粉土地基强夯动孔压增长及地面变形规律研究  

Analysis on Dynamic Pore Water Pressure Increase and Deformation Law of Silt Foundation Treated with Dynamic Consolidation

作　　者：厉超[1,2] 李进[1] 陈晓光[1] 

机构地区：[1]山东大学土建与水利学院,济南市250061 [2]山东省路基安全工程技术研究中心,济南市250061

出　　处：《北方交通》2015年第8期39-42,共4页Northern Communications

基　　金：国家自然科学基金(51208284);山东省科技发展计划(2013GSF11603)

摘　　要：在黄河冲击平原进行了粉土地基强夯现场试验,现场监测动孔压及地面变形数据并对试验结果进行统计分析,得出如下结论:夯击次数和地层埋深影响动孔压增长,动孔压随夯击次数增加而增大,随地层埋深增加而减小;粉土地基动孔压的增长模式符合指数函数模型;提出了总沉降量作为止夯标准的新方法。Field test of dynamic consolidation was applied in silt foundation of Yellow River Flood plain. By monitoring and analyzing the results of dynamic pore water pressure and foundation deformation,conclusions were as follows： tamping times and soil depth affected dynamic pore water pressure,which increased as tamping times and decreased as soil depth increased; the relationship between dynamic pore water pressure and tamping times followed the exponential function; the total settlement control can be a new type of compaction stopping standard.

关 键 词：粉土地基 强夯 动孔压 地面变形 

分 类 号：TU478[建筑科学—结构工程]