FOAM LIGHT SOIL RAILWAY SUBGRADE STRUCTURE AND CONSTRUCTION METHOD

摘要

A foam light soil railway subgrade structure. In the subgrade structure, a frame is constructed by using autoclaved aerated concrete blocks (6), and foam light soil (3) is poured into the frame, wherein the frame is constructed by using the autoclaved aerated concrete blocks (6) with the density of 400-500 kg/m³, the foam light soil (3) with the wet density of 550-600 kg/m³ is poured to form an upper light soil (3) subgrade in the railway subgrade, and the foam light soil (3) with the wet density of 500-550 kg/m³ is poured to form a lower light soil (3) subgrade in the railway subgrade. Also provided is a construction method for the subgrade structure.