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GeoStructures, Inc.King of Prussia, PA
December 2012
Integrating soiland structure Identifying the uniqueness
In every project
Creative solutionsTo common problems
www.geostructures.net
Construction Monitoring
GeoStructures, Inc.King of Prussia, PA
December 2012
Centrifuge Foundation Analysis 3-D Rendering
2-D Model using QUAKW/W
Amplitude of Vibration
Abaqus 3-D mesh
0
0.1
0.2
0.3
0.4
0.5
0.6
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Sp
ectr
a; R
esp
onse
Acc
eler
atio
n S
a (g
)
Period T (Second)
GeoStructures, Inc.King of Prussia, PA
December 2012
Uncontrol led Fill
Earthquake Ground Motionat Bedrock
Marine Clay
Alluvial Sand
Glacial Soi l
Critical Single Column
-10 0 10 20 30 40
Ele
vatio
n - fe
et
-40
-30
-20
-10
0
10
20
QUAKW/W Model for N-S Single Column Section
Site Specific Analysis
Earthquake Records
Design Response Spectra
East - West Criticl Section
-180 -160 -140 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300
Elevation - feet
-80-70-60-50-40-30-20-10
0102030405060708090
100
QUAKW/W Model for E-W Critical Section
GeoStructures, Inc.King of Prussia, PA
December 2012
Example of sinkhole in King of Prussia, PA Sinkhole
repair method: excavation & bridging
Compaction
Grouting
Geologic mapping: taking geologic measurements of rock structure.
GeoStructures, Inc.King of Prussia, PA
December 2012
Combining Foundation and PermanentExcavation Supports
X (ft)
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65
Elevation (ft)
360
365
370
375
380
385
390
395
400
405
410
415
420
X (ft)
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65
Elevation (ft)
360
365
370
375
380
385
390
395
400
405
410
415
420
FEM Analysis: Deformed Mesh (magnified 30
times)
Helical Pile Underpinning
Jet Grouting Underpinning
GeoStructures, Inc.King of Prussia, PA
December 2012
Drill Rig Nail Installation
Shotcrete InstallationVerification Test Nail Setup
Geomembrane Liner
Geofoam between the Two Walls
GeoStructures, Inc.King of Prussia, PA
December 2012
Soil Rock Auger Downhole inspection
Rock Socket
Drilling
Concrete Placement
GeoStructures, Inc.King of Prussia, PA
December 2012
Diesel/Benzene
dispersion plumes
contours
Vertical Piles of Mixing ZonesGroundwater Contour in the
Carbonate Aquifer