Abstract: The present invention relates to the technical field of engineering technology equipment and methods, in particular to a telescopic multifunctional working vehicle capable of operating in both directions and evacuating transversely, and an application method thereof. The telescopic multifunctional working vehicle comprises a fixing and lifting mechanism and a transverse moving and lifting mechanism. The working vehicle is composed of a front vehicle body and a rear vehicle body, wherein the front vehicle body is connected with the rear vehicle body through a telescopic mechanism used for realizing the contraction and the expansion between the front vehicle body and the rear vehicle body. The working vehicle is further provided with a hanging system used for hanging and moving working devices. A rail clamping device is arranged at the bottom of the working vehicle.

Abstract: It relates to the engineering technology science, in particular to a novel track layer for urban rail traffic engineering and its construction method. The novel track layer comprises lifting and walking trolleys, a connecting truss beam, a track running mechanism and a supporting structure. Horizontal extending and vertical supporting structures of each lifting and walking trolley are operated firstly so as to lift the whole novel track layer to a height at which a track material is hoisted and unloaded. A hoisting car is used to lift up the track material to leave from a flat trunk and a material supporting cushion. The novel track layer continues to walk forward to a designed mounting position of a track section, and then the track material is unloaded. Steel tracks are connected and a temporary track section support is mounted to fix a newly mounted track section.