? ? ? ? ? SCALE: 1:25 (A1) SECTION - THROUGH SHAFT - OPTION 2 5 - 6 - MIN. 450 REINFORCED CAST IN-SITU CONCRETE COVER EXISTING CONCRETE SHAFT LINING 5500Ø (TBC) UNKNOWN DEPTH UNKNOWN DEPTH SOIL WEATHERED ROCK 50 COVER EXISTING VENTILATION SHAFT EXISTING GROUND LEVEL (INCLINATION UNKNOWN) NOM. 400mm OVER TOP 3000-5000mm DEPENDING ON GROUND CONDITIONS 1 5 BUILT UP BERM PERMANENT STEEL SHUTTER SCALE: 1:50 (A1) PLAN - REINFORCED / PRECAST CONCRETE COVER 6 - 5 - REINFORCED CAST IN-SITU CONCRETE COVER EXISTING CONCRETE LINING EXISTING SHAFT COLLAR 5500Ø (TBC) MIN. 30MPa CONCRETE 400 1:25 0 2000 1200 800 1600 2400 mm @ A1 @ A3 1:50 1:50 1 0 3 2 4 5 m @ A1 @ A3 1:100 200 100 50 10 0 mm 300 mm Original Sheet Size A1 [841x594] SKETCH ONLY CLIENT PROJECT PROJECT NO. DRAWN DATE \\corp.pbwan.net\ANZ\ProjectsNZ\1C\1-C1875.07 Alderman Drive Palasade Wall\Home\210 Technical\210 Drawings\(C)Civil\+AutoCAD\Sketches for Waihi\Sketches - Waihi Details.dwg Plot Date 23/07/2021 @ 1:38 PM Auckland Office PO Box 5848 Auckland 1141 New Zealand +64 9 355 9500 02-03-2021 GOLDER WKP MINE DEVELOPMENT 3-AG397.00 V. GILES OPTION 2 - REINFORCED CAST IN-SITU CONCRETE COVER WKP MINE DEVELOPMENT - CONCEPT PERMANENT COVER NOTES: 1. ALL DIMENSIONS SHOWN ARE IN MILLIMETRES, UNLESS NOTED OTHERWISE. 2. ALL DIMENSIONS ARE INDICATIVE ONLY. 3. DESIGN SHOWN IS INDICATIVE AND HAS BEEN PROVIDED FOR CONCEPT ONLY. 4. BERM AROUND SHAFT OPENING GRADED TO LIMIT POOLING OF WATER ON SURFACE.
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