Geotechnical Report (1) · MCU21/0212

                                            PROPOSED RESIDENCE
                                            66 SEAVIEW TERRACE, SUNSHINE BEACH

Table of Contents
1.0   INTRODUCTION ........................................................................................................................................................ 1

2.0   PROPOSED DEVELOPMENT ................................................................................................................................... 1

3.0   METHOD OF INVESTIGATION ................................................................................................................................. 2

      3.1         Fieldwork ...................................................................................................................................................... 2

      3.2         Geotechnical Laboratory Testing .................................................................................................................. 2

4.0   RESULTS OF INVESTIGATION ................................................................................................................................ 3

      4.1         Site Description............................................................................................................................................. 3

      4.2         Topography................................................................................................................................................... 6

      4.3         Geology ........................................................................................................................................................ 8

      4.4         Subsurface Conditions.................................................................................................................................. 8

      4.5         Groundwater ................................................................................................................................................. 9

      4.6         Geotechnical Laboratory Test Results .......................................................................................................... 9

      4.7         Surface Drainage ........................................................................................................................................ 10

5.0   SLOPE STABILITY ASSESSMENT ........................................................................................................................ 10

      5.1         Existing Conditions ..................................................................................................................................... 10

      5.2         Stability Assessment................................................................................................................................... 11

      5.2.1            Quantitative Assessment ...................................................................................................................... 12

6.0   GEOTECHNICAL RECOMMENDATIONS .............................................................................................................. 15

      6.1         Earthworks .................................................................................................................................................. 15

      6.1.1            Site Preparation and Trafficability ......................................................................................................... 15

      6.1.2            Excavations ........................................................................................................................................... 16

      6.1.3            Filling..................................................................................................................................................... 17

      6.2         Building Foundations .................................................................................................................................. 17

      6.2.1            Indicative Site Classification.................................................................................................................. 17

      6.2.2            Footing Design ...................................................................................................................................... 17

      6.3         Temporary and Permanent Retention......................................................................................................... 19

      6.4         Drainage ..................................................................................................................................................... 20

7.0   CONCLUSION ......................................................................................................................................................... 20

8.0   LIMITATIONS .......................................................................................................................................................... 20




23 November 2021
Report No. 21370-001-Rev0                                                              iv