嵌岩桩垂直承载力的有限元分析(下)─—基岩强度和桩底沉渣厚度对承载性状的影响  

Finite Element Analysis on the Vertical Bearing Capacity of Rock-Socketed Pile (II) ─Influence of Base Rock Strength and Pile Bottom Sediment Thickness to the Bearing Properties

作　　者：陈斌[1] 卓家寿[1] 周力军[2] 

机构地区：[1]河海大学土木学院,江苏南京210098 [2]安徽省港航设计院,安徽合肥230011

出　　处：《水运工程》2001年第10期25-27,共3页Port & Waterway Engineering

摘　　要：讨论嵌岩桩在基岩强度变化和桩底沉渣厚度影响下的承载性状 ,得到嵌岩桩垂直承载力与基岩强度成指数关系的结论 ,并强调桩底沉渣不仅增加嵌岩桩的平均侧阻力和桩身沉降 。The bearing properties of rock-socketed pile under variation of base rock strength and thickness of pile bottom sediment are mainly discussed. The conclusion that the vertical bearing capacity of rock-socketed pile has an exponential relation with base rock strength is drawn. It emphasizes that pile bottom sediment not only increases the average shaft resistance and pile sediment of rock-socketed pile, but also raises the local stress of rock layer near the pile to a great extent.

关 键 词：桩基 嵌岩桩 垂直承载力 端阻力 侧阻力 嵌岩深度 荷载分担比 有限元分析 

分 类 号：TU473.11[建筑科学—结构工程]