Latest


How Pigging Works in Trenchless Repair and Rehabilitation


There are 5 basic PIG models, utility, inspection, intelligent, gel and specialty PIGS in use in trenchless pigging, all of which are used to clean and inspect pipes....

What to Do When You Smell Gas?


What to Do When You Smell Gas? Ventilate the area, evacuate the premises, contact emergency services and turn to trenchless inspection and repair for your gas lines. If...

The Geotechnical Investigation: Which Method Should We Use?


A geotechnical investigation is mostly done in an effort to identify the soils and ground conditions contractors will be working with. For this, soil sampling is a key...

large diameter borehole problems


Direct indicators of an unstable borehole include the excess volume of drill cuttings, caving or heaving at the surface, cement required in excess over designed quantity...

Easement and Contract: The Legalities of Trenchless Projects


The most challenging part in the planning phase is land easement acquisition. Thanks to trenchless technology, land owners are more comfortable handing over their land...

Using Trenchless Technology to Replace City Lead Pipes


Pipe pulling using trenchless technology was later adopted because the open trench method was causing a lot of disruption on the surface to road users and homeowners....

Using Trenchless Maintenance to Avoid Costly Leak Repairs


Trenchless technology methods are fast and efficient ways to address line damage. New technologies arise every day that make it easier to “see” the cracks without...

Why Replace Conventional Trenching with Trenchless Technology?


Trenchless rehabilitation is cheaper, less disruptive and requires less time to complete as opposed to conventional trenching projects, costing $50-$250 per foot. It...

Proper Maintenance for Drill Rig Equipment


Each of the components of a drill rig must be considered individually in order to maintain it. Rigs, rods, bits and back reamers, fluid pumps and collectors all need to...

Types of Temporary Shoring for Trenchless Projects


Different shoring options are available for trenchless construction projects including soldier pile and lagging, anchoring, soil nailing and more for the protection of...

Choosing Drill Rods for Trenchless Tunneling


For trenchless projects, managers select one of three main drill rod categories, A-series, D-series, or O-series. A-series rods are made of an air-hardened material that...

The Complex World of Sewer Networks


There are three main types of sewer systems: separate, combined and partially separate systems. Separate sewer systems use two lines, one for sanitary waste and the...

Trenchless Installation of Utility Lines and Access Ports in Urban Areas


The use of CIPP most commonly occurs to repair water, sewer, and gas lines. When installing utility lines in communities, an array of trenchless methods can be used from...

Working With Drilling Deviations


Drilling deviations come in many forms. The 1st order lineal deviation includes vertical deviation (msVD) and horizontal deviation (msHD). It is a measure of the...

Balancing Soil Pressure During Microtunneling


Soil pressure is a measure of the tendency of the soil at the face of the excavation to collapse. It differs depending on the type of soil and the level of groundwater...