东南大学学报（英文版）2019，Vol.35Issue(2)：185-190,6.DOI:10.3969/j.issn.1003-7985.2019.02.007
基于模拟试验法的钻孔灌注桩自平衡试验转换系数分析
Conversion factor analysis of self-balanced loading test of cast-in-situ piles based on analogue test method
摘要
Abstract
Based on the characteristics of pile-soil interaction and the Mohr-Coulomb strength theory,a new method of determining the side friction at a pile-soil interaction is proposed.Combined with the actual engineering cases,the effectiveness of the analogue test method is verified by comparing it with the traditional anchor pile method and self-balanced method.Taking the self-balanced test of the bridge pile foundation in the Songhua River as an example,the conversion factor of sandy soil and weathered mudstone are confirmed by the analogue test method.The results show that the conversion factor of sandy soil and weathered mudstone in the Songhua River area should consider the geological conditions and the construction technology,etc.The standard values are relatively conservative.It is suggested that the engineering application should be properly revised.The recommended range of the conversion factor of sandy soil in this area is 0.65 to 0.85,and that of weathered mudstone is 1.0.关键词
钻孔灌注桩/自平衡法/模拟试验法/Mohr-Coulomb强度理论/转换系数Key words
cast-in-situ piles/self-balanced method/analogue test method/Mohr-Coulomb strength theory/conversion factor分类
建筑与水利引用本文复制引用
李舰航,李小娟,高鲁超,戴国亮,吴卫国..基于模拟试验法的钻孔灌注桩自平衡试验转换系数分析[J].东南大学学报（英文版）,2019,35(2):185-190,6.基金项目
The National Key Research and Development Program(No.2017YFC0703408),the National Natural Science Foundation of China(No.51478109,51678145,51878160). （No.2017YFC0703408）
