摘要:
The present invention relates to a system suitable for minimising the risks consequent to spillage of flammable or polluting liquids in closed environments such as in particular, but not necessarily, road or railway tunnels, subways or underpass.
摘要:
A structure for a railway track made of prefabricated units and a method for its construction, wherein the structure comprises a multi-layered rubble bed (2, 3, 4, 5) for absorbing vibrations of the railway track generated by passing trains, the structure further comprising wedged panels (6) and supporting panels (9) placed next to each other in turns longitudinally along the railway track and connected to each other in dovetail joints.
摘要:
The invention relates to a rail attachment system (1) for attaching a rail (2) to a concrete support slab (3a) or a concrete sleeper (3b) or to a steel structure comprising an intermediate plate (4), a rail attachment plate (5) with angle guide plates (6, 6b) arranged thereon, at least two first tensioning clamps (7a) for clamping the rail foot (2a) to the rail attachment plate (5) as well as screws (9) and/or ankle bolts (10) and at least two second tensioning clamps for screwing the rail attachment system (1) to the underlying surface, characterized in that an elastic intermediate layer (8)is arranged between the rail (2) and the rail attachment plate (5), and the intermediate plate (4) is composed of a highly elastic material and/or comprises a steel plate (4), at least two second tensioning clamps (7b) for clamping the rail attachment plate (5) to the substructure, preferably via the intermediate plate (4), wherein the first and second tensioning clamps (7a, 7b) are embodied in a highly elastic fashion with a high tensioning force, are provided, and at least one upper sliding plate (12) is arranged between the rail foot (2a) and a first tensioning clamp (7a), and at least one lower sliding plate (13) is arranged between the rail foot (2a) and the elastic intermediate layer (8) and is attached by means of a steel support (14) in the case of a steel substructure.
摘要:
A method is described for the installation of slab tracks in tunnels, in particular tracks on a slab of concrete, with the optimised design and execution characteristics, and substantially increased performance compared to the normal known methods. The method includes a succession of phases executed in order, with the help of an auxiliary track, Consisting of the design of the construction section, the construction of the railway yards, assembly of the auxiliary track from the evacuation platform, execution of the foundation base, assembly of the track in slabs, transitions from slab track - ballast track, and placement of long bars and welding.
摘要:
There is disclosed an assembly (100) for supporting and fastening to the ground (10) rails railway and/or subway lines with cushioning of vibrations, comprising a plurality of slabs (1) comprising fastening means (11) in the form of a parallelepiped formed by a rigid central structure (15) fixed to the plane (10) bearing said slab and by a cushioning frame (12) which surrounds said central part (15), said means being housed in a through cavity (8) formed by two recesses (4) of two adjacent slabs (1) formed on the sides (5) of said slabs (1) perpendicular to the longitudinal axis (3) of said rails (21).
摘要:
The invention relates to a railway superstructure comprising a track bed mat (10) as a continuous support of a track carrier system. The track bed mat (10) either consists of rubber recycling material having a polyurethane bond, or of polyurethane having a special specification, and has holes that run transversely to the mat plane such that a particular resilience effect with a static bed module between 0.005 to 0.08 N/mm 2 and a dynamic bed module between 0.02 to 0.1 N/mm 2 is achieved.
摘要:
There is disclosed an assembly (100) for supporting and fastening to the ground (10) rails railway and/or subway lines with cushioning of vibrations, comprising a plurality of slabs (1) comprising fastening means (11) in the form of a parallelepiped formed by a rigid central structure (15) fixed to the plane (10) bearing said slab and by a cushioning frame (12) which surrounds said central part (15), said means being housed in a through cavity (8) formed by two recesses (4) of two adjacent slabs (1) formed on the sides (5) of said slabs (1) perpendicular to the longitudinal axis (3) of said rails (21).
摘要:
A method is described for the installation of slab tracks in tunnels, in particular tracks on a slab of concrete, with the optimised design and execution characteristics, and substantially increased performance compared to the normal known methods. The method includes a succession of phases executed in order, with the help of an auxiliary track, Consisting of the design of the construction section, the construction of the railway yards, assembly of the auxiliary track from the evacuation platform, execution of the foundation base, assembly of the track in slabs, transitions from slab track - ballast track, and placement of long bars and welding.