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Mcmurdo Preliminary Geotech Report May 2016 GEOTECHNICAL ASSESSMENT REPORT McMurdo Station, Ross Island, Antarctica Submitted to: National Science Foundation C/- PAE (New Zealand) Ltd Private Bag 4747 Christchurch 8140 Report Number. 1535646_7407-002-R-Rev1 Distribution: REPORT Jeff Fenwick - PAE (New Zealand) Ltd David Winkler - Lockheed Martin GEOTECHNICAL ASSESSMENT REPORT - MCMURDO STATION, ROSS ISLAND, ANTARCTICA RECORD OF ISSUE Company Client Contact Version Date Issued Method of Delivery PAE (New Zealand) Ltd Jeff Fenwick Rev 0 4 April 2016 Email David Winkler Lockheed Martin Rev 0 4 April 2016 Email Brandon Neahusan PAE (New Zealand) Ltd Jeff Fenwick Rev 1 9 May 2016 Email David Winkler Lockheed Martin Rev 1 9 May 2016 Email Brandon Neahusan May 2016 Report No. 1535646_7407-002-R-Rev1 GEOTECHNICAL ASSESSMENT REPORT - MCMURDO STATION, ROSS ISLAND, ANTARCTICA REPORT LIMITATIONS Your attention is drawn to the document, “Report Limitations”, as attached in APPENDIX A. The statements presented in that document are intended to advise you of what your realistic expectations of this report should be, and to present you with recommendations on how to minimise the risks to which this report relates which are associated with this project. The document is not intended to exclude or otherwise limit the obligations necessarily imposed by law on Golder Associates (NZ) Limited, but rather to ensure that all parties who may rely on this report are aware of the responsibilities each assumes in so doing. May 2016 Report No. 1535646_7407-002-R-Rev1 GEOTECHNICAL ASSESSMENT REPORT - MCMURDO STATION, ROSS ISLAND, ANTARCTICA TABLE OF CONTENTS 1.0 INTRODUCTION ................................................................................................................................................. 1 2.0 SITE DESCRIPTION ............................................................................................................................................ 2 3.0 GEOLOGICAL SETTING ..................................................................................................................................... 3 4.0 GEOTECHNICAL INVESTIGATION ..................................................................................................................... 3 5.0 SUBSURFACE CONDITIONS ............................................................................................................................. 4 5.1.1 Fill ..................................................................................................................................................... 4 5.1.2 Natural ground and ground temperature ............................................................................................. 4 5.1.3 Ice ..................................................................................................................................................... 4 5.1.4 Environmental contamination ............................................................................................................. 4 6.0 BUILDING SPECIFIC GEOLOGIC MODELS AND DISCUSSION ......................................................................... 5 6.1 North of Scott Base Road ........................................................................................................................ 5 6.1.1 Water tanks ....................................................................................................................................... 5 6.1.2 Hazardous waste one ........................................................................................................................ 5 6.1.3 Hazardous waste two ......................................................................................................................... 5 6.1.4 Traverse operations ........................................................................................................................... 5 6.1.5 Waste handling and recycling ............................................................................................................. 5 6.1.6 Helicopter operations ......................................................................................................................... 5 6.2 West of Main Campus ............................................................................................................................. 6 6.2.1 Lodging ............................................................................................................................................. 6 6.3 Main Campus .......................................................................................................................................... 6 6.3.1 Fire, medical, recreation and lounge ................................................................................................... 6 6.3.2 Central services ................................................................................................................................. 6 6.3.3 Trade shop and field science support ................................................................................................. 6 6.4 South and East of Main Campus.............................................................................................................. 7 6.4.1 Data centre and IT support ................................................................................................................. 7 6.4.2 Crary science and engineering laboratory ........................................................................................... 7 6.4.3 Dive locker ........................................................................................................................................ 7 7.0 RECOMMENDATIONS ........................................................................................................................................ 9 7.1 General Design Considerations ............................................................................................................... 9 7.2 General Construction Considerations ....................................................................................................... 9 7.3 Active Layer Affected by Permafrost Processes ..................................................................................... 10 7.4 Bearing Capacity and Creep .................................................................................................................. 10 May 2016 Report No. 1535646_7407-002-R-Rev1 i GEOTECHNICAL ASSESSMENT REPORT - MCMURDO STATION, ROSS ISLAND, ANTARCTICA 7.5 Anchor Capacity for Foundations ........................................................................................................... 10 7.6 Retaining Wall Design Considerations ................................................................................................... 10 7.6.1 General ........................................................................................................................................... 10 7.6.2 Drainage ......................................................................................................................................... 11 7.6.3 Non-pole walls ................................................................................................................................. 11 7.6.4 Pole walls ........................................................................................................................................ 11 7.6.5 Conceptual design parameters ......................................................................................................... 11 7.7 Corrosive Soil Test ................................................................................................................................ 12 7.8 Earthworks............................................................................................................................................ 12 7.8.1 Clearing and site preparation............................................................................................................ 12 7.8.2 Fill material ...................................................................................................................................... 12 7.8.3 Compaction ..................................................................................................................................... 12 7.8.4 Trench backfill and underground utilidors .......................................................................................... 12 7.8.5 Surface drainage ............................................................................................................................. 13 7.8.6 Construction observation.................................................................................................................. 13 8.0 SEISMIC DESIGN PARAMETERS ..................................................................................................................... 13 9.0 CLOSURE ......................................................................................................................................................... 13 10.0 REFERENCES .................................................................................................................................................. 14 TABLES Table 1: Boreholes and planned buildings. .................................................................................................................... 8 Table 2: Water Soluble Chloride and Sulfate. ..............................................................................................................
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