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A Combined Filling Mining Method for Complicated Ore Body

A technology for filling mining and ore bodies, which is applied in the direction of fillings, ground mining, mining equipment, etc., can solve problems such as poor operation safety performance, difficult site management, and complicated construction technology, so as to achieve a good mining operation environment and reduce mining losses. The effect of small dilution and great flexibility

Active Publication Date: 2020-12-25
NANHUA UNIV
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Problems solved by technology

However, the disadvantage of this method is that it has the disadvantages of complicated construction technology, difficult site management, and high production cost, and cannot meet the requirements of safe, efficient and economical mining well.
However, the disadvantage of this method is that it has the disadvantages of difficult on-site management, high production costs and complicated procedures.
However, the disadvantages of the method are: there are problems of complicated procedures and poor operation safety performance.

Method used

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  • A Combined Filling Mining Method for Complicated Ore Body

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Embodiment 1

[0039] The selected ore body is a broken complex ore body in China, which is characterized by: thick ore body, relatively broken ore body and surrounding rock, weathered and highly corroded hanging wall surrounding rock, extremely poor stability, and frequent occurrence of ground pressure , It is difficult to mine. Generally speaking, the ore body and surrounding rock are all unstable rock masses.

[0040] see figure 1 As shown, the present invention provides a combined filling and mining method for complex ore bodies. The combined filling mining method adopts a mining method that combines the upward horizontal layered approach filling method with the segmented and striped filling method, including the following steps:

[0041] S1. Stope division: The stope is arranged along the direction of the ore body, and the width is the horizontal thickness of the ore body; the height of the middle section of mining is 60m, and it is composed of three sections with a height of 20m; each...

Embodiment 2

[0052] The selected ore body is a broken complex ore body in China.

[0053] see figure 1 As shown, the present invention provides a combined filling and mining method for complex ore bodies. The combined filling mining method adopts a mining method that combines the upward horizontal layered approach filling method with the segmented and striped filling method, including the following steps:

[0054] S1. Stope division: The stope is arranged along the direction of the ore body, and the width is the horizontal thickness of the ore body; the height of the mining middle section is 45m, and it is composed of three sections, and the section height is 15m; each section is divided into 4 horizontal sections Layers are mined in a layered sequence from bottom to top. The layered mining height is 3.75m, and the layered approach is 4m×4m in size.

[0055] S2. Mining and cutting engineering: including segmental transportation lane 1, segmental connecting road 2, chute 8, filling shaft ...

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Abstract

The invention provides a combined filling mining method for a complex ore body. The combined filling mining method adopts a mining method combining an upward horizontal layered drift filling method and a segmented and stripped filling method, a stope is arranged along the trend of the ore body and consists of three segments, each segment is divided into four horizontal layers, mining is performedaccording to a layered sequence from bottom to top, and a panel area and a drift are divided in each layer. Stoping is performed in sequence by adopting a stoping pillar stoping chamber alternate stoping mode, and a tailing cemented filling material with an optimized ratio is used for filling after stoping of each drift is finished. The tailing cemented filling body provided by the invention is high in compressive strength, and the stope filling process is stable and safe. The combined filling mining method provided by the invention has the advantages of high adaptability to ore body morphological changes, high flexibility, high production capacity, low production cost, safe and reliable stoping, low mining loss and dilution and good mining operation environment.

Description

technical field [0001] The invention relates to mining technology, in particular to a combined filling mining method for complex ore bodies. Background technique [0002] With the increasing demand for social and economic development, mining technology has also improved and improved day by day. Mineral resource mining has gradually developed to the deep part of the ore body. A series of problems such as ground pressure, deterioration of the operating environment, ventilation and sharp increase in production costs have led to a decline in mining production capacity and insufficient recovery of mineral resources. Therefore, in the mining of mine resources, whether the choice of mining method is reasonable or not is directly related to the operation safety and economic benefits of the mine. Especially for ore bodies with broken ore rocks, unstable ore bodies, and complex mining technical conditions, the reasonable selection of mining methods has always been a major problem in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/22E21F15/00
CPCE21C41/22E21F15/00E21F15/005
Inventor 戴兵陈英罗鑫尧单启伟薛永明刘永
Owner NANHUA UNIV
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