| 摘要 |
<p>A support carriage (9, 12, 9', 12') moves the shuttering section and consists of sections connected by an extendable horizontal piece. The carriage takes the shuttering (5, 6) in a cantilevered position, a and the shuttering is moved in a lengthwise direction along the channel being concreted. The carriage has lifting devices (12, 12') for raising and lowering the shuttering. The carriage is in the form of supports (9, 12, 9', 12') which can be moved and pivoted and adjusted by means of lifting devices (14, 14'). The carriage consists of a front (9, 12) part moving on a bottom granular layer (2), and of a back (9', 12') part moving on a finished layer of concrete (1). The front and back parts of the carriage are hinged onto transverse supports (6).</p> |
