Geotechnical Investigation

                                            PROPOSED CALILE HOTEL NOOSA DEVELOPMENT
                                            3 – 7 SERENITY CLOSE, NOOSA HEADS

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

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

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

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

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

      4.2         Topography................................................................................................................................................... 5

      4.3         Geology ........................................................................................................................................................ 6

      4.4         Subsurface Conditions.................................................................................................................................. 6

      4.5         Geotechnical Laboratory Test Results .......................................................................................................... 7

      4.6         Groundwater ................................................................................................................................................. 7

      4.7         Surface Drainage .......................................................................................................................................... 7

5.0   SLOPE STABILITY ASSESSMENT .......................................................................................................................... 8

      5.1         Existing Conditions ....................................................................................................................................... 8

      5.2         Slope Stability Assessment .......................................................................................................................... 8

      5.2.1            Qualitative Assessment........................................................................................................................... 8

      5.2.2            Quantitative Assessment ...................................................................................................................... 10

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

      6.1         Development Limitations ............................................................................................................................ 14

      6.2         Earthworks – General ................................................................................................................................. 14

      6.2.1            Site Preparation and Trafficability ......................................................................................................... 14

      6.2.2            Excavations ........................................................................................................................................... 15

      6.2.3            Filling..................................................................................................................................................... 15

      6.3         Building Foundations .................................................................................................................................. 16

      6.3.1            Indicative Site Classification.................................................................................................................. 16

      6.3.2            Footing Design ...................................................................................................................................... 16

      6.4         Temporary and Permanent Retention......................................................................................................... 17

      6.5         Drainage ..................................................................................................................................................... 18

7.0   SUMMARY & CONCLUSIONS................................................................................................................................ 19

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




7 October 2022
Report No. 22239-001-Rev0                                                              iii