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Core Drilling Rig User Manual: Safe and Efficient Operation Step-by-Step Guide

If you work in geotechnical engineering exploration, mining, or construction, mastering the operation of a core drilling rig is crucial for obtaining accurate samples and ensuring project success. This step-by-step guide covers the entire process from pre-operation checks to post-operation maintenance, helping both novice and experienced operators optimize equipment performance while adhering to safety standards.

1. Pre-Operation Preparation (Safety-Critical Aspects)
First, conduct a comprehensive inspection of the core drilling rig. Check for loose bolts, damaged hoses, and sufficient fuel and oil levels—equipment malfunctions can lead to safety accidents or inaccurate sampling results. Confirm that the drill bit is sharp and undamaged, compatible with the target formation (e.g., diamond drill bits are required for hard rock formations), and securely mounted on the rig.

Second, prepare the work area. Clear debris from the site, mark the locations of underground pipelines to avoid accidental damage, and ensure the drilling rig is placed on a level and stable surface. Use stabilizers or ground anchors to secure the equipment and prevent tipping during operation. Never neglect personal protective equipment (PPE): a safety helmet, impact-resistant safety glasses, cut-resistant gloves, and steel-toed safety shoes are essential protective gear for operators.

Core Drilling Rig User Manual: Safe and Efficient Operation Step-by-Step Guide 1

2.Step-by-Step Operation Procedure

● Strictly follow the manufacturer's manual to start the drilling rig—preheat the engine for 5-10 minutes to ensure smooth operation. Adjust the drilling angle and depth parameters according to project requirements, and use a level to confirm precise vertical or horizontal positioning.
● Start drilling at a low speed, drilling a pilot hole to reduce the risk of drill bit slippage and ensure accurate positioning. As the drill bit penetrates the formation, gradually increase the rotation speed, maintaining uniform pressure to prevent overheating. Continuously monitor the drill rig load and temperature—if abnormal vibration, noise, or resistance occurs, immediately stop the machine and investigate the fault.
● Carefully collect core samples using the drill rig's dedicated extraction system, labeling each sample with detailed information: borehole depth, precise coordinates, and timestamp. These records are crucial for ensuring the accuracy of geological analysis and project documentation.

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3.Key Safety and Maintenance Points

● Never operate a core drilling rig without professional training and certification. Avoid standing directly above the drill bit during operation, and keep unauthorized personnel away from the work area. If the drill bit gets stuck, completely disconnect the power supply before attempting to resolve the issue—never operate the rig directly with your hands or tools while it is running.
● After use, thoroughly clean the surface of the drilling rig of dirt, debris, and residual drill cuttings. Inspect all parts for wear and damage, replace worn parts promptly, and store the rig in a dry, well-ventilated, and sheltered location to prevent environmental corrosion. Regular maintenance not only extends the equipment's lifespan but also ensures stable performance in subsequent projects.

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