CN106014410A

CN106014410A - Filling mining method for downward access part

Info

Publication number: CN106014410A
Application number: CN201610451581.XA
Authority: CN
Inventors: 曹平; 范文臣; 蒲成志; 唐国栋
Original assignee: Central South University
Current assignee: Central South University
Priority date: 2016-06-21
Filing date: 2016-06-21
Publication date: 2016-10-12

Abstract

The invention discloses a filling mining method for a downward access part. In the ore body mining process, a mining area is divided into spaced filling layers (3) and full filling layers (4) which are alternatively distributed in the vertical direction; the spaced filling layers (3) and the full filling layers (4) are each divided into a plurality of first strip blocks (1) and second strip blocks (2) which are alternatively distributed; downward access layer-by-layer mining is conducted in the ore body mining process. According to the filling mining method for the downward access part, the purposes of reducing the filling material usage amount in the mining process and reducing the mining cost are achieved on the premise that the stability of a mining field is guaranteed, layered strip block mining is conducted on an ore body, the filling ratio is decreased by reasonably arranging the mining sequence, and then the filling cost is reduced.

Description

To route part filling mining method under one

Technical field

The present invention relates to a kind of mining methods, be specifically related to a kind of lower adopting to route part filling Ore deposit method.

Background technology

During underground mine exploitation, along with subterranean body and the extraction of Ore, often cause earth's surface Sedimentation in various degree or subside, does great damage to mine geology environment and earth's surface ecology. In recent years, along with the attention of each side such as Environmental protection and land use, filling was used Method substitutes other mining methods back production underground ores and has become as necessarily becoming of mining technique development Gesture.The advantage of filling method is strong adaptability, mineral resources high stoping rate, and the rate of dilution is low, operation Safety, and earth's surface can be protected, secondary utilizes industrial waste etc..Due to cemented fill intensity Can be by manual control, it is possible to according to characteristics of surrounding rock and dead zone size design rational filling intensity, The control production cost tried one's best while maintaining adjoining rock stability so that cemented-method is applied For extensively.

Conventional full cemented-method can maintain the steady in a long-term of stope, but because it need to expend greatly Amount filler, when its be applied to the rate of dilution higher subterranean deposit exploitation time, relatively exploit Cost is excessive.When using filling method to carry out orebody mining in for lean ores exploitation, need in fall Reduce its production cost on the premise of the low ore extraction rate of dilution, improve production efficiency, the most right Cemented-method completely carries out scientific and reasonable Optimal improvements, in the premise ensureing Stope stability Under, reduce the consumption of filler, have kind of an important meaning to saving cost of winning.

Summary of the invention

The technical problem to be solved is to provide a kind of under ensureing Stope stability premise, The filler usage amount in mining process can be reduced, reduce the lower to route part of cost of winning Filling mining method.

In order to solve above-mentioned technical problem, it is lower to route part mining with stowing side that the present invention provides Method, during orebody mining, is divided into alternatively distributed from vertical direction by production zone It is spaced filling bed and is fully populated with layer；Described interval filling bed and described to be fully populated with layer equal It is divided into some alternatively distributed first sticks and the second stick；Orebody mining process is lower to entering Road layer-by-layer mining.

The route of interval filling bed is arranged and is arranged orthogonal with the adjacent route being fully populated with layer.

Described production zone such as is divided at the most alternatively distributed described interval filling bed and complete Full-filling layer.

Described interval filling bed and described described the first stick being fully populated with in layer and institute The second stick stated is width and the equal uiform section of height.

Described interval filling bed presses the filling of bar block gap, being embodied as of described interval filling Mode is: adopt one by stick every one, first exploits the first stick region ore body, then carries out filling, After body to be filled reaches design strength, then exploit the second stick region ore body.

Described is fully populated with the whole filling of layer, described in the detailed description of the invention that is fully populated be: First exploit the first stick region ore body filling, after body to be filled reaches design strength, exploitation the Two stick region ore body fillings.

In stope from top to bottom, layer-by-layer mining ore body.

Described interval filling bed is arranged with being fully populated with the equal horizontal layer of layer.

Use the lower in route part filling mining method, interval filling bed of technique scheme Placement method is interval filling, and the placement method being fully populated with layer is whole filling, its useful effect Fruit is: 1. interval filling bed is arranged vertically route with being fully populated with layer, it is ensured that stope filling body Stable safety；2. it is spaced fill volume is this layer of total excavation volume the 50% of filling bed, always Can reduce by the filler usage amount of 25% on body；3. compare stope to be fully populated with, the present invention Filling cost can be significantly reduced.

Under utilization practical to route part filling mining method, mineral resources high stoping rate, The rate of dilution is low.

In sum, the present invention is a kind of under ensureing Stope stability premise, digs up mine for reducing Filler usage amount in journey, reduces the lower to route part mining with stowing side of cost of winning Method, carries out layering point stick exploitation, by reasonable arrangement mining sequence, reduces filling ore body Ratio, and then reduce filling cost.

Accompanying drawing explanation

Fig. 1 is longitudinal layered and horizontal point of stick filling mining signal of production zone of the present invention Figure.

Fig. 2 is the I-I profile of Fig. 1.

Fig. 3 is the II-II profile of Fig. 1.

Fig. 4 is the III-III profile of Fig. 1.

In figure: 1-the first stick；2-the second stick；3-is spaced filling bed；4-is fully populated with layer；5- Stope roof；6-stope sill；7-face surrounding rock.

Detailed description of the invention

Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.

See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, lower to route part filling mining method, including Following steps:

1) it is in turn divided into orebody mining region on vertical being spaced filling bed 3 and filling completely Packing course 4, forms Stope roof 5, stope sill 6 and face surrounding rock 7, is spaced filling bed 3 Arranging with being fully populated with the equal horizontal layer of layer 4, floor height is equal；

2) interval filling bed 3 is divided into some equal in widths with being fully populated with layer 4 and alternately divides First stick 1 and the second stick 2 of cloth, and the width of the first stick 1 and the second stick 2 with Floor height is equal；

3) stope region mining sequence is lower to route layer-by-layer mining, wherein adjacent spaces filling Layer 3 is arranged with the route being fully populated with layer 4 and is mutually perpendicular to；

4), during the filling bed 3 of exploitation interval, adopt one by stick every one, first exploit the first stick 1 Region ore body, the first stick 1 is filling stick, then carries out filling, and body to be filled reaches to set After meter intensity, then exploiting the second stick 2 region ore body, the second stick 2 is barnyard stick；

5), when exploitation is fully populated with layer 4, the first stick 1 region ore body, Article 1 are first exploited Block 1 obturator exploits the second stick 2 region ore body filling after reaching design strength；

6) from the beginning of the interval filling bed 3 of the stope the superiors, according to abovementioned steps 4) and step 5) layer-by-layer mining, to mining stope sill 6, completes the operation of a stope successively.

Claims

1. to route part filling mining method under one kind, it is characterised in that: in orebody mining mistake Cheng Zhong, is divided into alternatively distributed interval filling bed (3) from vertical direction by production zone Be fully populated with layer (4)；Described interval filling bed (3) and described be fully populated with layer (4) All it is divided into some alternatively distributed first sticks (1) and the second stick (2)；Orebody mining Process is lower to route layer-by-layer mining.

The most according to claim 1 lower to route part filling mining method, its feature It is: the route of described interval filling bed (3) is arranged and adjacent described being fully populated with The route of layer (4) is arranged orthogonal.

The most according to claim 1 and 2 lower to route part filling mining method, it is special Levy and be: described production zone such as is divided at the most alternatively distributed described interval filling bed And be fully populated with layer (4) (3).

The most according to claim 1 and 2 lower to route part filling mining method, it is special Levy and be: described interval filling bed (3) with described be fully populated with in layer (4) described The first stick (1) and described the second stick (2) be width and the equal uiform section of height.

The most according to claim 1 and 2 lower to route part filling mining method, it is special Levy and be: described interval filling bed (3) is by the filling of bar block gap, described interval filling Detailed description of the invention be: adopt one by stick every one, first exploit the first stick (1) ore deposit, region Body, then carries out filling, after body to be filled reaches design strength, then exploits the second stick (2) Region ore body.

The most according to claim 1 and 2 lower to route part filling mining method, it is special Levy and be: described be fully populated with layer (4) all fillings, described in be fully populated with concrete real The mode of executing is: first exploit the first stick (1) region ore body filling, and body to be filled reaches to set After meter intensity, exploit the second stick (2) region ore body filling.

The most according to claim 1 and 2 lower to route part filling mining method, it is special Levy and be: in stope from top to bottom, layer-by-layer mining ore body.

The most according to claim 1 and 2 lower to route part filling mining method, its It is characterised by: described interval filling bed (3) sets with being fully populated with layer (4) all horizontal layers Put.