地基土弹性模量对薄壁筒桩海堤结构的影响分析

摘要

By means of the equivalent stiffness method, the structure of a seawall with cast-in-place tubular piles was simplified into that on a two-dimensional plane. The effect of different elastic moduli of soils on internal force and displacement of the structure was studied. The results show that the increase of the elastic modulus of muddy soils and the riprap treatment of foundation soils on seabed may effectively reduce lateral deformation of the seawall structure with cast-in-place tubular piles on one hand and improve its overall stability on the other hand. The seawalls with thin-walled tubular piles have significant economic benefits and good application prospects.%利用刚度等效原则,将筒桩结构简化为二维问题,研究不同土体弹性模量对结构内力和位移的影响.研究结果表明,提高淤泥质土弹性模量,对海底地基土体进行抛石处理,一方面可以有效减小筒桩海堤的侧向变形,另一方面可以提高海堤的整体稳定性.薄壁筒桩海堤结构经济效益突出,有很好的应用前景.