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本文探讨波浪入射内、外壁皆透空双层透水沉箱的无因次波力、总力及沉箱内、外圈四周相对爬升的问题,并在线性波浪理论下,采用复合边界元素法(composite BEM)做数值解析。为了验证本文数值模式正确性,与SBFEM方法所计算外壁透空双圆筒内、外圆柱相对爬升及无因次波力的结果进行比较及验证,获得精度高、正确且合理结果。数值计算结果显示:采用双层透水沉箱与传统单层外壁透空内筒不透水的波力比较,大部分也都有降低现象。波浪作用于内、外壁皆透空双层透水沉箱内、外筒无因次波力及总力值皆会随透水参数的增加而降低。
In this paper, we discuss the dimensionless wave force, the total force and the relative climbing around the outer and inner caissons of caissons in both the inner and outer walls of a wavy wave. Under the linear wave theory, the composite BEM ) Do numerical analysis. In order to validate the correctness of the numerical model in this paper, the results of SBFEM method to calculate the relative climb and the non-dimensional force of the inner and outer cylinders of the hollow cylinder with outer wall were compared and verified to obtain the high accuracy, correctness and reasonable results. The results of numerical calculation show that most of the water-immersion caissons are reduced compared with the watertightness of the traditional single-layer outer-hollow permeable inner cylinder. The waves act on the inner and outer walls of the outer double-layer water-permeable caisson. The dimensionless force and the total force of the outer cylinder all decrease with the increase of the permeable parameters.