摘要
在宏单元模型的基础上编写了吸力贯入式板锚(Suction Embedded Plate Anchor,SEPLA)旋转上拔过程的Fortran计算程序,分析了锚眼的切向偏心和泥面角对SEPLA的埋深损失、承载力及板锚旋转角的影响.结果表明:SEPLA的锚眼应设计在板锚中心下方0.2B~0.4B(B为矩形锚板的宽度);随着泥面角的增加,埋深损失增加,但板锚稳定时的承载力系数变化不大,泥面角对锚板承载力系数的影响很小;切向偏心比对SEPLA的承载力影响很大,随着切向偏心比的减小,SEPLA的最大和最终承载力系数减小,当切向偏心比大于0时,最终承载力系数随着旋转角的增加,先快速增长,而后增长速率趋缓,当切向偏心比小于0时,最终承载力系数随着旋转角的增大而增大,到达极值后又开始衰减.
In order to analyze movement and bearing capacity of suction embedded plate anchor(SEPLA)during Installment,macro element is established to predict the rotation and uplift of SEPLA by Fortran programming.The effect of padeye offset(parallel to fluke)and mudline angle on loss of embedment,bearing capacity and inclination angle are studied.Results show that(1)Padeye offset shall be designed under the center of the plate anchor 0.2B~0.4B.(2)With the increase of mudline angle,the loss of embedment increases.The bearing capacity ratio of plate anchor when stable,it almost has no difference,and mudline angle has a little effect on the bearing capacity.(3)There is a large influence of padeye offset on bearing capacity of SEPLA,With tangential eccentricity ratio,both largest and ultimate bearing capacity ratio of SEPLA decrease.(4)While padeye offset is larger than 0,with inclination angle grows,ultimate bearing capacity ratio first increases rapidly and then it does slowly.Conversely,while padeye offset is less than 0,with inclination angle increases,ultimate bearing capacity ratio first increases and then it decreases after its peak.
作者
岳宏亮
王焱
张春会
田英辉
YUE Hongliang;WANG Yan;ZHANG Chunhui;TIAN Yinghui(School of Civil Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Department of Building Engineering,Shijiazhuang University of Applied Technology,Shijiazhuang 050081,China;School of Civil Engineering,Tianjin University,Tianjin 300072,China)
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2022年第2期50-57,共8页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家自然科学基金资助项目(51879183)
河北省自然科学基金资助项目(E2015208089)
河北省高等学校科学技术研究青年基金资助项目(QN2018089)。
关键词
吸力贯入式板锚
运动与承载特性
埋深损失
板锚旋转角
泥面角
suction embedded plate anchor
kinematics and bearing capacity
loss of embedment
inclination angle
mudline angle
