100 200 300 400 500m SCALE 0 138dBL Overpressure Zone Overpressure Levels 120dBL Overpressure Zone 126dBL Overpressure Zone 132dBL Overpressure Zone 114dBL Overpressure Zone 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. 1 P.O. Box 1 76 QLD. 4074. Australia 1 Mt.Ommaney Project Description: R1: Original Job No: HP2006-2 Telephone +61 7 3715 7599 Mobile 0419 196 369 Facsimile +61 7 3715 7588 Email [email protected] WKP Tunnel Access Drive - Expected overpressure levels from blasting of the initial 100 metre WKP Access drive with a 51mm diameter blasthole and a 3.6 metre advance. Maximum explosive weight of 5 kilograms per blasthole. Date Drawn: 5 April 2022 Ref No: WKP Access Overpressure
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