Construction method of railway simply supported beam acoustic barrier foundation

The invention discloses a construction method of a railway simply supported beam acoustic barrier foundation. The construction method is characterized by comprising the steps of uniformly placing I-shaped steel on a beam surface in the direction perpendicular to a line, so that after fixation, the I-shaped steel serves as a cantilever; putting steel tubes on the I-shaped steel in the line direction as support points of a suspension form plate; and after the form plate is suspended and reinforced, conducting rebar tying and concrete pouring construction. The railway simply supported beam acoustic barrier foundation is simple in structure, easy to construct and low in cost; labor intensity of workers can be lowered, and the labor amount can be reduced; the structure is safe and reliable, andthe risk is low; the problem of supporting and erection of the high-pier form plate can be effectively solved, and a great number of materials are saved; and the workers perform construction operation on a bridge floor, vert