中美欧日桩基承载力设计规范比较

针对中美欧日各国关于桩基设计方法的异同,在设计理论基础、单桩轴向抗压承载力、单桩抗拔承载力和水平承载力等方面进行了综合对比分析。并以工程实例为基础,计算了桩的抗压、抗拔极限承载力和折算允许值,得出中国规范安全裕度适中、水平承载力计算方法涵盖面广、可向海外推广的结论,并提出了工程设计中的关注点。

Design code comparison of pile foundation bearing capacity in China,the United States,Europe and Japan

Aiming at the similarities and differences among Chinese code,API code,Eurocode and Japanese code of pile foundation design,we analyze and compare the design basis theory,ultimate bearing capacity of compressive pile,ultimate bearing capacity of tensile pile and transvers bearing capacity of pile.Based on the actual projects,we calculate the ultimate bearing capacity of compressive pile,ultimate bearing capacity of tensile pile and conversion allowable bearing capacity.The results show that the safety margin of Chinese code is moderate.Thus it could be spread to overseas projects.We also put forward the attention points in actual use.