Abstract: In order to promote the Sichuan Tibet railway to achieve the goal of "high-quality project, innovation project, green project, safety project and integrity project", the finished product silo of Niyanghe sand and gravel processing plant adopts the fully closed air fi lm process to keep the fi nished aggregate in a stable closed environment, so as to ensure that the quality of fi nished products is not aff ected by rain, snow, wind and sand. Combined with the actual situation of the project, this paper briefl y discusses the key points of the construction of infl atable membrane shed in sand and gravel yard for reference.