水力发电学报2011，Vol.30Issue(6)：127-132,6.
基于相对位移反应谱分析的岩石爆破震动损伤评估
Study on damage fracture of rock blasting using spectrum of relative displacement response
孙新建 1孙建生 2刘婧3
作者信息
- 1. 天津大学建工学院,天津300072
- 2. 太原理工大学,太原030024
- 3. 天津市防汛抗旱指挥部办公室,天津300074
- 折叠
摘要
Abstract
The spectrum of relative velocity response of Laxiwa hydropower station to the excitation of monitored and measured blasting velocity is computed in this paper,and the damage fracture of rock blasting is analyzed by the theory of relative displacement response spectrum.The results show that the depth of rock blasting has a high correlation with the integral value of relative displacement response spectrum and the product of this integral value and the duration of blast vibrations,and that rock damping has insignificant influence on correlation coefficient.Thus it is feasible and practical to use fitting equation of rock damage depth as a comprehensive measure of blast effect for engineering design.关键词
水利水电工程/岩石损伤/反应谱/爆破震动/速度输入/相对位移反应谱Key words
conservancy and hydropower engineering/rock damage/response spectrum/blast vibration/velocity input/relative displacement response spectrum分类
建筑与水利引用本文复制引用
孙新建,孙建生,刘婧..基于相对位移反应谱分析的岩石爆破震动损伤评估[J].水力发电学报,2011,30(6):127-132,6.
