8303进风巷综合防治水技术措施应用分析

Analysis on the Application of Comprehensive Water Control Measures in 8303 Air Intake Roadway

为了保证8303进风巷掘进施工安全,避免水害事故发生新景矿地质测量部分析了8303进风巷水文地质条件,确定了巷道充水水源主要来自顶板砂岩含水层水,并对巷道掘进期间采取“瞬变电磁法+超前钻探法”综合防治水措施,通过实际应用共计放水量为5433 m3,消除了顶板水害隐患,取得了显著应用成效。

In order to ensure the construction safety of 8303 air intake tunnel and avoid the occurrence of water disaster,the Geological Survey Department of Xinjing mine analyzed the hydrogeological conditions of 8303 air intake tunnel,determined that the water filling source of the tunnel mainly came from the aquifer water of the roof sandstone,and took the comprehensive water control measures of"transient electromagnetic method+advanced drilling method"during the tunnel excavation,and the total water drainage amount was 5433 m3 through practical application.The hidden danger of roof water damage is eliminated and remarkable application results are obtained.