预钻孔孔径对部分挤土桩挤土效应的影响研究  

Study on the influence of the diameter of pre-driven borehole on soil-displacement effect of partly soil-displaced piles

作　　者：罗嗣海[1] 侯龙清[1] 胡中雄[2] 潘小青[1] 黄松华[1] 

机构地区：[1]华东地质学院资源与环境工程系,江西抚州344000 [2]同济大学地下建筑与工程系,上海200092

出　　处：《岩土力学》2002年第2期222-224,共3页Rock and Soil Mechanics

摘　　要：推导了具有一定初始半径的圆柱形孔扩张的弹塑性解,据此讨论了预钻孔取土打桩时,预钻孔孔径大小对挤土效应的影响。The elastoplastic solution to the expansion of cavity with initial diameter is presented.Based on the deduced solution,the influence of the diameter of pre-driven borehole on the soil-displacement effect during pile-driving is analyzed.

关 键 词：圆柱形孔 扩张 孔径 挤土效应 挤土桩 

分 类 号：TU753.3[建筑科学—建筑技术科学] TU473.1