Abstract：Research purposes：Through the discussion on the structure design of a new type of Supporting Structure-U-Shape Groove, this paper mainly analyzes its key technical issues, such as the theoretical calculation model, loads, reinforcement and structure shop drawing for providing the solution to the focal and difficult points in the structure design of U-Shape Groove and providing some reference to the similar design.
Research conclusions：Now, the general and feasible method to analyze the Structure U-Shape Groove is based on the elastic theory. All the loads including their combination behavior should be considered reasonably. The structure should be designed as the beam with single reinforcement, and some essential structure measures should be taken on the sections where there is stress concentration. Besides the stressed steel bar, the hoop, the distribution reinforcement and the reinforced steel bar for the control section are needed. In unfavorable geological area, the structure can be used with other engineering measures to meet the design requirements.
2009, Vol. 26 
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