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洪水灾害是我国主要的自然灾害,防洪工作的战线长、任务重,以武汉为例,市区位于长江与汉水交汇处,城郊河流纵横,湖泊密布,历来受洪水严重威胁,城市防洪安全,全依赖堤防保护。市区确保干堤178.5公里,在中等洪水年分,每遇汛期出现大小险情几十处,为了揭示堤防过去在设计、施工、管理中的问题,总结教训,分析工程的正常老化和非正常老化,掌握堤防工程实际防御洪水能力,或在防汛期间选准重点防守对象提供依据;为了深入探讨工程抵抗老化,提高耐久性能的途径和方法,为设计中的耐久性指标,提供一定可靠的量化数
Flood disaster is a major natural disaster in our country. Flood control work has long frontline and heavy task. Take Wuhan as an example. The urban area is located at the confluence of the Yangtze River and Hanjiang River. The suburban rivers are vertical and horizontal and the lakes are densely covered. It has always been a serious threat to floods, Rely on the embankment protection. In urban areas, a total of 178.5 kilometers of dry embankments are ensured. During mid-flood years, there are dozens of dangerous situations in each flood season. In order to reveal the problems in the design, construction and management of dike in the past, lessons are learned and the normal and abnormal aging of the works are analyzed To master the actual defensive flood capacity of the embankment project or to select the key defensive targets during the flood season; in order to further explore the ways and methods of aging resistance and durability of the project, provide some reliable quantitative indexes for the durability indexes in the design