高层建筑桩箱（筏）基础的优化设计

基于桩箱基础的工作特征，建立桩箱基础最小造价的优化设计数学模型。算例表明，优化设计具有主动改进设计的优势和明显的经济效益。

Optimum design for piled box (raft) foundation of tall building

Based on the behavior of piled box or piled raft foundation, the mathmatical model is established for minimizing the cast of foundation. With an example, it is illustrated that optimum design method shows its superiority over traditional design method and obvious economic benefit.