离岸浅堤中土工织物充填管状袋的力学机理分析

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.

Mechanical Mechanism Analysis of Geotextile Tubes Applied in Offshore Low-Crested Breakwaters

In existed researches, the mechanical mechanism analysis of geotextile tubes applied in this complicated new type of breakwaters was never considered. Based on the investigation of the mechanical properties of geotextile tubes,in this paper the stability and transmission behaviors of offshore low-crested breakwaters are studied.And the cross section shape and circumferential tension of geotextile tubes are obtained by the method of elliptic integrals.The numerical example resuits show that the geotextile tubes as the cores are reliable and the methods presented in this paper can be used efficiently in the design process of complicated new type breakwaters.