1. Mapping Underground Soils in New York City
Mapping NYC
Below Ground
Level
George Deodatis
Dept. of Civil Engineering
Columbia University
Plus: transportation tunnels, foundations of
Kaohsiung, Taiwan underground gas explosions.
There is soil in between the various
utilities, tunnels, foundations, etc.
Soil is not uniform!
Soil heterogeneity in depth.
Soil heterogeneity in depth.
Soil Heterogeneity in 2D.
Soil Heterogeneity in 2D.
Soil heterogeneity is of
course a 3D phenomenon.
Underground water further
complicates the situation.
Detailed description of soil
properties and of their
inherent heterogeneity in 3D
is absolutely critical for the
behavior of buried utilities,
tunnels and foundations,
both under normal and under
extreme conditions.
The number of available
geotechnical borings in New
York City, although large,
cannot cover every location.
There are gaps without any
borings.
Sophisticated techniques
have been developed to infer
soil properties in between
geotechnical borings
(accounting for
Thank you!
Below Ground
Level
George Deodatis
Dept. of Civil Engineering
Columbia University
Plus: transportation tunnels, foundations of
Kaohsiung, Taiwan underground gas explosions.
There is soil in between the various
utilities, tunnels, foundations, etc.
Soil is not uniform!
Soil heterogeneity in depth.
Soil heterogeneity in depth.
Soil Heterogeneity in 2D.
Soil Heterogeneity in 2D.
Soil heterogeneity is of
course a 3D phenomenon.
Underground water further
complicates the situation.
Detailed description of soil
properties and of their
inherent heterogeneity in 3D
is absolutely critical for the
behavior of buried utilities,
tunnels and foundations,
both under normal and under
extreme conditions.
The number of available
geotechnical borings in New
York City, although large,
cannot cover every location.
There are gaps without any
borings.
Sophisticated techniques
have been developed to infer
soil properties in between
geotechnical borings
(accounting for
Thank you!