Convenient grouting sleeve device suitable for backwall grouting and use method

A casing device and grouting technology behind the wall, which are applied in vertical shaft equipment, earthwork drilling, wellbore lining, etc., can solve the problems of difficult construction wall recovery, difficult placement of grouting pipelines, low slurry retention rate, etc. Water blocking and reinforcement effect, fast recovery, good pulp stop effect
CN108166993AActive Publication Date: 2018-06-15SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2018-06-15

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Abstract

The invention relates to a convenient grouting sleeve device suitable for backwall grouting and a use method thereof. The grouting sleeve device can be divided into a front-loading grouting pipe set,a stop grouting expansion rubber sleeve and direct set, an intermediate connecting device and a grout inlet pipeline. The front-loading grouting pipe set includes an ordinary steel tube with an internal thread at one end and four small-bore grout sealing tubes welded at the periphery and provided with overhanging ports of 45-degree inclined angle on the outer wall; a four-way device of the grout inlet pipeline is a stainless steel four-way device with valves at each of end ports, and three end ports are a grout A end port, a grout B end port and a pressure relief end port; and a tube head cover is a round pipe plug device with an external thread at one end, and a grouting hole can be plugged after the tube head cover is screwed. Compared with existing devices, the convenient grouting sleeve device suitable for the backwall grouting successfully realizes the convenient handling of end sockets, the recycle of the device and the rapid restoration of the wall surface, greatly improves thework efficiency, reduces the cost expenditure, and can be widely used in backwall grouting construction.
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Description

technical field

[0001] The invention relates to a convenient grouting sleeve device suitable for grouting behind a wall, in particular to a convenient grouting sleeve device suitable for grouting behind a wall and a use method. Background technique

[0002] Nowadays, engineering disasters such as initial branching in tunnels, leakage of secondary lining, water leakage behind subway station walls, and tunnel water leakage during operation period occur from time to time, especially with the development of urban rail transit. As an effective means of strengthening weak and broken surrounding rock and sealing groundwater, grouting behind the wall has been widely used in the water plugging work of underground engineering. The problem is as follows:

[0003] 1. The effect of stopping slurry is poor, and accidents of slurry running out of the nozzle are very easy to occur. The retention rate of slurry in the effective area is low, which greatly causes waste of materials;

[0004] ...

Claims

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