Safety evaluation and feedback analysis of guide wall structure under flood discharge excitation

As an important part of flood discharge building, the discharge safety of guide wall is concerned because of its thin shape and long time flood discharge excitation. Due to the lack of full understanding of fluctuating loads, many domestic and international damage accidents of guide wall have happened during the flood discharge. Taking flood discharge loads as excitation, this paper carries out the prototype dynamic test of three gorges left guide wall and analyzes the regularities of distribution of the root-mean-square of dynamic displacement response on the guide wall in the length direction, gives the main vibration source of guide wall and the main results of numerical simulation, prototype vibration displacement and dynamic stress. At last, based on these results, the guide wall flood discharge safety assessment and feedback analysis are carried out.