Cross Hole equipment

The equipment is aimed to investigate the foundation piles of buildings, which, with the use of cross- hole ultrasonic pulses, allows accurate, high-resolution tests to be carried out.

An ultrasonic wave is sent from a transmitter to a receiver and is conveyed automatically by the device along the entire length of the pile via the pipes embedded into it during casting.

The speed of the sonic wave and its energy are strongly influenced by the quality of the concrete and it is therefore possible to assess the characteristics and give a tomographic representation in 2D and 3D.

The test can be carried out for any kind of foundation or concrete structure that has two or more access pipes that can hold water.

The CSL can also be applied to submerged piles and structures that do not have internal pipes but can be fi tted with external pipes.

The computer tomographic imaging tests are carried out when the defects detected are critical and require an in-depth study.

The Crosshole system compounds:

-Portable computerized unit
-Acquisition card high-speed data
-Crosshole software for data acquisition and analysis
-Tripod for hanging the lifting mechanism
-2 interchangeable probes (transmitter and receiver)
-An ultrasound pulse generator to excite the transmitter
-Amplifying systems and cabling for the CSL test
-Two cable coils for 80 metres of usable cable

These components are inter-connected by cables to form a complete system.