工程地质学报Issue(2)：233-237,5.
爆破冲击作用下岩体损伤范围研究
DAMAGE ZONE OF SANDSTONE UNDER BLASTING IMPACT
摘要
Abstract
This paper deals with the two damage forms:rock mass crushing and plastic changes in underground engineering.It is based on Mohr-Coulomb criterion.The radii of crushed circle under the action of shock wave is obtained.It applies Von Mises yielding criterion to calculate the rock plastic zone under stress wave.It uses the KUBELA 420 explosive as an example.For sandstone in Chongqing under blasting load,the radii of crushed circle is not more than 1.7 times of charging radius and plastic zone radius does not exceed 25.06 times of charging radius.The prediction is close to the numerical simulation results.关键词
爆炸力学/应力波/压碎圈/塑性区/数值模拟Key words
Mechanics of explosion/Stress wave/Crushed circle/Plastic zone/Numerical simulation分类
矿业与冶金引用本文复制引用
王小委,陈洪凯,廖云平..爆破冲击作用下岩体损伤范围研究[J].工程地质学报,2014,(2):233-237,5.基金项目
国家自然科学基金（11272185），重庆市国土科技项目（cqgt120301）资助． （）
