dsd-int 2016 building a 3d model of the subsurface on a local scale - hijma
TRANSCRIPT
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Creating 2D/3D subsurface models
for local/regional use
Marc Hijma
Applied Geology and Geophysics
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27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
iMOD – not only for groundwater related studies!
![Page 3: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/3.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
iMOD – not only for groundwater related studies!
![Page 4: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/4.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
iMOD – not only for groundwater related studies!
![Page 5: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/5.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
• Cone penetration tests
iMOD – not only for groundwater related studies!
![Page 6: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/6.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
• Cone penetration tests
iMOD – not only for groundwater related studies!
![Page 7: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/7.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
• Cone penetration tests
• 3D-voxel models
iMOD – not only for groundwater related studies!
![Page 8: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/8.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
• Cone penetration tests
• 3D-voxel models
GeoTOP – TNO-Geological Survey of The Netherlands
iMOD – not only for groundwater related studies!
![Page 9: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/9.jpg)
27 oktober 2016
iMOD – not only for groundwater related studies!
• Easy to use tool to visualize large sets of subsurface data • Boreholes
• Cone penetration tests
• 3D-voxel models
• Shapefiles
• Ascii-grids
![Page 10: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/10.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
• Cone penetration tests
• 3D-voxel models
• Shapefiles
• Ascii grids
• Easy to use tool to create 2D/3D models of the subsurface
iMOD – not only for groundwater related studies!
![Page 11: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/11.jpg)
27 oktober 2016
• Easy to use tool to visualize large sets of subsurface data • Boreholes
• Cone penetration tests
• 3D-voxel models
• Shapefiles
• Ascii grids
• Easy to use tool to create 2D/3D models of the subsurface
• Two examples • Stochastic subsurface scenario’s below Dutch dikes
• Complex geology below a new highway
iMOD – not only for groundwater related studies!
![Page 12: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/12.jpg)
Stochastic subsurface scenarios
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Stochastic subsurface scenarios
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3D model of the geology below a highway
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Stochastic approach using iMOD
14 november 2016
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iMOD: 2D sections along a dike.
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Viewing all relevant subsurface information
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Creating subsurface scenario’s
8 juni 2015
• Each scenario gets its own probabity of occurence
• Depth of each layer: modal, maximum, minimum
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14 november 2016
Combined probability of failure
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14 november 2016
Complex geology below a new highway
![Page 21: DSD-INT 2016 Building a 3D model of the subsurface on a local scale - Hijma](https://reader031.vdocument.in/reader031/viewer/2022030215/58895fa81a28abef658b6413/html5/thumbnails/21.jpg)
Tunnel: more seepage than expected
14 november 2016
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Unexpectedly connected sand layers
14 november 2016
SAND
CLAY
CLAY
PEAT
SHORT CIRCUIT
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14 november 2016
3D problem!
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14 november 2016