双向螺旋挤土灌注桩单桩极限承载力计算方法  

Instruction and calculation methods of soil displacement screw piles

作　　者：刘钟[1] 郭钢[1] 邢占东 王奋 

机构地区：[1]中冶建筑研究总院有限公司,北京100088 [2]威海建设集团股份有限公司,山东威海264200

出　　处：《岩土工程学报》2013年第S2期1204-1207,共4页Chinese Journal of Geotechnical Engineering

基　　金：国家财政部基金项目(财企[2006]376);国家住房和城乡建设部基金项目(2008-K2-40)

摘　　要：在论述了双向螺旋挤土灌注桩新技术优势及其在我国的快速发展和工程应用现状基础上,阐述了国内外3种双向螺旋挤土灌注桩的极限承载力计算方法及其适用条件。结合北京市及山东省的两个现场试桩实测资料,对3种极限承载力计算方法的应用结果进行了对比分析。分析结果表明:中国京冶(2010)方法和山东省标准的经验参数法是适合国内双向螺旋挤土灌注桩工程设计的简便实用方法。Based on the description of the development trends and the engineering application status of the new technology of the soil displacement screw pile(SDSP) in China, three calculation methods and their applicable conditions for the ultimate bearing capacity of SDSP are expounded. Additionally, the results of the three calculation methods are analyzed comparatively based on the field test data in Beijing and Shandong Province in China. The analysis results show that the calculation method of China Jingye(2010) and the empirical parameter method of SDSP in the technical code of Shandong Province are the most simple and practical methods for SDSP in China.

关 键 词：挤土桩 桩基础 极限承载力 计算方法 

分 类 号：TU473.1[建筑科学—结构工程]