摘要
对复杂地质大断面铁路隧道爆破振动能量对隧道工程的影响进行研究,解析其传播特性。首先分析振动能量传播损伤特性,寻找振动能量累计损伤对整体振动传播规律的影响因素;其次利用有限元模型模拟振动能量传播过程,切实获取传播特性相关数据与计算手段;再利用模拟数据和模型进行振动测试,进行柱形炸药包的振动能量传播特性分析;最后在实际工程中采集振动能量传播特性数据,应用Matlab软件将数据以图形方式表现,并解析图形中呈现的传播规律产生的原因。
The impact of blasting vibration energy of railway tunnels with complex geology and large cross-section on tunnel engineering is studied here,and its characteristics are analyzed.Firstly,this paper analyzes the characteristics of vibration energy propagation damage,and looks for the factors that affect the cumulative damage of vibration on the overall vibration propagation law.Secondly,finite element models are used to simulate the vibration propagation process and to obtain the relevant data and calculation methods of the propagation characteristics;then,by using simulation data and models,a vibration test is carried out to analyze the vibration energy propagation characteristics of the cylindrical explosive packages.Finally,vibration energy propagation characteristics data is collected and Matlab software is used to display the data in a graphical manner,and the causes of the propagation law presented in the graphics is analyzed.
出处
《现代城市轨道交通》
2021年第8期65-70,共6页
Modern Urban Transit
关键词
铁路隧道
复杂地质
大断面
爆破振动
传播特性
railway tunnel
complex geology
large section
blasting vibration
propagation characteristics
作者简介
王世辉(1981-),男,工程师。
