我国岩土工程施工技术的成就——复合桩

作者:刘金波 柳致富 邓亚光 戴斌 郭金雪
单位:中国建筑科学研究院有限公司国家建筑工程技术研究中心 华东岩土工程集团有限公司 劲桩科技有限公司 北京荣创岩土工程股份有限公司
摘要:复合桩是我国自主研发的一种桩型,由混凝土芯桩和外围同心的水泥土环构成,即在混凝土桩外围有一定厚度的水泥土环,二者结合在一起,借助混凝土桩的刚度将荷载传到深部土层,借助水泥土环将侧摩阻力传到桩周围的土体。复合桩具有受力合理、质量稳定、对环境影响小、造价低、施工速度快、适用范围广、耐久性好等优点,具有很好的应用前景。
关键词:基础复合桩芯桩水泥土环施工技术
作者简介:刘金波,研究员,中国建筑科学研究院城市地下空间设计研究院院长,E-mail:cabrljb@126.com。
基金: -页码-:69-75,112
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Achievements of Geotechnical Engineering Construction Technology in China——Composite Pile
LIU Jinbo LIU Zhifu DENG Yaguang DAI Bin GUO Jinxue
(National Construction Engineering Technology Research Center of China Academy of Building Research East China Geotechnical Engineering Group Co., Ltd. Jinzhuang Technology Co., Ltd. Beijing Rongchuang Geotechnical Engineering Co., Ltd.)
Abstract: Composite pile is a kind of pile type independently developed in China, which is composed of concrete core pile and concentric cement soil ring. That is, there is a certain thickness of cement soil ring around the concrete pile, and the two are combined to transfer the load to the deep soil layer with the help of the stiffness of concrete pile, and transfer the side friction to the soil around the pile with the help of cement soil ring. Composite pile has the advantages of reasonable stress, stable quality, little impact on the environment, low cost, fast construction speed, wide range of application and high durability, which has a good application prospect.
Keywords: foundations; composite pile; core pile; cement soil sheath; construction
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