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与传统的离岸堤相比,土工织物充填管状袋作为堤心构成的新型离岸潜堤形式不仅具有减小波浪力的作用,还具有经济和美观的功能。然而,在现有的研究中还没有对这一复杂新型式的防波堤中的土工织物充填管状袋的力学机理分析的考虑。本文在土工织物充填管状袋的力学性能研究的基础上,对离岸浅堤的稳定性和透射性能进行了研究。土工织物充填管状袋的横截面形状和周向拉力采用椭圆积分方法得到。计算实例结果表明:土工织物充填管状袋作为堤心是可靠的,同时,文中提出的研究方法可在复杂新型离岸浅堤的设计过程中发挥积极作用。
Compared with the traditional offshore embankment, the geotextile-filled tubular bag as the new offshore submersible embankment not only has the function of reducing the wave force, but also has the economic and esthetic function. However, no consideration has been given to the mechanistic analysis of geotextile-filled tubular bags in this complex and new type of breakwater in the existing research. In this paper, based on the study of mechanical properties of geotextile-filled tubular bags, the stability and transmission performance of offshore shallow banks are studied. The cross-sectional shape and circumferential tension of the geotextile-filled tubular bag are obtained using the ellipse integration method. The calculation example shows that geotextile-filled tubular bag is reliable as a dike, meanwhile, the research method proposed in this paper can play an active role in the design of complex and novel offshore dykes.