Horizontal and vertical boring machines are defined by the orientation of their spindles.

 

Although they are frequently used interchangeably, the terms horizontal and vertical boring are different because they convey different scales.

 

Generally, the term horizontal directional drilling (HDD) is meant to describe larger/maxi-sized drill rigs, larger bores, and traverse distances of thousands of feet.

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Horizontal directional drilling (HDD) are great trenchless options for utility lines and larger-diameter pipelines. To determine when to deploy an HDD or auger-boring machine, it is essential to understand the advantages and disadvantages of each trenchless technique.

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​Directional boring, also called horizontal directional drilling (HDD) Horizontal directional drilling (HDD) is a trenchless, minimum-impact way to install underground utilities, such as pipes, conduits, or cables, along a predetermined path in the ground using surface-mounted drill rigs.

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An experienced directional boring crew, like the contractors at Boring Americans, can steer and guide directional drilling rigs' drill bits up, down, right, left, and combinations of each in various degrees to bore a desired horizontal boring path.

 

 

Before the drill begins, the crew will plan out the boring route in advance so that it will avoid obstacles carefully, such as other subsurface utilities.

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The boring path is usually expanded one-and-a-half times larger than the diameter of the pipe being installed. In this type of installation, the bore path needs to be extended in order to fit the conduit, and a reamer is attached to cut the larger diameter hole.

 

Traditionally, this term applies to most junctions where the fluid-filled pilot hole is bored using fluid driven machinery on the ends of bent pipe, with reaming backed up to the required diameter of the products pipeline.

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Guided drilling can also be applied to an auger-bore system, where the casing is moved by means of rods fired from the driving hole to the aft portion, with some crude casing-advanced joint, or by some other means or system of guidance for an advanced casing.

 

Auger borings are also still used as work can be done at grade level for sewer works. Drilling machines have booms which press against the ground so they are not pulled back when they are pushing a pipe forward.

 

All Southern Underground conducts horizontal directional boring for utilities below existing roads, pavement, streams, buildings, and other obstructions.