Process for the construction of works under an embankment supprt of a railroad track or the like.

摘要

Process for the construction of a work under a bank of the support of a railroad track (1) or of a roadway, which consists, after having cut the track at the location provided in the slope of the support (2) of this pathway for the passage to produce, and carrying out an excavation (25) by the excavation of the terrain in this location. & br / according to the invention, this process is characterized in that it consists in first producing or have, on either side of the bank, on each side of the excavation and screw - to - each other, two floors plates (3) of the hollow guide for the two frames (13) made of concrete, these floors, which are symmetrical, being disposed on each side of the slope, the frames being respectively carried by these floors such as those - latter are placed opposite to the outside of the excavation, to put in place in a direction parallel to the lateral sides of each hollow frame, at least one traction cable (20), each cable being secured to one end of an anchoring projection (12) provided on the foundation supporting the frame and to the other end into engagement with a jack (19) carried by this frame, so that the traction force exerted on the cable by the jack is translated, by virtue of the reaction on the boss, by a thrust action on the frame, which slides progressively on the floor in order to ensure its penetration into the pit, in front of the raft.