Method for reconstructing top plate and bottom plate double limestone water-bearing strata through double-layer multiple branch consequent layer drilling grouting
A layered drilling and multi-branch technology, applied in drainage, earthwork drilling, wellbore lining, etc., can solve the problems of limited underground space, mining without water inrush at the working face, and large amount of construction engineering, and achieve comprehensive water control. Low cost, less roof drainage, and obvious economic benefits
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[0029] Specific embodiments of the present invention are provided below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.
[0030] A double-layer, multi-branch drilling and grouting method for reforming the double limestone aquifer on the roof and floor, comprising the following steps:
[0031] (1) Drilling and deflection: Survey the target ground, select a suitable location on the ground as the construction point, set the drilling parameters, use oil drills to drill downwards, and start construction when the drilling reaches the Quaternary strata 1 Section 2, when the build-up section 2 enters the bedrock 9, the next-level casing, in this embodiment, the next-level casing is preferably 10 meters after the build-up section 2 enters the bedrock 9;
[003...
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