The main formation that causes water percolation into the cave is the unloading joint and the trivial cracks by weathering.
造成洞窟渗漏水的主要构造是卸荷节理和风化微裂缝。
The abutment slope at Dagangshan Hydropower Project has complex geological conditions with faults, dikes, unloading crack intensive belt, deep unloading belt and developed joint fissures.
大岗山水电站坝肩边坡地质条件复杂，断层、岩脉、卸荷裂隙密集带、深部卸荷带及节理裂隙发育。
The abutment slope at Dagangshan Hydropower Project has complex geological conditions with faults, dikes, unloading crack intensive belt, deep unloading belt and developed joint fissures.
大岗山水电站坝肩边坡地质条件复杂，断层、岩脉、卸荷裂隙密集带、深部卸荷带及节理裂隙发育。
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