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201 Presentation Rev 4

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by

Roger Skirrow

on 13 February 2014

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Transcript of 201 Presentation Rev 4

Engineering & Policy Division
Technical
Standards
Branch

Geotechnical & Materials Section
Standards (minimum)
GRMP
Misty
(Admin)
Roger
(Director)
Rocky
(S.G.E.)
Muzaffar
(E.R.E.)
Rishi
(G.E.)
Field
Investigation
Office
Review
Laboratory
Test
Program
Report
Roadway
Borrow
Bridge & Major Culverts
Soft Ground/Muskeg
Landslide
Erosion
Rock
Backfilling of Test Holes & Restoration of Test Pits
Instrumentation Installation & Monitoring
Laboratory Testing
Geosynthetic & Erosion Control Materials
Borehole Data Reporting
Presentation of Soils & Rock Information on Mosaics
Reporting Requirements

Regulatory Requirements
Erosion & Sediment Control Management Strategy
Erosion & Sediment Process
Site Assessment
Site Erosion Potential & Evaluation
Erosion & Sediment Control Methods
Selection of BMP for Erosion & Sediment Control
The Permanent Erosion & Sediment Control Plan (PESC Plan)
The Temporary Erosion & Sediment Control Plan (TESC Plan)
Guidelines for Estimating Runoff from Small Watersheds & Design of Open Channels
Guidelines for the Design of Sediment Containmen
What do we do?
Expert Advice
Knowledge Transfer
Standards
Engineering
Review
Engineering Consultant Guidelines
What are our expectations?
Consultant
Selection

Comprehension
Innovation
Team
Budget
Clarity
Organization
Past Perf.
Project Control

What was done?
What was observed?
What are the limitations of the study
What are the recommendations?
- supported by fact
- defensible
- relevant
- clearly and logically presented


Engineering
Theory
Testing
Experience
GEOTECHNICAL INPUT TO HIGHWAY PROJECTS
Theory
Experience
Testing
Planning

Identification of geotechnical issues:
Muskeg
Landslides
Groundwater Cuts/Fills
Stability of fills
Construction
Long term


50%
of construction claims are geotechnical
related
Preliminary Engineering

Field investigation
Laboratory testing
Develop design concepts
Basic modeling
Preliminary report / Factual report
Identify soil types
Characterize soil parameters
Preliminary design work to confirm concept feasibility

Differing soil condition claims
Project Specifics

Fill Section

Stability - fill material, foundation, rate of fill placement
Settlement - rate and amount
Construction - winter vs summer
Effect on other structures, buried utilities
Project Specifics

Bridge Foundation

Bearing capacity - soil friction angle and cohesion, failure mode
Pile settlement
Construction - driveability
Load tests/PDA
Project Specifics

Cut Section

Stability - in-situ material strength
Groundwater seepage - icing
Erosion
Construction - rocks/boulders

Project Specifics

Muskeg

Thickness - remove or pad over
Continuity of wetland drainage
Centreline culverts
Construction - surcharge, saddle berms, lift thickness, winter versus summer
Detailed Design

Advanced lab testing
Add'l field work, large scale test
Advanced modeling
Optimize design
Refine project costs
Construction aspects
Final Report


Foundations
Expansive Soils
Dispersive Soils
Mineralogy
Occurrence
Distribution
Consequences
Mitigation
Frost Heave
Causes
Consequences
Mitigation
Compaction
Static/Dynamic
Moisture Content
Structure
Winter / Summer
Additives
Shale fill
Differing
Site Conditions
Baseline Reports
Disclaimers
Geo Investigation
Earth Retaining
Systems
MSE
GSE
Gravity
Bin
Soil Nail
Ground
Anchors
Bar/Strand
Grouted/Screw
Tensioning
Testing
Relaxation
Rock
RQD/% Recovery
Rockfall
Debris Flow
Barriers/Nets
Bolts/Blast
Scaling
Excavatability
Instrumentation
Slope Indicators
Piezometers
Load Cells
Settlement Plates
Thermistors
Stone Columns
Soil Nail Launcher
Micropiles
Slope Stability
Cuts / Fills
Headslopes
Natural Slopes
GW / Seepage
Models / Parameters
Mitigation

Base
Stabilization
Drainage
Gradation
Lime / Cement
Additives
Remote Sensing
LiDAR / InSAR
GPR
Seismic
Limitations
Risk in
Geotechnical
Engineering
Identification
Assessment
Allocation
Mitigation
Monitoring
GEOTECHNICAL ENGINEERING IN HIGHWAY PROJECTS

Roger Skirrow, M.Sc., P.Eng.

Workshops
Field Practicums
Tech Talks
Conferences
Website
TOR / RFP
Report Reviews
Construction
Region
Other GOA
BMP
Guidelines
Standards
Report Contents

Executive Summary
Office Review
Field Investigation
Laboratory Results
Engineering Assessment
Recommendation
Appendix -
Borehole Logs
Stratigraphic sections
Lab results
Regulatory
Complex
Experience
Multidisciplinary
CPESC

Deep/Shallow
Piles/Footings

Steel
Concrete
Timber

Lateral
Vertical
Group Effects
Settlement
Heave
Downdrag
QA / QC Program
Equations
WEAP
PDA
Load Tests

LRFD / LSD
Driven
CIP
Straight/belled
Franki
Precast
CFI
Casing
Tremmie
GRMP
Common Report Deficiencies
Can't read minds
Assumption are dangerous
Better investigation = better decisions
Evaluation criteria:
Related demonstrated experience
Education and Training
Entrance Exam
$200US/Year
Identify Issues that will determine the footprint of the corridor
Tender

Materials
Quantities
Special provisions
Drawings
Cost estimate


General
Do not meet terms of scope
Overuse of disclaimers
Unfamiliarity with AT
Technical
Impractical / overly conservative / costly designs
Only one option provided
Insufficient field investigation / lab testing / explanation to support analyzes
Presentation
Grammar
Format
Missing sections
Verbose
Optimize design
Finalize design
Engineering analysis completed to support selection of final design

Construction Monitoring

Lab testing - Proctor / M.C.
Pile inspection
QA testing - PDA
CCR
As-Builts
Document what was done
Document exception
/Minimize opportunity for claims
Full transcript