Prinsess Margriet Tunnel
HEIGHT: 8.0 m
WIDTH: 28.5 m
TOTAL IMMERSED LENGTH: 77 m
DEPTH AT BOTTOM OF STRUCTURE: - 14.35
FABRICATION METHOD: Fabricated in open approach section. Element was cast in four articulated sections to limit shrinkage cracking.
WIDTH: 28.5 m
TOTAL IMMERSED LENGTH: 77 m
DEPTH AT BOTTOM OF STRUCTURE: - 14.35
FABRICATION METHOD: Fabricated in open approach section. Element was cast in four articulated sections to limit shrinkage cracking.
Sneek,
Netherlands
Ministry of Public Works; Rijkswaterstaat
Aannemersskombinatie Prinses Magriettunnel (APM): B.V. Aannemingsmij v/h H&P Voormolen (member of OGEM Building Division) DURA Aannemingsmij BV
Locks and Weirs Division of Rijkswaterstaat
77m
77m
14.35m
Project construction
1978-04-30
1
Two tubes; three lanes each
8m
28.5m
Single element designed to engage the walls of both open-approach structures.
Element was constructed in one of the approaches with transverse wingwalls attached.
The element was floated into position and sealed using inflatable gaskets.
Element was constructed in one of the approaches with transverse wingwalls attached.
The element was floated into position and sealed using inflatable gaskets.
Fabricated in open approach section. Element was cast in
four articulated sections to limit shrinkage cracking.
four articulated sections to limit shrinkage cracking.
Floated into position and lowered by winching. Clearance of wingwalls only 4.5 cm.
Ballast tanks were used.
Ballast tanks were used.
Inflatable gaskets at both ends of element in wingwalls
and along bottom. This arrangement was used as a
temporary seal so that permanent closure could be cast.
and along bottom. This arrangement was used as a
temporary seal so that permanent closure could be cast.
6 mm steel membrane on bottom. Two-ply bituminous membrane on sides and top. Top
protected with layer of concrete.
protected with layer of concrete.
Sand Flow.
Reinforced