Surface Vibration Levels 3 mm/s Vibration Contour 2 mm/s Vibration Contour 4 mm/s Vibration Contour 5 mm/s Vibration Contour 1 mm/s Vibration Contour Explosive Weights More than 15 kilograms Between 9 and 12 kilograms Between 12 and 15 kilograms Between 6 and 9 kilograms Between 3 and 6 kilograms Less than 3 kilograms 200 400 600 800 1000m SCALE 0 H G F E D C B J I N K M L A H G F E D C B J I N K M L A 1 5 4 3 2 6 7 10 9 8 1 5 4 3 2 6 7 10 9 8 In preparing this drawing, HP have made certain assumptions. We have assumed that all information and documents provided to us by the Client or as a result of a specific request were complete, accurate and up to date. Where we have obtained information from a Government register or database, we have assumed that the information is accurate. Where an assumption has been made, we have not made any independent investigations with respect to the matters the subject of that assumption. We are not aware why any of the assumptions are incorrect. Created using TunnelTRAP Software Revision History Plate No. 2 P.O. Box 1 76 QLD. 4074. Australia 1 Mt.Ommaney Date Drawn: 21 July 2021 Project Description: Ref No: Gladstone Blasting R1: Original Job No: HP2003-2 Telephone +61 7 3715 7599 Mobile 0419 196 369 Facsimile +61 7 3715 7588 Email [email protected] OCEANAGOLD - Gladstone Pit - Modelled vibration contours from blasting of the Gladstone Pit and back calculated explosive weights to comply with a vibration criterion of 5mm/s at sensitive receivers. (Max)
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