Advanced Borehole Survey Equipment for Deep Pile Caliper

• Customization: Available
• Accuracy: 1%F.S
• Horizontal Line: Pile Diameter Test
• Model NO.: GDC-1EG bored pile caliper and inclination tester
• Vertical Lines: Pile Diameter Test
• Application: Bored Pile Caliper
• Use: Pile Diameter Tester
• Diameter: Max 1.8m
• Conguration: Logger Box,Logging Winch, Caliper
• Diameter Range: 600mm-2000mm
• Waterphoof: IP68
• Maximum Depth: 100 M
• Hoisting Speed: 600 ~ 1000m/H
• Transport Package: Wooden Case
• Trademark: gold
• Origin: China
• Production Capacity: 100 Sets/Month

Product Description

4 Arm Geotechnical  Bored Pile Caliper And Inclination Tester

 

                                                                                                                 
System composition
 

GDZ-4s control case

caliper/inclinometer measuring probe

sediment/inclinometer measuring probe

automatic cabling winch

Caliper calibrator

 

Product Parameters

1. Hole measuring range:  Ф500mm~Ф1600mm
2. Hole measuring bias:   ≤±5mm
3. Verticality measurement   
  Measuring range:  0°~10°
  Resolution:  0.01°
  Measuring bias:   ≤±0.1°
4. Sediment thickness measurement
  Diameter of probe underground:   Ф40mm
  Interval between electrodes:  20mm±0.5mm
  Specific resistance measuring bias:  ≤5%


5. Winch
   Length of cable:  100m (as customer's need)
   Pulling strength of cable:  ≥0.35t(tear-out strength 0.65t)
   Cabling speed: 10m/min
   Depth indication bias:    ≤1‰
   Weight of winch:  50kg
   Motor power:    550W
   Dimension(L×W×H):    600mm×450mm×350mm,600mm height by hand
   Control mode:   Two direction switch
   Cabling mode:   It has automatic cabling function and hand cranking function.


6. Working temperature
   Measuring probe:   0ºC~50ºC
   Units on the ground:   -10ºC~45ºC
7. Relative humidity:    <85%
8. Power supply:    AC(220V±10%),50Hz


Well logging examples

1.Well diameter example:
The well is 37 meters deep, with a designed aperture of 1200m and an average measured value of 1200mm. There is a small expansion at 22m-23m and a larger expansion at 26m-27m, with the maximum reaching 1478mm.

2.Inclinometer Example:
The depth of this measurement is 35.27 meters, and a point is measured every 5 meters (a point can be measured every 4/3/2/1 meters, depending on the actual situation and needs). The composite angle is the top angle of the probe tube. From the reading, it does not exceed 0.05 degrees. The smaller the composite angle, the more vertical the hole is. The eccentricity is accumulated step by step, and each data is accumulated on the basis of the previous data. The verticality is within 0.05%. The smaller the verticality, the more vertical the hole is (generally required to be within 1%). After the measurement, the composite angle, eccentricity and verticality of the last set of data are taken as the standard.

3.Sediment thickness:
The depth of this measurement is 35.27 meters, and a point is measured every 5 meters (a point can be measured every 4/3/2/1 meters, depending on the actual situation and needs). The composite angle is the top angle of the probe tube. From the reading, it does not exceed 0.05 degrees. The smaller the composite angle, the more vertical the hole is. The eccentricity is accumulated step by step, and each data is accumulated on the basis of the previous data. The verticality is within 0.05%. The smaller the verticality, the more vertical the hole is (generally required to be within 1%). After the measurement, the composite angle, eccentricity and verticality of the last set of data are taken as the standard.