GEOTECHNICAL INSTRUMENTATION FOR LANDSLIDE MONITORING M. Melih - - PowerPoint PPT Presentation

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Apr 11, 2023 41 likes •185 views

GEOTECHNICAL INSTRUMENTATION FOR LANDSLIDE MONITORING M. Melih Demirkan, Ph.D., P.E. RELIABLE INSTRUM RELIABLE INSTRUMEN ENTA TATI TION ON & & DATA DATA MONITORI MONITORING NG SOLUTIO SOLUTIONS NS GEOTECHNICAL | GEODETIC |

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RELIABLE RELIABLE INSTRUM INSTRUMEN ENTA TATI TION ON & & DATA DATA MONITORI MONITORING NG SOLUTIO SOLUTIONS NS GEOTECHNICAL | GEODETIC | STRUCTURAL | ENVIRONMENTAL

GEOTECHNICAL INSTRUMENTATION FOR LANDSLIDE MONITORING

M. Melih Demirkan, Ph.D., P.E.

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TYPICAL INSTRUMENTATION SCHEME – LANDSLIDE

Magnitude
Direction
Rate
Depth

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WHY?

WHY MONITORING?
OBSERVE ANY CHANGE
KNOW THE STATE OF THE SYSTEM
SAFETY AND PERFORMANCE
WHY VIBRATING WIRE?
DURABLE (MATERIAL, ASSEMBLY, CABLE, SEAL)
LONG TERM STABILITY –NO DRIFT
FREQUENCY OUTPUT
TRANSMIT OVER LONG DISTANCE
REAL TIME MONITORING

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Vibrating wire piezometers, standpipe piezometers and automatic water level monitoring systems were installed around deep excavations-stations and shafts, adjacent to TBM bored tunnels to monitor change in groundwater pressure and level due to construction activities

VW piezometer model EPP-30V (top left), EPP-40V (right) < Readout unit model EDI-51V < Automatic Water Level Monitoring System

GROUNDWATER LEVELS

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DISPLACEMENT, DEFORMATION

VIBRATING

WIRE DISPLACEMENT TRANSDUCERS

LINEAR

CRACK & JOINT METERS- ELECTRONIC & MECHANICAL

3D CRACK METERS - ELECTRONIC &

MECHANICAL

DISPLACEMENT SENSOR CRACK METER

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IN-PLACE INCLINOMETERS

Dasenbrock et. al. 2011

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Multi (three) Point Borehole extensometers were installed above bored tunnel alignments to monitor subsurface ground settlement at anchor depths using digital depth micro meter. Reference plate at the head

f the MPBX were also surveyed using precise levelling

methods

MPBX model EDS-63-U/D and Digital Depth Micro meter

MPBX EXTENSOMETER

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DIGITAL INCLINOMETER

THE IN-HOUSE DEVELOPED SOFTWARE THRU MOBILE PHONE

DATALOGGER

COMPACT SDI-INTERFACE DATALOGGER WITH INTEGRAL GSM/GPRS MODEM

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AUTOMATED MONITORING SYSTEM

AUTOMATED ROBOTIC TOTAL

STATIONS USING TERRAMOVE SOFTWARE, TERRAMOVE CONTROL BOX.

HIGH

MEASUREMENTS DENSITY , SIMULTANEOUS WIRELESS TRANSMISSION

CONTROLLED

REMOTELY FROM ANYWHERE.

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DATABASE MANAGEMENT SYSTEMS

Easy access to meaningful instrumentation data Enhanced graphical and numerical presentation Instant alerts via SMS or email to authorized personnel Fast access to different sensor data on one screen Create diagrams from any combination of parameters Multiple authorized users at different locations Simultaneous interactions of users Low operational cost User friendly on tablets and smartphones

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WEB BASED DATA MANAGEMENT

HTTP://122.15.209.75:50015/DEMOWDMS/WEBDATALOGIN HTTPS://TERRAWEB.IQSOFT.XYZ/

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Elevation (mDMD) Deformation (mm) VERTICAL INCLINOMETER-02

MOVEMENT FROM INCLINOMETER DATA

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COMBINED GRAPH-INCLINOMETER & PIEZOMETER

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melih@ritegeosystems.com

RITE GEOSYSTEMS INC. 1653 McFarland Rd., Pittsburgh PA 15216 +1 (412) 745 8300 www.ritegeosystems.com