【摘要】 采用修正的p-y曲线方法,分析了桩基础振动过程中桩土之间由于土体塑性变形导致的桩土脱开现象,给出了计算桩土脱开现象的数值模拟方法,并据此分析计算了中国渤海湾JZ20-2MUQ平台的桩基础动力特性,得到了桩基础振动过程中桩土脱开的区域,分析了桩土之间的脱开对桩基础动力响应的影响等问题。更多还原

【Abstract】 The separation between the interfaces of pile and soil due to soil plastic deformation during the vibration of piles is analyzed. Through a modified p-y curve method, a numerical simulation method for analyzing the separation is presented. As an example, one pile of a jacket platform, JZ20-2 MUQ, which is located in the Bohai Sea of China, is analyzed and the separation range together with its effect on the dynamic characteristics of the pile is studied.更多还原