碎石桩复合地基有限元分析

Step-loading FEM Analysis of Gravel-Pile Composite Foundation

应用有限元对碎石桩复合地基进行了数值模拟，求取了碎石桩复合地基的极限荷载，分析了复合地基的受力状况，探讨了碎石桩的鼓胀破坏过程及规律。数值分析结果表明增量加载有限元法是分析碎石桩地基的一种很有效的手段，它在获得极限载荷的同时，能够详尽地阐述碎石桩复合地基的受力状况及碎石桩的鼓胀特性。

Gravel - Pile Composite Foundation was analyzed by step - loading FEM. The bearing capacity of Gravel - Pile Composite Foundation was obtained. Additional stress distribution of Gravel - Pile Composite Foundation and the failure process of Gravel - Pile Composite Foundation were studied in detail. The numerical analysis results show that step - loading FEM is an effective way to analyze Gravel -Pile Composite Foundation by which the bearing capacity can be got and additional stress distribution and the bulge property of Gravel - Pile Composite Foundation can be described clearly.