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对地面难以封堵的高水位封闭不良水文长观孔采取在井下封堵的方案,通过物探与钻探相结合、封孔与堵源相结合,地面与井下注浆系统相结合的办法,对水文孔上下的含水层注浆封堵,从而切断水文孔周围含水层之间的水力联系,再进行效果分析、验证、评价,达到治理钻孔水害的目的。
On the ground is difficult to plug the seal of the high water level unhealthy hydrological long hole to take the closure of the underground program, through the combination of geophysical and drilling, sealing and plugging the source of the combination of ground and underground grouting system, the hydrological Blocking the aquifer above and below the grouting, thus cutting off the hydraulic connection between aquifers around the aquifer, and then the effect of analysis, verification, evaluation, to achieve the purpose of treating borehole water damage.