摘要
近年来气候条件逐年恶化,极端气候频繁出现,台风和暴雨使河水位和潮水位急剧升高,很多海塘和防洪堤达不到超高要求,需要加高;同时对景观的要求越来越高,传统的加高加固方式虽能满足安全要求,但往往影响城市景观。为此,提出了以翻转式防洪子堤代替传统堤防加高加固的方案,并以某地实际工程为例进行了堤型设计,利用三维有限元理论,通过建立有限元模型对结构的稳定及振动特性进行了模拟计算,证实了该新型堤防在理论上的安全可靠性,为滨海城市防洪提供了新思路。
The climate condition is getting worse in recent years. The extreme climate occurs frequently. The ty- phoon and storm make the water and tidal level rise sharply. A lot of seawalls and levees can not meet the requirements of flood control. So, it is necessary to heighten and reinforce the original levee. At the same time, human beings call for higher quality of the landscape. The traditional ways of heightening and reinforcing always produce huge walls against the riverside avenues. Therefore, this paper puts forward a new turnover-type flood embankment to replace the traditional ones and designs the sub-embankment based on the practical engineering. And then the finite element simulation model is established. This paper confirms that the new embankment is safe and reliable in theory by the analysis of the stability and deformation of the model calculation, which provides a new idea for flood control of coastal city.
出处
《水电能源科学》
北大核心
2015年第6期117-119,116,共4页
Water Resources and Power
关键词
防洪挡潮
翻转式防洪堤
三维有限元理论
城市景观
flood control and tide-retaining
turnover-type flood embankment
three-dimensional finite element
ur- ban landscape
