Attempt to reducing the ground vibration level due to blasting activity based on the evaluation of blasting geometry
| dc.contributor.author | Timothy Lambat Anak Bunyam | |
| dc.date.accessioned | 2021-03-04T03:50:57Z | |
| dc.date.available | 2021-03-04T03:50:57Z | |
| dc.date.issued | 2018-06 | |
| dc.description.abstract | Ground vibration result from blasting activity at Penjom Gold Mine has been classified as safe and secure based on the standard vibration level according to Departmen of Minerals and Geoscience of Malaysia with 0.4 mm/s – 2.39 mm/s actual PPV. However, the resident who live around the area within 1700 meters radius may still can feel the ground vibration that could damage their houses. Therefore, it required geometric design and blasting patterns which is expected to be able to reduce the level of ground vibration. The ground vibration is measured using vibrometer and expressed in peak particle velocity (PPV). The actual PPV value is required to find the SD (scaled distance) value with 𝑑√𝑤 formula in order to calculate the difference between actual and theoretical PPV. This calculation is also to obtain the k and m constants which later used to calculate the proposed geometric design and blasting pattern which results in a minimum PPV value of 1700 meters radius. The comparison of PPV values on actual blast geometry with PPV values in the proposed geometry design indicates an average ground vibration reduction of 5% of actual PPV. From 0.4 mm/s – 2.39 mm/s becomes 0.018 mm/s – 0.558 mm/s. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/11743 | |
| dc.language.iso | en | en_US |
| dc.title | Attempt to reducing the ground vibration level due to blasting activity based on the evaluation of blasting geometry | en_US |
| dc.type | Other | en_US |
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