiway of mine, it is worn in the filling of obturation and ore-rock line of demarcation intersection and is equipped with two step stope filling barricades in arteries and veins.The present invention can be realized long and narrow Large Size Stope slurry multiple spot blanking, solves the problems, such as that the oblique heap advection molding of stope slurry is poor, isolation layering is serious, ponding discharge is difficult, connects and push up that effect is poor, Quality of filling body is low.
Description
Technical field
The invention belongs to mine fields, and in particular to a kind of big thick ore body vertically Two step mining stope filling system
System and placement method.
Background technique
Mineral resources are material bases for the survival of mankind, are the important guarantees of national security and economic development.According to system
Meter, the capital goods in the agricultural sector of 95% or more the energy of China, 80% or more industrial raw materials and 70% or more are taken from mineral products
Resource.There is no the supply that mineral resources are continual and steady, just without the development of China's modern economy and society.However, increasing mine
While producing development of resources dynamics, mine safety and environmental protection face great challenge.Underground mining is the master of mining mineral resource
Mode is wanted, ore body, if being filled not in time, will lead to goaf and collapse, or even cause ground by forming goaf after exploitation
Table is deformed or is collapsed, and construction of structures is caused to collapse, and earth's surface forms Collapse Pit, is threatened people to keep the safety in production and is lived, and ecological ring is destroyed
Border.Ore will form tailings waste after being sorted processing, and to Tailings Dam, Tailings Dam, which is one, has high potential energy for a large amount of stockpilings
Artificial " mud-rock flow " potential danger source, once dam break, the dynamics of destruction will be bigger than storm flood mud-rock flow, also will be raw to the people
Life property brings more heavy disaster.Therefore, subterranean deposit exploitation generally will form " useless two evil ", and " one is useless " i.e. tailings is useless
Gurry, " two evils " i.e. goaf collapse and are squashed disaster with Tailings Dam.
The tailings that mine generates can be prepared into after slurry and be fills up to goaf by the method for mining by the way of filling, on the one hand reduce or disappear
Except earth's surface tailings impoundment, country rock displacement is controlled after one side goaf filling, can effectively solve the problem that mine resources are opened
Contradiction between sending out and being safe and environment-friendly.
For big thick ore body generally using the stage open stope afterwards filling Two step mining mode of vertical orebody trend arrangement.
Due to stope vertical orebody trend arrangement, mineral building and ore pillar length of stope are generally orebody thickness, small then 15m~20m, greatly
Then 100m~150m.With the progress of filling technique, high dense fill or paste body filling are increasingly promoted and applied.Due to pulp density
Higher, mobility substantially meets pipeline requirement, but the flow distance in stope is limited, or even can be flowed due to long range
And cause isolation, layering.On the one hand strength of filling mass is seriously affected, on the other hand accumulation slope easy to form and a large amount of ponding,
Cause stope connect top effect it is poor, effective support and control cannot be provided for roof rock.Two step of big thick ore body is returned at present
Stope, especially extremely thick ore body Two step mining length of stope are up to 80m~100m, the main filling lane by disk on ore body
Road to goaf arrange a filling connecting taxiway (or as drilling chamber return air connecting taxiway), slurry generally can only single-point blanking,
Problem more than inevitably facing.
Summary of the invention
The purpose of the present invention is to solve the shortcomings of the prior art place, a kind of achievable multiple spot blanking is provided, stope connects
Push up the good big thick ore body of effect vertically Two step mining stope filling system and placement method.
This big thick ore body provided by the invention vertically Two step mining stope filling system, including be arranged in and adopt
Lower wall haulage drift in armor rock, the upper disk stowboard in upper armor rock off field, the stope include a step stope and
Two step stopes, a step stope two sides are ore body, and two step stope two sides are obturation, in each ore body and obturation
It is disposed with the filling for being connected to upper disk stowboard and lower wall haulage drift and wears arteries and veins, each filling wears arteries and veins and passes through several filling connection
Network road is connected to goaf, is worn in arteries and veins and filling connecting taxiway in upper disk stowboard, filling and is equipped with the filling pipe being sequentially communicated
Road, filling are worn the filling pipeline in arteries and veins and are connected to by separating brake valve with the filling pipeline in upper disk stowboard, and filling contact is located at
Filling pipeline in road is connected to goaf, and a step stope filling barricade is equipped in the intracorporal filling connecting taxiway of mine, is being filled
The filling for filling out body and ore-rock line of demarcation intersection is worn in arteries and veins equipped with two step stope filling barricades.
For the excavation work amount for reducing drilling chamber, the filling being arranged in ore body wears arteries and veins and is located at stope drilling chamber water
It is flat.
For the excavation work amount for reducing drilling chamber, the filling being arranged in obturation wears arteries and veins and is located at stope drilling chamber water
It is flat.
For the excavation work amount for reducing drilling chamber, drilling chamber connecting taxiway is equipped in armor rock on two step stopes,
The drilling chamber connecting taxiway is worn arteries and veins by being arranged in the filling on ore body in armor rock and is formed.
To meet single-point blanking slurry flow distance, the distance between two neighbouring filling connecting taxiways is 60m~80m.
Upper disk stowboard wears filling pipeline in arteries and veins with filling, arteries and veins is worn in filling and the filling pipeline in filling connecting taxiway is equal
It is connected to by tee tube, separating brake valve is mounted on disk stowboard and filling is worn on the tee tube of arteries and veins connectivity part.
Several main gate valves are equipped on the filling pipeline in upper disk stowboard, the one-to-one cloth of arteries and veins is worn in each main gate valve and filling
It sets.
Filling provided by the invention suitable for above-mentioned big thick ore body vertically Two step mining stope filling system
Method, it is characterised in that the following steps are included:
S1, quasi- engineering is adopted
Filling is completed in each ore body and obturation to wear arteries and veins and fill the excavation of connecting taxiway, in upper disk stowboard, is filled
Fill out the installation worn arteries and veins and fill the laying and separating brake valve of completing filling pipeline in connecting taxiway；
S2, separating brake valve is opened, slurry successively wears arteries and veins through upper disk stowboard, filling and fills the filling pipeline in connecting taxiway
Goaf is flowed to, carries out multiple spot blanking filling, multiple spot blanking filling includes following two mode:
S21, same filling are worn arteries and veins and are connected at least through two filling connecting taxiways with goaf, and point of stope side is first opened
Gate valve, slurry flow to goaf from the filling pipeline of the side, and each charging quantity is according to goaf volume size and filling slurry stream
Amount is in 3000m3~4000m3Between be adjusted；The separating brake valve of the same stope other side, filling pipeline of the slurry from two sides are opened again
Goaf is flowed to together, is carried out multiple spot blanking in turn and is filled；
S22, the separating brake valve for opening simultaneously same stope two sides, slurry synchronize from the filling pipeline of two sides and flow to goaf,
Carry out circulating type multiple spot blanking filling；
S3, building filling counterfort
S31, when the packed height of slurry in a step stope reach filling connecting taxiway bottom plate below 0.8m~1m when, close
The separating brake valve of the one step stope two sides stops filling, constructs a step stope close to mined out zone position in filling connecting taxiway and fills
Fill out barricade；
S32, when the packed height of slurry in two step stopes reach filling connecting taxiway bottom plate below 0.8m~1m when, close
The separating brake valve of the two steps stope two sides stops filling, wears in the filling of obturation boundary and constructs two step stopes in arteries and veins and fill
Fill out barricade；
S4, step S2 and S3 are repeated, realizes that goaf connects top
S41, when in S31 a step stope filling barrier wall structure stablize after, repeat step S2 and S31, continue to a step
Rapid stope carries out multiple spot blanking filling, realizes that a step stope goaf connects top；
S42, when in S32 two step stope filling barrier wall structures stablize after, repeat step S2 and S32, continue to two steps
Rapid stope carries out multiple spot blanking filling, until two step stopes and filling wear and be completely filled with slurry in arteries and veins, realizes two step stopes
Goaf connects top.
In step sl, obturation at least conserves 28 days and uniaxial compressive strength is not less than 2.0MPa.
The present invention is by the way that arteries and veins is worn in arrangement filling in stope two sides ore body and the obturation that maintenance is completed and filling is got in touch with
Road fills goaf using at least two filling connecting taxiways, realizes multiple spot blanking；By constructing a step stope filling
Barricade and two step stope filling barricades realize that goaf high efficiency connects top by slurry barrier in stope to be filled.This hair
Bright to can be realized long and narrow Large Size Stope slurry multiple spot blanking, the oblique heap advection molding of solution stope slurry is poor, isolation layering is serious, long-pending
Water discharge is difficult, connects the top problem that effect is poor, Quality of filling body is low.
Detailed description of the invention
Fig. 1 is Two step mining stope filling system plane of arrangement figure in the present invention.
Fig. 2 is schematic cross-sectional view at A-A in Fig. 1.
Label and corresponding component name shown in figure are as follows:
1, a step stope；2, ore body；3, two step stope；4, obturation；5, lower wall haulage drift；6, upper disk fills lane
Road；7, arteries and veins is worn in filling；8, connecting taxiway is filled；9, filling pipeline；10, three-way pipeline；11, control slurry leads to point that arteries and veins is worn in filling
Gate valve；12, upper disk stowboard main pipeline gate valve；13, a step stope filling barricade；14, two step stope filling barricade.
Specific embodiment
It can be seen that this big thick ore body of the present invention vertically Two step mining stope filling system from Fig. 1 and Fig. 2
Arteries and veins 7, filling connecting taxiway 8, filling pipeline 9, separating brake valve 11, a step stope filling barricade 13 and two steps are worn in system, including filling
Stope filling barricade 14, stope include a step stope 1 and two step stopes 3 for vertical orebody trend arrangement, a step stope 1
Two sides are ore body 2, and it is lower wall haulage drift in stope lower wall country rock that two step stopes, 3 two sides, which are the obturation 4 that maintenance is completed,
5, it in armor rock is upper disk stowboard 6 on stope,
Filling is worn arteries and veins 7 and is arranged in each ore body 2 and obturation 4, filling wear 7 upper end of arteries and veins be connected to upper disk stowboard 6, under
End is connected to lower wall haulage drift 5, is filled in each ore body 2 of connecting taxiway 8 and obturation 4, and arteries and veins is worn in filling 8 one end of connecting taxiway and filling
7 connections, one end are connected to goaf, and filling pipeline 9 is laid on disk stowboard 6, arteries and veins 7 is worn in filling and fills in connecting taxiway 8,
Filling pipeline 9 in filling connecting taxiway 8, which protrudes into inside goaf and goaf, to be connected to, the filling in upper disk stowboard 6
Pipeline 9 is worn the filling pipeline 9 in arteries and veins 7 with filling by tee tube 10 and is connected to, and fills the filling pipeline 9 worn in arteries and veins 7 and passes through threeway
Pipe 10 is connected to the filling pipeline 9 in filling connecting taxiway 8, and separating brake valve 11 is mounted on the upper disk stowboard 6 of connection and wears arteries and veins 7 with filling
On the tee tube 10 of interior filling pipeline 9, a step stope filling barricade 13 is located in the filling connecting taxiway 8 in ore body 2 and close
Goaf arrangement, two step stope filling barricades 14 are located at obturation 4 and the filling of ore-rock line of demarcation intersection is worn in arteries and veins 7.
In the present invention, the filling being arranged in 1 two sides ore body 2 of a step stope wears arteries and veins 7 and is located at stope drilling chamber water
It is flat, it can be used as two step stope drilling chamber development headings, it is replica selection that driving, which shovels out ore,.
In the present invention, the drilling chamber connecting taxiway being arranged in armor rock on two step stopes 13 can directly be set using original cloth
The formation of arteries and veins 7 is worn in the filling on 1 two sides ore body 2 of a step stope in armor rock, is not required to increase excavation work amount, increases project amount newly
It is small.
In the present invention, it is arranged in the filling that two step stopes, 3 two sides are completed in the obturation 4 of maintenance and wears arteries and veins 7 and be located at
Former 1 stope drilling chamber of a step stope is horizontal, it is desirable that the obturation 4 of drilling chamber level at least conserves 28 days and uniaxial compressive
Intensity is not less than 2.0MPa.
In the present invention, to meet single-point blanking slurry mobility, the position of neighbouring two fillings connecting taxiway 8 and
Quantity determines that the distance between two neighbouring filling connecting taxiways 8 is 60m~80m according to stope long axis direction length.
In the present invention, several main gate valves 12, each main gate valve 12 are equipped on the filling pipeline 9 in upper disk stowboard 6
The one-to-one arrangement of arteries and veins 7 is worn with filling.
It can be seen that the present invention is this to be suitable for above-mentioned big thick ore body vertically Two step mining in conjunction with Fig. 1 and Fig. 2
The placement method of stope filling system, ore body average thickness 130m are afterwards filled using the stage open stope that vertical orebody trend is arranged
It fills out Two step mining method to be exploited, the height of a step stope 1 and two step stopes 3 is that 60m, width 20m, length are
130m belongs to sleeve configuration Large Size Stope, and 1 two sides of a step stope are ore body 2, and two step stopes, 3 two sides are that maintenance is completed
Obturation 4, Bottom of Stope are lower wall haulage drift 5, are upper disk stowboard 6 at the top of stope, comprising the following steps:
S1, quasi- engineering is adopted
In 1 two sides ore body 2 of a step stope, it is respectively arranged a filling and wears arteries and veins 7, wear arteries and veins 7 in filling and adopted with a step
2 filling connecting taxiways 8 are arranged in ore body 2 between field 1；According to length of stope and slurry flow distance, first filling contact
The disk end 30m on stope of road 8, Article 2 fill connecting taxiway 8 and first filling connecting taxiway 8 at a distance of 70m, Article 2 filling
Connecting taxiway 8 and stope lower wall threshold value about 30m；
In the obturation 4 that maintenance is completed in two step stopes, 3 two sides, it is respectively arranged a filling and wears arteries and veins 7, worn in filling
2 filling connecting taxiways 8 are arranged between arteries and veins 7 and two step stopes 3；According to length of stope and slurry flow distance, first filling
The disk end 30m on stope of connecting taxiway 8, Article 2 fill connecting taxiway 8 and first filling connecting taxiway 8 at a distance of 70m, Article 2
Fill connecting taxiway 8 and stope lower wall threshold value about 30m；
Arteries and veins 7 is worn in upper disk stowboard 6, filling and fills the laying of completion filling pipeline 9 and tee tube in connecting taxiway 8
10, the installation of separating brake valve 11, main gate valve 12；
The separating brake valve 11 that S2, opening are connected to stope to be filled, slurry successively wear 7 and of arteries and veins through upper disk stowboard 6, filling
Filling pipeline 9 in filling connecting taxiway 8 flows to goaf, carries out multiple spot blanking filling, and multiple spot blanking filling includes following two
Mode:
S21, the separating brake valve 11 for first opening stope side to be filled, slurry flow to goaf from the filling pipeline 9 of the side, to
Ground paste filling amount reaches 4000m3Afterwards, the separating brake valve 11 of the stope other side to be filled, filling pipe of the slurry from two sides are opened then
Road 9 flows to goaf together, carries out multiple spot blanking in turn and fills；
S22, the separating brake valve 11 for opening simultaneously stope two sides to be filled, slurry are adopted from the synchronous flow direction of the filling pipeline 9 of two sides
Dead zone carries out circulating type multiple spot blanking filling；
S3, building filling counterfort
S31, when the packed height of slurry in a step stope 1 reach filling connecting taxiway bottom plate below 0.8m~1m when, close
The separating brake valve 11 of 1 two sides of step stope is closed, filling is stopped, constructing a step close to mined out zone position in filling connecting taxiway 8
Stope filling barricade 13；
S32, when the packed height of slurry in two step stopes 3 reach filling connecting taxiway bottom plate below 0.8m~1m when, close
The separating brake valve 11 of two steps stope, 3 two sides is closed, stops filling, is worn in the filling of 4 boundary of obturation and construct two steps in arteries and veins 7
Stope filling barricade 14；
S4, step S2 and S3 are repeated, realizes that goaf connects top
S41, after step stope filling 13 stable structure of barricade in S31, repeat step S2 and S31, continue to one
Step stope 1 carries out multiple spot blanking filling, realizes that a step stope goaf connects top；
S42, after two step stope filling 14 stable structure of barricade in S32, repeat step S2 and S32, continue to two
Step stope 3 carries out multiple spot blanking filling, until two step stopes 3 and filling wear and be completely filled with slurry in arteries and veins 7, realizes two steps
Stope goaf connects top.
In the present invention, the filling of slurry is carried out by distal end to the proximal end of filling pipeline 9 in goaf, when adopting for distal side
After Filling mine-out area, the main gate valve 12 on the filling pipeline 9 on the side of distal end in disk stowboard 6 is closed, makes slurry by filling
It fills out to wear arteries and veins 7 and fill connecting taxiway 8 and flows to stope to be filled.
In step S2 of the present invention, when arteries and veins 7 is worn in filling only to be passed through a filling connecting taxiway 8 with goaf and be connected to, need same
When open the separating brake valves 11 of stope two sides to be filled, synchronize slurry from the filling pipeline 9 of two sides and flow to goaf, carry out circular
Formula multiple spot blanking filling.
Claims (9)
1. a kind of big thick ore body vertically Two step mining stope filling system, including being arranged in stope lower wall country rock
Upper disk stowboard (6) in lower wall haulage drift (5), upper armor rock, the stope include a step stope (1) and two steps
Stope (3) is ore body (2) in a step stope two sides, is the obturation (4) that maintenance is completed in two step stope two sides,
It is characterized in that: being arranged with the filling for being connected to upper disk stowboard and lower wall haulage drift in each ore body and obturation
Arteries and veins (7) are worn, each filling wears arteries and veins and passes through several filling connecting taxiways (8) to be connected to goaf, in upper disk stowboard, is filled and is worn arteries and veins
And the filling pipeline (9) being sequentially communicated is equipped in filling connecting taxiway, filling wears the filling pipeline in arteries and veins and passes through separating brake valve (11)
It is connected to the filling pipeline in upper disk stowboard, the filling pipeline in filling connecting taxiway is connected to goaf, in ore body
It is equipped with a step stope filling barricade (13) in interior filling connecting taxiway, is worn in obturation and the filling of ore-rock line of demarcation intersection
Two step stope filling barricades (14) are equipped in arteries and veins.
2. big thick ore body according to claim 1 vertically Two step mining stope filling system, it is characterised in that:
The filling being arranged in ore body wears arteries and veins and is located at stope drilling chamber level.
3. big thick ore body according to claim 1 vertically Two step mining stope filling system, it is characterised in that:
The filling being arranged in obturation wears arteries and veins and is located at stope drilling chamber level.
4. big thick ore body according to claim 1 vertically Two step mining stope filling system, it is characterised in that:
Drilling chamber connecting taxiway is equipped in armor rock on two step stopes, the drilling chamber connecting taxiway is by being arranged in armor rock on ore body
In filling wear arteries and veins and formed.
5. big thick ore body according to claim 1 vertically Two step mining stope filling system, it is characterised in that:
Distance between two neighbouring filling connecting taxiways is 60m~80m.
6. big thick ore body according to claim 1 vertically Two step mining stope filling system, it is characterised in that:
The filling pipeline that filling pipeline in arteries and veins is worn in upper disk stowboard and filling, filling is worn arteries and veins and filled in connecting taxiway passes through threeway
(10) connection is managed, separating brake valve is mounted on disk stowboard and filling is worn on the tee tube of arteries and veins connectivity part.
7. big thick ore body according to claim 1 vertically Two step mining stope filling system, it is characterised in that:
Several main gate valves (12) are equipped on the filling pipeline in upper disk stowboard, the one-to-one arrangement of arteries and veins is worn in each main gate valve and filling.
8. a kind of suitable for any big thick ore body of claim 1 to 7 vertically Two step mining stope filling system
The placement method of system, it is characterised in that the following steps are included:
S1, quasi- engineering is adopted
Filling is completed in each ore body (2) and obturation (4) to wear arteries and veins (7) and fill the excavation of connecting taxiway (8), is filled in upper disk
Tunnel (6), filling wear arteries and veins and fill the installation of the laying and separating brake valve (11) of completing filling pipeline (9) in connecting taxiway；
S2, separating brake valve is opened, the filling pipeline that slurry is successively worn arteries and veins through upper disk stowboard, filling and filled in connecting taxiway flows to
Goaf carries out multiple spot blanking filling, and multiple spot blanking filling includes following two mode:
S21, same filling are worn arteries and veins and are connected at least through two filling connecting taxiways with goaf, and the separating brake of stope side is first opened
Valve, slurry flow to goaf from the filling pipeline of the side, and each charging quantity is according to goaf volume size and filling slurry flow
In 3000m3~4000m3Between be adjusted；The separating brake valve of the same stope other side, filling pipeline one of the slurry from two sides are opened again
It rises and flows to goaf, carry out multiple spot blanking in turn and fill；
S22, the separating brake valve for opening simultaneously same stope two sides, slurry synchronize from the filling pipeline of two sides and flow to goaf, carry out
Circulating type multiple spot blanking filling；
S3, building filling counterfort
S31, when the packed height of step stope (1) interior slurry reach filling connecting taxiway bottom plate below 0.8m~1m when, close
The separating brake valve of the one step stope two sides stops filling, constructs a step stope close to mined out zone position in filling connecting taxiway and fills
Fill out barricade (13)；
S32, when the packed height of two step stope (3) interior slurries reach filling connecting taxiway bottom plate below 0.8m~1m when, close
The separating brake valve of the two steps stope two sides stops filling, wears in the filling of obturation boundary and constructs two step stopes in arteries and veins and fill
Fill out barricade (14)；
S4, step S2 and S3 are repeated, realizes that goaf connects top
S41, when in S31 a step stope filling barrier wall structure stablize after, repeat step S2 and S31, continue to adopt a step
Field carries out multiple spot blanking filling, realizes that a step stope goaf connects top；
S42, when in S32 two step stope filling barrier wall structures stablize after, repeat step S2 and S32, continue to adopt two steps
Field carries out multiple spot blanking filling, until two step stopes and filling wear and be completely filled with slurry in arteries and veins, realizes that two step stopes are mined out
Area connects top.
9. placement method according to claim 8, it is characterised in that: in step sl, obturation at least conserve 28 days and
Uniaxial compressive strength is not less than 2.0MPa.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110878695A (en) * | 2019-11-19 | 2020-03-13 | 铜陵有色金属集团股份有限公司 | Stope structure arrangement method suitable for continuous multi-step stoping |
| CN111852478A (en) * | 2020-08-20 | 2020-10-30 | 安徽铜冠（庐江）矿业有限公司 | Thick, large and stable ore body filling mining method with H-shaped stud structure |
| CN114320457A (en) * | 2022-01-10 | 2022-04-12 | 安徽马钢张庄矿业有限责任公司 | Underground goaf multipoint filling and goaf water filtering and draining method |
| CN114961844A (en) * | 2022-06-17 | 2022-08-30 | 中南大学 | Method for improving large-section drift filling mining efficiency and roof contact rate |
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