The Programme for New Century Excel-lent Talents in University (No.NCET-06-0649);the Natural Science Foundation of Hubei Province(No.2005ABA303)
According to explosion dynamics and elastic wave theory, the models of particle vibration velocity for simultaneous blasting and milliseeond blasting are built. In the models, influential factors such as delay interva...
The Program for New Century Excellent Talents in University ( No. NCET-06-0649);the Natural Science Foundation of Hubei Province (No.2005ABA303)
Field evidence has shown that large-scale and unstable discontinuous planes in the rock mass surrounding tunnels in rich water region are probably generated after excavation. The tunnel surrounding rock was divided in...