H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

Monitoring of cutting tools in TBM‘S

Thomas Edelmann | Herrenknecht AG

Tunnelbauforschung in Leoben, Schwanau und Bochum

Workshop am 30.09.2013, Ruhr Universität Bochum)

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CONTENT

A. Introduction

B. Cutting tools

C. Monitoring

D. Monitoring systems

E. Inspection systems

F. Cutting tool change

G. Summary

05.07.2013Page 2 T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum

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A. INTRODUCTION

30.09.2013 T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und BochumPage 3

Softground TBM: EPB TBM / MIX SHIELD TBM

Monitoring of Softground and Hard rock tools / cutter heads is different

Softground:

• Wear

• Rotation

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A. INTRODUCTION

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HARD ROCK TBM:

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum30.09.2013

Hard rock:

• Damages indicated by indirect sensors

• Cutter load to limit risk

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A. INTRODUCTION

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Cutting tools:

Overview of tolls at different cutting wheels:

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum30.09.2013

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C. Monitoring

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What does monitoring mean?

Weardetection

Cutter discsconditions

Online loadmeasuring

Online wearmeasuring

Visualinspection

SG toolswith weardetection

Hard rock Load measuring ofdisc cutters Softground

Remotecontrolledrobot in SG

Cutter headwear

detection.Softground Direct Indirect Cleaning of

cutter head

IndirectDisc cutter

weardetection

Inspection ofCutterhead/tools

Looking forwear limits

Indicationof tool

conditions

Looking for loadlimits, Geotechnical

indicationsAvoid compressedair interventions

Informationsand reactions

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum30.09.2013

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D. MONITORING SYSTEMS

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Soft ground tool monitoring

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum30.09.2013

Indication for high wear ordamaged tools / cutter head

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D. MONITORING SYSTEMS

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Disc Cutter Rotation Monitoring (DCRM):

System structure:

Hard rock TBMs Hydroshield TBM withaccessible cutting wheel

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum30.09.2013

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Disc Cutter Rotation Monitoring (DCRM):

Signal transmission on hard rock machines:

Power supply throughrotary coupling.

Signal transmission tothe operator cabin.

Emission of radiosignals.

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum30.09.2013

D. MONITORING SYSTEMS

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F. CHANGE

F. Köppl (Herrenknecht AG) | International workshop on cutting tool – soil interaction (Ruhr Universität Bochum ,SFB 837)Page 10

Accessible cutter heads:

Individual tools are equipped with pressure locks for atmospheric change

30.09.2013

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Disc Cutter Load Monitoring (DCLM):

System structure:

Sensor plates(piezo-resistive)

Thrustforce

Cuttingforce

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum30.09.2013

D. MONITORING SYSTEMS

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Disc Cutter Wear Monitoring (DCWM):

System structure for Hydroshield TBM with accessible cutterheads:

Ultrasonicsensors

Test rig withbentonite

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D. MONITORING SYSTEMS

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum

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Disc Cutter Wear Monitoring (DCWM):

Test system measurement results:

020406080

100120140160180200

0 100 200 300 400 500 600Sens

orab

stan

d v.

Sch

neid

ring

[mm

]

Messung Nr.

159,5159,7159,9160,1160,3160,5

550 560 570 580 590

30.09.2013

D. MONITORING SYSTEMS

T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum

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E. INSPECTION

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Assisted tool inspection:

System structure:

Extendible inspection robot in tube garage

Assembly of the garage between pressure wall and submerged wall

Opening towards the excavation chamber

30.09.2013 T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum

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E. INSPECTION

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Assisted tool inspection:

Application on Hydroshield TBM:

Pressurewall

Submergedwall

Water jet,light &camera

Endoscope

30.09.2013 T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum

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F. CHANGE

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Assisted & automated cutting tool change:

Support structure & manipulator:

30.09.2013 T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum

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G. SUMMARY

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Hardrock TBM Hydroshield TBMEPB TBM

Direct /Indirectmonitoring

Existing systems Existing systems

Cutterconditions DCRM – Hard rock DCRM – FSP, DCRM – SG under development

Online loadmeasuring DCLM – Prototyp available (see S. Barwart)

Online wearmeasuring manually DCWM – Prototyp in validation

Visualinspection manually Prototype under development

Tool change:Assitance system under progress. Status: initial studies.Automated system under progress. Status: initial studies.

30.09.2013 T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum

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Page 18

Thank you for yourattention!

30.09.2013 T. Edelmann (Herrenknecht AG) | Tunnelbauforschung in Leoben, Schwanau und Bochum