倾斜荷载作用下双桶吸力基础承载特性数值分析  

Numerical simulations of inclined bearing capacity of double-tube suction caisson

作　　者：何倩倩 黄勇 宋启明 He Qianqian;Huang Yong;Song Qiming(Spic Wind Power Innovation Center,Shanghai 200233,China;Fujian Yongfu Power Engineering Co.,Ltd.,Fuzhou 350100,Fujian)

机构地区：[1]国家电投风电产业创新中心,上海200233 [2]福建永福电力设计股份有限公司,福建福州350100

出　　处：《陕西水利》2023年第2期11-13,共3页Shaanxi Water Resources

摘　　要：通过数值分析,对双桶吸力基础的倾斜承载力进行讨论,研究加载点位置、荷载倾角对倾斜承载力的影响。研究结果显示,随荷载倾角增大,双桶吸力基础倾斜承载力降低,对周围土体影响范围减小;任意加载点下,水平加载时基础的承载力最高。随加载点位置埋深增大,基础的承载力先增后减。荷载倾角较小时,承载力达到最大值时对应加载点位置位于基础侧壁中间位置;随荷载倾角增大,加载点位置对承载力的影响减弱;当倾角为90°时,加载点位置对承载力不产生明显影响。Numerical simulations were conducted to investigate the inclined bearing capacity of double-tube suction caisson.The influences of loading point position and loading angle on the bearing capacity were discussed.Results show that as the loading angle increases,the inclined bearing capacity decreases,and the range of disturbed soil around the caisson decreases.When the loading angle equals 0°,the maximum bearing capacity was obtained for various loading points.As the embedded depth of loading point moves downward along the caisson outer wall,the inclined bearing capacity firstly increases,then decreases.When the loading angle is relatively small,the maximum bearing capacity corresponding to the loading point locates 0.5 times caisson length.The effect of loading point on the capacity decreases as the loading angle increases.When the loading angle equals 90°,the influence of loading point can be ignored.

关 键 词：双桶吸力基础 倾斜荷载 加载点位置 荷载倾角 倾斜承载力 

分 类 号：P75[天文地球—海洋科学] TU471[建筑科学—结构工程]