This test is to figure out the degree of defect and existence of pile about pile constructed at foundation part of upper structure. This is a method testing as hitting upper structure when it's impossible to hit the pile head and foundation part and seismic waves are transmitted to reception sensor(Hydrophone) in tube through pile. So it can help analyze the arrival time of signal of seismic waves and can test the pile state

Specifications

• Overall dimensions : 174×50×210mm

• Unit weight : 1.5kg

• System

- Signal Acquisition : 20kHz, 16bit, pre-trigger, Auto gain

- Power : 12V built in battery (operation time : 10 hours)

• Sensor

- Hammer : built in high sensitivity sensor

- Reception Probe : 10 through 100kHz reception band width and waterproof connector

Range of application and use

• Testing for pile existence, embedded depth and defects in completed structures

• Foundation analysis that can't be checked due to surrounding conditions like excavation

• Estimation of pile integrity

Features

• Estimation of the pile length by velocity of parallel seismic waves

• Inspection hole should be drilled about 5m deeper than expected embedded depth of piles and give impacts to the structure with hammer from the foundation bottom, which causes seismic waves and reception probe receives them

• Possibility to measure piles up to 10m from the side of structures (It depends on soil conditions)

• Possibility to measure piles up to 100m in length (In case the distance between the structure and pile is optimal)

• Data acquisition, storing and analysis on site

• Data storing, transmission and program update using SD card

• Light and portable size

• Estimation of pile condition by analysis program