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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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tio
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mD
MD
)
Deformation (mm)
VERTICAL INCLINOMETER-02
MOVEMENT FROM INCLINOMETER DATA
COMBINED GRAPH-INCLINOMETER & PIEZOMETER
RITE GEOSYSTEMS INC.
1653 McFarland Rd., Pittsburgh PA 15216
+1 (412) 745 8300
www.ritegeosystems.com
thank you
