Method for mining thick ore body through segmental ore breaking and subsequent cemented filling

A technology of cemented filling, thick and large ore body, applied in the direction of filling, ground mining, mining equipment, etc., can solve the problems of high investment, complicated process, low ore output, etc.
CN107130962AInactive Publication Date: 2017-09-05NORTHWEST RES INST OF MINING & METALLURGY INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWEST RES INST OF MINING & METALLURGY INST
Publication Date
2017-09-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for mining a thick ore body through segmental ore breaking and subsequent cemented filling. The method comprises the following steps: 1) dividing the ore body into a plurality of segments along the vertical direction of the ore body; 2) dividing the ore body into a plurality of stopes in each segment along the trend of the ore body; 3) arranging rock drilling roadways along a direction perpendicular to the trend of the ore body in each stope, wherein the rock drilling roadways penetrate the ore body and extend to the hanging wall rock of the ore body; 4) supporting the rock drilling roadways formed in the step 3): a, spraying concrete onto the wall surfaces of the roadways; b, knocking anchor poles into the two sides and the tops of the roadways; c, fixedly laying steel mesh reinforcement onto the two sides of the roadways; and d, spraying a 100-mm-thick layer of concrete onto the surfaces of the steel mesh reinforcement; and 5) carrying out mining: a, mining the ore body from hanging segment to footwall segment successively; and b, mining every stope in each segment in such a manner that primary mining is carried out on odd or even stopes at first and then secondary mining is carried out on the rest stopes.
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Description

technical field

[0001] The invention relates to the technical field of backfill mining technology, in particular to a mining method for segmental collapse followed by cementation backfill for thick and large ore bodies. Background technique

[0002] At present, the main methods used in the mining of thick and large ore bodies in my country include room and pillar method, ore retention method, segmented ore room method,

[0003] Layer, segmented caving method, staged caving method, upward layered filling method, layered, segmented filling method, wall filling method, point column filling method, staged filling method, etc. Among them, the room-and-pillar method, wall filling method, and inclined layered filling method are mainly used for horizontal and gently inclined ore bodies.

[0004] However, the mining method of the above-mentioned thick and large ore bodies has complex processes, high investment and low ore output, which cannot meet market demand. Contents of the in...

Claims

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