An overview of rock mass motion research conducted abroad
Rock mass is discontinuous,and the structure of rock mass determines its dynamic response.Experi-mentations have demonstrated that rock mass motion induced by underground explosions has damage effects on un-derground installations.Based on the research on rock mass motion conducted by the US and Russia,this paper summarized the rock mass motion phenomenon observed in underground explosion;sorted out the typical features of rock mass motion,its occurrence and scale;discussed the damage mechanism of rock mass motion to underground installations and the controlling factors influencing the damage;and enumerated the observation techniques used in field experiments,such as ground motion monitoring,residual surface deformation measurements,and detection of internal rupture and slip in rock mass.Finally,it analyzed difficulties in this research area and proposed further ef-forts to be made in the future.
rock mass motionunderground explosiondamage to underground installationexperimental observation
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