关键词: 封闭式储煤场, 结构设计, 落煤筒, 返煤暗道

Abstract: In the production system of coal mine ground， there are several ways of raw coal storage： circular or square silo，underground or semi-underground storage bin and enclosed coal yard. Because enclosed coal yard has many advantages， such as large reserves， low cost， short construction period，simple process, etc. So it is widely used in modern coal mines. Combined with the design of enclosed coal yard with a diameter of 100m， the paper introduces load value， structural analysis and foundation design of coal chute， return coal tunnel， the coal retaining wall，to provide reference for the similar engineering.