公开(公告)号：US20220284152A1

公开(公告)日：2022-09-08

申请号：US17630422

申请日：2020-10-22

申请人： SHANDONG UNIVERSITY

发明人： Shucai LI ,  Liping LI ,  Zongqing ZHOU ,  Chenglu GAO ,  Shaoshuai SHI ,  Shuai CHENG ,  Zhuohui LI ,  Daosheng ZHANG ,  Wenfeng TU ,  Meixia WANG

IPC分类号： G06F30/20

摘要： A peridynamics method and system for tunnel rock mass failure water inrush catastrophe simulation. A calculation model is discretized into material points, and a virtual boundary layers is set on an outer side of a boundary of the calculation model as an object to which boundary conditions are applied; a size of a horizon of the material points is selected to form a neighborhood matrix; a crustal stress is made equivalent to a stress boundary condition of the calculation model, a karst cave water pressure is made equivalent to a normal pressure, and a displacement constraint and tunnel support are converted into a displacement boundary condition; a speed and a displacement of the material point are solved, and local damage situations are recorded; and a tunnel construction process is simulated by material point dormancy after initial balance calculation is stable.