Novel cable trough structure for railway passenger dedicated line

A novel cable trough structure for a railway passenger dedicated line is configured to effectively simplify a cable trough construction process, improve construction efficiency, and ensure smooth horizontal drainage. The cable trough is composed of a trough body prefabricated member and a cover plate prefabricated member, and is disposed on two lateral sides of the top of a subgrade. The subgradeincludes a subgrade bed surface layer and a subgrade bed bottom layer. The cable trough further comprises: a mounting groove, a plate-shaped concrete preformed member, and a water-repellent material paving layer, wherein the mounting groove has an L-shaped section and is formed by a subgrade bed surface layer lateral end surface and a subgrade bed bottom layer top surface; the plate-shaped concrete preformed member is located under the outer bottom surface of the mounting groove and sinks into the subgrade bed bottom layer; the upper transverse section of the water-repellent material paving layer is bonded to the surf