In trenchless construction, blind wells are horizontally constructed wells where drilling and installation take place at one end only. In other words, the ground is penetrated only once at the launch pit. Blind-wells are constructed using horizontal directional drilling techniques whereby a pilot… 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…
The cut and cover method is a traditional form of tunneling that involves opening up the ground surface and excavating to the required depth. Once the construction is complete, the excavation is backfilled. The method is used when excavation is possible and economical from the surface,…
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
Microtunneling and horizontal directional drilling (HDD) are trenchless pipeline installation methods that are used extensively for laying pipelines. When two such tried and tested methods are combined, the result is usually a hybrid that incorporates the advantages of both methods. The…
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 construction industry has been in the spotlight forever when it comes to carbon emissions. Construction accounts for almost 1/3rd of global energy consumption, and thus is responsible for the same amount of carbon dioxide emissions. To minimize the global carbon footprint left behind…
By: Bertus Vos | Co-Founder and Principal Engineer, BlueFox Engineering
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…
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…
Blind Well
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…
Latest Article
When it comes to plumbing services, most people think of men wielding wrenches and fixing pipes. However, times are changing, and the plumbing…
