ECM_22343520_v1_Geotechnical Investigation

                                                         PROPOSED RENOVATIONS
                                                         2 ARAKOON CRESCENT, SUNSHINE BEACH

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

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

            3.0    METHOD OF INVESTIGATION ................................................................................................................................. 3

                   3.1         Fieldwork ...................................................................................................................................................... 3

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

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

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

                   4.3         Geology ........................................................................................................................................................ 7

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

                   4.5         Groundwater ................................................................................................................................................. 8

                   4.6         Surface Drainage .......................................................................................................................................... 8

            5.0    SLOPE STABILITY ASSESSMENT .......................................................................................................................... 9

                   5.1         Existing Conditions ....................................................................................................................................... 9

                   5.2         Stability Assessment................................................................................................................................... 10

                   5.2.1            Quantitative Assessment ...................................................................................................................... 11

            6.0    GEOTECHNICAL RECOMMENDATIONS .............................................................................................................. 14

                   6.1         Earthworks .................................................................................................................................................. 14

                   6.1.1            Site Preparation and Trafficability ......................................................................................................... 14

                   6.1.2            Excavations ........................................................................................................................................... 14

                   6.1.3            Filling..................................................................................................................................................... 15

                   6.2         Building Foundations .................................................................................................................................. 15

                   6.2.1            Indicative Site Classification.................................................................................................................. 15

                   6.2.2            Footing Design ...................................................................................................................................... 16

                   6.3         Temporary and Permanent Retention......................................................................................................... 17

                   6.4         Drainage ..................................................................................................................................................... 18

            7.0    CONCLUSION ......................................................................................................................................................... 19

            8.0    LIMITATIONS .......................................................................................................................................................... 19




             24 February 2023
             Report No. 22484-001-Rev0                                                              iv
Document Set ID: 22343520
Version: 1, Version Date: 16/03/2023