Abstract
There are a series of human or natural activities, including earthquakes, explosions, and rockbursts, which have caused a number of safety accidents in geotechnical engineering. This review paper summarized the theories and methods for dynamic stability analysis of rockmass. First, numerical simulation methods, including finite element method (FEM), discrete element method (DEM), finite difference method (FDM), boundary element method (BEM), discontinuous deformation analysis method (DDA), and numerical manifold method (NMM), are summarized. Second, the laboratory experiments, containing shaking table test, split-Hopkinson pressure bar test (SHPB), improved true-triaxial test, dynamic centrifugal model test, acoustic emission (AE) technique, and dynamic infrared monitoring, are considered. Third, the in situ tests including microseismic (MS) technique, velocity tomography, stress-strain monitoring, and electromagnetic radiation monitoring are considered. Finally, some comprehensive analysis methods based on statistical theories are also provided. It is pointed out that the study foundation for the dynamic stability of rockmass is weak to explain the mechanism. So, a set of general comprehensive theories integrating the different methods, including theoretical analysis, numerical methods, laboratory experiments, and in situ tests, should be completely established. This is the most effective way for further investigation.
Highlights
Guest Editor: Gaofeng Zhao ere are a series of human or natural activities, including earthquakes, explosions, and rockbursts, which have caused a number of safety accidents in geotechnical engineering. is review paper summarized the theories and methods for dynamic stability analysis of rockmass
Because of the diversity and complexity of earthquakes, prediction of earthquake is very difficult. e researches on the failure mechanism of geotechnical engineering including slopes, underground adits, and other geotechnical engineering under the seismic condition provide a scientific reference for the selection of engineering seismic performance, which is currently the hotspot in rock mechanics
In order to reduce the environmental pollution caused by the explosions of toxic and harmful gases, CO2 blasting has been gradually developed in the fields of mining engineering and geotechnical engineering [12,13,14]
Summary
Because the NMM can deal with both continuous and noncontinuous problems, it is extremely suitable for simulating the deformation law of jointed rockmasses, and it has developed rapidly in the field of rock mechanics and engineering. Erefore, to study the dynamic stability problems of different rockmasses, choosing different numerical simulation methods has a certain influence on the reliability of the analysis results. E concept of permanent displacement was proposed, and various numerical simulation software (including FLAC, UDEC, 3DEC, and DDA) were combined to study the stability of the slope under the action of earthquake loads [104]. DDA has been applied in the dynamic stability of rockmasses and is constantly maturing It is suitable for large deformation analysis in geotechnical engineering and discontinuous failure of rockmasses.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
