With asbestos cement mortar pipe being used as inner liner, concrete is cast to form hollow slab.

Through the comparison of cast in place concrete plate and precast hollow plate the advantages of cast in place concrete plate and the disadvantages of using precast hollow plate are pointed out.

Ganjiang bridge in Jishui is the first box-arch bridge, which has continuous cast boards and girders construction on the arch and whose piers made from reinforced concrete are hollow.