Large-flow karst pipeline type water gushing point grouting plugging method
A water gushing point and large flow technology, which is applied in tunnels, earthwork drilling, tunnel lining, etc., can solve the problems that the grout is easily washed away and it is difficult to achieve the sealing effect, and achieve the effect of preventing the phenomenon of water gushing around the flow
Active Publication Date: 2020-12-25
JINAN LIWEN GEOTECHNICAL ENG CO LTD +1
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Problems solved by technology
The karst pipeline-type water gushing has the characteristics of large flow and high velocity. The inventors found that currently, in the process of sealing the karst pipeline-type water gushing, the slurry is easily washed away and it is difficult to achieve the plugging effect.
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[0033] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0034] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;
[0035] For the convenience of description, if the words "up", "down", "left" and "right" appear in th...
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Abstract
The invention discloses a large-flow karst pipeline type water gushing point grouting plugging method. The large-flow karst pipeline type water gushing point grouting plugging method comprises the following steps that a drainage pipe is arranged at a water gushing point, and a drainage valve is installed at a water outlet of the drainage pipe; the opening degree of the drainage valve is controlledfor drainage, and primary speed reduction is carried out on high-flow-speed gushing water in a karst pipeline; a grouting drill hole is constructed in the upstream position of the water gushing point, aggregate is injected into the water gushing pipeline, and the water flow speed is reduced again; and grouting is carried out on the water gushing pipeline, and plugging of the water gushing pipeline is achieved.
Description
technical field [0001] The invention belongs to the technical field of water prevention and control in underground engineering such as sunken mines, mine shafts and tunnels, and in particular relates to a grouting and sealing method for large-flow karst pipeline-type water gushing points. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] According to statistics, among the many types of disasters in underground engineering, the casualties and economic losses caused by water inrush disasters rank first, causing serious construction delays, casualties, economic losses and environmental damage. [0004] For water inrush disasters in underground engineering, grouting is currently the most effective control method, but the effectiveness of grouting is subject to different water inrush conditions. The karst pipeline-type water gushing has the characteristi...
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IPC IPC(8): E21D11/38C04B28/26C04B111/70
CPCE21D11/38C04B28/26C04B2111/70C04B2111/00663C04B18/24C04B18/248Y02E10/20
Inventor 李晓亮李海燕高大威王彦哲李勇
Owner JINAN LIWEN GEOTECHNICAL ENG CO LTD