COMITÉ PANAMEÑO DE PRESAS

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Jutta Hartmann
vor 8 Jahren
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1 COMITÉ PANAMEÑO DE PRESAS FORO: SEGURIDAD DE PRESAS 17 DE NOVIEMBRE DE 2012 Hans Schwarzweller

2 BAUER Spezialtiefbau Bauer Foundation Corp.

3 Project Location 3

4 Wolf Creek Dam Foundation Remediation Project Location Wolf Creek Dam Center Hill Dam 4

5 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 5

6 The basic problem 6

7 The basic problem

8 The basic problem 8

9 Center Hill Dam Foundation Remediation Sink holes 9

10 Center Hill Dam Foundation Remediation Sink holes 10

11 Sink holes 11

12 Sink holes / Existing Condition Sink hole 12

13 Center Hill Dam Foundation Remediation Cut off trench works 13

14 Solution Encasement Wall Barrier Wall 14

15 Geology 1000Psi ~ 7Mpa 15

16 USA - Center Hill Dam Foundation Remediation Geology 16

17 USA - Center Hill Dam Foundation Remediation Geology Formation Rock Type Approximate Thickness Character Unconfined Compressive Strength Catheys Limestone ft Cannon Limestone ft finely crystalline shaley Limestone bands medium to thin bedded hard to moderately hard finely crystalline shaley Limestone bands massive bedded hard to moderately hard 108 MPa MPa Hermitage 4 beds of Shale and Limestone ft dense to finely crystalline thin bedded soft to moderately hard MPa Upper Carters Limestone ft T3 Bentonite sandy volcanic weak shale Shale 1-1/4 to 2 ft Lower Carters Limestone ft dense to finely crystalline shale stringers/bands medium to thin bedded hard to very hard dense to fine grained sandy at top, shale at bottom thin bedded soft fine to medium crystalline shaley LS bands/stringers massive to thick bedded hard to very hard MPa MPa 17

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 ft T3 Bentonite sandy volcanic weak shale Shale 1-1/4 to 2 ft

18 Geology UCS 72 MPa 18

19 Encasement & Barrier wall layout 100ft ~ 30m

20 Site Works Overview E- & B- Wall Staging Area Water Access Extended Working Platform 20

21 Previous Works 21

22 Todays Scope of Work 22

23 Todays Scope of Work 23

24 Todays Scope of Work 24

25 Todays Scope of Work 25

26 Todays Scope of Work 26

27 Todays Scope of Work 27

28 Todays Scope of Work

29 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%

30 Scheduled Large Drilling Equipment

31 Scheduled Large Drilling Equipment

32 Scheduled Large Drilling Equipment

33 Scheduled Cutter Equipment 320to 33

34 Scheduled Cutter Equipment 3,2 m 2,25m 70to 34

35 Scheduled Slurry Equipment 35

36 Scheduled Submittals & Reporting 36

37 Scheduled Survey & Monitoring 37

38 Scheduled Survey & Monitoring 38

39 Scheduled Survey & Monitoring by CIS 39

40 Scheduled Survey & Monitoring by CIS 40

41 WallTracker Dokumentation und Visualisierung von Projektdaten 41

42 WallTracker Dokumentation 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) 42

43 WallTracker Visualisierung und Dokumentation von Projektdaten Software-Hintergrund 1.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: Geoinformationssystem Geoinformationssysteme (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. ArcGis Explorer Online 43

44 WallTracker Dokumentation und Visualisierung von Projektdaten 44

45 WallTracker Dokumentation und Visualisierung von Projektdaten 45

46 WallTracker Visualisierung und Dokumentation von Projektdaten 46

47 WallTracker Visualisierung und Dokumentation von Projektdaten 47

48 WallTracker Visualisierung und Dokumentation von Projektdaten WallTracker for Center Hill Dam Seepage Rehabilitation 48

49 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

50 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

51 Survey Inputs CHD Data Flow: Instrumentation and FTP (raw data; submittals) Argus ADAS Argus data view Master Site Database Government s or QCS s Tablet PC: Mirror of Argus data view WallTracker view WallTracker

52 CHD Data Flow: Wall Installation Wireless router FTP (raw data; submittals) B-Tronics.dat file Operator s Control Screen Bauer equipment with B-Tronics Master Site Database Government s or QCS s Tablet PC: Mirror of Operator s Control Screen (within 1,000m) WallTracker

53 53

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