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44
Geotechnical News • December 2012
www.geotechnicalnews.com
THE GROUT LINE
• Displacement sensors connected
with the main unit and attached to
the micropile/anchor with a mag-
netic plate. See picture #3. Usually
two sensors are available. One for
the micropile/anchor head and the
other for the micropile reference on
the ground or the wall for the an-
chor.
• Pressure sensor to be installed in
the circuit of the hydraulic oil and
connected with the main unit. See
picture #4.
• Memory card reader.
• Software.
The apparatus allows measurement,
visualization in real time, as well as
printing and
recording of all
the parameters
used in a tension/
compression test
such as:
• Load (tension
or compres-
sion),
• M i c r o p i l e /
anchor dis-
placement,
• Ground/ wall
displacement,
• Stressing time.
Picture 3. Displacement sensor.
Picture 2. Main recording unit.
Picture 4. Pressure sensor
Picture 5. Seismic anchor installed.
Picture 6. Testing.