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刘家峡水电站地下厂房上游壁地下水位偏高,影响岩壁稳定。虽然采取了多种措施,成效甚微。采用环境同位素探测发现了154号孔深层承压水向上补给后,进行处理,切断了补给通道,地下水位大幅降低,同时又保证了观测管的正常观测。获得了事半功倍的效果。
The underground water level of the upstream wall of Liujiaxia Hydropower Station underground plant is too high, affecting the stability of the rock wall. Although a variety of measures have been taken, the effect is very small. Using environmental isotope detection, it was found that the pressure of deep confined water in No. 154 hole was increased after treatment, the supply channel was cut off, the groundwater level was drastically reduced, and the normal observation of the observation tube was guaranteed. Get a multiplier effect.