摘要
运用圆孔扩张理论对挤扩支盘桩成型过程的挤土效应进行了分析。得到了支盘成型过程中桩周土的临界压力pc、极限扩张压力pu及塑性区最大半径r1max的计算方法和挤扩设备挤土时施加的作用力的计算方法。同时得到了在特定场地土条件下挤土臂张角不同时桩周土的塑性区的变化范围。
The squeeze effect of squeezed pile is analyzed based on the theory of the Vesic hole expansion.The critical pressure and the top pressure of the soil around the pile are obtained.The calculation method of the pressure affected on the instrument is proved,Change range of the plastic zone when the instrument effects the soil around the pile is obtained.
出处
《工业建筑》
CSCD
北大核心
2007年第z1期880-882,共3页
Industrial Construction
基金
北京市教委资助项目
关键词
圆孔扩张理论
成型过程
塑性区
theory of the Vesic hole expansion process of shaping plastic zone
