pressure tunnel

pressure tunnel

[′presh·ər ‚tən·əl]
(civil engineering)
A waterway tunnel under pressure because the hydraulic gradient lies above the tunnel crown.
References in periodicals archive ?
The headrace system is formed by a pressure tunnel that leads to two pressure lines.
34 times more than the flow discharge in free mode and we will have turbulence in the case of non-aeration to the pressure tunnel in the spillway.
The delegation along with WAPDA Chairman had a detailed round of the site and witnessed the construction activities at weir (dam), head race channel, sand trap, head race tunnel, pressure tunnel, pressure shaft, surge chamber, and power house area.
The new MetroWest Tunnel will be a 14 foot-diameter, cast-in-place, concrete-lined pressure tunnel excavated by tunnel boring machines in granite from 200 to 600 feet deep.
Limited Tenders are invited for Re-Steel Lining At Umrong High Pressure Tunnel Of Kopili Hydro Electric Plant, Umrongso, Dima Hasao, Assam.
Golen Gol Lot-II involves construction of diversion weir, intake, gravel trap, sand trap, headrace tunnel, pressure shaft, pressure tunnel and roads.
The 270-foot high structure, which contains nine (9) levels of valved water conduits for controlling both the quantity and water temperature of the reservoir discharge, is situated at the portal of the P1 Pressure Tunnel, the construction of which was previously awarded to the Atkinson-managed venture.
Both the dam and the dam Moiry Toutemagne are each connected via a pressure tunnel and a pressure line to the power plant Mottec.
The contract is for construction of the P-1 Pressure Tunnel which will transport water between the inlet/outlet tower in the new reservoir and the P-1 Pumping Plant located adjacent to the San Diego Channel.
Limited Tenders are invited for Re-Steel Lining At Umrong High Pressure Tunnel At Upstream Of Y- Piece Of Kopili Hydro Electric Plant ( Khep),Neepco Ltd.
stage i implementation of research and design works for updating the detailed design and preparation of technical documents for the award of construction works for the project increasing the volume of the lower reservoir of chaira with the construction of the dam yadenitsa and reversible pressure tunnel connection with dam chair;
7 mm velocity, Pressure tunnel along with replacement damaged glass panel and repair/modification of inspection and storage sheds near short proof range No.