Taking the curtain gap repair project of the first phase near the orebody in the west of a mine as an example,the mine geology,mine hydrogeology,No.1 well project and its plugging project are briefly described.The technical difficulties of directional drilling technology in repairing curtain gap in non-coal mine are analyzed,and the key solutions are put forward.The treatment plan is divided into two parts:surface and underground.First,engineering measures are used to block the water inwelling point,then directional drilling grouting is implemented to block the curtain gap,and surface geophysical exploration is used to locate and check the grouting effect.Moreover,the grouting materials are modified clay double slurry and modified tail mortar,which have the advantages of good price and local materials.After successful implementation,it has reference significance for water control projects in non-coal mines.
关键词
近矿体帷幕/定向钻探技术/矿山防治水/防治水技术/矿山安全
Key words
orebody curtain/directional drilling technique/mine water control/water control technology/mine safety
维普
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