深埋桩多解设计的应用

APPLICATION OF MULTIPLE SOLUTIONS TO DESIGN OF DEEP EMBEDDED PILES

基坑支护工程中应用的支护桩,按其受力特征分,通常有3种典型的特征形式:浅埋桩、悬臂桩和深埋桩。浅埋桩和悬臂桩的解是唯一的,而深埋桩的解却远不止1个,而是有无数个。对于任何一个特定的支护工程,在进行基坑支护工程的深埋桩设计时,完全可以根据特定工程的具体条件,经优化设计选择出一最佳支护方案。通过一个基坑支护改造工程实例,说明了深埋桩多解设计在支护桩工程设计中的意义。

Based on the earth pressure acting on piles, the retaining piles used in the deep foundation excavation can be divided into three types. They are shallow embedded piles, cantilever piles, deep embedded piles. There is only one solution in shallow embedded piles or cantilever, but many solutions in deep embedded piles. It＇s completely possible to select an optimal scheme in the design of deep embedded piles according to special condition. By analyzing a deep foundation excavation case, the significance of multiple solutions of deep embedded oiles in the design of deep excavations is explained.