摘要
p-y曲线法是目前常用且较为合理的分析横向受荷桩的方法,但对这一方法尚缺乏比较全面的认识和准确的评价。文章从粘性土中单桩、砂土中单桩和各种土中群桩三个方面评述了国内外p-y曲线法的研究现状,分析各个p-y曲线法特点和适用性。在此基础上提出了p-y曲线法研究和应用中需要改进或加强的建议,即深入研究桩周土极限抗力确定方法以提高p-y曲线法精度;研究和编制p-y曲线法通用程序以推广其工程应用;深入研究工程实践中急需的大直径桩和群桩p-y曲线。
Though the p-y curve method has been increasingly considered as a rational method for analyzing laterally loaded piles in recent years, a more overall understanding and a suitable appraisement of the method are still in need. In this paper, researches on p-y curve method were summarized and reviewed in three aspects: single piles in cohesive soils, single piles in sands and pile groups. Detailed discussions were made on the characteristics and serviceability of the p-y curve method, based on which three proposals were given in order to make improvements of the p-y curve method, i.e. to make more specific studies on the method for determining ultimate resistance of soils to pile stems, to develop computer programs of the method for more generic purposed applications and to make extensive researches on p-y curves for large diameter piles and pile groups which are urgently needed in engineering practice.
出处
《中国港湾建设》
北大核心
2005年第2期1-4,共4页
China Harbour Engineering
关键词
p—y曲线
极限土抗力
大直径桩
群桩效应
p-y curve
ultimate soil resistance
large diameter piles
group effects
