04 lafosse ppt final
DESCRIPTION
LaFosse PPT FinalTRANSCRIPT
![Page 1: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/1.jpg)
1
Design-Built Permanent Soil Nail Retaining Wall and Building Foundations at the University of
Connecticut Health Center
Ulrich La Fosse, P.E. GeoDesign, Inc.
Middlebury, CTNew York, NYWindsor, VT September 13, 2013
![Page 2: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/2.jpg)
2
Site Locus
SITE
Bridging Documents –Foundations and Wall Types
ACC Building – Drilled Shafts
Garage – Spread Footings
Site Wall Behind Garage• Temporary SOE• Buttress Type – Concrete Gravity Wall• Heights up to 55 feet & 450 feet long
![Page 3: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/3.jpg)
3
Bridging Docs Retaining Wall - Plan
Section 15-Ft24-Ft500-Ft
GRAVITY WALL
c
Bridging Docs Retaining Wall - Section
GRAVITY WALL
![Page 4: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/4.jpg)
4
Bridging Docs Temporary SOE & Wall
CONCRETEGRAVITY
WALL
TEMPORARYSOE WALL
Alternate Design Goals
Accelerate Construction
Eliminate work
Achieve economies
Meet Owner Criteria
![Page 5: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/5.jpg)
5
Alternate Design Concept
Combine Temporary & Permanent Support of Excavation
Replace Drilled Shafts with shallow Foundations (ACC)
Maximize Foundation Pressures (Garage & ACC)
Retaining WallDesign Considerations
Sparse Subsurface Data Very Tight Schedule for Design Tall Wall (up to 55 feet High) Wall Surcharge (1.5H:1V slope and
Road) Bridge Abutment Loading Combine Temporary & Permanent
Support of Excavation
![Page 6: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/6.jpg)
6
Surficial Geology
SITE
Retaining WallConstruction Considerations
Sparse Subsurface Data Tall Wall (up to 55 feet) Wall Surcharge (1.5H:1V slope and
Road) Bridge Abutment Loading Combine Temporary & Permanent
Support of Excavation
![Page 7: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/7.jpg)
7
![Page 8: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/8.jpg)
8
EXISTING 2H:1V SLOPE
![Page 9: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/9.jpg)
9
Main Road and Traffic Surcharge
STEEP SLOPE ABOVE WALL
![Page 10: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/10.jpg)
10
Retaining WallPerformance Considerations
Must Limit Movement
Permanent Wall Considerations
Wall Finish – Varying Opinions
Alternate Design ConsiderationsACC Building
High Bearing Pressures Desirable Variable Soil Conditions
• Unsuitable Fill, over• Moderately dense Glacial Till, over• Dense to very Dense Till
Reworked Site – Possible unexpected variations and organics
![Page 11: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/11.jpg)
11
Permanent Soil Nail Wall Design
Partial Soil Wall Nail Plan
![Page 12: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/12.jpg)
12
Typical Soil Nail Wall - Section
Typical Soil Nail Wall - Section
![Page 13: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/13.jpg)
13
Typical Soil Nail Wall - Section
Typical Soil Nail Wall - Section
![Page 14: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/14.jpg)
14
Typical Soil Nail Wall - Section
Partial Soil Nail Wall – Elevation
![Page 15: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/15.jpg)
15
Soil Nail Wall – Detailed Section
CAPACITY OF TEMPORARYFACING IS NEGLECTED IN FINAL DESIGN
Start of Wall Construction
![Page 16: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/16.jpg)
16
![Page 17: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/17.jpg)
17
![Page 18: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/18.jpg)
18
DCP Soil Nailsand Temporary Shotcrete
Wall Facing
![Page 19: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/19.jpg)
19
![Page 20: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/20.jpg)
20
![Page 21: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/21.jpg)
21
IT IS IMPERATIVE TO BE ABLE TO CONTROL WATER and SOILS MUST BE ABLE TO STAND UNTIL SHOTCRETE HAS BEEN APPLIED
SLOUGHING SOILS
DRAINAGE, DRAINAGE, AND MORE DRAINAGE!
![Page 22: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/22.jpg)
22
A DCP SURPRISE!
A SIMPLE SOLUTION TO THE VEXINGPROBLEM OF LACK OF DCP AT TOP OF NAIL
![Page 23: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/23.jpg)
23
ANOTHER SURPRISEAN UNEXPECTED STUMP DUMP!
![Page 24: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/24.jpg)
24
Installation of Reinforcement for Final Shotcrete Wall Facing
![Page 25: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/25.jpg)
25
![Page 26: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/26.jpg)
26
![Page 27: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/27.jpg)
27
![Page 28: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/28.jpg)
28
Application of Final Shotcrete Wall Facing
![Page 29: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/29.jpg)
29
Night Work to MeetProject Schedule
![Page 30: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/30.jpg)
30
Completed Wall
![Page 31: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/31.jpg)
31
![Page 32: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/32.jpg)
32
![Page 33: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/33.jpg)
33
![Page 34: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/34.jpg)
34
![Page 35: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/35.jpg)
35
![Page 36: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/36.jpg)
36
Micropile-Supported Bridge AbutmentDirectly Behind
Permanent Soil Nail Wall
![Page 37: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/37.jpg)
37
![Page 38: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/38.jpg)
38
![Page 39: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/39.jpg)
39
Footing Preparationat ACC Building
![Page 40: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/40.jpg)
40
![Page 41: 04 LaFosse PPT Final](https://reader038.vdocuments.pub/reader038/viewer/2022102818/55cf8fa0550346703b9e1e17/html5/thumbnails/41.jpg)
41
Thank You!
Questions?