渗流破坏是土石坝失事的主要模式，及早辨识其警兆对大坝安全运行至关重要。
The seepage-breakage is one of the main crash models of earth rock dam, so the warning sign is very important during the operation of the dam.
众多土石坝失事的教训，使大家清楚的认识到，一旦大坝溃决事故发生，造成的灾难将是不可想象的。
Many accidents have made it clear that the disaster caused by flood is unimaginable once a dam breaks.
重力坝主要依靠其自身的重力来维持稳定，其坝体体积大，稳定性好，但由于各种原因，仍有可能失事。
Gravity dam mainly relies on its own gravity to maintain the stability, with large volume, good stability, but for various reasons, it still may be breaked.
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