| 摘要 |
Method for building structures, particularly passages under operating railways or the like. The invention relates to a method for considerably reducing the occurrence and duration of temporary service interruptions required for building underpasses. After temporarily interrupting service on the tracks (9) and placing said tracks perpendicular to the site in the embankment of the passage that is to be built, the top of the embankment is cleared of soil in order to allow the deck (4) to be built and sealed (7), then the work area is backfilled (8) and the tracks are put back in place in order to allow traffic to resume at the end of the service interruption period. The side walls (10) of the passage are built by digging channels down to the foundation, placing reinforcement and pouring cement therein, then the interior of the passage is graded in preparation for the eventual permanent bottom slab (16). |
| 主权项 |
1. A method enabling the construction of structures such as railway, highway, road, pedestrian or other passages, through earthworks or embankment supporting one or multiple rail, motor, road, pedestrian or other ways, after having temporarily interrupted the flow of the traffic on these ways, the method comprising:
removing the ways or a part thereof, at the place provided in the embankment support of these ways for the future passage to be made, sufficiently excavating the embankment, to implement the deck, then its backfilling and re-laying the ways in order to restore the traffic at the end of the period of temporary traffic interruption; and making the side walls of the passage from the sides of the embankment, by the making of galleries sunk to the level of foundations, the construction of the aforementioned foundations according to the characteristics of the soils encountered, the making of side walls in the interior of the galleries, then excavations in the interior of the passage, with installation of temporary and/or final retaining structures and shorings in order to avoid detrimental movement of the frame of the structure. |
