Appendix E - Geotechnical Report

                                              PROPOSED RECONFIGURATION OF A LOT
                                              216 BLACK MOUNTAIN ROAD, BLACK MOUNTAIN



        8.3         Recommendations ...................................................................................................................................... 12

        8.3.1            System Type ......................................................................................................................................... 12

        8.3.2            System Positioning................................................................................................................................ 13

        8.3.3            System Construction ............................................................................................................................. 13

        8.3.4            Maintenance and Inspection ................................................................................................................. 14

9.0     LIMITATIONS .......................................................................................................................................................... 14



TABLES
Table 1: Summary of Shrink Swell Index Results ................................................................................................................ 6

Table 2: Stability Risk Levels .............................................................................................................................................. 7

Table 3: Details of Qualitative Risk Assessment for Property (AGS 2007) ......................................................................... 7

Table 4: Retaining Structure Design Parameters .............................................................................................................. 11

Table 5: Horizontal and Vertical Setback/Separation Distances for Irrigation Areas ......................................................... 13


TEXT FIGURES
Text Figure 1: Extract of Plan of Development (courtesy Murray) ....................................................................................... 1

Text Figure 2: Site location and surrounds (courtesy of NC Interactive Maps, 2016).......................................................... 2

Text Figure 3: Proposed building area looking south-east (excavator at proposed new access for Lot 1) .......................... 3

Text Figure 4: Looking downslope towards gully at base of building area on proposed Lot 2 ............................................ 3

Text Figure 5: View looking east to Black Mtn Rd; and down to connection point for proposed driveway .......................... 3

Text Figure 6: Extract from Gympie Geology Map ............................................................................................................. 5

Text Figure 7: Extract from NC Landslide Hazard Mapping ................................................................................................ 6

Text Figure 8: Extract from SlopeW Modelling ................................................................................................................... 8

Text Figure 9: Footing depth required to minimise risk of undermining ............................................................................ 11



FIGURES
Figure 1: Site Plan



APPENDICES
APPENDIX A
Test Pit Reports and Explanatory Notes

APPENDIX B
Laboratory Test Certificate

APPENDIX C
AGS 2007 Practice Note Guidelines for Landslide Risk Management
Qualitative Terminology for Use in Assessing Risk to Property

APPENDIX D
Limitations



19 June 2018
Report No. 18127-001-Rev0                                                              iv