DAM  MONITORING

 

 

 

 

 

 

 

 

 

 

MONITORING OF DAM

 

 

 

 

INSTRUMENTATION APPLICATION FOR LANDSLIDE MONITORING

EARTH FILL DAMS
Dam body
Parameters to be monitored Type of instruments
Pore water pressure and core permeability Piezometers
Total stress within core
Total stress at contact between embankment and structure		 Earth pressure cells
Strain within embankment Embankment (fill) extensometers
Horizontal deformation Inclinometer tubes
In-place inclinometers
Vertical deformation and settlements Settlement column
Horizontal in-place inclinometers
Settlements Survey reference point
Differential settlements between zones with different compressibility Settlement gauges
Thermal monitoring (air, water) Thermometers
Seapage flow Weir and flow meters
Deformation in the inspection galleries Joint-meters
Tiltmeters
Reservoir water level Level meters
Vibration (seismic event) Acelerographs
CONCRETE DAMS
Foundation and abutments
Parameters to be monitored Type of instruments
Pore pressure (soil)
Joint water pressure (rock)
Up-lift pressure		 Piezometers
Pressure transducers
Vertical deformations Borehole extensometers
Horizontal deformation Inclinometers Inverted pendulums
Foundation and abutments
Parameters to be monitored Type of instruments
Pore pressure (soil)
Joint water pressure (rock)
Up-lift pressure		 Piezometers
Pressure transducers
Vertical deformations Borehole extensometers
Horizontal deformation Inclinometers Inverted pendulums

AND MORE.......

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SOME INSTRUMENTS FOR DAM MONITORING

   

DIRECT PENDULAM

  

VIBRATING WIRE STRAIN GAUGES

  

PORTABLE TILTMETER

   

CRACKMETER

  

PNEUMATIC PIEZOMETER

  

WATER LEVEL INDICATOR

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