Standard Test
Method for Low Strain Impact Integrity Testing of Deep
Foundations ASTM D******7
Technical Code
for Detection ofBuildingFoundationPileJGJ*******4
Dynamic Testing
Technology Regulations on Highway
EngineeringFoundationPileJTG/TF*********4
Nondestructive
Detection Code for Railway
Engineering FoundationPileTB*****-***8
Technical Code
for Detection ofBuildingFoundation JGJ
*******5
Principle The test is based
on wave propagation theory. The name "low strain pile
integrity test" stems from the
fact that when a light impact is applied to a pile it produces a
low strain. The impact
generates a stress wave that travels down the pile. When the
downward stress wave
encounters a change in cross section or in concrete quality, it
generates reflected wave
that is later observed at the pile top. By analyzing the
propagation time, amplitude and
phase of that reflected wave, it has evaluation of pile integrity
ultimately. Technical Features 1. Removable lithium
battery Service life is
≥*0h, desktop charger is supported and spare
battery can be provided to ensure that the field work will not be
interrupted. 2. Instantaneous floating point amplification
technology Compatible with
the distortionless acquisition of strong and weak
signals. 3. Shallow defect
location correction The
three-dimensional correction function for shallow defect is owned
and the defect can be located
accurately. 4. Field
analysis Filtering, index
amplification, defect locating and other analysis functions can be
conducted in the field. 5. Sensorcompatibility Piezoelectric
sensor and speed
sensorarecompatible. Software Feature 1.Average
superposition analysis of
multi-channelcollected signal is
supported; 2.Amplification,
translation, rotation, filtering,index amplification
and other processing can
be carried out for wave
signals; 3.Multiple
report
output stylescan
be selected and the
report output style can
also be customized; 4.Automatic
generation function of engineering
detection informationis
owned; 5. Analysis
operation can beprocessed
inbatch to
save the analysis operation workload of the same type of
pile; 6.Bilingual
operationboth
inChinese and
English is
supported and the
output format meetsa
variety ofinternationalcodes; 7.Vectordiagramoutput, print
output, Word file output and otheroutputmodesare
supported; 8.The frequency
domain analysis function is
owned to calculate the whole
pile frequency and defect frequency
conveniently and
quickly.
