The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2024
Filed:
Oct. 23, 2020
Shandong University, Shandong, CN;
Shucai Li, Jinan, CN;
Zongqing Zhou, Jinan, CN;
Liping Li, Jinan, CN;
Weimin Yang, Jinan, CN;
Chunjin Lin, Jinan, CN;
Shaoshuai Shi, Jinan, CN;
Chenglu Gao, Jinan, CN;
Chengshun Shang, Jinan, CN;
Yang Geng, Jinan, CN;
Songsong Bai, Jinan, CN;
SHANDONG UNIVERSITY, Jinan, CN;
Abstract
A discrete element method contact model building method includes: selecting a filling body in a disaster-causing structure to obtain a change rule of cumulative loss of the filling body; performing test simulation, and determining a relation function of each group of corresponding mesoscopic mechanical parameters in each time period and mesoscopic parameters of a DEM contact model representing a change rule of macroscopical parameters of the filling body; embedding each mesoscopic parameter relation function into an existing particle contact model, performing test simulation, and updating a fracture failure criterion of the contact model according to a corresponding relation of macro-mesoscopic strength during model failure; and based on a seepage failure indoor test, building a seepage failure discrete element calculation model, and simulating the seepage failure process of a rock and soil mass by using the obtained particle contact model and the fracture criterion of the particle contact model.