3 tied-back grade beams beach
TRANSCRIPT
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Tied-Back Grade Beams
for Stabilization ofState Route 7 in
Jefferson County, Ohio
Tied-Back Grade Beams
for Stabilization ofState Route 7 in
Jefferson County, Ohio
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
OutlineOutline
Project Background
Exploration/Analysis/Design
Construction
Q & A
Project Background
Exploration/Analysis/Design
Construction
Q & A
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Location MapLocation Map
PENNSYLVANIAPENNSYLVANIA
WESTWEST
VIRGINIAVIRGINIA
OHIOOHIO
JEFFERSONJEFFERSON
CO.CO.
PROJECTPROJECT
SITESITE
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Plan ViewPlan View
BB--11BB--22
BB--33 BB--44
BB--55BB--66
BB--77
BB--88
BB--99
BB--1010BB--1111
BB--1212 BB--1313BB--1414
BB--1515BB--1616
BB--1717BB--1818
BB--1919BB--22
(ODOT 99)(ODOT 99)BB--11
(ODOT 99)(ODOT 99)BB--33
(ODOT 99)(ODOT 99)
Tension CrackTension Crack
BB--11
(ODOT 02)(ODOT 02)
S.R.7S.R.7
AA
AA
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Sta. 205+00 to Sta. 213+00Sta. 205+00 to Sta. 213+00
Centerline ProfileCenterline Profile State Route 7State Route 7
206+00206+00205+00205+00 207+00207+00 208+00208+00
620620
630630
650650
640640
660660
680680
670670
690690
700700
209+00209+00 210+00210+00 211+00211+00 212+00212+00 213+00213+00
620620
630630
650650
640640
660660
680680
670670
690690
700700
WW
Shale, gray, silty, hard
Shale, gray, silty to sandy,moderately hard to hard,weathered
Siltstone, gray, hard, waterstained, broken zones
Shale, light gray to olive, siltyto sandy, moderately hard,
water stained, broken zones
Shale, gray, moderately hard tohard, weathered, water stained
Siltstone, gray, hard
Shale, soil like, soft to stiff,dry, highly weathered
Shale, gray, silty, moderatelyhard to hard, weathered, withfrequent clay seams
Siltstone, hard, waterstained, highlyfractured
Shale, gray, moderatelyhard, clay mottling andbroken zones
Boring 1Boring 133.133.1 Rt.Rt.
Boring 2Boring 234.734.7 Rt.Rt.
Boring 6Boring 63333 Rt.Rt.
Boring 8Boring 831.531.5 Rt.Rt.
WW
Shale andSiltstone Bedrock
FillMaterials
Colluvium /Alluvium
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Cross Section ACross Section A--AA
690
680
670
660
650
640
630
620
610
Station 208+40.41Station 208+40.41
B-5
ExistingGroundline
Shale andSiltstone Bedrock
Fill Materials
Colluvium / Alluvium
690
680
670
660
650
640
630
620
610
Approx. Phreatic
Surface
Approx. Top
of Rock
B-4
B-1 (ODOT 02)
RR Tracks
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Slope Inclinometer Data (B1)Slope Inclinometer Data (B1)
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Slope Inclinometer Data (B4)Slope Inclinometer Data (B4)
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Contributing Factors to Slope MovementContributing Factors to Slope Movement
Fill over colluvial/alluvial deposits with
soft zones Steeply sloping bedrock
Ohio River fluctuations
Possible increased shear stresses due toBrowns Island
Fill over colluvial/alluvial deposits with
soft zones Steeply sloping bedrock
Ohio River fluctuations
Possible increased shear stresses due toBrowns Island
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Alternative Stabilization SchemesAlternative Stabilization Schemes
Drilled Shafts ($3M) Drilled Shafts with Tiebacks ($3.4M)
Soldier Pile w/ Lagging and Tiebacks($3.5M)
Tiedback Grade Beams ($2M)
Drilled Shafts ($3M) Drilled Shafts with Tiebacks ($3.4M)
Soldier Pile w/ Lagging and Tiebacks($3.5M)
Tiedback Grade Beams ($2M)
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Typical SectionTypical Section
Approximate
Top of Rock
Rock Anchors
30
o
(Typ
.)
30o (Typ.)
36 (Typ.)
Bond Length
To Achieve 195k
Design Load (Typ.)
Rock Anchor InstallationRock Anchor Installation
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Cross Section ACross Section A--AA
Approx. Top
of Rock
690
680
670
660
650
640
630
620
610
Station 208+40.41Station 208+40.41
Tension Crack
Approx. Phreatic
Surface
Assumed Locationof Failure Surface
B-5 B-1
B-15
B-4
Shale andSiltstone Bedrock
Fill Materials
Colluvium / Alluvium
ExistingGroundline
RR Tracks
690
680
670
660
650
640
630
620
610
12
3 4 5 6
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Anchor InformationAnchor Information
Anchor Information
Section
Force to be
ResistedP(kips/ft)
HorizontalComponentPx (kips/ft)
Horizontal
AnchorComponentTx (kips)
Total
NumberofAnchors
Numberof Rows
EstimatedAnchorSpacing
206+50 207+30 72.4 69.9 168.9 33 3 7.0
207+30 208+40 75.2 71.5 168.9 48 3 6.75
208+40 209+97 69.7 63.7 168.9 60 3 7.75
209+97 212+00 46.9 43.3 168.9 54 3 11.5209+97 212+00
(ALT)46.9 43.3 168.9 52 2 7.75
Total 195 (193)
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Post Remediation Stability AnalysisPost Remediation Stability Analysis
i i S i i A i
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Post Remediation Stability AnalysisPost Remediation Stability Analysis
of Slope Below Anchorsof Slope Below Anchors
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
ConstructionConstruction
September 2008 May 2009 Contractor A. P. OHoro
Anchor Subcontractor SchnabelFoundations
Cost - $1.8M
September 2008 May 2009 Contractor A. P. OHoro
Anchor Subcontractor SchnabelFoundations
Cost - $1.8M
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Slide TitleSlide Title
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Slide TitleSlide Title
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Slide TitleSlide Title
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
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Ohio Department ofOhio Department of
TransportationTransportation
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Slide TitleSlide Title
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Ohio Department ofOhio Department of
Geohazards in Transportation in the Appalachian Region, August 4Geohazards in Transportation in the Appalachian Region, August 4--6, 20096, 2009
Questions?Questions?
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