王为群¹，刘亚宇¹，王  强¹，曹云锋¹，冯  云²
    （1 中国纺织工业设计院，北京100037；2 中材地质工程勘察研究院，北京100102）

[摘要] 在滁州市某聚酯工程中，采用载体桩技术与CFG桩法相结合，取其各自优点，发展成新的地基处理方法——载体桩复合地基。该方法既能充分发挥桩问土的承载力，又能缩短桩长、减少地基的变形，与其他的桩基础设计相比，可缩短工期、降低投资成本。
[关键词] 载体；三击贯入度；褥垫层；复合地基

    Design of composite foundation with composite bearing base and cement-flyash-graved pile
    Wang Weiqun¹, Liu Yayu¹, Wang Qiang¹, Cao Yunfeng¹, Feng Yun²
    (1 China Textile Industrial Engineering Institute, Beijing 100037, China; 2 Zhongcai Geo-engineering Exploration Institute)

Abstract: A new technology of ground treatment that adopted the advantages of both ram-compaction piles with composite bearing base and cement-flyash-graved piles was introduced. This technology developed the method of ground treatment. The author introduced the principles and method of design for ram-compaction piles with composite bearing base and cement-flyash-graved pile, and how form composite foundation, and single pile bearing capacity and characteristic value of composite foundation bearing capacity and calculation of settlement were introduced detailedly.
Keywords: composite bearing base; depth of three beat; bedtick layer; composite foundation