Experiment on rock-mass deformation of large scale 3D-simulation in complex environment
LAI Xing-ping
WU Yong-ping
CAO Jian-tao
FAN Yong-ning
ZHANG Yan-li
CUI Feng
Abstract：Aimed at quantitatively prediction the process of rock-mass localized deformation regularity and their relating indicators of Nindong coal region in broken rock-mass induced historical seismicity and rich water environment, and comprehensive analyzed geophysical characteristics, loading framework and its mechanical performance, invalid indicators of rock-mass deformation and their quantitative discrimination methods, structure and flaw and characterization of simulative material, etc. , the largest scale 3D physical simulative assembly was constructed with integrated real-time monitoring system of multi-acoustics-optics-electricity-indicators, and experiment was undertaken with the constant and variable static-dynamical loading model. The acoustic emission (AE) characteristics and their regularity relating to rock-mass localized fracture were acquired, and distributing characteristics of radial and tangential stress in excavation disturbance were statistically and comparatively discriminated. The results obviously indicate that the durable damage and deformation may bring potentially after the crack and deformation of complex rockmass undergo oscillatory and quietness. Even,the characteristics will be found upon localized destabilization of composite coal and rockmass.
Keywords：rock-mass deformation3D-physical-simulationlocalization deformationacoustics-optics-electricity multiindicatorsvariable loading model
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 31-36 )