The testing and analyzing of the vibration data with multi-waves and multi-components excited by dynamic load of construction on loess slopes
To evaluate the effects of the compaction pole construction on the stability of the high cut loess slope for ensuring the safety of the construction, we acquired the strong vibration data excited by the construction at the Han Gu Guan tunnel exit of the intercity High-speed Railway connecting Zheng Zhou to XiAn cities. And the analysis results show that the vibration propagation in the loess slope is related to the topographic conditions, and there are strong topographic amplification effects at the slope turn points. And the analysis of three-component data reveals that the topographic effects on the vibration propagation is of obvious orientation features. As the main vibration mode caused by the compact load of the diesel pile hammer is that of Rayleigh wave, its ellipse polarization features may lead the particle moving trace to be much complex, which may be another key factor to the slope failure besides the topographic amplification effect. The research supplies important evaluation factors for the stability analysis of the loess slopes under the dynamic conditions.
Multip-waves Multi-components Loess slope Dynamic Response Topographic amplification effect
Yan Sheng Zhengping Liu Guodong Bai Chengming Gong Dan Yang Yuan Lei Xin Zhang Yongxiang Zheng
Southwest Jiaotong University, Chengdu 610031, China Southwest Jiaotong University, Chengdu 610031,China Southwest Jiaotong University, Chengdu 610031, China
国际会议
成都
英文
156-161
2010-06-14（万方平台首次上网日期，不代表论文的发表时间）