摘要
以某深基坑开挖支护为工程背景,建立锁口钢管桩围护三维有限元模型。基于盾恩法确定了钢管桩嵌入深度,采用库仑经典土压力公式计算坑外主动土压力,应用"m"法计算坑底被动土压力。通过仿真计算得出各控制工况最大应力、变形的数值及发生位置,确定整个施工阶段的控制技术指标及参考值。
With a deep foundation excavation as engineering background,the three dimensional finite element model of locked steel pipe pile retaining was built.Based on steel pipe pile embedded depth determined by Dun＇en method,the out excavation active earth pressure was calculated with Coulomb classic soil pressure formula,the down excavation passive earth pressure was calculated with ＂m＂ method.Through simulation calculation,every control work condition maximum stress,deformation value and occurring position were calculated,the control technical index and reference value of integral construction stage were determined.
出处
《山西建筑》
2010年第18期82-84,共3页
Shanxi Architecture
关键词
深基坑
锁口钢管桩
围护结构
库仑经典土压力
“m”法
仿真分析
deep excavation
locked steel pipe pile
retaining structure
Coulomb classical soil pressure
＂m＂ method
simulated analysis
