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Method for safely and efficiently recovering panel pillars by using sublevel open-stope subsequent filling method

An efficient and safe technology, applied in the direction of filling, safety devices, earthwork drilling, etc., can solve the problems of large amount of mining engineering, difficulty in ensuring safety, long mining cycle, etc., and achieve high mechanization, large production capacity, and improved recovery rate Effect

Active Publication Date: 2021-11-02
KUNMING UNIV OF SCI & TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method with less engineering quantity, less difficulty in construction, and less preparation time for mining in view of the existing problems in the prior art, such as large amount of mining engineering, high cost, low recovery rate, long recovery period, and difficulty in ensuring safety. Short, inter-column high recovery rate safe and efficient recovery method of inter-panel inter-column in subsection empty field and subsequent filling method

Method used

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  • Method for safely and efficiently recovering panel pillars by using sublevel open-stope subsequent filling method
  • Method for safely and efficiently recovering panel pillars by using sublevel open-stope subsequent filling method
  • Method for safely and efficiently recovering panel pillars by using sublevel open-stope subsequent filling method

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Embodiment Construction

[0030] In order to better describe the present invention, a method for safely and efficiently recovering the inter-panel columns of the sectioned empty field and subsequent filling method of the present invention will be further described in detail in conjunction with the accompanying drawings.

[0031] The present invention is a method for safely and efficiently recovering the inter-panel inter-panel column of the segmented empty field and subsequent filling method. The two sides of the inter-panel inter-panel column 3 are composed of a non-cemented filling body 1 filled with waste rocks and a cemented filling body 2 filled with tailings. In the already mined stope, there are segmental rock drilling roadways 5 and segmental connecting roads 6 in the panel interval column 3, the segmental rock drilling roadway 5 is provided with filling retaining walls 4, and there is a stope slope outside the panel surrounding rock Road 7 is connected to each segment, segmental connecting road...

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Abstract

The invention discloses a method for safely and efficiently recovering panel pillars by using a sublevel open-stope subsequent filling method, A sublevel rock drilling roadway (5), a sublevel contact way (6), a stope slope ramp (7) and a sublevel vein-following contact way (8) of an original project are fully utilized, filling raises are arranged at intervals in the length direction of the panel pillars (3) according to design parameters in the upper section of the middle section of stoping, the filling raises are used for backfilling waste rocks to form a filling waste rock covering layer (9) according to the mining principle of a sill-pillar-free sublevel caving method, ore removal is completed under the covering layer, it is ensured that ore rocks in a stope are full, and retaining wall pillars (10) on the two sides are supported, so that the stoping safety is ensured. The method is high in ore recovery rate, high in recovery capacity, low in recovery cost, high in mechanization degree, safe in operation environment, free of goaf after recovery and free of hidden danger.

Description

technical field [0001] The invention belongs to the technical field of underground mine mining, and in particular relates to a method for recovering an interval column of a mining panel by adopting a segmented empty field and subsequent filling method, which can be widely used in underground mining of large and medium-sized non-coal solid mines such as black, non-ferrous, and chemical mines. Background technique [0002] With the improvement of environmental protection requirements, the advancement of filling technology and the reduction of filling costs, more and more mines adopt the filling method for mining, especially iron mines. Due to the relatively thick ore body, whether the stope is arranged along the vein or vertically, the length of the stope is too long, which is not conducive to safe mining. Therefore, the ore deposit is divided into multiple panels, and inter-columns are set between the panels. , the stope is divided in the panel, and the stope connecting roadw...

Claims

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Application Information

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IPC IPC(8): E21C41/22E21F15/00
CPCE21C41/22E21F15/005
Inventor 汪亮乔登攀王运敏王航龙尹裕谢锦程黄飞
Owner KUNMING UNIV OF SCI & TECH
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