Borehole casing water outlet reinforcing device and method
A technology for reinforcing devices and casings, applied in construction, infrastructure engineering, etc., can solve problems such as inconspicuousness, long response time, safety accidents, etc., and achieve the effect of convenient use and simple structure
Pending Publication Date: 2021-11-09
DONGHUA CONSTR COMPANY LTD OF YANKUANG GRP
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AI Technical Summary
Problems solved by technology
Due to the pressure of groundwater and the need to manually seal the grouting hole when drilling into the hole, the leak cannot be plugged in time when drilling into the confined water layer, resulting in sudden surges, causing safety accidents and affecting construction quality.
In terms of sealing, scholars at home and abroad have studied chemical automatic sealing devices to seal, but the reaction time is too long, the effect is unstable and not obvious
Method used
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Embodiment approach 1
[0023] Implementation mode one: if Figure 1-3 As shown, the drilling casing water outlet reinforcement device of the present invention includes a grouting pipe 1, a plurality of grouting holes 2 are opened on the side wall of the middle section of the grouting pipe 1, and it is characterized in that: the inside of the grouting pipe 1 is also pierced There is a drainage tube 3, and the upper and lower ports of the grouting 1 and the drainage tube 3 are respectively closed by a conical tubular sealing plate 4 (of course, a circular sealing plate can also be used instead of the conical tubular sealing plate 4, omitted). The upper part of the grouting pipe 1 is fixedly connected with two outer convex rings 11, and an expandable sealing sleeve 12 is arranged between the two outer convex rings 11. The upper and lower edges of the expandable sealing sleeve 12 are respectively provided with inward flanges 121, which are turned over. The inner sides of the side 121 are respectively pr...
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The invention relates to a borehole casing water outlet reinforcing device and method. In order to overcome the defects in the prior art, the borehole casing water outlet reinforcing device disclosed by the invention comprises a grouting pipe; a plurality of grouting holes are formed in the side wall of the middle section of the grouting pipe; and the borehole casing water outlet reinforcing device is characterized in that a drainage pipe is further arranged in the grouting pipe in a penetrating mode; the upper and lower grouting end ports and the drainage pipe are respectively sealed through taper-pipe-shaped or circular-ring-shaped sealing plates; the upper portion of the grouting pipe is fixedly connected with two outer protruding rings; an expandable sealing sleeve is arranged between the two outer protruding rings; the axis of the grouting pipe coincides with the axis of the drainage pipe; the grouting pipe and the drainage pipe are both divided into a plurality of sections; and the adjacent upper and lower sections are respectively in threaded connection through sealing pipes. The invention further relates to a corresponding borehole water outlet reinforcing method. The borehole casing water outlet reinforcing device is simple in structure, convenient to use and suitable for carrying out rapid grouting reinforcement and plugging on a water inrush borehole.
Description
technical field [0001] The invention relates to a water outlet reinforcing device and method for a borehole casing. Background technique [0002] At present, in the construction process of tunnels such as roads and subways or mine drilling, faced with stratums containing confined water, the method of advanced grouting and sealing is often used for treatment. Due to the pressure of groundwater and the need to manually seal the grouting hole when drilling into the hole, the leak cannot be plugged in time when drilling into the confined water layer, resulting in sudden surges, safety accidents, and affecting construction quality. In terms of sealing, scholars at home and abroad have studied chemical automatic sealing devices to seal, but the reaction time is too long, and the effect is unstable and not obvious. Therefore, there is an urgent need in the prior art for a device and method for reinforcing the water outlet of the borehole casing. Contents of the invention [000...
Claims
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IPC IPC(8): E02D15/02E02D19/16
Inventor 李昌同陈优阔王学斌张思深蒋文利
Owner DONGHUA CONSTR COMPANY LTD OF YANKUANG GRP