公开(公告)号：US12031956B2

公开(公告)日：2024-07-09

申请号：US17524696

申请日：2021-11-11

Applicant: ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Qinyong Ma ,  Qingqing Su ,  Pu Yuan

IPC: G01N3/313 ,  E21D9/00 ,  G01N3/06 ,  G01N33/24 ,  G01V20/00

CPC classification number: G01N3/313 ,  E21D9/003 ,  G01N3/066 ,  G01N3/068 ,  G01N33/24 ,  G01V20/00 ,  G01N2203/001 ,  G01N2203/003 ,  G01N2203/0075 ,  G01N2203/0623 ,  G01N2203/0641

Abstract: A system of monitoring vibration of a blasting model test for a jointed rock mass and a method are provided. The system includes: a loading subsystem for three-way load, a model-surface blasting-vibration acquisition subsystem, and a model-interior dynamic stress-strain acquisition subsystem. The system and the method are provided, and a blasting model for a transparent jointed rock mass and a monitoring method that are obtained can analyze the influence of a joint inclination angle on propagation and attenuation laws of blasting stress waves in the jointed rock mass, and can analyze the influence of different millisecond blasting modes on the stability of an existing tunnel in the jointed rock mass, and can capture a real-time dynamic evolution process of cracks. The stress and strain measurement technologies used can perform omnibearing monitoring and recording for large deformations of surrounding rock under blasting load, and can resist the electromagnetic interference.