AN IDENTIFICATION OF GROUND VIBRATION IN NORTH-EAST OF THAILAND BY BLASTING METHOD

Abstract

This research reports an identification of safety distance for ground vibration, which has an effect on different types of structures in the Northeast of Thailand by blasting method. The data were collected from the fieldwork in the Northeast of Thailand through ground vibration by blasting method. The research results show that the heavier the blast, the higher the peak particle velocity in accordance with the distance. The lower frequency contributes to the accumulation. Further, the lower frequency will have a greater effect on structures than the higher frequency. This research can be used as a way to prevent the structures from the damage caused by blasting method and to help evaluate the safety distance for different kinds of structures to comply with the application of blasting method in the Northeast of Thailand. The data is based on the criteria of peak particle velocity and the frequency safe from ground vibration according to DIN 4150 proposed in Germany in order to control the peak particle velocity in the Northeast of Thailand and to achieve safety for different types of structures.

Keywords

• Blasting
• Ground vibration
• Peak particle velocity
• Safety distance
• Scale distance