Curtain Grouting and Interception Technology for Burnt Rock Strata in Open-pit Coal Mines
In order to eliminate the threat of water gushing at the east end of Xiwan Open-pit Coal mine,based on the hydrogeological analysis results of burned rock strata in the mining area,a technical scheme of end slope water gushing curtain grouting and interception was proposed.And technical parameters such as the number of boreholes,grouting radius and borehole spacing of curtain belt were compared and analyzed from three aspects:technical feasibility,safety and durability and economic reliability,the optimal curtain interception technology scheme was selected,the construction process was determined,and the practical effect of curtain interception engineering was monitored and analyzed.It was found that the water inflow in the mine was effectively controlled.
end slope water gushingburnt rockwater channelcurtain groutinginterception
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