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作 者:黄绍梁 杜湧[1] 高建财 HUANG Shao-liang DU Yong GAO Jian-cai(College of Architecture and Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, Chin)
机构地区:[1]太原理工大学建筑与土木工程学院,山西太原030024
出 处:《中北大学学报(自然科学版)》2017年第1期55-59,共5页Journal of North University of China(Natural Science Edition)
基 金:山西省百人计划项目(800101-02030017);131人才专项经费(900198-02010018)
摘 要:吸力式组合桩的承载特性是海洋工程设计和施工中的一个关键问题,通过采用有限元分析方法对吸力式组合桩的极限承载特性进行计算,考虑了长径比、荷载作用角度和荷载作用点三个重要因素.探讨了荷载在不同长径比、作用角度和作用点下吸力式组合桩的极限承载力,根据承载力的变化规律得出最佳荷载作用点位置.结果表明,长径比越大,吸力式组合桩的极限承载力越大;荷载作用角度越小,吸力式组合桩的极限承载力越大,当荷载作用角度为0°时,吸力式组合桩的极限承载力最大;当荷载作用点从桩顶移动到桩底时,极限承载力呈现先上升后下降的趋势,且最佳荷载作用点位置随着长径比的增长会发生上移.The hearing capacity of triple clustered suction piles is a crucial problem in the design and construction of marine engineering. By using the finite element analysis method, the ultimate bearing capacity of triple clustered suction piles was calculated with the aspect ratios, the loading inclination angle and the load attachment point considered. Under different aspect ratios, action angle and action points, the ultimate bearing capacity of triple clustered suction piles were discussed. According to the change law of bearing capacity, the optimum load action point was obtained. The results show that the larger the ratio of length to diameter, the greater the ultimate bearing capacity of triple clustered suction piles. The smaller the load angle, the greater the ultimate load capacity of the triple clustered suction piles, when the load angle is 0 degree, the ultimate bearing capacity of triple clustered suction piles is the largest. When the load point moves from the top to the bottom, the ultimate bearing capacity offers upgrade firstly than descending latter tendency. And the optimal load acting point position can move up with the increase of the ratio of the length to diameter.
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