Method and device for grouting in hole and effectively stopping grout

A technology for grouting and grouting, applied in the field of grouting in holes and effectively stopping grouting, and realizing grouting in holes and effectively stopping grouting. Reduce material waste, ensure slurry stop effect, and large lateral expansion effect
CN101768974BActive Publication Date: 2012-07-04CHINA RAILWAY TUNNEL GROUP CO LTD +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY TUNNEL GROUP CO LTD
Publication Date
2012-07-04

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Abstract

The invention discloses a method for grouting in a hole and effectively stopping the grout. The method is divided into two main action processes, namely grouting and stopping the grount and comprises the following steps: drilling a hole, grouting, expanding with an expansion rubber plug, grouting and disassembling. The device for realizing the method for grouting in the hole and effectively stopping the grout comprises a grout inlet pipe (1), a grout pipeline, an expansion stop-grouting plug (11) and a single-way pressure valve (14) which are sequentially connected, wherein the grout pipelineand the expansion stop=grouting plug (11) as well as the expansion stop-grouting plug (11) and the single-way pressure valve (14) are connected by joints. The technology can stop the grout at any section in the grouted hole with good effect. Besides, steel grout transmission pipes can be conveniently removed from the device, thereby reducing the waste of the materials while ensuring the grout stopping effect.
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Description

technical field

[0001] The present invention relates to a grout-stopping technology, in particular to a method for grouting and effectively stopping grouting in holes that are applied to tunnels, underground engineering cracks, and broken rock masses for advance grouting reinforcement and water blocking; the present invention also relates to a method for realizing A device for injecting grout into the hole and effectively stopping the grout. Background technique

[0002] During tunnel and underground construction in cracks and broken surrounding rock, in order to ensure construction safety and reduce water leakage after the tunnel is completed, grouting is often used at home and abroad to achieve water blocking and reinforcement. The grouting techniques currently applied to rock mass grouting include full-hole one-time grouting, segmented forward grouting, and segmented backward grouting.

[0003] Full-hole one-time grouting is to complete the drilling at one time according...

Claims

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