RELIABLE INSTRUMENTATION & DATA MONITORING SOLUTIONS

GEOTECHNICAL | GEODETIC | STRUCTURAL |

ENVIRONMENTAL

GEOTECHNICAL INSTRUMENTATION

FOR LANDSLIDE MONITORING

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

TYPICAL INSTRUMENTATION SCHEME – LANDSLIDE

• Magnitude • Direction • Rate • Depth

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

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

DISPLACEMENT, DEFORMATION

VIBRATING WIRE DISPLACEMENT

TRANSDUCERS

LINEAR CRACK & JOINT METERS-

ELECTRONIC & MECHANICAL

3D CRACK METERS - ELECTRONIC &

MECHANICAL

DISPLACEMENT SENSOR CRACK METER

IN-PLACE INCLINOMETERS

Dasenbrock et. al. 2011

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 of the MPBX were also surveyed using precise levelling methods

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

MPBX EXTENSOMETER

DIGITAL INCLINOMETER

THE IN-HOUSE DEVELOPED SOFTWARE THRU MOBILE

PHONE

DATALOGGER

COMPACT SDI-INTERFACE

DATALOGGER WITH INTEGRAL

GSM/GPRS MODEM

AUTOMATED MONITORING SYSTEM

• AUTOMATED ROBOTIC TOTAL

STATIONS USING TERRAMOVE

SOFTWARE, TERRAMOVE CONTROL

BOX.

• HIGH MEASUREMENTS DENSITY,

SIMULTANEOUS WIRELESS

TRANSMISSION

• CONTROLLED REMOTELY FROM

ANYWHERE.

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

WEB BASED DATA MANAGEMENT

HTTP://122.15.209.75:50015/DEMOWDMS/WEBDATALOGIN

HTTPS://TERRAWEB.IQSOFT.XYZ/

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Ele

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Deformation (mm)

VERTICAL INCLINOMETER-02

MOVEMENT FROM INCLINOMETER DATA

COMBINED GRAPH-INCLINOMETER & PIEZOMETER

melih@ritegeosystems.com

RITE GEOSYSTEMS INC.

1653 McFarland Rd., Pittsburgh PA 15216

+1 (412) 745 8300

www.ritegeosystems.com

thank you