Sentence examples for screw jacks from inspiring English sources
As the shield was pushed forward by screw jacks, the tunnel behind it was lined with cast-iron rings.
Brunel built a giant iron casing, or shield, that could be pushed forward through soft ground by means of screw jacks, while miners dug through shutter openings in the face.
The adjustments of the curvatures and dimensions for the construction of curved girders are made using screw jacks and frames attached to exterior of the side walls.
Screw jacks were used to simulate a non-yielding foundation and three types of spring with various spring constants were used to simulate deformable foundations with maximum foundation settlements of approximately 2%, 5%, and 9% of the total wall height.
Screw jacks and springs were used to simulate undeformable and deformable grounds, respectively, with various maximum foundation settlements of Smax ≒ 0, 2.5, 5, and 10% of the backfill height (H).
Before bringing the crane to the location, screw jacks were used to shore up the underground garage roof to hold the crane's weight.
A screw jack converts torque (turning moment) to thrust.
The proposed mechanism consists of cranks and a screw jack.
It is well known that vibrations can occur in screw jack mechanisms under certain conditions, especially during downward motion.
Load was applied by a screw jack and measured on proving ring of capacity 10 kN on bare frames for precise results.
To satisfy this precondition, a compact ball screw jack system sustaining a shutter gate by two shafts with rigid flanges was designed.
