Operation Guide of Ultrasonic Drilling Monitor

1. Introduction

The Ultrasonic Drilling Monitor is a specialized device used in foundation engineering and geotechnical drilling to assess the verticality, diameter, wall integrity, and sediment thickness of the drilling. It plays a vital role in ensuring the quality of bored piles, underground continuous walls, and other underground structures. Accurate operation ensures reliable decision-making data and compliance with engineering standards.

2. Pre-operation setup

2.1 Equipment list

Before starting operation, please confirm that all components are ready and functioning properly:

Ultrasonic probe with connecting cable

Display and control unit (handheld or integrated)

Power supply (battery or external power supply)

Calibration block or standard test hole (if applicable)

Lifting device or winch for deploying the probe

2.2 Site preparation

Clear floating objects or obstacles in the Drilling.

Protect the perimeter of the Drilling to ensure safe operation.

Check that there is no excessive vibration or electromagnetic interference in the surrounding area.

2.3 System calibration

Start the monitor and check for software updates.

Select the correct ultrasonic frequency according to the Drilling diameter.

Adjust gain, signal threshold, and scan speed for optimal clarity.

Perform a short test scan using a calibration Drilling to verify system accuracy.

2.4 Safety precautions

Use personal protective equipment (PPE) such as gloves, boots, and helmets.

Ensure all cables and electronic components are dry and insulated.

Avoid placing hands near the winch or probe during operation.

Do not allow unauthorized personnel to enter the monitoring area.

3. Operational procedures

3.1 System startup

Connect all cables and start the control unit.

Enter project details (Drilling ID, date, location) into the system.

Confirm operating mode and scan depth range.

3.2 Sensor deployment

Use the control winch or manually to slowly lower the ultrasonic probe into the Drilling.

Ensure the probe remains vertical and does not touch the Drilling wall.

Stop the scan at predetermined depth intervals (e.g., every 10-20 cm) to collect data.

3.3 Data acquisition

Start ultrasonic scanning and monitor real-time waveforms.

Record data for each depth increment according to project specifications.

If signal is weak or noisy, adjust gain or sensitivity.

Flag any anomalies during scanning for further analysis.

3.4 Real-time Troubleshooting

If signal is lost, check component connections and fuses.

If probe is stuck, carefully retract probe while monitoring resistance.

Refer to system manual for error codes (e.g., signal reflection loss, overload protection).

4. Post-job Data Analysis

4.1 Data Download and Backup

Export raw scan data via USB or memory card.

Create folders by Drilling ID and project date.

Back up files to external drive or cloud storage.

4.2 Ultrasonic Data Interpretation

Use analysis software to examine waveform data.

Identify changes in wall thickness, hole diameter, and vertical orientation.

Detect typical problems such as:

Wall collapse or voids

Sediment accumulation on bottom

Vertical axis deviation

4.3 Generate Reports

Generate Drilling profiles and depth maps.

Summarize key findings, including:

Maximum and minimum diameters

Vertical deviation

Depth of defect (if any)

Provide engineering recommendations based on detected issues.

4.4 Archive and Documentation

Save analysis reports in PDF and editable formats.

Tag and archive reports for delivery to customers or submission to regulatory agencies.

Maintain a backup library for long-term traceability.

5. Maintenance and Troubleshooting

5.1 Daily Maintenance Tips

Rinse probe with clean water after each use.

Inspect cables for wear.

Recharge batteries regularly.

5.2 Common Hardware Failures and Fixes

No signal: Check fuses, cables, and sensor condition.

No power: Verify battery charge and check power switch.

Inaccurate readings: Recalibrate or update firmware.

Contact manufacturer support for complex errors or equipment repairs.

Daily maintenance and accurate data interpretation are equally important for long-term performance and reliability.

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