25289-001-Rev0 - The Esplanade (1)-compressed

Contents
1.    Introduction ............................................................................................................................................................ 1
2.    Proposed Development ....................................................................................................................................... 1
3.    Method of Investigation ......................................................................................................................................3
      3.1 Fieldwork ...................................................................................................................................................................... 3
      3.2 Geotechnical Laboratory Testing ........................................................................................................................ 3
4.    Results of Investigation ...................................................................................................................................... 4
      4.1 Site Description ......................................................................................................................................................... 4
      4.2 Topography................................................................................................................................................................. 6
      4.3 Geology ........................................................................................................................................................................ 7
      4.4 Subsurface Conditions ............................................................................................................................................ 8
      4.5 Groundwater............................................................................................................................................................... 8
      4.6 Geotechnical Laboratory Test Results ............................................................................................................... 9
      4.7 Surface Drainage ....................................................................................................................................................... 9
5.    Slope Stability Assessment ............................................................................................................................... 10
      5.1 Existing Conditions................................................................................................................................................. 10
      5.2 Stability Assessment .............................................................................................................................................. 10
           5.2.1     Quantitative Assessment .................................................................................................................... 13
6.    Geotechnical Recommendations ..................................................................................................................... 16
      6.1 Earthworks ................................................................................................................................................................. 17
           6.1.1   Site Preparation and Trafficability................................................................................................... 17
           6.1.2   Excavations .............................................................................................................................................. 18
           6.1.3   Filling ......................................................................................................................................................... 18
      6.2 Building Foundations ............................................................................................................................................ 19
           6.2.1   Indicative Site Classification .............................................................................................................. 19
           6.2.2   Footing Design....................................................................................................................................... 19
      6.3 Temporary and Permanent Retention ............................................................................................................ 20
      6.4 Drainage ..................................................................................................................................................................... 22
7.    Conclusion ............................................................................................................................................................ 22
8.    Limitations ............................................................................................................................................................ 22




Geotechnical investigation
19 November 2025 | 25289-001-Rev0                                                                                                                                                       iii