Roadbed structure for tramcar and construction method thereof

The invention discloses a roadbed structure for a tramcar and a construction method of the roadbed structure, and belongs to the field of urban rail transit engineering.The roadbed structure is characterized in that a surface layer and a base layer of an existing road and a cushion layer with the bearing capacity not meeting the requirement are broken off on a main road, and the cushion layer is excavated and filled with light concrete to serve as a foundation bed bottom layer of the tramcar; the method comprises the following steps of: firstly, pouring a C40 reinforced concrete layer on an existing main road base, then filling 5% cement stabilized graded broken stones on the C40 reinforced concrete layer until the top surface of the original existing road base, then pouring a C40 reinforced concrete supporting layer on the cement stabilized graded broken stone layer, and paving a tramcar track when the strength of the supporting layer reaches 100% of the design strength, so that the technology greatly reduce