Microtunneling or microtunnelling is a tunnel construction technique used to construct utility tunnels from approximately 0.35–4 m (1 ft 2 in – 13 ft 1 in) in diameter.

Oct 28, 2024 · The microtunneling method is an advanced trenchless construction technique used to install pipelines, conduits, and other underground utilities with minimal surface disruption.

Microtunneling systems are remotely-controlled and comprise several pieces of machinery or subsystems that function together. They are managed by an operator who monitors and …

Dec 5, 2025 · What is Microtunneling? Microtunneling is a construction method that uses a small, remote-controlled Microtunnel Boring Machine (MTBM) to install pipes underground without …

ADS AND TOLERANCES 20 22 The pipe jacking technique Pipe jacking/microtunnelling* is a non-disruptive method of installing utility tunnels and conduits by thrusting pipes through the …

Oct 19, 2021 · Microtunneling is a trenchless construction technique. It’s used for constructing small-diameter utility tunnels, which can be 20 to 160 inches in diameter. To construct these …

Microtunneling is a trenchless method of sewer construction. It is effective in soft, unstable, and wet soils and can crush large boulders. The tunneling process is remotely controlled and can …

Microtunneling is defined as a small-scale tunneling method used for installing underground pipelines with minimal surface disruption, employing a fully automated mechanized tunneling …

Aug 21, 2025 · When access is limited and tolerances are tight, microtunneling delivers trenchless installs with millimeter-grade control for gravity sewers, pressure mains, and utility crossings …

The American Society of Civil Engineers (ASCE), the North American Society for Trenchless Technology (NASTT), and the North American Microtunneling Association (NAMA) acknowl …