Design and Application of Ultra-high Performance Concrete Tunnel Arch Frame
Ultra high performance concrete(UHPC),as an innovative cement-based engineering material,has ultra-high mechanical properties,ultra-high durability,and good working performance.Compared with steel,it has lower hidden carbon dioxide equivalent and hidden energy consumption,which meets the requirements of green sustainable development and dual carbon strategy goals.At present,UHPC has been gradually applied in fields such as bridge engineering,construction engineering,and protective engineering,but there is relatively little research and application in tunnel engineering.The article studies and designs a prefabricated UHPC temporary support arch frame,which can replace the steel arch frame used in tunnel construction,and has good applicability and economy.Through application testing in the temporary vertical support construction of a certain tunnel using the CRD method,good results were achieved,verifying the feasibility of UHPC arch frame replacing steel arch frame.
ultra-high performance concretetunnel constructionarch frametemporary supportgreen construction
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