| 隧洞爆破作用下洞内与露天区域振动能量特性分析 |
| |
| 引用本文： | 李国保,舒大强,蔡振. 隧洞爆破作用下洞内与露天区域振动能量特性分析[J]. 爆破, 2011, 28(2): 105-108. DOI: 10.3963/j.issn.1001-487X.2011.02.030 |
| |
| 作者姓名： | 李国保 舒大强 蔡振 |
| |
| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,武汉430072;武汉大学,水资源与水电工程科学国家重点实验室,武汉430072;武汉大学,水资源与水电工程科学国家重点实验室,武汉430072 |
| |
| 摘 要： | 运用基于功率谱的爆破地震能量分析方法,对九龙江北引二期改造工程隧洞掘进爆破的洞内和洞口邻近区域振动能量分布特征进行研究.结果表明:洞内振动能量分布极为分散,100Hz以上的能量成分超过75%,而洞口邻近区域振动能量主要集中在主频附近频段内,100Hz以下能量成分达到85%以上.认为对于30 Hz以下能量比例较大的爆破振...
|
| 关 键 词： | 隧洞爆破 爆破振动 功率谱 能量分布 |
Energy Characteristic Analysis of Vibration Inside and Outside Tunnel under Blasting Effect |
| |
| LI Guo-bao,SHU Da-qiang,CAI Zhen. Energy Characteristic Analysis of Vibration Inside and Outside Tunnel under Blasting Effect[J]. Blasting, 2011, 28(2): 105-108. DOI: 10.3963/j.issn.1001-487X.2011.02.030 |
| |
| Authors: | LI Guo-bao SHU Da-qiang CAI Zhen |
| |
| Affiliation: | LI Guo-bao,SHU Da-qiang,CAI Zhen(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
| |
| Abstract: | An energy analysis method for blasting vibration signals based on power spectrum was utilized,based on the measurement data from tunnel blasting of Jiulong-jiang second phase diversion project,the energy distribution characteristic inside and outside tunnel were studied.The results show that for inside tunnel the energy distribution is so scattered with frequency,over 75 percent energy ingredient is above 100 Hz;But for the area adjacent to opening,the vibration energy mainly concentrates the main frequency... |
| |
| Keywords: | tunnel blasting blasting vibration power spectrum energy distribution |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
