# Laboratory study on mechanical behavior of hollow π-type steel–concrete composite support in loess tunnel

> Research article (Tunnelling and Underground Space Technology, 2023) · cited 29× · AI/ML

**Wikidata**: [openalex:W4386265687](https://www.wikidata.org/wiki/openalex:W4386265687)  
**Source**: https://4ort.xyz/entity/laboratory-study-on-mechanical-behavior-of-hollow-type-steelconcrete-composite-support-in-loess-tunnel