（1 振华海湾工程有限公司, 澳门 00853； 2 中国港湾工程有限责任公司, 北京  100027）

［摘要］结合工程实例，对微型桩应用相关基本设计参数如承载力、桩径和桩间距等的选取进行了技术探讨。在阐述微型桩复合地基受力特点的同时，特别强调了桩间土侧限和桩土共同作用的重要性，并对微型桩基础应用的研究重点和方向给出建议。

［关键词］微型桩； 复合地基； 桩土共同作用

中图分类号：TU473-1文献标识码：A文章编号：1002-848X(2017)15-0102-04

Practice and technology discussion on mini-pile foundation

Liu Bingmin1, Sun Huifeng2

(1 ZHEN HWA Harbour Construction Co., Ltd., Macau 00853， China; 2 China Harbour Engineering Company  Ltd., Beijing 100027, China)

Abstract:Combining with the engineering practices, a technical discussion for the selection of basic design parameters of mini-piles was expressed, including bearing capacity, pile diameter and  pile spacing，etc. In the meantime of elaborating the mechanical characteristics of mini-pile composite foundation, the importance of the soil between piles confining and the interaction of piles and soil were particularly emphasized. The advice of research emphasis and direction on the application of the mini-pile foundation were proposed.

Keywords:mini-pile; composite foundation; interaction of piles and soil

作者简介：刘兵民，本科，高级工程师，Email:bmforword@126.com。