Casing Pipe Method

Published: July 30, 2017 | Last updated: July 5, 2023

What Does Casing Pipe Method Mean?

The casing pipe method is the technique of installing a casing, typically composed of steel, using a pneumatic or hydraulic hammer. After installation, the product pipe is installed inside the casing. The casing pipe method is ideal for bores at a shallow depth, up to 150 feet in length, and 55 inches in diameter. Though this method may be cost effective, it is limited by environmental factors and a lack of steerability.

Trenchlesspedia Explains Casing Pipe Method

The casing may be lubricated to aid in installation, and the spoil may be removed periodically, on longer installations, to reduce drag. For lubrication, drilling fluid is pumped to the outside, or both the inside and outside, of the pipe. Spoil removal can be accomplished by auger drilling, compressed air or by using a fabricated pipe shovel, and can be more difficult than the installation itself. .

This method is most often employed under railway and road embankments.

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