tunnel system

tunnel system

[′tən·əl ‚sis·təm]
(mining engineering)
A method of mining in which tunnels or drifts are extended at regular intervals from the floor of the pit into the ore body.
References in periodicals archive ?
The airstrikes in Iraq were concentrated around Sinjar, Ramadi, and Mosul, destroying weapons caches, buildings, two ISIS headquarters, and a tunnel system.
The attacks also destroyed an underground tunnel system and a large underground cache of weapons and ammunition, the statement added.
The tunnel system is listed as the Merseyside City Region's biggest financial asset, worth around PS468m.
6 billion effort to construct a deep tunnel system that will transport combined stormwater and sewage to DC Water's Blue Plains Advanced Wastewater Treatment Plant, significantly reducing combined sewer overflows (CSOs) to area waterways.
They state that no-one can sing, dance, shout, whistle or play a musical instrument on board and spitting is banned on the shuttle train and in any part of the tunnel system.
With our high-tech tunnel boring machines and absolute reliability we will contribute everything possible to ensuring Doha gets a metro tunnel system to the highest global standards," he added.
Arkansas is home to other structures like this: A tunnel system runs like a spider web throughout downtown Eureka Springs; the Rock Street Tunnel in Little Rock was completed in 1974 and drains water from the Interstate 630 corridor.
Even today, this mountain road can be a challenge though the train journey is now much more slick through a tunnel system.
The construction of the hydroelectric power plant involves diversion of the Neelum River through an underground tunnel system.
The reason is this is the time of year when a mother mole is evicting her offspring from her tunnel system - forcing them on to the surface to crawl for a short-distance before burrowing under again to create their own new subterranean territories.
Tunnel system is one of the best industrial scales in many countries including America, Canada, China, Turkey etc.
This tunnel system will reduce combined sewer over-flows into the Anacostia by 98 percent.