Research on the Application of Directional Exploration and Local Drainage in Water Disaster Prevention and Control
In response to the water damage problem during the excavation of tunnels and the mining of working faces in a coal mine,a comprehensive prevention and control method of directional exploration and grouting support,as well as a prevention and control method of"long-term local drainage and short-term centralized drainage",were proposed.Combined with the actual hydrogeological conditions of the working face,the engineering application was carried out.The results showed that using the existing drainage boreholes and the five newly added drainage boreholes,the final drainage time was reduced to 108 days,and the overall drainage effect of the working face was good,the time was reasonable,and the engineering quantity and cost were controllable.
targeted exploration and releasereleasetunnelstoping
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