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Method for blocking upward pumping of structure development type broken ore body under water body

A technology of ore body and structure, which is applied in the field of upward pumping of structurally developed broken ore bodies under the blocking water body, so as to save manpower and financial resources, ensure safety and daily production.

Active Publication Date: 2022-07-22
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0006] Based on the problem of water inrush caused by the development of the structure in the broken ore body in underwater mining, the present invention proposes a method for blocking the upward pumping of the broken ore body with the development of the structure under the water body

Method used

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  • Method for blocking upward pumping of structure development type broken ore body under water body
  • Method for blocking upward pumping of structure development type broken ore body under water body
  • Method for blocking upward pumping of structure development type broken ore body under water body

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0041] The invention provides a method for blocking the upward pumping of broken ore bodies with developed structures under water bodies.

[0042] The method includes the following steps:

[0043] Include the following steps:

[0044] S1: The upper wall and lower wall along the vein roadway and the lower wall along the vein roadway are constructed along the strike of the ore body on the upper wall and lower wall of the ore body;

[0045] S2: Micro-shield machine is used for the construction of the tunnel tunnels on the upper side and the lower side tunnels, and the distance between the center lines of the two adjacent tunnel tunnels is 6m to 8m;

[0046] S3: After the excavation of the vein-piercing tunnel is completed, drill grouting h...

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Abstract

The invention provides a method for blocking upward pumping of a structure development type broken ore body under a water body, and belongs to the technical field of mining engineering. The method comprises the following steps: firstly, constructing a drift roadway on each of the two sides of the top outside the plane influence range of a stope area where caving possibly occurs along the trend of an ore body, constructing a transverse drift roadway on a hanging wall drift roadway by using a miniature shield tunneling machine, drilling grouting holes in the vertical, inclined upper and inclined lower positions of the two sides of the transverse drift roadway after the transverse drift roadway is tunneled, and drilling grouting holes in the vertical, inclined upper and inclined lower positions of the transverse drift roadway; after the grouting hole drilling operation is completed, high-pressure grouting is conducted; and after grouting work is completed, a folding type 3D printing columnar high-strength resin net is laid in the transverse drift roadway, and after the resin net is completely unfolded, the transverse drift roadway is filled with concrete slurry. Water can be prevented from entering the stope along the secondary fissures, manpower and financial resources of mine enterprises are saved, and safety and daily production of workers of the mine enterprises are guaranteed.

Description

technical field [0001] The invention relates to the technical field of mining engineering, in particular to a method for blocking the upward pumping of broken ore bodies developed under water bodies. Background technique [0002] The mining of ore bodies under surface water bodies, buildings and public (railway) roads is collectively referred to as "three lower" mining. In addition, a gold ore body in Jiaodong, my country is located below the Bohai Sea. The above-mentioned ore deposits under surface water bodies and sea areas are extremely difficult to mine, and the mining of ore bodies is easily affected by the stability of the ore bodies and surrounding rocks. Underwater mining is a difficult ore body to mine, and underwater mining technology, especially seabed mining, needs further study. One of the key problems is that the structures developed in the broken ore body in underwater mining can easily induce pumping-type water inrush in the stope or roadway. The consequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/22E21D9/06E21D11/00E21D11/10
CPCE21C41/22E21D9/06E21D11/105E21D11/00Y02E10/20
Inventor 曹帅黄智强赵紫月
Owner UNIV OF SCI & TECH BEIJING
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