High Pressure Lubrication Systems - Akkerman

Equipment

Akkerman Inc.

Tunnel lubrication plays a pivotal role in the success of all trenchless methods while improving the performance of tunneling, pipe jacking, microtunneling, guided boring, and horizontal directional drilling systems. The right lubrication system not only reduces frictional forces along the pipe string, but today’s advanced systems also incorporate variable flows, pressures, and additional pumping strategies that enhance material flow and maximize the mechanical properties of the trenchless equipment design.

A common misconception in the trenchless industry is that the lubricant, often referred to as bentonite slurry, coats the jacking pipe and makes it slippery. While a well‐designed mixture will seem to have these results, lubrication mixtures are formulated based on the site’s geology, trenchless equipment design, and lubrication system capacity to maintain the open annulus created between the cutter head and the jacking pipe. In certain ground conditions, the use of an improper mixture or misapplication can lead to increased jacking loads or even failure.


High Pressure Lubrication Systems

Below is a general guideline, given as a starting point for your next project. We always recommend consulting with a mud engineer for an on‐site evaluation of your geology.

Ground TypeGround ConditionsReactivityLubrication Mix
Coarse SoilsSands, Gravel, RockNon-Reactive. Does not swell. Does not get sticky.Water (pH-controlled), Bentonite. Addition of PAC or Xantham Gum may be required
Fine SoilsClay & ShaleReactive. Tendency to swell with water. Can get sticky.Water (pH-controlled), Bentonite with clay inhibitor. Surfactant to reduce stickiness
Mixed SoilsVariableGround may react differently depending on the ratio of coarse/fine materialMixture of Bentonite, Flocculant, or clay Inhibitor

Akkerman produces a complete family of lubrication/mud pumps suited for the trenchless industry’s rigorous demands. High‐pressure lubrication pumps are the perfect complement to extend distances during pilot tube installations. These same systems are versatile and mobile for any trenchless project, like pipe jacking, microtunneling, auger boring, directional drilling, and vertical drilling applications, to name a few.

Print This Page

Testimonials

The Akkerman team are great people to work with. Our industry has relied on them for over 20 years to help review projects, specifications and geotechnical reports. They are the number 1 innovator, provider, “and educator” of guided trenchless method solutions for the installation of new pipelines.

See What Our Clients Say

Tunneling