Cross-Hole Analyzer for ACIP and CFA piles

The Cross-Hole Analyzer may evaluate the quality of the concrete of deep foundations by the Single Hole Sonic Logging (SSL) method, in addition to performing Cross Hole Sonic Logging (CSL).

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The Cross-Hole Analyzer may evaluate the quality of the concrete of deep foundations by the Single Hole Sonic Logging (SSL) method, in addition to performing Cross Hole Sonic Logging (CSL). The CHAMP-XV consists of a main unit with 60 GB internal solid state drive (SSD) and Windows 7 OS, transmitter, receiver, two independent depth measuring devices, a tripod for assembling the test, and the powerful software CHA-W.

a receiver and a transmitter in sturdy brass housingReceiver and Transmitter in Sturdy Brass Housing

Augered cast-in-place (ACIP) and Continuous Flight Auger (CFA) piles, as well as small drilled shafts, are prepared for the SSL test by installation of one single PVC tube in their center. During the test a transmitter and a receiver are lowered down the tube. A high frequency signal is sent from transmitter to receiver, scanning the entire length of the shaft. The transmitters and receivers are available with cables of various lengths.

The attractive enclosure of the CHAMP-XV is still light and small, but its color touch-screen display is 5 cm larger than the previous model and visible in all lighting conditions. The replaceable internal battery designed to last an entire day of normal testing, frees the tester from a power source, allowing easy movement between piles. Essential analysis is performed in the field in real time.

Field data transferred to a computer through USB ports, and is further analyzed by the CHA-W software, which outputs graphs such as First Arrival Time, Wave Speed, Waterfall Diagram and Energy Plot, and aids in test report preparation.

The CHAMP-XV meets or exceeds the specifications for cross-hole sonic logging required by D6760 Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing.

CHAMP-XV Specifications

September 2015
PDF Format

Main Unit

Physical:

  • Size: 320 X 250 X 68 mm (12.6 X 9.8 X 2.7 inches)
  • Weight: 5 kg (11 lbs.)
  • Display: 26.4 cm (10.4 inch) sunlight readable touch screen display, resolution 1024 X 768
  • Operating temperature range: 0˚ – 40˚ C
  • Power: 4 hour continuous data collection with internal 12V battery, or 100 – 240 VAC power supply
  • Charging Time: 6 Hours max.

Electronic:

  • Computer with 60 GB SSD internal drive and 4 external USB ports
    12 bit analog to digital (A/D) converter
  • Sampling rate: 500 kHz, 1 MHz and 2 MHz, user selectable (equivalent measuring accuracy 2μs, 1μs and 0.5μs)
  • Scan rate: 32 scans/seconds
  • Record size: 250, 500 and 1000 points, user selectable
  • User adjustable gain, trigger level and transmit power level

Other:

  • Windows® 7 OS
  • Operates in English or SI Units
  • Furnished with CHA-W software
  • Full one year warranty
  • Technical manual included

Probes

Physical:

  • Size: 215 mm length x 25 mm diameter
  • Element: ceramic
  • Housing: nickel plated brass
  • Independent depth encoder for each probe
  • Maximum measuring distance (probe separation): 3m

Electronic:

  • Receiver: tuned to 45 KHz nominal
  • Transmitter frequency (nominal): 45 KHz
  • Transmitter voltage: 200, 400, 600 or 800 Volts (user selectable)

Cables:

  • Cable material: heavy duty polyurethane outer jacket
  • Cable length: 60, 100 or 150 m
  • Cables spooled over tripod (standard) or with optional Motorized Probe Deployment System (60 m only)

Motorized Probe Deployment System

Main Unit:

  • Size: Two 380mm X 480mm X 405mm spools
  • Weight: 11.3Kg each
  • Includes 60 m cable, detachable from spool
  • Includes depth encoder for each probe, attached to frame

Motor Control Unit

  • Size: 240mm X 160mm X 90mm
  • Weight: 1.6 Kg
  • Powered by either external battery (8 hours duration), 12VDC car battery, or 100 – 240 VAC with 12VDC converter
  • Fast charger to recharge the external battery in 4 hours
  • Variable probe pull rate: 0.150 to 0.915 m/sec (low, medium, high speed selection)
  • Resettable circuit breaker motor protection
  • Operating temperature range: 0° to 40°C
  • Storage temperature range: -10° to 65°C

Other:

  • Includes pulley for placement at the tube
  • Includes roller guide for routing cable through re-enforcement rebar cage or over casing