Bored pile drilling rig tutorial #shorts @DRTV

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Издатель Mar 10, 2023

Bored pile drilling rigs are used for the construction of deep foundation piles, which provide support for large structures such as buildings, bridges, and dams. In this tutorial, we will go through the basic components of a bored pile drilling rig and the drilling process.

Components of a Bored Pile Drilling Rig:

Mast: The mast is the vertical component of the drilling rig that supports the drill string and drilling tools.

Drill string: The drill string is a series of connected drill pipes that transfer torque and rotation from the drill rig to the drilling tool at the bottom of the borehole.

Kelly bar: The Kelly bar is a telescopic steel tube that is attached to the mast and extends the drill string to the bottom of the borehole.

Borehole tool: The borehole tool is the drill bit that is attached to the end of the drill string and is used to cut and remove soil or rock.

Power system: The power system includes the engine and hydraulic pumps that power the drilling rig and provide the necessary torque and rotation to the drill string.

Winch: The winch is used to lift and lower the drill string and borehole tool.

Mud tank: The mud tank is used to store drilling mud, which is a mixture of water, clay, and other additives that help to lubricate and cool the drill bit and carry away the cuttings.

Drilling Process:

Set up the drilling rig: The drilling rig is set up on the construction site, and the mast is assembled and attached to the power system.

Position the drill rig: The drill rig is positioned over the location where the borehole is to be drilled.

Lower the borehole tool: The borehole tool is lowered into the borehole using the winch and Kelly bar.

Begin drilling: The power system is activated, and the drill string is rotated, causing the borehole tool to cut and remove soil or rock.

Add drilling mud: As the borehole tool cuts through the soil or rock, drilling mud is pumped through the drill string and out through the borehole tool to help lubricate and cool the drill bit and carry away the cuttings.

Retrieve borehole tool: Once the desired depth of the borehole is reached, the borehole tool is retrieved using the winch and Kelly bar.

Repeat drilling: If necessary, additional boreholes are drilled in the same manner until all the foundation piles are completed.

In summary, a bored pile drilling rig is a complex machine that requires specialized training to operate safely and efficiently. Understanding the basic components of a drilling rig and the drilling process is essential for anyone working in the construction industry.