Quantification of displacement and particle crushing around a penetrometer tip

作     者：Eshan Ganju Fei Han Monica Prezzi Rodrigo Salgado Juliana Spohr Pereira Eshan Ganju;Fei Han;Monica Prezzi;Rodrigo Salgado;Juliana Spohr Pereira

作者机构：Lyles School of Civil Engineering Purdue University 

出 版 物：《Geoscience Frontiers》 (地学前缘（英文版）)

年 卷 期：2020年第11卷第2期

页      面：389-399页

核心收录：

学科分类：08[工学] 0708[理学-地球物理学] 080104[工学-工程力学] 0815[工学-水利工程] 0704[理学-天文学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：funded by the National Science Foundation under Grant No. 1562538 The support of NSF is gratefully acknowledged 

主　　题：Crushing DIC Penetrometer X-ray CT 

摘      要：Particle crushing occurs near the tip of a penetrometer and influences the development of the tip *** study particle crushing near a penetrometer tip,a cone penetrometer was monotonically jacked and then load-tested in medium dense and dense silica sand samples prepared in a halfcylindrical calibration chamber with viewing *** the tests,images of the advancing penetrometer and the surrounding soil were taken using digital cameras and analyzed to obtain the displacement and strain fields around the penetrometer using the Digital Image Correlation(DIC)***,soil samples were collected near the tip of the penetrometer using a novel agarimpregnation technique and digitized using an X-ray *** digitized samples were analyzed to reconstruct the three-dimensional models of individual particles,generating the gradation and relative breakage parameters of the sand around the cone penetrometer.