Page 40 - DOUCE HYDRO 2013

ydraulic cylinders are used to push the girder spans
onto the pillars from one end. Each system includes both a
lifting cylinder and pushing cylinders which are
synchronized together by hydraulic power units with
control panels. Translation velocity is around 10 m/hour
and working pressure up to 370 bar. At the end of each
project, the reliable hydraulic cylinders have successfully
lifted and pushed thousands of tons.
H
es vérins hydrauliques sont utilisés pour pousser le
tablier du pont, de pilier en pilier, à partir d’une extrémité.
Chaque système inclut un vérin de levage, des vérins de
poussée qui sont synchronisés ensemble et des centrales
hydrauliques avec panneau de commandes. La vitesse de
translation est d’environ 10 m/heure et la pression de
travail de 370 bar. A la fin de chaque projet, la fiabilité des
vérins hydrauliques permet avec succès d’avoir poussé et
levé des milliers de tonnes de structures.
L
Génie civil : ponts
Bridges
Chalifert High Speed Train Viaduct (France)
Douce-Hydro’s lifting and launching systems push the bridge deck.
A total of 32 000 tons of deck was pushed over 3,2 km, allowing the
construction of the high speed train rail tracks.
4 SA Hydraulic Cylinders dia. 530 mm, Stroke 70 mm
8 DA Hydraulic Cylinders 250 x 180, Stroke 250 mm
8 DA Hydraulic Cylinders 110 x 75, Stroke 1 000 mm
8 power packs + 4 sets of general mechanism
Civil Engineering :
A W O R L D W I D E P R E S E N C E I N V A
40
Lifting, launching & pushing
equipment to move massive
structures into position
Vérins pousseurs de tabliers
de pont