基于中欧规范桩基承载力的CPT法探讨
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摘要
随着"一带一路"的深入,海外项目也越来越多,但不同国家规范和标准也不同,常常给设计人员带来困惑。港口项目中,桩基承载力是设计的重中之重,欧美发达国家通常采用CPT法来设计,而中国很少采用。针对港口桩基规范中CPT法这一空白,结合实际工程对CPT法计算桩基承载力进行研究,分析中欧规范中的差异和区别,证明了中国建筑桩基技术规范中的公式也可行,在某些情况下甚至更保守,可以为类似工程所借鉴。
As for the Belt and Road, more and more overseas projects are provided, but different countries have different codes and standards, which add to designer confusion. In port projects, the bearing capacity of pile foundation is the most important design. CPT method is usually used in developed countries in Europe and America, but seldom used in China. In view of the blank of CPT method in port pile foundation code, this paper studies the calculation of pile foundation bearing capacity by CPT method in combination with practical engineering. By analyzing the differences and differences between European and European codes, it is proved that the formulas in China's technical code for building pile foundation are feasible, even more conservative in some cases, which can be used for reference by similar projects.
As for the Belt and Road, more and more overseas projects are provided, but different countries have different codes and standards, which add to designer confusion. In port projects, the bearing capacity of pile foundation is the most important design. CPT method is usually used in developed countries in Europe and America, but seldom used in China. In view of the blank of CPT method in port pile foundation code, this paper studies the calculation of pile foundation bearing capacity by CPT method in combination with practical engineering. By analyzing the differences and differences between European and European codes, it is proved that the formulas in China's technical code for building pile foundation are feasible, even more conservative in some cases, which can be used for reference by similar projects.
引文
[1]刘松玉,吴燕开.论我国静力触探技术(CPT)现状与发展[J].岩土工程学报,2004,(4):554-556.
[2]桩基工程手册编写委员会.桩基工程手册[M].北京:人民交通出版社,2008.
[3]JTS 167-2018码头结构设计规范[S].
[4]JGJ 94-2008建筑桩基技术规范[S].
[5]刘锦.孔压静力触探(CPTU)在桩基承载力计算中的应用研究[D].南京:东南大学,2008.
[6]唐贤强.地基工程原位测试技术[M].北京:中国铁道出版社,1993.
[7]Abolfazl Eslami,Bengt H Fellenius.Pile capacity by direct CPT and CPTU methods applied to 102 cases[J].Canadian Geotechnical Journal,1997.
[8]BS EN 1997-1:2004.Eurocode 7:Geotechnical design-part1:General rules[S].
[9]Michael Tomlinson,John Woodward.Pile Design and Construction Practice:Sixth Edition[M].2014.
[2]桩基工程手册编写委员会.桩基工程手册[M].北京:人民交通出版社,2008.
[3]JTS 167-2018码头结构设计规范[S].
[4]JGJ 94-2008建筑桩基技术规范[S].
[5]刘锦.孔压静力触探(CPTU)在桩基承载力计算中的应用研究[D].南京:东南大学,2008.
[6]唐贤强.地基工程原位测试技术[M].北京:中国铁道出版社,1993.
[7]Abolfazl Eslami,Bengt H Fellenius.Pile capacity by direct CPT and CPTU methods applied to 102 cases[J].Canadian Geotechnical Journal,1997.
[8]BS EN 1997-1:2004.Eurocode 7:Geotechnical design-part1:General rules[S].
[9]Michael Tomlinson,John Woodward.Pile Design and Construction Practice:Sixth Edition[M].2014.