RFI Response (rec. 4.09.25) 25038-001-Rev0 · MCU25/0060

Contents

1.    Introduction ............................................................................................................................................................ 1
2.    Proposed Development ....................................................................................................................................... 1
3.    Method of Investigation ......................................................................................................................................2
4.    Results of Investigation .......................................................................................................................................3
      4.1 Site Description ......................................................................................................................................................... 3
      4.2 Topography................................................................................................................................................................. 6
      4.3 Geology ........................................................................................................................................................................ 6
      4.4 Subsurface Conditions ............................................................................................................................................ 7
      4.5 Groundwater............................................................................................................................................................... 8
      4.6 Surface Drainage....................................................................................................................................................... 8
5.    Slope Stability Assessment .................................................................................................................................9
      5.1 Existing Conditions................................................................................................................................................... 9
      5.2 Stability Assessment .............................................................................................................................................. 10
           5.2.1     Quantitative Assessment .................................................................................................................... 11
6.    Geotechnical Recommendations ..................................................................................................................... 13
      6.1 Development Limitations..................................................................................................................................... 13
      6.2 Earthworks ................................................................................................................................................................. 13
           6.2.1   Site Preparation and Trafficability................................................................................................... 13
           6.2.2   Excavations .............................................................................................................................................. 14
           6.2.3   Filling ......................................................................................................................................................... 14
      6.3 Building Foundations ............................................................................................................................................ 15
           6.3.1   Indicative Site Classification .............................................................................................................. 15
           6.3.2   Footing Design....................................................................................................................................... 15
      6.4 Temporary and Permanent Retention ............................................................................................................ 17
      6.5 Drainage ..................................................................................................................................................................... 18
7.    Conclusion ............................................................................................................................................................. 19
8.    Limitations ............................................................................................................................................................. 19




Proposed Residential Development
25 August 2025 | 25038-001-Rev0                                                                                                                                                         iv