When there exists reservoir upstream, whose standard for flood control is lower then that in downriver, the dam-breakflood upstream must be considered.
当上游有水库，其防洪标准低于下游水库时，下游水库必须考虑上游水库溃坝洪水的影响。
2
Dam-breakflood waves often vary rapidly or even discontinuously, with both rapid and tranquil flow behaviors, as well as both compression and rarefaction waves.
溃坝洪水波通常为迅变或间断流动，同时兼有急流和缓流、压缩波和稀疏波等流态。
3
With support of dam-breakflood numerical simulation and GIS, combined with China's national conditions, overall framework of dam-break rescue support system is designed.