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Cased Boring VS. Uncased Boring


Uncased boring is similar to the cased method. However, instead of having a casing pushed into the hold made by the auger, there is nothing to support the hole and keep...

Everything You Need to Know About Grouting in Trenchless Projects


Grouting is one of the original trenchless rehabilitation methods and has been in use for over 50 years. Through this method, sewers are repaired and sealed without...

Steel or Concrete for Temporary Trenchless Shoring?


Steel temporary trenchless shoring solutions like sheet piling are quick and cheap to install. However, if hard rock is encountered in the ground, drilling may be...

What is Horizontal Directional Drilling?


Horizontal Directional Drilling or HDD is a process of trenchlessly boring a horizontal hole for the installation of new pipes using drill rigs, rods, reamers and a...

The Right Drill Bit for Soft, Medium & Hard Ground Conditions


Depending on the soil structure, a geological investigation provides information on which drill bits should be used for drilling in soft, medium and hard ground...

Sliplining or Pipe Bursting for Pipe Repair?


Sliplining is ideal for straight pipes with slight to no bends, no protrusions or severe deformations. Pipe bursting does not allow for change of slope, requires bypass...

A Look at Hydro Vacuum Excavation


A water jet that’s steered is an effective way of producing a tunnel that follows a project design path almost perfectly. Add suction to remove the slurry the water jet...

Cost-Saving Trenchless Dewatering in Construction Projects


This water needs to be drained effectively to stabilize the soil so that construction work can proceed. If dewatering is not managed well, it can cause seepages, inflows...

Trenchless Operations Safety Do’s and Don’ts


Though trenchless construction eliminates excavation, the site selected for beginning the project should be where minimum disruption to pedestrian and vehicular traffic...

When Ground Improvement is Needed During Trenchless Rehabilitation


Ground improvement is basically done to stabilize soil and prevent it from settling or collapsing, especially when a utility pipeline or structure is passing through the...

Jet-Grouting for Complex Shoring


We've provided an explanation of the technology of jet-grouting and how it can be applied to complex shoring and define complex shoring once and for all.

The Process of Pipe Ramming


When it comes to placing pipes under railroads, embankments, roads and landscapes, pipe ramming is the preferred trenchless method because it is cost efficient, time...

The Lifespan of Steel, Clay, Plastic & Composite Pipes


The commonly used pipe materials are high-density polyethylene (HDPE), Polyvinyl Chloride (PVC), reinforced concrete, steel, and vitrified clay. Each has different...

How Horizontal Auger Boring Works


Horizontal auger boring uses a combination of jacking to push pipe casings into the soil and an auger to remove the spoil from the inside of the casings as they progress...

The View Underground: Ground Penetrating Radar


Ground penetrating radar or (GPR) can save you thousands on a trenchless project, however, it cannot be relied upon by itself. Using it to confirm unknown problems...