rock failure

[′räk ‚fāl·yər]

(geology)

Fracture of a rock that has been stressed beyond its ultimate strength.

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References in periodicals archive ?

Liu et al., "Experimental study on acoustic emission characteristics of rock failure under uniaxial multilevel loadings," Chinese Journal of Rock Mechanics and Engineering, vol.

Deformation Forecasting of Surrounding Rock Mass Based on Correlation between Frequency and Fracture Scale of Microseismicity

[11] carried out the uniaxial compression tests on rocks and analyzed the mechanical characteristics and acoustic emission characteristics of the whole process of rock failure. Wu et al.

Size Effect on Acoustic Emission Characteristics of Coal-Rock Damage Evolution

The study of rock fracture toughness is one of the current frequent directions of research in the area of rock failure. The present paper describes the effects of parameters influencing the resultant properties of rock materials (bending rate, rock moisture) in fracture toughness measurements of different kinds of rocks.

Study of the effect of moisture content and bending rate on the fracture toughness of rocks

The rock failure process always consists of four stages: microcrack closure, elastic deformation, crack growth and propagation, and final failure.

An Experimental Study on Cracking Behavior of Precracked Sandstone Specimens under Seepage Pressure

In the final analysis, rock failure is a state instability phenomenon driven by energy [1], and the dynamic failure of rock is a result of the rapid release of elastic energy aggregated inside a rock when failure reaches the intensity limit [2-4].

Energy Evolution Characteristics and Distribution Laws of Rock Materials under Triaxial Cyclic Loading and Unloading Compression

Research concerning rock failure and supporting technology in efflorescent oxidation zones is limited, and findings are preliminary.

Discrete Element Simulation of Roadway Stability in an Efflorescent Oxidation Zone

The ultimate strengths (the maximum stress in the case of rock failure in a short-term compression experiment) of 1# and 2# samples were 81.17 MPa and 82.88 MPa, respectively.

Experimental Study on Sedimentary Rock's Dynamic Characteristics under Creep State Using a New Type of Testing Equipment

In the past decade, the discrete element method has been the most common numerical calculation method used to analyze rock failure and widely applied in research on cracking and failure in brittle rock-like materials.

Numerical Analysis for the Progressive Failure of Binary-Medium Interface under Shearing

Study of the AE characteristics from small-scale rock failure to large-scale rock dynamic disasters as well as precursor laws of microseism involves the size effect of coal and rock mass.

Size Effect of Concrete Specimens on the Acoustic Emission Characteristics under Uniaxial Compression Conditions

[95, 96] extended NMM to study wave propagation across rockmasses and developed a continuum-discontinuum-coupled model to simulate rock failure under dynamic loads.

Dynamic Stability Analysis of Rockmass: A Review

A damage material and erosion criteria were used in the code to dominate the rock failure and to delete the elements.

Numerical Simulation of Fragment Separation during Rock Cutting Using a 3D Dynamic Finite Element Analysis Code

Additionally, based on the rock failure analysis process, the numerical direct shear test was performed to investigate the shear behavior of intermittent joints with different geometrical parameters.

Experimental and Numerical Study of the Failure Behavior of Intermittent Rock Joints Subjected to Direct Shear Load

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