黄河下游凌汛期防凌现状及防治措施

Current situation and measures of ice flood prevention during ice flood season in the lower reaches of the Yellow River

黄河下游凌情复杂,变化迅猛。河道中只有冰凌没有水的动力作用是很难形成严重的凌灾。冰和水这两个因素是相辅相成的,“冰借水势,水助冰威”能造就水鼓冰裂的“武开河”形势,能形成冰塞、冰坝的壅水漫溢。目前黄河下游防凌措施应以水库调控河道流量为主,辅以分水分凌、破冰、拦冰、导冰、融冰、冰凌观测和预报、防凌信息网络化管理等。