Microtunnelling Technology: Revolutionizing Underground Construction

microtunnelling technology,

Twentieth-century advancements in tunnelling technology have given rise to microtunnelling, a technique that facilitates the accurate and efficient construction of underground infrastructure with minimal surface disturbance. With its roots in the traditional pipe jacking technique, microtunnelling has revolutionized the installation of pipelines and conduits by employing remotely controlled, laser-guided tunnel boring machines (TBMs) and specialized jacking systems. This rapidly expanding construction method aligns with the growing need for versatile and robust underground infrastructure to support today’s increasingly urbanized societies. In this enlightening blog post, we will dive into the world of microtunnelling technology, exploring its applications, advantages, and how Technicore Underground Inc Underground Inc. leverages this cutting-edge method to provide high-quality and cost-effective underground construction solutions.

Microtunnelling is primarily used for the installation of gravity-flow and pressure pipelines for water, wastewater, stormwater, and various utilities. This technique is particularly suited for pipeline installations beneath cross-contaminating water sources, highways, railways, or ecologically sensitive areas where traditional open-cut methods may not be feasible or environmentally sustainable. With a range of available TBMs catered to diverse ground conditions and differing pipe diameters, microtunnelling projects can be tailored to the specific requirements of each undertaking.

Throughout this in-depth exploration of microtunnelling technology, we will delve into the equipment, processes, and advantages associated with this versatile tunnelling technique. We will also showcase how industry leaders like Technicore Underground Inc Underground Inc. apply their expertise, innovation, and commitment to excellence in the field of microtunnelling to execute precise, efficient, and highly effective underground construction projects. By deepening our understanding of microtunnelling and its applications, we can truly appreciate the impact this pioneering method has on transforming the landscape of underground infrastructure development for our modern societies.

I. The Microtunnelling Process and Equipment

Microtunnelling employs state-of-the-art equipment and processes for efficient and precise underground construction:

  1. Tunnel Boring Machines (TBMs): Microtunnelling uses unmanned, remotely controlled TBMs equipped with various cutting heads designed for specific ground conditions. These machines not only excavate the tunnel but also simultaneously install the pipeline casings.
  2. Pipe Jacking System: As the TBM advances, the pipeline casings are hydraulically pushed into the borehole using a jacking system, maintaining consistent pressure to ensure the correct alignment and thrust.
  3. Slurry or Bentonite System: In certain ground conditions, a slurry or bentonite system is employed to stabilize the excavated face and facilitate removal of excavated soil, with a slurry separation plant placed above ground to manage the mixture.
  4. Control and Guidance System: A control unit placed on the surface enables operators to remotely control the TBM while using a guidance system to track its progress and continuously monitor accuracy.

II. Applications of Microtunnelling

Microtunnelling offers a versatile solution for underground infrastructure projects:

  1. Water and Sewer Pipelines: Microtunnelling is commonly used for the installation of water and sewer pipelines, ensuring precise, accurate placement and minimizing surface disruption.
  2. Utility Infrastructure: Microtunnelling is also utilized for the construction of gas, communication, and power infrastructure, ultimately providing communities with essential services in a timely and efficient manner.
  3. Drainage and Stormwater Systems: The process is ideal for installation of stormwater drainage infrastructure, particularly in urban areas or sensitive environmental zones where traditional open-cut methods are not viable.
  4. Road and Railway Crossings: Microtunnelling is often employed for the construction of crossing installations beneath highways or railways, allowing infrastructure development without disrupting transportation services.

III. Advantages of Microtunnelling Technology

Microtunnelling offers numerous benefits over traditional open-cut construction methods:

  1. Minimal Surface Disturbance: Microtunnelling allows for construction with little to no surface disruption, reducing environmental impact and preserving natural landscapes or urban settings.
  2. Precision and Accuracy: The use of a guidance system and laser alignment ensures accurate placement of pipes in their designated position, minimizing the risk of costly project adjustments or remediation work.
  3. Efficiency and Cost-Effectiveness: Microtunnelling can significantly reduce construction timelines, as pipelines can be installed concurrently with the excavation, lowering overall costs and reducing project lead times.
  4. Versatility: The range of available TBMs and jacking systems makes microtunnelling adaptable to various ground conditions, uniquely catering to pipelines of various diameters and materials.

IV. Technicore Underground Inc’s Emphasis on Microtunnelling Excellence

Technicore Underground Inc Underground Inc. leverages microtunnelling technology, expertise, and best practices to execute successful underground construction projects:

  1. Expertise and Experience: Technicore Underground Inc’s team of professionals possesses extensive experience and knowledge in various microtunnelling techniques, ensuring optimal solutions for even the most complex projects.
  2. Cutting-Edge Equipment: Utilizing the latest microtunnelling equipment and state-of-the-art TBMs, Technicore Underground Inc is capable of executing projects with the utmost precision and efficiency.
  3. Commitment to Quality and Safety: Adhering to stringent quality control measures and safety standards, Technicore Underground Inc ensures project success and retains a firm commitment to minimizing environmental impact.
  4. Tailored Project Solutions: Technicore Underground Inc’s expertise in microtunnelling enables the development of customized solutions to address specific project challenges and unique project requirements.


Microtunnelling technology has revolutionized the world of underground infrastructure, providing a powerful solution for achieving precision, efficiency, and minimal surface disruption. As industry leaders like Technicore Underground Inc Underground Inc. continue to leverage this innovative method, a new era in underground construction emerges. Microtunnelling offers a glimpse into the future of sustainable and environmentally conscious development, where innovation and expertise intersect to deliver reliable and robust underground infrastructure for our modern societies.

By examining microtunnelling technology in detail and understanding its applications and benefits, we gain valuable insights into the transformative potential of this powerful construction technique. Technicore Underground Inc’s dedication to advancing the field of microtunnelling in Ontario showcases the commitment to progress and excellence that will continue to shape the future of underground infrastructure and contribute to the growth and development of the communities we call home.