MUD CIRCULATION SHIELD IN JAPAN
The paper explains the system for boring tunnels. It gives detailed accounts of the tail seal to maintain slurry pressure, control of water pressure at the tube-head, collapse of the tube-head and the separation of sand and silt from the slurry/water mix. As actual operating examples, it gives a summary of an undersea tunnel excavated by a 7,290-millimeter diameter Mud Circulation Shield (MCS) and a high pressure tunnel with a 4. 3-kilogram-per-square-centimeter water head that was bored by a 2,620-millimeter diameter MCS employing both slurry pressure and compressed air.
International Ocean Development ConferenceJapanese Management Association
- YOSHIDA, H
- Publication Date: 1975-8
- Pagination: 11 p.
- TRT Terms: Boring; Construction; Excavation and tunneling; Highway traffic; Mud; Shields (Tunnels); Slurry; Tunneling; Tunneling machines; Types of machines; Underwater construction; Water pressure
- Old TRIS Terms: Mud circulation shield; Shields (Tunneling); Slurries; Tunnels and tunneling
- Subject Areas: Bridges and other structures; Construction; Highways;
- Accession Number: 00156335
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: Proceeding
- Files: TRIS
- Created Date: Oct 13 1977 12:00AM