It is mainly used to check the bore diameter quality of filling pile for the projects of high building, bridge, airport, high-way, seaport and wharf. Package may be used to detect the bore diameter, depth, vertical extend of bore, appearance of the borehole wall, and the dreg thickness on the bottom of bore.

   It has been widely used in architecture, communication, rail way and water conservancy in the past ten years.

Main technical index:

  1. Bore diameter measuring range: Ф500mm～Ф1200mm

  2. Bore diameter measuring  error: ±15mm

  3. Current supply for caliper gauge:

      Regular: 0.6～5.0mA

      Precision: ±20μA

  4. Length of cable: 100m

  5. Display for depth: 0.00～±99.99m, It can be preset, clear zero.

  6. Basic error of recorder: ±1％

  7. Virtual recording breadth: 250mm

      Note: The maximum of measuring range is 3m,detectors can be designed according to  technical requirement.

  Corollary equipment:

  Detector for vertical extent: inclinometer such as model JJX-3,JJX-3B,JJM-1.

  Detector for dreg thickness: model JNC-1 dreg tester.

    It is mainly used to check the bore diameter quality of filling pile for the projects of high building, bridge, airport, high-way, seaport and wharf. Package may be used to detect the bore diameter, depth, vertical extend of bore, appearance of the borehole wall, and the dreg thickness on the bottom of bore. Main controller is made up of PIC SCM. It can display determination data and curves on time, and store and output for printing. It is convenient to make determination report. The system realizes digitization of quality determination for bore diameter detecting system for filling pile, it is the exchange product of the "JJC-1A",which has widely used. May improve the efficiency and quality of determination project.

Main technical index:

  1. Bore diameter measuring range:

          Ф500mm～Ф1200mm(JJY-2),fixing leg(200mm):Ф1600mm

          Ф600mm～Ф1800mm(JJY-5),fixing leg(770mm):Ф2800mm

  2. Bore diameter measuring  error: ±15mm（JJY-2）

                                                                      ±25mm（JJY-5）

  3. Current supply for caliper gauge:

          Regular: 10mA

  4. Length of cable: 100m

  5. Display for depth: 0～100m

  6.  Winch: electric motor

  7. Standard style of on-line report forms and determination report is supplied to be chosen.

  8. Detector for vertical extent: inclinometer such as model JJX-3A,JJX-3B,JJM-1.

  9. Detector for dreg thickness: model JNC-1 dreg tester.

    This system is designed basing on JJC-1A. It consists of two-pen automatic well logging equipment, four-leg caliper, logging winch and other necessary equipments. The advantages of this system are portable and practical. It has been widely used in high buildings, bridges, highway harbor and etc.

 Technical Specifications:

  1. Measuring range of borehole:

      (1) Ф600～1700mm(including length of leg)

      (2) Ф800～2100mm(including length of leg)

  2. Measuring error of borehole: borehole＜1000  ±15mm

                                  borehole＞1000   ±25mm

  3. Power supply for caliper: 0.6～5mA

  4. Caliper's sensitivity: ≥10mA/10cm

  5. Length of cable: 50m

  6. Resistance force: 0.35T

  7. Depth show: 0～±99.99m, may preset and reset

  8. Basic error of recorder: ±1%

  9. Non-sensitivity width of recorder: ±0.5mm

  10.Effective recording width: 250mm

  11.  8 Depth ratios of recorder:

     1/10,1/20,1/50,1/100,1/200,1/500,1/1000,1/2000

  12.  8 Measuring ranges of recorder

  13. Working temperature: Detecting pipe: ≤ 50℃  Ground Instruments: -10℃～45℃    Relative humidity: 85%

  14. Pressure for caliper: ≥  3MPa

  15. Working power: 220V 50Hz 50W

    It is mainly used to check the bore diameter quality of filling pile for the projects of high building, bridge, airport, high-way, seaport and wharf. Package may be used to detect the bore diameter, depth, vertical extend of bore, appearance of the borehole wall, and the dreg thickness on the bottom of bore. Main controller is made up of notebook PC and portable printer. It can display determinating data and curves on time, and store and output for printing. It is convenient to make determinating report. The system realizes digitization of quality determination for bore diameter detecting system for filling pile, it is the exchange product of the "JJC-1A",which has widely used. May improve the efficiency and quality of determination project.

     It has been widely used in architecture, communication, rail way and water conservancy in the past ten years.

Main technical index:

1. Bore diameter measuring range:

         Ф500mm～Ф1200mm(JJY-2),fixing leg(200mm):Ф1600mm

         Ф600mm～Ф1800mm(JJY-5),fixing leg(770mm):Ф2800mm

2. Bore diameter measuring  error: ±15mm（JJY-2）

                                                                    ±25mm（JJY-5）

3. Current supply for caliper gauge:

          Regular: 10mA

4. Length of cable: 100m

5. Display for depth: 0～100m

6.  Winch: electric motor/p>

7. Standard style of on-line report forms and determinating report is supplied to be chosen.

8. Capacity of notebook PC is great, be satisfied with all kinds of information storage on rule.

9. Detector for vertical extent: inclinometer such as model JJX-3A,JJX-3B,JJM-1.

    By adopting the sensor structure that is suitable for running under water and the determination method that fixes the sensor under water, this instrument makes the constructor can control the concrete height location accurately when the pile is filling. It can decrease great waste for concrete source, reduce the difficulty for excavating, save cast for foundation engineering project constructing, and lessen circumstance pollution for burying redundant concrete block.

    The instrument is high automatization, high speed response, credible determination result and alarm on time, and it is the prior optional one for the company and research institute of working on high building, bridge, dock and harbor, oil extraction flat roof on the sea, nuclear power plant and other large foundation engineering projects.

Main technical index:                              

  1. height location range:   30 m

  2. height location error:   0.3 m

  3. probe shape under well:  Φ50 mm × 980 mm

  4. probe weight under well: 7.5 kg

  5. working surroundings:  controller: -10 ～ 50 ℃，≤ 90% RH

                                                    probe: 0  ～ 40 ℃

  6. power supply:  AC220 V ±10%/50 Hz, or UPS 500 W

  7. determination method:  fixing location real sampling

  8. alarm method:  sound and light alarming (the volume is adjustable)

    Dreg thickness is one of the important index of the hole forming quality. This equipment cooperates with JJC-1A Detecting System for Bored Concrete Pile. It takes the special-designed microelectrodes system and newly-designed circuit, so it detects the dreg thickness precisely.

Technical Specifications:

  Electrode constant: 1.06m

  Insulation: ＞50M

  Arrange of the electrode system: B0.02 N0.02 M0.02

    The Pile Integrity Tester performs low strain integrity testing, alternatively called Sonic Testing, Pulse Echo, or Transient Response. It may be used to test concrete piles, drilled shafts, augured piles (CFA), concrete filled pipe piles, and on occasion timber piles. The test can be easily and rapidly performed, making it economically  feasible to test every pile on site. The PIT can detect the presence and  location of potentially dangerous defects such as cracks, necking, soil inclusions or voids and can determine pile length.

Main technical index:

 Physical:

      Size: 100×60×25 mm

      Weight: 0.2 kg

      High-contrast touch screen display

      Wireless range: Up to 10m or 300m

      Temperature range: Operating Range: 0 to 40℃; Storage Range: -20 to 65℃

      Includes carry-on transit case

      Powered by internal battery (16 hours duration)

 Electronic:

      PDA

      SMD card data storage     

      16-bit A/D converter with 1 or 2 channels

      Analog signal frequency response 22 KHz (-3dB).

      Sample digitizing frequency of > 1MHz

      Sampling frequency accuracy within 0.01%

      Trigger level: 0.3 volts

 Functional:

    Permits input of information names and descriptions for each pile tested        Date and time stamps Signal conditioning. When a force measurement is also acquired, the signal conditioning for force and velocity has similar frequency response curves      Automatic data storage One or two channels of acceleration data acquisition, and one integrator of acceleration to velocity  Signal amplification capability Capability of measuring and reproducing signals of duration between 2 and 40 ms Signals for each data set can be held indefinitely and can be recalled  from memory card at a later time      Data can be averaged over a variable number of blows Variable signal amplification over time

 Other:

      Full one-year warranty

      Operates in English, SI or Metric units

      Technical manual included