• Mobilisation to site of diaphragm walling equipment (cutters, cranes, workshops etc.);
• Diaphragm wall construction to -60m below ground level at the Production, Service and Mineral Transport System shafts; and
• Limited continuation of earthworks to create an area for future storage of spoil.
Mobilisation to site;
4a
NYM/2018/0212/CVC
22/06/2018
•
• Use of a VSM at the MTS Shaft, in place of the previously planned d-walling machines;
• Construction of the guide wall and strand jacks for the operation;
Installation of ancillary equipment;
•
Machine setup and installation of VSM;
•
• Excavation to -55m below shaft platform level (bspl);
Excavation to -120m bspl;
•
• Deposition of limited extractive material from within the first 120m of the MTS shaft into earthworks bunds; and
Grouting of Annulus.
•
• Construction of service chamber to a depth of 168.7m AOD;
5
NYM/2018/0349/CVC
20/07/2018
• Construction of permanent winder foundations to a depth of 197.17m AOD;
• Construction of permanent winder basement to a depth of 194.17m AOD;
• Construction of permanent building foundations to 202.2m AOD;
• Dewatering of Service Shaft foreshaft and platform to facilitate excavations;
• Excavation and construction of a working platform area on the western edge of the upper platform, with an AOD of 203.7m; and
• Stockpiling of extractive material for re-use.
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