Rockwheel D20 trenching in West Virginia sandstone and blue rock…a microcosm on the paradigm shift in rock excavation

Apr 13, 2017
With winter finally coming to a close the construction season in the Mid-Atlantic region is picking up steam.  With this seasonal uptick we at Alpine Rockwheel are getting more and more calls as excavation contractors and engineers recognize the benefit…

New mine scaling drum outperforms the competition!

Dec 19, 2016
In a head-to-head trial the Alpine Rockwheel model D30M (mining version) hydraulic rock cutting attachment was found to cut smoother, stronger and more continuously when compared to a competitive unit the customer was testing.  This was an ideal comparison because the…

G45 Rockwheel takes 14,000 psi rock to task in New York wastewater treatment plant construction

Oct 31, 2016
Two 200-hp G45 Rockwheels installed on CAT349 excavators have helped the contactor complete a challenging rock excavation project in New York state.  Geo technical data indicated rock to be in the 14,000 psi range.  Because they were excavating next to…

Alpine D10 Rockwheel Cutting Potash

Oct 06, 2016
The Alpine D10 Rockwheel is the tool of choice for cutting potash.  Here you see the tool working in the Canadian potash mines for scaling, floor leveling, and trimming the back (roof) of the tunnel network.  This 40-hp (30-kW) cutter…

High precision rock removal with D30 Rockwheel

Aug 09, 2016
The Rockwheel D30 is getting some great press from down under.  Extremely precise rock grinding with minimum disturbance to the adjacent material.  The same applies to tunneling work and concrete removal on sensitve structures. Alpine stocks the full line of…

Precision rock removal with Alpine Rockwheel

May 31, 2016
An interesting project is underway in the State of Indiana in the USA.  The contractor is using an Alpine D30 Rockwheel installed on a CAT336 excavator to precisely remove 4-ft of hard limestone shelf rock in order to place 96-ft…

Alpine D20 RockWheel for Rock Trenching: When is a RockWheel the best call?

Jun 12, 2015
With regard to trenching in rock, a frequent question I get from customers and equipment dealers is “When do I use a RockWheel vs. a hammer or ripper bucket?”  The answer is somewhat simple, the RockWheel is the best option…

Alpine Rockwheels Used in Secant Shaft Construction

Jan 16, 2015
For larger diameter shafts through unstable soils, the use of interlocking hard / soft CFA (continuous flight auger) piles is a highly cost effective method of shaft sinking.  Alpine’s RockWheel rock & concrete grinders are often an important tool in these…

Soil mixing equipment addresses in situ soil remediation challenges

Dec 01, 2014
Every individual worksite comes with its own set of complications.…

How to Boost Rock Trenching Precision and Efficiency with a Transverse Cutter Head

Dec 01, 2014
Trenching and rock excavation projects are always tall tasks. The inherent uncertainty and variability of rock strength (measured in psi or MPa) and quality (degree and spacing of fractures) makes bidding these projects a challenge and predicting production rates even more…

Trimming Caisson Walls with Alpine Rockwheel Concrete Grinding Attachments

Jul 11, 2014
Caisson walls are composed of vertically drilled, intersecting reinforced concrete piles constructed for ground support during excavation and construction activities, especially in urban areas where work is being done close to existing structures.  The resulting vertical face is a series of…

PSU+Alpine Soil Mixing Research Collaboration continues

May 22, 2014
Alpine’s partnership with researchers at the Pennsylvania State University continues into 2014 as we continue to improve our soil mixer designs.  Using numerical modeling and particle tracing we’re simulating the complex interaction between fluid-solid mixtures and mixing tools in order…