A simulation method and simulation system for flood overtopping process of dam dam

Abstract

The invention provides a simulation method and a simulation system for a flood-top collapse process of a dam dam. The method includes acquiring information data of the dam and dam lake, cyclically calculating the water level of the dam lake reservoir, cyclically calculating the flow rate of the dam breach, cyclically calculating the size of the dam breach, and establishing the three-dimensional spatiotemporal data of the dam and the dam lake. Steps such as modeling and 3D dynamic display of the dam top collapse process. The simulation system includes a client terminal for receiving information data of dams and dams. The client terminal includes a dammed lake and reservoir water calculation module, a dam breach flow calculation module, a dam breach size calculation module and a three-dimensional dynamic visualization module. The method fully considers the strong heterogeneity of the dam dam and the water-soil coupling mechanism of the breach, and improves the accuracy of the simulation results of the dam dam's flood overtopping process.

Description

technical field [0001] The invention relates to the technical field of water conservancy and geological engineering disaster prediction, evaluation and prevention and control, in particular to a simulation method and simulation system for a flood top collapse process of a dam dam. Background technique [0002] As a special earth-rock dam, dams are widely distributed at home and abroad and have serious disaster consequences. Once the dam breaks, huge floods will bring devastating disasters to the downstream areas. According to statistics, 87% of the dams fail within one year. In addition, there are often obvious overhead zones and natural sliding surfaces inside the dams. The dams are loose in structure and weak in cementation. Under the action of rainfall and upstream water level, the dam body is prone to local instability or concentrated leakage, resulting in the danger of dam failure. For the above reasons, the dam failure risk of dam dams is much higher than that of arti...

AI Technical Summary

Problems solved by technology

[0003] However, at present, most of the calculations of the flooding process of barrier dams use the homogeneous earth dam failure simulation method, or use it with slight modifications on the basis of the homogeneous earth dam failure simulation method, and the calculation process does not take into account Due to the strong heterogeneity of the material of the barrier dam and the coupling mechanism of water and soil at the breach of the barrier dam, it is difficult for the simulation results to truly reproduce the process of the flooding of the barrier dam.

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