A robot that can dig quickly and deeply into mud or wet sand could one day help lay underwater cables, dig up and detonate underwater mines, or anchor machines to the seafloor, researchers say. The ...

A chronicle of an engineering marvel and the challenges that almost brought it to ruin. Massive tunnel boring machines gnawing their way through rock and chalk, digging not one tunnel but three. A ...

The crawler-mounted "Path-Digging" Loader was used in road construction and excavation. It could move up to 100 feet per minute when relocating and 2 feet per minute when digging.George E. Haiss and ...

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The flexible Bucyrus-Ruth model HU Dredger is shown in travel position. An operator hand cranks the steering adjustment of the remote crawler on the Ruth Dredger. The Ruth Dredger was a unique ...

Digging tunnels has become easier and safer thanks to custom-designed tunnel-boring machines. Tunnel-boring machines (TBMs) could be the ultimate power tool. They're monstrous, weighing millions of ...