取土贯入数值模拟分析Study on sampling penetration by numerical simulation

采用“位移贯入法”对取土贯入的全过程作了数值模拟

得到了取土器贯入土体过程中周围土体的位移矢量和应变场

选用竖向应变最为评价土样的扰动程度是合理的

位移贯入法

以及对以中心土样为重点的取土来说

数值模拟

） Abstract： The process of sampling penetration was simulated by the FEM software ABAQUS according to “displacement penetration method”

And the displacement vector and strain fields of surrounding soils in the process of sampling penetration was obtained

The results show that the upper end of sample uplifts significantly

Meanwhile, it is reasonable using longitudinal strain to evaluate the degree of disturbance for the sampling, of which the center soils is important

Keywords： sampling penetration;numerical simulation;displacement penetration method;disturbance 下载PDF阅读器 PDF全文下载： 初稿 （ 188 ） 作者简介： 通信联系人： 【收录情况】 中国科技论文在线： 左文荣

 取土贯入数值模拟分析[EB/OL]

北京：中国科技论文在线

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