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[CN 202011433459.2] Curtain Grouting Method Based on Directional Hydraulic Mechanical Splitting Technology
[CN 202011433459.2] Curtain Grouting Method Based on Directional Hydraulic Mechanical Splitting Technology Title: Curtain Grouting Method Based on Directional Hydraulic Mechanical Splitting Technology Application Number: CN 202011433459.2 Applicant: China University of Mining and Technology Application Date: 2020-12-9 Patent Type: Invention Application The present invention discloses a curtain grouting method based on directional hydraulic mechanical splitting technology, which belongs to the technical field of mine engineering construction. The curtain grouting method based on directional hydraulic mechanical splitting technology of the present invention is to first construct a circle of grouting holes in the periphery of the wellbore, then adopt directional hydraulic mechanical splitting technology, so that the rock bodies between the grouting holes penetrate each other through directional cracking cracks, and then adopt underground grouting to form a continuous curtain, effectively cut off the connection between the deep rock pore water and the wellbore, which can greatly improve the reliability of interception and leakage prevention of the deep pore rock confined water, prevent flooding accidents. At the same time, the grouting curtain with a certain strength and thickness and the rock layer between the borehole can be fully utilized as a part of the borehole supporting structure, so that the grouting curtain, the formation rock and the borehole wall supporting structure can jointly bear the deep formation pressure and pore water pressure.
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