多塔大底盘结构的桩筏基础优化设计-建筑结构 关键词］大底盘；多塔楼；大跨度；桩筏基础；优化 [gap=718]Keywords:big chassis; multiple towers; big span; piles-raft foundation; optimization
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The key point in the piled raft foundation design is to determine the proportion of load carried by piles and raft and the effect of diminished settlement of piles.
桩筏基础设计的关键在于确定桩筏的荷载分担比及桩对减小沉降的作用。
The method did not involve the discretization of the soil or piles and it could be used to analyze piled raft foundation as simply as to analyze raft foundation.
应用该方法不需要划分桩土体单元，其分析复杂程度基本等同于弹性地基板基础，且分析过程简洁。
Introduced the method for analysis and calculation of coaction between raft foundation, piles and ground for an expressway office, it is useful for reference of the same project.
介绍某高速公路管理处考虑筏板-桩-地基共同作用的分析与计算方法，以供类似工程参考。
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