公开(公告)号：US20220284152A1

公开(公告)日：2022-09-08

申请号：US17630422

申请日：2020-10-22

Applicant: SHANDONG UNIVERSITY

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

IPC: G06F30/20

Abstract: 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.

公开(公告)号：US20190383714A1

公开(公告)日：2019-12-19

申请号：US16314460

申请日：2017-09-28

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Weimin YANG ,  Zongqing ZHOU ,  Liping LI ,  Shaoshuai SHI ,  Meixia WANG ,  Shuai CHENG ,  Xuguang CHEN ,  Chenglu GAO ,  Cong LIU

IPC: G01N3/02 ,  G01N3/12

Abstract: Fully automatic true triaxial tunnel and underground project model test system, including a triaxial loading device for loading model test piece, automatic data collection and analysis device, power system and control system; triaxial loading device includes test bench, vertical loading system, horizontal front and back, and left and right loading systems, and the vertical, horizontal front and back, and left and right loading systems apply three-way pressure to model test body; test bench functions for supporting, fixing, and providing counter-force; automatic data collection and analysis device includes micro optical fiber sensor embedded in model test piece, optical fiber monitoring system, micro pressure box and strain brick, and can collect multi-field information.