Wireline, in the context of trenchless technology, is a guidance system for guiding a drill head during the process of underground horizontal directional drilling (HDD). The position and altitude of the drill head is transmitted to the monitoring system housed within the drill operator with the… View Full Term
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By: Tabitha Mishra | Civil Engineer, Technical Content Writer
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
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…
A backdrop manhole is a drop shaft installed either externally or internally in a manhole in a sewer network. Backdrop manholes connect pipes of differing invert levels and allow for the pipe at a higher level to connect to the lower level pipe with minimum fall. Typically, backdrop…
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…
Drilling mud, or drilling fluid, is a critical but often overlooked contributor to the overall success of a trenchless construction project. The wrong drilling mud has the potential to cause severe problems like frac-outs or borehole collapse. The right drilling fluid can make a…
By: Tabitha Mishra
Site investigation is an integral part of any construction project, and should be attributed as much significance as would be ascribed to any other part of the project. The risk associated with undertaking a project without adequate site investigation is monumental. It's wiser to be…
Horizontal directional drilling (HDD) is a conventional method employed by cities and construction workers to install utilities and plumbing underground. Unlike traditional underground installation, HDD does not require open trenches to complete. Equipment Needed for HDD As horizontal…
By: Denise Sullivan
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…
By: B
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…
Microtunneling and guided boring are often erroneously used interchangeably in the construction industry. While both these trenchless boring methods may seem identical, there are a number of key differences between the two that need to be considered when deciding which technology is…
By: Krystal Nanan | Civil Engineer
In the realm of underground infrastructure repair or installation, trenchless technology has revolutionized how professionals approach projects. This innovative method…
By: Chad Decker | Founding Partner, Devco Development and Engineering
Installing utilities like water, electricity, gas, and telecommunications infrastructure often involves disruptive processes that can inconvenience communities, disrupt…
By: Trenchlesspedia Staff
Horizontal Auger Boring offers a streamlined approach to installing underground pipelines, conduits, and cables without the need for extensive excavation. But, like any…
There are two primary methodologies within the realm of underground construction: trenchless and cut-and-cover. Both methods have distinctive characteristics and…
Trenchless methods are efficient and environmentally sustainable options for many projects, but require careful consideration of the equipment used. To select the most…
In the fields of engineering and construction, pipe repair is essential to the upkeep and maintenance of infrastructure. My role as a managing partner at Devco…
Pipe bursting is an advanced trenchless solution designed to replace deteriorating pipes without the need for extensive excavation. By employing different techniques,…
When it comes to trenchless excavation, choosing the right trenchless boring method is crucial to the success of your project. Trenchless boring, also known as…
Horizontal directional drilling (HDD) and auger boring are two common methods of trenchless excavation used in construction projects. Both methods offer unique benefits…
Trenchless technology has revolutionized the construction industry in the past few decades. With the advent of trenchless techniques like pipe jacking and…
The inadvertent return of drilling fluid is common in horizontal directional drilling (HDD) projects, and though not harmful to the environment, inadvertent returns are…
Requirements for horizontal directional drilling (HDD) environmental planning and construction monitoring vary greatly across North America, but regulatory obligations…
Wireline
By: Bertus Vos
Bertus Vos is one of the co-founders and principal engineers at BlueFox Engineering. He holds a bachelor of engineering degree from the University of…
Della is a Civil Engineer with extensive yet progressing experience in a consulting industry. Her experience primarily focuses on underground…
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Sky Cato serves as the Director of Operations for Internal Pipeline Solutions and manages much of the day to day operations. He has 14 years of…
