摘要
应用动力响应的时程分析原理,采用动力有限元数值模拟方法,以某具体工程为例,分析岩石边坡在爆破振动下的扰动作用,不同部位对振动加速度、位移及其应力的响应特点。结果表明,采用时程分析法提出的边坡速度、位移、应力能比较真实地反映动力响应结果以及爆破振动的扰动作用。
Based on the principle of dynamical response time history analysis,taking a practical engineering as example,the simulation with the dynamic FEM was used to analyze the disturbance effect of blasting vibration on rock slope,the characteristics of acceleration response,displacement response and stress response in different parts of rock slope.The results showed that the vibration velocity,displacement value and stress value of slope obtained by means of time-history analysis can reflect more objectively and truly the dynamic response results of slope in blasting vibration and the disturbance effect of blasting.
出处
《矿业研究与开发》
CAS
北大核心
2010年第5期91-93,106,共4页
Mining Research and Development
关键词
爆破振动
时程分析
动力响应
动力有限元
露天边坡
Blasting vibration
Time-history analysis
Dynamical response
Dynamic finite element
Open-pit slope
