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Trenchless ConstructionUnderstanding the 4 Stages of Site Investigation
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
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Trenchless Rehabilitation
The 5 Best Pipe Joining Methods You Can Always Depend On
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
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Trenchless Rehabilitation
Trenchless Rehabilitation for Gas Lines: How to Detect a Gas Leak
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
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Hoop Stress
Hoop stress is the stress that occurs along the pipe's circumference when pressure is applied. Hoop stress acts perpendicular to the axial direction. Hoop stresses are tensile and generated to resist the bursting effect that results from the application of pressure.Three principal stresses...
Nominal Diameter
Nominal Diameter is also known as the mean or average outside diameter and is represented by DN. It is neither equal to the inner diameter (ID) nor the outer diameter (OD) of the pipe. Nominal is a word that denotes non-specificity and in this case, identifies the approximate inner diameter with a...
Invert level
An invert level is defined as the elevation of the inside-bottom of a pipe, trench, culvert, or tunnel. It may also be considered the "floor level" of a pipe.Invert levels are essential for assessing the flow in a piping system. For example, the invert of a municipal sewer connection can...
Understanding the 4 Stages of Site Investigation
Site investigation may be considered the most important part of any project, because without it, projects are likely to run into unexpected problems.
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
The 5 Best Pipe Joining Methods You Can Always Depend On
Proper pipe joining methods leave the lines melded together without leaks. Choosing the right approach has many variables.
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
How to Tell if Your Home Has Asbestos Cement Pipes
Many homeowners do not know they have asbestos lines until one of them breaks allowing fibers to enter the system. Rehabilitation using lining, pipe bursting, or reaming techniques eliminate the problem.
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
What are the differences between a TBM and a MTBM?
Tunnel boring machines (TBMs) and microtunnel boring machines (MTBMs) are used to construct underground tunnels and passages with circular cross-sections. They both use a drilling mechanism, known as a cutting head, to remove material and advance the equipment forward.However, both these pieces of...
By: Krystal Nanan | Civil Engineer
What are the different types of gel strengths?
The gel strength of drilling mud (or drilling fluid) is the shear stress in the fluid at a low shear rate after it has been static for a specific period of time. The parameter gives a measure of the inter-particle forces in the mud once drilling has stopped.The gel strength is one of the most...
By: Krystal Nanan | Civil Engineer
Why is horizontal directional drilling better for the environment?
Horizontal directional drilling (HDD), also known as directional boring or horizontal earth boring, involves using a surface drilling rig to install underground pipes, conduits, cables and any other utility in a shallow arc along a predefined bore path. This technique is so named due to its ability...
By: Krystal Nanan | Civil Engineer
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