Xi Yang Primary Author mixed material bibliography Bandung ITB Journal Publisher 2018 e English

Artikel Jurnal

hlm :737-757 Abstract High ground vibrations not only adversely affect the integrity of the structures in a mine area but also create inconvenience for the nearby population. In order to protect the Sanyou Mine slope in Tangshan, China from blasting vibration, the peak particle velocity in step topography must be accurately calculated. At present, the reflection coefficient of the stress wave at free interface is not considered in the equation for calculating the peak particle velocity in step topography. Therefore the accuracy of the peak particle velocity calculation is decreased in the side direction when the reflection coefficient changes. In this study, a 3D finite element analysis was employed for modeling of the blasting vibration. A series of field-testing experiments was conducted to measure the peak particle velocity. Then the reflection coefficient of the stress wave was calculated. Based on this, the principle of the peak particle velocity in step topography was explained. In addition, the application range of the equation in step topography was determined and a new equation for peak particle velocity calculation in step topography is proposed based on the numerical simulation analysis and field-testing experiment. Ilmu Teknik JETS 23375779 Perpustakaan Teknik UPI YAI JETS V50N6 Desember 2018 JETS1-001 Perpustakaan FT UPI YAI JETS V50N6 Desember 2018 JETS_ITB.png.png 58735 2023-01-20 10:03:51 2023-01-24 09:42:35 machine generated