3)
Breaking a Trench
Breaking a trench for pipelines in bedrock is another excellent application for the Power
Rock splitter. This is especially true where fly rock, and blasting would be a problem.
Again in this application, it is advisable to drill the holes to their full depth and split in 31”
increments..
Trench Rock Digging
Fig 4-5
Where there is top access and a free face to break to, it is more productive to drill from the
top down and split the material to the open face. A wide variety of trench profiles can be
easily achieved with clean smooth sides and flat bottoms, minimizing the need for added
leveling materials in the trench bottom.
Trench Drilling Pattern
Free face
