特殊土质条件下的强夯施工  

Construction of dynamic consolidation under special soil conditions

作　　者：于素健[1] 张明义[1] 刘辉[1] 

机构地区：[1]青岛理工大学,青岛266033

出　　处：《工程勘察》2009年第8期29-32,共4页Geotechnical Investigation & Surveying

摘　　要：结合具体的工程实例,对强夯法在特殊土质和特殊环境条件下的应用进行研究。提出了在厚度差别大且碎石含量多、周围房屋距离近的杂填土地基上强夯施工以及在粉煤灰回填土地基上设置排水沟后进行低能量强夯的施工工艺。建议了相应的工艺参数,包括砂石混合土回填分层分区、排水沟设置、夯点布置、夯击能量等,并给出了处理后地基的承载力等设计指标参考值。Based on several engineering cases, the practical application of dynamic miscellaneous fill with special soil properties and in complex construction conditions is analyzed. technology for applying dynamic consolidation to the reinforcement of the miscellaneous fill thickness difference which contains a lot of rubbles and closes to buildings is introduced. consolidation in The construction ground with big The construction technology with low-energy dynamic consolidation on flyash backfill ground companied with drainage ditches is put forward. The parameters including the backfill layering and zoning of sand-ntbble mixed soil, the setting of drainage ditches, the arrangement of tamping points and the tamping energy are suggested, and the capacity and other design indices of the treated foundation are proposed. bearing

关 键 词：强夯法 工艺参数 夯击能量 粉煤灰 杂填土 

分 类 号：TU751[建筑科学—建筑技术科学] TD235[矿业工程—矿井建设]