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open pit filling method

A filling method and open-pit technology, which is applied in earth square drilling, ground mining, underground mining, etc., can solve the problems of underground mining system impact and achieve the effect of reducing impact

Active Publication Date: 2019-02-26
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method for filling an open pit to solve the problem that the open pit in the prior art affects the underground mining system

Method used

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Embodiment 1

[0038] The open pit filling method of embodiment one comprises the following steps in sequence:

[0039] Step S10: laying the reinforcement mesh on the pit bottom of the open pit;

[0040] Step S20: laying the first filling slurry on the steel mesh to form the first filling layer 10, and the first filling layer 10 covers the pit bottom of the open pit;

[0041] Step S30: laying the second filling slurry on the first filling layer 10 to form the second filling layer 20;

[0042] Step S40: Complete the filling of the open pit.

[0043]Applying the open pit filling method of this embodiment, the steel mesh is first laid on the bottom of the open pit, and then the first filling slurry is laid on the steel mesh to form the first filling layer 10, and the first filling layer 10 is covered. The bottom of the open pit, thus completing the filling of the open pit. Since the above-mentioned first filling slurry is in a fluid state, it can be laid on the reinforcement mesh. When the ...

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Abstract

The invention provides an open pit filling method, which comprises the following steps in order: S10, laying a bedding structure at the pit bottom of the open pit; S20, laying first packing slurry onto the bedding structure to form a first filling layer (10), which covers the pit bottom of the open pit; and S40, completing the filling of the open pit. By the technical scheme, the problem that open mining pits influence an underground mining system in the prior art can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of open pit treatment, in particular to an open pit filling method. Background technique [0002] When the mine is mined, there is a relatively complicated hydraulic channel between the open pit and the underground stope, and the atmospheric precipitation collected by the upper open pit will directly invade the underground mining system. Especially when the vegetation around the open pit is destroyed, if there is a heavy rain, the open pit will collect a large amount of water, the runoff coefficient will be large, the flood peak flow will be large, and the water inflow in the pit will increase sharply in a short period of time, and it may even reach normal inflow. Several times or even dozens of times the amount of water, this may cause catastrophic accidents such as flooding, sediment irrigation, and well flooding, which will seriously affect the underground mining system. [0003] In order to solve the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/32
CPCE21C41/32
Inventor 谢盛青刘育明杜贵文朱维根岑健
Owner CHINA ENFI ENGINEERING CORPORATION
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