By: Denise Sullivan | Technical Writer @ Trenchlesspedia
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
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...
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...
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...
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
Proper pipe joining methods leave the lines melded together without leaks. Choosing the right approach has many variables.
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
Pipe jacking is very efficient and employs a full face machine, but it has its limitations.
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
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
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 better suited...
By: Krystal Nanan | Civil Engineer
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
Requirements for horizontal directional drilling (HDD) environmental planning and construction monitoring vary greatly across North America, but regulatory obligations...
Well-used drilling fluid will be full of unwanted solid content from the borehole after a drilling operation. The drilling fluid picks up all the soil and rock cuttings...
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
Horizontal Directional Drilling (HDD) is often a preferred trenchless pipe installation approach. It is completed in multiple stages including pullback, where a large...
By: Della Anggabrata | Civil Engineer
Drilling mud is a standard component of many horizontal directional drilling (HDD) construction projects. It plays a vital role in stabilizing the bore, removing the...
By: Phil Kendon | Technical Writer @ Trenchlesspedia
Horizontal directional drilling (HDD) is a commonly used trenchless installation method. This article discusses the rig components, the machine mechanism, typical...
By: Della Anggabrata | Civil Engineer
Pipe ramming works on the principle of soil displacement and is an excellent method for pipeline installation where ground loss is expected due to shallow depth of...
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
Impact moling is one of the oldest trenchless methods and remains one of the most common, cheapest and most efficient. It is especially suitable for short length and...
By: Phil Kendon | Technical Writer @ Trenchlesspedia
What is Horizontal Directional Drilling?Horizontal directional drilling (HDD) has come a long way since it first came onto the trenchless scene in the 1970s. It offers a...
By: Phil Kendon | Technical Writer @ Trenchlesspedia
Sewers perform the simple function of moving water or waste streams from a source to a destination, but sewer design is more complicated than you may think. Most sewers...
By: Phil Kendon | Technical Writer @ Trenchlesspedia
Trenchless construction projects suffer from the same pressures as any construction project - those that make you fall behind schedule and increase cost. However, there...
By: Phil Kendon | Technical Writer @ Trenchlesspedia
Horizontal Directional Drilling (HDD) and microtunneling are trenchless pipeline installation techniques widely used for installing water, sewer, gas, electricity, and...
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
City workers might always seem to be repairing or replacing underground utility lines, and it is never convenient. Traditional repair work requires trenches and road...
By: Denise Sullivan | Technical Writer @ Trenchlesspedia
Imagine a surgeon performing surgery with the lights off: that's what it would be like to dig into the ground without first locating and marking underground...
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
This article covers an overview of trenchless pipe installation methodology, called pipe bursting. It includes aspects in the design consideration, review of effect to...
By: Della Anggabrata | Civil Engineer
Drilling fluid (drilling mud) is an essential element of many trenchless construction projects. Over the years, the science of drilling fluid has developed extensively,...
By: Phil Kendon | Technical Writer @ Trenchlesspedia
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By: Bertus Vos | Co-Founder and Principal Engineer, BlueFox Engineering
By: Klaus Langenbach | Managing Director, SAERTEX multiCom LP
By: Tabitha Mishra | Civil Engineer, Technical Content Writer
By: Bertus Vos | Co-Founder and Principal Engineer, BlueFox Engineering
By: Krystal Nanan | Civil Engineer
Krystal is a civil engineer and project manager with an MSc in Construction Engineering and Management. Her experience includes the project management of major infrastructure projects, construction supervision, and the design of various infrastructure elements including roadway, pavement, traffic safety elements and drainage.
Della is a Civil Engineer with extensive yet progressing experience in a consulting industry. Her experience primarily focuses on underground infrastructure projects in the Lower Mainland of British Columbia, Canada. She has a unique technical skill that combines civil and geotechnical engineering. Some of her projects are large diameter watermain, water and wastewater treatment plants, sanitary forcemain, and land developments. She is not only a key contributor on the engineering design and project management, she also provides a solid foundation for every success that the team has achieved.
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 pipeline pigging & rehabilitation experience. Sky is a third generation in the industry and attributes much of his passion for innovation to his father and grandfather.