Trenchless Construction


Eric Wood invented trenchless technology. Who invented trenchless technology? Eric Wood invented trenchless technology. Who invented trenchless technology? Eric Wood invented trenchless technology. Who invented trenchless technology? Eric Wood invented trenchless technology. Who invented trenchless technology?


Trenchless technology, the method of subsurface construction requiring little or no continuous trenching, began in 1970. It was invented by...

Avoid tunnel collapse Avoid tunnel collapse Avoid tunnel collapse Avoid tunnel collapse


Analyzing the ground conditions is only a small part of successfully boring a tunnel. Using engineering skills as well as preparing the...

trenchless is best for historic towns Philadelphia trenchless is best for historic towns Philadelphia trenchless is best for historic towns Philadelphia trenchless is best for historic towns Philadelphia


America's aging underground infrastructure isn't limited to major cities. and trenchless technology can help them. Historic towns, however,...

large diameter borehole problems large diameter borehole problems large diameter borehole problems 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...

Why Replace Conventional Trenching with Trenchless Technology? Why Replace Conventional Trenching with Trenchless Technology? Why Replace Conventional Trenching with Trenchless Technology? 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,...

Types of Temporary Shoring for Trenchless Projects Types of Temporary Shoring for Trenchless Projects Types of Temporary Shoring for Trenchless Projects Types of Temporary Shoring for Trenchless Projects


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

Choosing Drill Rods for Trenchless Tunneling Choosing Drill Rods for Trenchless Tunneling Choosing Drill Rods for Trenchless Tunneling 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...

The Complex World of Sewer Networks The Complex World of Sewer Networks The Complex World of Sewer Networks 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...

jet grouting for channeling jet grouting for channeling jet grouting for channeling jet grouting for channeling


The simplest form of jet grouting consists of two nozzles diametrically opposite from each other just above the drilling tool. High...

Trenchless Installation of Utility Lines and Access Ports in Urban Areas Trenchless Installation of Utility Lines and Access Ports in Urban Areas Trenchless Installation of Utility Lines and Access Ports in Urban Areas 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...

Working With Drilling Deviations Working With Drilling Deviations Working With Drilling Deviations Working With Drilling Deviations


Drilling deviations come in many forms. The 1st order lineal deviation includes vertical deviation (msVD) and horizontal deviation (msHD)....

Balancing Soil Pressure During Microtunneling Balancing Soil Pressure During Microtunneling Balancing Soil Pressure During Microtunneling 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...

Using Trenchless Construction for Planned Communities Using Trenchless Construction for Planned Communities Using Trenchless Construction for Planned Communities Using Trenchless Construction for Planned Communities


Using trenchless construction for planned communities allows contractors to plan the infrastructure like sewer, water, gas and telecom...

Ground Improvement Requirements When Working With Sandy Soil Ground Improvement Requirements When Working With Sandy Soil Ground Improvement Requirements When Working With Sandy Soil Ground Improvement Requirements When Working With Sandy Soil


Things to consider are how to deal with flooding issues, regulations concerning excavation and backfill of the site, and potential soil...

The History of Vitrified Clay Pipe in Trenchless Installation The History of Vitrified Clay Pipe in Trenchless Installation The History of Vitrified Clay Pipe in Trenchless Installation The History of Vitrified Clay Pipe in Trenchless Installation


Vitrified clay pipe (VCP) has been in use since ancient Babylon. The material is abrasion-resistant and acidic erosion and...

Everything You Need to Know About Grouting in Trenchless Projects Everything You Need to Know About Grouting in Trenchless Projects Everything You Need to Know About Grouting in Trenchless Projects 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...

Steel or Concrete for Temporary Trenchless Shoring? Steel or Concrete for Temporary Trenchless Shoring? Steel or Concrete for Temporary Trenchless Shoring? 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...

A Look at Hydro Excavation A Look at Hydro Excavation A Look at Hydro Excavation A Look at Hydro 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...

Trenchless Operations Safety Do’s and Don’ts Trenchless Operations Safety Do’s and Don’ts Trenchless Operations Safety Do’s and Don’ts 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...