Related Experiment Video
Updated: Aug 16, 2025

Blast Quantification Using Hopkinson Pressure Bars
Published on: July 5, 2016
The Revealed Mechanism of Rock Burst Based on an Innovative Calculation Method of Rock Mass Released Energy
Wenlong Zhang1, Jicheng Feng2, Ji Ma3
1School of Civil Engineering and Architecture, Qingdao Huanghai University, Qingdao 266427, China.
Abstract:
It is very necessary to study the mechanism of rock burst, which is related to the safe construction of many geotechnical projects. Previous studies have shown that small trigger stress will lead to large energy release, but the specific conditions that cause the release and how to quantify the energy are urgent problems to be solved. In this study, an innovative calculation method of rock mass energy release is proposed, and the calculated release energy is consistent with the monitoring results of field monitoring equipment. The revealed mechanism of rock burst reflected is that under the condition of a large-ratio pre-state stress field (mostly > 2.5), a small trigger stress field will lead to a large amount of energy release under “late butterfly shape” or “final butterfly shape” of the plastic zone. This study reveals the key factor of rock burst, which plays an important reference role for the mechanism research, subsequent monitoring and treatment method of rock burst.
Related Concept Videos
Conservation of Energy: Application
Stress-Strain Diagram - Brittle Materials
Impact Loading
In cases of elastic deformation,...
Strain-Energy Density
In the elastic region of a material, the relationship between the stress and the strain is linear and follows Hooke's Law. The strain energy density in this...
Impact: Problem Solving
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
Elastic Strain Energy for Shearing Stresses

