Curtain interception method of point-like vertical aqueducts in unconfined aquifers

A water channel and guide technology, applied in drainage, earthwork drilling, wellbore/well components, etc., can solve the problem that the amount of grouting cannot be effectively controlled, so as to eliminate hidden dangers of water damage, save cost and input, and reduce mine surge The effect of water volume

Active Publication Date: 2022-04-26
SHENHUA XINJIANG ENERGY +1
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Problems solved by technology

[0004] The embodiment of the present invention aims to provide a curtain closure method for point-shaped vertical aqueducts in unconfined aquifers, so as to solve the technical problem that the grouting volume of the direct grouting sealing method cannot be effectively controlled in the prior art

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  • Curtain interception method of point-like vertical aqueducts in unconfined aquifers
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  • Curtain interception method of point-like vertical aqueducts in unconfined aquifers

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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, ...

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Abstract

The present invention provides a method for curtain closure of point-shaped vertical aqueducts in submerged aquifers. After the center line is connected, the point-shaped vertical water guide channel is surrounded inside the line; in the grouting step, slurry is injected into the hole, and an anti-seepage curtain is obtained after the slurry solidifies. The above solution provided by the present invention cuts off the supply water source of the submerged aquifer by constructing a trap-type curtain body around the point-shaped vertical water guide in the aquifer, reduces the water inflow in the mine, eliminates the hidden danger of water damage, and greatly saves the cost input at the same time.

Description

technical field [0001] The invention relates to the technical field of water prevention and control in coal mines, in particular to a method for curtain interception of dotted vertical aqueducts in submerged aquifers. Background technique [0002] Coal mine water damage has always been one of the main disasters restricting the efficient and safe development of coal in my country. During the mining of shallow coal seams in Northwest my country, due to the collapse of the goaf, it is easy to form point-shaped vertical water-conducting channels, which are connected to the upper phreatic aquifer, causing the phreatic water to flow into the underground. Threatening the safe production of mines, therefore, the management of vertical water guide channels is one of the key tasks in the prevention and control of shallow buried deep coal mines. [0003] For the treatment of this type of point-shaped aqueduct, direct grouting is usually used at present to block the measures. Due to the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F16/00E21F17/00E21F15/00E21B33/138
CPCE21F16/00E21F17/00E21F15/00E21B33/138
Inventor 陈建强孙秉成石磊许峰刘旭东肖建
Owner SHENHUA XINJIANG ENERGY
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