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实际工程中 ,桩筏基础的平面形状、桩的布置方式多种多样。本文针对具有非规则形状筏板、非均匀布桩的桩筏基础 ,采用筏基无单元方法[1] 对筏板进行模拟 ,以桩与桩、桩与土相互作用的新模型[2 ] 为基础 ,建立了层状地基上桩筏基础与地基共同作用的一种新型分析方法。该方法便于布桩优化分析 ,并可进行桩与土相互作用的非线性分析。工程实例计算和分析表明 ,该方法是合理可行的 ,并具有较好的实用性和可靠性
In the actual project, the planar shape of piled raft and the layout of piles vary widely. In this paper, a new type of piled raft foundation with irregular shaped raft and non-uniform piling is designed. The raft base is simulated by the raft-based elementless method [1], and the new model [2] Foundation, established a new method of analyzing the interaction between piled raft foundations and ground in layered soil. The method is convenient for the optimization analysis of piles and can carry out the nonlinear analysis of the interaction between piles and soil. The calculation and analysis of engineering examples show that the method is reasonable and feasible, and has good practicability and reliability