Response to Info Request - Attachment 5 - Geotechnical Report MCU18-0015 & RAL18-0001 · MCU18/0015

J000635-002-R-Rev1                                                                              November 2018


boreholes. Given the permeable nature of the sands it is unlikely that a permanent water table will occur.
However, for a short-term case, a groundwater level was assumed at the top of the dense sands.
Soil parameters assumed for the modelling were based on the available geotechnical information, and Table
D4 of AS 4678-2002 Appendix 4 Soil and Material Properties.
Results and details of the stability modelling are shown on the attached Figure 3.
The modelling indicates that the proposed fill and retaining structures have acceptable factors of safety,
provided that the retaining structures are founded in the dense sand or stronger materials.

8.0     LIMITATIONS
Your attention is drawn to the document, Limitations which is attached in Appendix C.




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