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 ?
Holcim Deutschland produced specialized concrete for the extensive underground tunnel system, including easy-to-pump, heavy mixes for radiation shields and underwater placement.
The railway tunnel system of the ltschberg base tunnel (lbt), which is almost 35 km long, consists of 50 km of single-lane railway tunnels with 44 cross-strokes and sprue upgrades on soft 60 and soft 44.
Comba Telecom Systems Holdings Limited (HKSE: 2342), a global leading wireless solutions provider, will deploy a turnkey wireless solution for the longest and busiest highway tunnel system in Brazil, the main highway that connects the metropolitan area of SAaAaAeALo Paulo and the Po of Santos and other coastal regions, the company said.
The smart tunnel system uses facial and Iris recognition technology.
The smart tunnel system uses iris recognition technology, and passengers will have to first stand in front of the tunnel before walking through for facial recognition.
Hamas continues to invest significant amounts of manpower and money into their tunnel system.
The target set to achieve during the last week of April, marking the completion of excavation of over 68-kilometer long tunnel system of the project.
Once completed, the CSO tunnel system will reduce 90 percent of combined sewage overflows into the rivers, which occur during large rain storms.
Perhaps even more damning to the suggestion that the strike accomplished anything, Afghan soldiers in the area were exploring the tunnel system beneath the site of the bombing, which was apparently intact.
ISLAMABAD -- The 969 MW-Neelum Jhelum Hydropower Project is scheduled to attain a major landmark, when the second Tunnel Boring Machine (TBM) will achieve breakthrough of the Right Headrace Tunnel during the last week of April, marking the completion of excavation of over 68-kilometer long tunnel system of the project.
In Iraq, 18 strikes near eight cities hit several Daesh tactical units, a manufacturing facility, and destroyed machine guns, rocket systems, supply caches, and a tunnel system, among other targets, the taskforce said in a statement Friday.
Using photocell technology, the shuttle intelligently detects and positions itself underneath a pallet, delivering and extracting pallets with a deep lane tunnel system.