公开(公告)号：US20240302259A1

公开(公告)日：2024-09-12

申请号：US18578801

申请日：2023-06-02

Applicant: Qingdao University of Technology

Inventor： Nan YAN ,  Xiaoyu BAI ,  Jichao YIN ,  Dongdong MA ,  Yamei ZHANG ,  Shaoshuai XU ,  Yongliang XU ,  Guangliang ZHANG ,  Chenglu LV ,  Jiashan WANG ,  Zeqiang XU ,  Haojie DIAO

IPC: G01N3/60 ,  G01N3/08 ,  G01N33/24 ,  G06F30/20 ,  G06F119/14

CPC classification number: G01N3/60 ,  G01N3/08 ,  G01N33/24 ,  G06F30/20 ,  G06F2119/14

Abstract: The present disclosure provides a method and system for predicting pile tip resistance based on a damage constitutive model of mudstone and relates to the technical field of geotechnical engineering. In view of the existing problem of difficult calculation of quantitative analysis on the bearing performance of a dynamic driven pile of a mudstone foundation and the damage characteristics of mudstone around the pile, a damage constitutive model of mudstone with a damage variable D determined based on a stress state and associated with a rock failure criterion is established; model parameters are determined based on results of a triaxial test; a relationship between a critical damage variable and a confining pressure is established; and the damage characteristics of the mudstone around the dynamic driven pile are analyzed, whereby pile tip resistance is calculated. The requirements of quantitative analysis on the damage characteristics of a pile tip are met.