Research on Numerical Simulation Model for Crack Growth Driven by Detonation Gas in High-Deep Rock Strata

Li Jing Chen; Jian Zheng; Cheng Ke Zhang

doi:10.4028/www.scientific.net/AMM.170-173.824

Paper Titles

Study on Determination Method for Parameters of Rock’s Shear Strength through Least Absolute Linear Regression Based on Symmetric Triangular Fuzzy Numbers
p.804

Consolidation Coefficient Calculation Based on Consolidation Rate Attenuation Method
p.808

Research on Engineering Characteristics of Negative Friction Resistance for Large-Diameter Caisson Pile
p.814

Appropriate Geometry Parameters Determination of Anti-Slide Pile with Stochastic Search Algorithms
p.819

Research on Numerical Simulation Model for Crack Growth Driven by Detonation Gas in High-Deep Rock Strata
p.824

Influences of Change of Plasma on Strength Property of Eolian Sand
p.830

Freezing Pressure and its Influencing Factors of Deep Clay Layer in the Huainan Mining Area
p.836

Numerical Simulation on the Distribution Evolution of Overburden Fractured Zone in Coal Mining and its Visual Detection
p.842

Soil Strength Reduction Method Induced by Variation of Water Content
p.847

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 170-173Research on Numerical Simulation Model for Crack...

Research on Numerical Simulation Model for Crack Growth Driven by Detonation Gas in High-Deep Rock Strata

Abstract:

The effect of detonation gas upon rock fracture is the cross-frontier research project of fluid dynamics coupling and rock dynamics of crack dynamic growth, having the important scientific significance and explicit application value. In the process of detonation gas driven fracture growth, the varying law of the denotation gas pressure distribution in cracks is inter-influent with the geometric morphology variations in crack growth. This paper analyzes the denotation gas flowing behaviors, establishes the flowing model for denotation gas in rock cracks and the models for the rock crack dynamic response. Also suggests the fluid-solid coupling model for the denotation gas flowing, rock crack response and the numerical model for simulating crack growth driven by the denotation gas. The simulation program is developed on the large-sized rock engineering finite element software (FINAL platform). This numerical analysis platform is used to carry out the systematic numerical experimental study of several main influencing factors of core problems concerning pressure fracture length.