Stope structure arrangement method applicable to gently inclined medium and thick ore body combination sectioned mining

A technology with gentle inclination, medium thickness, and structural layout, which is applied in ground mining, earthwork drilling, underground mining, etc., can solve the problems of large cutting ratio, small ore body thickness, and increased mining costs, so as to improve production efficiency, The effect of reducing mining costs and saving preparation time

Active Publication Date: 2019-10-29
SINOSTEEL MAANSHAN INST OF MINING RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method needs to arrange the bottom structure of the ore in each section, including the ore roadway, ore loading approach, cutting trench, slip shaft and connecting road, etc., because the thickness of the ore body is not large, resulting in a large mining-to-cut ratio and low mining costs. substantial improvement
[0006] It can be seen that there is currently no safe and low-cost mining method for the mining of gently inclined medium-thick ore bodies.

Method used

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  • Stope structure arrangement method applicable to gently inclined medium and thick ore body combination sectioned mining
  • Stope structure arrangement method applicable to gently inclined medium and thick ore body combination sectioned mining
  • Stope structure arrangement method applicable to gently inclined medium and thick ore body combination sectioned mining

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Embodiment Construction

[0022] In order to better describe the present invention, the structure arrangement of the stope of the present invention suitable for combined and segmented mining of gently inclined medium-thick ore bodies will be described in further detail below with reference to the drawings.

[0023] by figure 1 The present invention is shown in the front view of the stope structure layout mode suitable for the combination of gently inclined medium-thick ore bodies and segmented mining and combined figure 2 It can be seen that the stope structure arrangement mode of the present invention suitable for combined segmental mining of gently inclined medium-thick ore bodies is: the lower segment stope 2 and the upper segment stope 3 are alternately arranged along the vertical direction of the ore body, the adjacent one The lower section stope 2 and an upper section stope 3 form a stope unit 1, and a column 4 is delineated at the end of the stope unit 1. The length of the stope unit 1 is 60-100m, t...

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Abstract

The invention discloses a stope structure arrangement method applicable to gently inclined medium and thick ore body combination sectioned mining. Lower sectional stopes (2) and upper sectional stopes(3) are alternately arranged in the vertical direction of an ore body every 10-15 m, each lower sectional stopes (2) and upper sectional stopes (3) are combined into a mining unit (1); studdings (4)are formed at the ends of the mining unit (1); cutting troughs are formed in the stopes with slot raises (10) as a free surface; ore falls into ditches (9); and ore is loaded in an ore loading approach road (8) through a carry-scraper, carried to an ore draw shaft (11) through an ore removal roadway (7), and then dropped to a haulage roadway (12) to be loaded and conveyed out. Every two sectionalstopes are divided into a mining unit for mining, projects such as the ore removal roadway, the ore draw shaft and a slope road linking taxiway are shared, the accurate mining cost is reduced, the preparation time for accurate mining work is saved, the mining efficiency is improved, mined waste rock can be processed into building materials for sale, and new storage space for tailings filling is additionally formed.

Description

Technical field [0001] The invention belongs to the technical field of underground mine mining, and specifically relates to a stope structure arrangement for the mining of gently inclined medium-thick ore bodies. Background technique [0002] The gently inclined medium-thick ore body is an ore body with a dip angle of 5°-30° and a thickness of 4-15m. Due to its inherent mining technical conditions, it has always been regarded as a difficult mining body. Due to the small inclination of the ore body, the use of transport equipment to enter the stope for ore extraction is very unsafe, or the structure at the bottom of the footwall is excavated to load the ore. The thickness of the ore body is relatively small, resulting in large mining and cutting works and high mining costs. [0003] In the mining of gently inclined medium-thick ore bodies in domestic and foreign mines, most of them still mainly adopt the room and pillar method or the open field method with the bottom structure of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22
CPCE21C41/22
Inventor 刘培正王湘桂赵运涛郝学冉程立年魏兵兵
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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