摘要
文章通过复合地基载荷试验,确定水泥搅拌桩复合地基承载力特征值。结合得到的承载力特征值,假定单桩承载力发挥系数,通过有粘结强度复合地基承载力计算公式反演桩间土承载力发挥系数,并通过统计分析得出较合理的λ、β取值。
Through loading test the value of bearing capacity of cement mixing pile composite foundation were obtained. With the help of the bearing capacity factor,and assuming of the efficiency factor of bearing capacity of pile,through the formula of bond strength composite foundation bearing capacity,the bearing capacity factor of inter- pile was inversely calculated. Finally,the paper draws more rational λ、βvalue by statistical analysis
引文
[1]中华人民共和国建设部.GB50021-2001岩土工程勘察规范[S].北京:中国建筑工业出版社,2009.
[2]中华人民共和国建设部.JGJ79-2012建筑地基处理技术规范[S].北京:中国建筑工业出版社,2012.
[3]韩云山,白晓红,梁仁旺.垫层对CFG桩复合地基承载力评价的影响研究[J].岩石力学与工程学报,2004,23(20):3498-3503.
[4]夏旭阳,夏银飞,陈延猛.水泥搅拌桩承载力现场试验研究[J].土工基础,2005,19(06):16-18.
[5]李飞,刘松玉.水泥土桩复合地基承载力确定的几个问题[J].东南大学学报,1999,29(增):94-98.
[6]郑刚,顾晓鲁.对水泥土桩承载力确定的几个问题的分析[J].东南大学学报,2001,31(5):62-66.