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Abstract: As a new type of material, ceramsite concrete has been widely used in civil engineering. Inthis paper, a trapezoidal shed type ceramsite concrete filled steel tube support used to maintain roadwayin coal minesis designed, and its reasonable cross-section size is determined through stress analysis. Afternearly a year of trial use in the return air roadway of Fengming Coal Mine , the steel pipe ceramsite con-crete support is suitable for roadways that are less affected by dynamic pressure. The support has advanta-ges of light weight , high support strength, safe use, and reasonable economic benefits, and has certainpromotional value.

Key words: ceramsite concrete support , section size , economic performance