HIGH RESOLUTION SEISMIc REFRAcTION TOMOGRAPHY FOR DETERMINING DEPTH OF BLAST INDUcED DAMAGE IN A MINE WALL
نویسندگان
چکیده
High resolution seismic refraction tomography has proved to be a useful tool to effectively estimate depth of blast induced damage in a mine face. Excavation blast damage can be as shallow as 1 to 2m and requires resolution at a fraction of a meter for effective imaging. We used an accelerometer with flat frequency response to 1000Hz to record data at spacings of approximately 0.25 to 0.5m along mine walls.
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