梯段爆破过渡区岩体损伤的量化研究  

A quantitative study on the damage of rock mass in the transition zone during bench blasting

作　　者：闫建文[1] 徐传召[2] 

机构地区：[1]西安理工大学土木建筑工程学院,陕西西安710048 [2]机械工业勘察设计研究院,陕西西安710043

出　　处：《西安理工大学学报》2014年第2期220-224,共5页Journal of Xi'an University of Technology

基　　金：国家自然科学基金资助项目(41372304)

摘　　要：根据梯段爆破过渡区岩体的爆破破坏特性,监测和收集工程爆破过渡区振动信号,运用Hilbert-Huang变换(HHT)方法对过渡区爆破振动信号进行分析,量化振动信号在频域上的能量分布,结合BP神经网络建立梯段爆破过渡区岩体损伤的量化模型,实现梯段爆破过渡区岩体损伤的量化分析。According to the failure characteristics of rock mass in the transition zone during bench blasting,the monitored vibration signals in this area are analyzed based on the HHT method.By quantizing the energy distribution of vibration signals in the frequency domain,aquantitative model for the damage of rock mass in the transition zone during bench blasting is established by introducing the BP neural network.Then a quantitative analysis is made of rock mass damage in the transition zone during bench blasting.

关 键 词：梯段爆破 振动 HILBERT-HUANG变换 神经网络 

分 类 号：TU311[建筑科学—结构工程]