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