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 ?
Automatic In-Bay System and Conveyor Tunnel System are on the rise over the automotive industry targeting the demography.
Summary: Automatic In-Bay System and Conveyor Tunnel System are on the rise over the automotive industry targeting the demography.
While the NJHP has seen diversion of River Neelum through a tunnel system the proposed KHP also envisages diversion through a tunnel system of River Jhelum.
Cairo: Egyptian President Abdul Fattah Al Sissi Sunday inaugurated a massive tunnel system built under the Suez Canal as part of his administration's efforts to increasingly linking the Sinai Peninsula to the mainland.
The survey found that 85 percent of respondents support the states of New York and New Jersey, Amtrak and the federal government partnering to fund the Gateway project; 90 percent think a new rail tunnel is important to people being able to get to their jobs and conduct business; almost 80 percent think a new tunnel system would improve commuting and traveling between New York and New Jersey and on the Northeast corridor; 80 percent believe a new rail tunnel is important to housing prices in the region; 72 percent think the federal government should help pay for a new rail tunnel; more than 60 percent say delays have gotten worse in the last five years; and more than 60 percent worry about a failure or breakdown in the current tunnel.
With Rating Outlook Stable, the 'AA-' senior and 'A+' subordinate long-term ratings reflect the bridge and tunnel system's essentiality to the New York metropolitan region, which has resulted in long-term traffic stability and minimal demand elasticity.
Roughly 20 passengers were the first to take advantage of the new tunnel system on Wednesday.
Rescue teams have earlier located the main entrance of the tunnel but discussions are still being done if rescuers would be allowed to go inside the tunnel system.
Is a Massive Tunnel System the Answer to Houston's Flood Woes?
Picture this: Another massive rainstorm overtakes Houston, but instead of inundating homes and businesses, much of the floodwater funnels into a massive underground tunnel system that whisks it away to the Houston Ship Channel.