Download - COMITÉ PANAMEÑO DE PRESAS
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COMITÉ PANAMEÑO DE PRESAS
FORO: SEGURIDAD DE PRESAS
17 DE NOVIEMBRE DE 2012
Hans Schwarzweller
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Center Hill Dam Foundation Remediation BAUER Spezialtiefbau – Bauer Foundation Corp.
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Center Hill Dam Foundation Remediation Project Location
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Wolf Creek Dam Foundation Remediation Project Location
Wolf Creek Dam
Center Hill Dam
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Center Hill Dam Foundation Remediation Project Overview
- Concrete Dam approx. 420m long- Main Dam is 69m high above stream bed- Embankment Dam is approx. 300 m long- Diff. U/S to D/S Water Level approx. 50m
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Center Hill Dam Foundation Remediation The basic problem
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Center Hill Dam Foundation Remediation The basic problem
1959 2007
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Center Hill Dam Foundation Remediation The basic problem
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Center Hill Dam Foundation Remediation Sink holes
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Center Hill Dam Foundation Remediation Sink holes
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Center Hill Dam Foundation Remediation Sink holes
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Center Hill Dam Foundation Remediation Sink holes / Existing Condition
Sink hole
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Center Hill Dam Foundation Remediation Cut off trench works
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Center Hill Dam Foundation Remediation Solution
Barrier Wall
Encasement Wall
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Center Hill Dam Foundation Remediation Geology
1000Psi ~ 7Mpa
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USA - Center Hill Dam Foundation Remediation Geology
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USA - Center Hill Dam Foundation Remediation Geology
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Formation Rock Type Approximate Thickness Character
Unconfined Compressive
Strength
Catheys Limestone 56 - 116 ftfinely crystalline shaley Limestone bands medium to thin bedded hard to moderately hard
108 MPa
Cannon Limestone 110 - 120 ftfinely crystalline shaley Limestone bands massive bedded hard to moderately hard
36 – 220 MPa
Hermitage 4 beds of Shale and Limestone 50 - 55 ft
dense to finely crystalline thin bedded soft to moderately hard
35 – 200 MPa
Upper Carters Limestone 25 - 27 ftdense to finely crystalline shale stringers/bands medium to thin bedded hard to very hard
55 – 195 MPa
T3 Bentonitesandy volcanic weak
shaleShale 1-1/4 to 2 ft
dense to fine grained sandy at top, shale at bottom thin bedded soft
Lower Carters Limestone 55 - 85 ftfine to medium crystalline shaley LS bands/stringers massive to thick bedded hard to very hard
120 – 180 MPa
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Center Hill Dam Foundation Remediation Geology
UCS 72 MPa
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100f
t ~ 3
0m
Center Hill Dam Foundation Remediation Encasement & Barrier wall layout
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Center Hill Dam Foundation Remediation Site Works Overview
E- & B- Wall
Extended Working Platform
Staging Area
Water Access
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Center Hill Dam Foundation Remediation Previous Works
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Center Hill Dam Foundation Remediation Todays Scope of Work
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Center Hill Dam Foundation Remediation Todays Scope of Work
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Center Hill Dam Foundation Remediation Todays Scope of Work
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Center Hill Dam Foundation Remediation Todays Scope of Work
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Center Hill Dam Foundation Remediation Todays Scope of Work
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Center Hill Dam Foundation Remediation Todays Scope of Work
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Center Hill Dam Foundation Remediation Todays Scope of Work
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Center Hill Dam Foundation Remediation Scheduled Small Drilling Equipment
Precision tool for Pilot Hole Drilling Verticality Control by Laser at a Coal Mine in Belgium Drilling depth: 626 ft – Laser beam confirms a total deviation of 1 inch = 0.01%
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Center Hill Dam Foundation Remediation Scheduled Large Drilling Equipment
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Center Hill Dam Foundation Remediation Scheduled Large Drilling Equipment
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Center Hill Dam Foundation Remediation Scheduled Large Drilling Equipment
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Center Hill Dam Foundation Remediation Scheduled Cutter Equipment
320to
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Center Hill Dam Foundation Remediation Scheduled Cutter Equipment
2,25m
3,2 m
70to
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Center Hill Dam Foundation Remediation Scheduled Slurry Equipment
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Center Hill Dam Foundation Remediation Scheduled Submittals & Reporting
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Center Hill Dam Foundation Remediation Scheduled Survey & Monitoring
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Center Hill Dam Foundation Remediation Scheduled Survey & Monitoring
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Center Hill Dam Foundation Remediation Scheduled Survey & Monitoring by CIS
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Center Hill Dam Foundation Remediation Scheduled Survey & Monitoring by CIS
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WallTrackerDokumentation und Visualisierung von Projektdaten
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WallTrackerDokumentation und Visualisierung von Projektdaten
Zweck und Ziele
1. Zeitnahe Qualitätskontrolle / -überwachung (z.B. erreichte Tiefen,
Überschnitte, Testergebnisse, …)
2. Zeitnahe Datenanalyse (Tiefe-Soll-Ist, Überschnitt-soll-Ist, …)
3. Zeitnahes Produktions-Controlling (Massen, Soll-Ist-Vergleiche)
4. Visualisierung der erbrachten Leistung
5. Übersichtliche Dokumentation von geographisch zugeordneten Daten
(geocoded data)
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WallTrackerVisualisierung und Dokumentation von Projektdaten
Software-Hintergrund1.Visualisierung von verschiedenen Daten aus verschiedenen Datenbanken über die ArcGIS-Software von Esri (ArcGIS: GeoInformationssystem)
2.ArcGIS-Reader ist kostenlos und wird bei Bedarf von IT installiert
Info aus Wikipedia:GeoinformationssystemGeoinformationssysteme (GIS), Geographische Informationssysteme oder Räumliche Informationssysteme (RIS) sind Informationssysteme zur Erfassung, Bearbeitung, Organisation, Analyse und Präsentation geografischer Daten. Geoinformationssysteme umfassen die dazu benötigte Hardware, Software, Daten und Anwendungen.
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ArcGis Explorer Online
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WallTrackerDokumentation und Visualisierung von Projektdaten
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WallTrackerDokumentation und Visualisierung von Projektdaten
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WallTrackerVisualisierung und Dokumentation von Projektdaten
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WallTrackerVisualisierung und Dokumentation von Projektdaten
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WallTrackerVisualisierung und Dokumentation von Projektdaten
WallTracker ©
for
Center Hill Dam Seepage Rehabilitation
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CHD – Data Flow: Principles and Concepts
Single comprehensive data structure– Described in Data Management Plan to be submitted to Government– Master database serves as single authoritative repository of all project data– Relational database structure
Balance between automation and QC– Data flow is automated to eliminate transcription, but transparent to allow
QC at all steps
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CHD – Data Flow: Principles and Concepts
Data integrity built into each stage of process:– Raw data uploaded to Government FTP site immediately on generation– All data are verified on appending to database:
• Checks for completeness• Checks for compliance with valid values
– Normalization within database allows for efficient management:• All locations related by coordinates and stations• Consistent unit nomenclature across entire database
Government and QCS can remotely view operator screens and access all data with WallTracker
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CHD – Data Flow: Instrumentation and Survey
Inputs
Argus ADAS
Government’s or QCS’s Tablet PC:• Mirror of Argus data view• WallTracker view
Argus data view
Master Site Database
WallTracker
FTP(raw data;
submittals)
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CHD – Data Flow: Wall Installation
Bauer equipment with B-Tronics
Operator’s Control Screen
Wireless router
B-Tronics.dat file
Master Site Database
FTP(raw data;
submittals)
WallTrackerGovernment’s or QCS’s Tablet PC:• Mirror of Operator’s Control
Screen (within 1,000m)
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