Client : Contractor : Address : Address : Tangen 76 3 - 7 Place de l'Europe 4608 Kristiansand 78140 Vélizy-Villacoublay, France E18 Langangen - Rugtvedt Parcel 2 Draft Geotechnical Report Owner Parcel 1 2 3 2op CDE file name: NV-38-E18-LR##-EEE##-FFF###-G##_##-HH##_###-III###-JJJ###-KKK-LLL-####_01 Pagination : 522 pages Approved by Rev. Date Action Prepared Reviewed Authorized EGC 00 2021-06-25 First Edition BG MZ LSH 01 2021-08-11 Second Edition BG MZ LSH NV38E18 LR## EEE## FFF### G##_## HH##_### III### JJJ### KKK LLL #### 01 PP Client / Area / Functional Constructive Temp. / Sub- Discipl./ Zone Entity Space Component Type Number Rev Ste Complex system system components Profess. PIMS Nye Veier Document Number This document is the property of Nye Veier & EIFFAGE Génie Civil. Any distribution, or full or partial reproduction made without permission prior written notice from Nye Veier & EIFFAGE Génie Civil is prohibited. E18LR Parcel 2 – Draft Geotechnical Report Modification follow-up Rev. Date Detail of modifications carried out . Only admnistrative updates: Front page opdated, Document code added, 01 2021-08-11 Header (top of page) NV38E18LR##-KKK-LLL-####_01 Page 2 of 52 E18LR Parcel 2 – Draft Geotechnical Report Table of Content 1. OBJECT ............................................................................ 7 2. BACKGROUND DATA ............................................................ 8 2.1 GROUND INVESTIGATIONS ........................................................... 8 2.2 MODELS AND PROFILES ............................................................... 9 2.3 COORDINATE AND HEIGHT SYSTEM .................................................... 9 3. PROJECT PREREQUISITES ....................................................... 10 3.1 GEOTECHNICAL CATEGORY (GC), CONSEQUENCES/RELIABILITY CLASS (CC/RC), AND SUPERVISION LEVEL (DSL/IL) .................................................................. 10 3.2 FILL MATERIAL ....................................................................... 10 3.3 CONSTRUCTION PHASE EXECUTING ................................................... 10 4. TOPOGRAPHY AND GROUND CONDITIONS ................................. 11 4.1 LANNER ............................................................................ 11 4.2 HERREGÅRDSBEKKEN ................................................................ 12 4.3 SKJELSVIKDALEN .................................................................... 14 4.4 KJØRHOLT .......................................................................... 15 5. SOIL CONDITIONS .............................................................. 18 5.1 LANNER ............................................................................ 18 5.2 HERREGÅRDSBEKKEN ................................................................ 19 5.3 SKJELSVIKDALEN .................................................................... 20 5.4 KJØRHOLT ......................................................................... 21 6. PROPOSED CONSTRUCTION ................................................... 22 6.1 LANNER ............................................................................ 22 6.2 HERREGÅRDSBEKKEN ................................................................ 23 6.3 SKJELSVIKDALEN .................................................................... 24 6.4 KJØRHOLT .......................................................................... 25 7. AREA STABILITY ................................................................ 26 7.1 GENERAL ........................................................................... 26 7.2 PROCEDURE FOR INVESTIGATING AREA STABILITY ...................................... 27 7.3 AREA STABILITY LANNER .............................................................. 28 7.4 AREA STABILITY HERREGÅRDSBEKKEN .................................................. 35 7.5 AREA STABILITY SKJELSVIKDALEN ...................................................... 35 7.6 AREA STABILITY KJØRHOLT ........................................................... 36 NV38E18LR##-KKK-LLL-####_01 Page 3 of 52 E18LR Parcel 2 – Draft Geotechnical Report 7.7 SUMMARY QUICK CLAY ZONES ....................................................... 44 7.8 CONCLUSION....................................................................... 45 8. FOUNDATION DESIGN RECOMMENDATIONS ................................ 46 8.1 LANNER ............................................................................ 46 8.1.1 E18 ch. 3/450 – 4/300 ..................................................... 46 8.1.2 Fv. 30/ E18 ramp ............................................................ 46 8.2 HERREGÅRDSBEKKEN ................................................................ 47 8.2.1 e18 ........................................................................... 47 8.2.2 bridge over herregårdsbekken .............................................. 47 8.3 SKJELSVIKDALEN .................................................................... 47 8.4 KJØRHOLT .......................................................................... 47 9. EXCAVATION AND FILLING .................................................... 48 10. CRITICAL MOMENTS ......................................................... 49 11. FURTHER WORKS ............................................................ 50 12. DRAWINGS ................................................................... 51 13. ATTACHMENTS ........................ ERROR! BOOKMARK NOT DEFINED. NV38E18LR##-KKK-LLL-####_01 Page 4 of 52 E18LR Parcel 2 – Draft Geotechnical Report Figure Content Figure 1 terrain map from hoydedata.no ................................................................................................................ 11 Figure 2 soil deposit map from NGU ...................................................................................................................... 12 Figure 3 terrain map from hoydedata.no ................................................................................................................ 13 Figure 4 soil deposit map from NGU ...................................................................................................................... 13 Figure 5 terrain map from hoydedata.no ................................................................................................................ 14 Figure 6 soil deposit map from NGU ...................................................................................................................... 15 Figure 7 terrain map from hoydedata.no ................................................................................................................ 16 Figure 8 soil deposit map from NGU ...................................................................................................................... 17 Figure 9 Soil conditions Lanner ............................................................................................................................... 18 Figure 10 Soil conditions Herregårdsbekken ........................................................................................................... 19 Figure 11 Soil conditions Skjelsvikdalen .................................................................................................................. 20 Figure 12 Soil conditions Kjørholt ........................................................................................................................... 21 Figure 13 Planned road Lanner ............................................................................................................................... 22 Figure 14 Planned road Lanner – 3D model ............................................................................................................ 22 Figure 15 Planned road Herregårdsbekken ............................................................................................................. 23 Figure 16 Planned road Herregårdsbekken – 3D model .......................................................................................... 23 Figure 17 Planned road Skjelsvikdalen .................................................................................................................... 24 Figure 18 Planned road Skjelsvikdalen – 3D model ................................................................................................ 24 Figure 19 Planned road Kjørholt ............................................................................................................................. 25 Figure 20 Planned road Kjørholt – 3D model .......................................................................................................... 25 Figure 21 Quick clay zones .................................................................................................................................... 26 Figure 22 Possible areas with marine clay ............................................................................................................... 28 Figure 23 Plan over representative cross-sections in Lanner ..................................................................................... 29 Figure 24 Profile cross-section L1-L1 ...................................................................................................................... 29 Figure 25 Boreholes cross-section L1-L1.................................................................................................................. 29 Figure 26 Profile cross-section L2-L2 .....................................................................................................................