静压桩极限承载力的时效分析
摘要:通过隔时复压等试验表明,静压桩的极限承载力随时间呈双曲线增大。静压桩时效性机理主要是触变恢复效应和固结效应。引入时间参数分析在粘土中沉桩时所引起的超静孔隙水压力,给出了考虑固结效应的超静孔隙水压力的解。考虑不确定性和模糊性的特点,根据静压桩的压桩力,推算桩的极限承载力,并给出了一种计算方法。
Abstract:The ultimate bearing capacity of jacked pile increases with the time in hyperbolically pattern. The mechanism of time effect can be interpreted as the effect of disturb-restore property and the effect of consolidation of the soil around the pile. Time is adopted to analyze excess pore water pressure due to driven pile in clay; and a formula is derived. According to the original construction force and considering fuzzy and uncertain, we can calculate the final bearing capacity of the pile. Acalculating method is given.
中文标题:
静压桩极限承载力的时效分析
Analysis on Time Limitation of the Ultimate Bearing Capacity of Jacked Pile
作者:
董光辉,张明义,郑丽
Dong Guanghui,Zhang Mingyi,Zheng Li
作者简介:董光辉,1979年生,男,汉族,安徽东至人,在读硕士研究生,主要从事桩基础方面的研究。E-mail:dgh8888@163.com
通讯地址:
青岛理工大学土木工程学院, 山东青岛 266033
CollegeofCivilEngineering,QingdaoTechnologicalUniversity,QingdaoShandong266033China
中图分类号:TU473.11
出版物:岩土工程技术
收稿日期:2005-04-11
关键词:静压桩,时效,模糊,极限承载力,复压
Key words:jacked pile,time effect,fuzzy,ultimate bearing capacity,re-pressure
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基金项目:
基金项目: 山东省教育厅科学基金(J02IJ04) 建设部科学基金(02-2-1.18)
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