Simulation device of instant unstable burst of dam under extreme load condition and operation method

Abstract

The invention discloses a simulation device of instant unstable burst of a dam under an extreme load condition and an operation method, relates to the technical field of dam burst, and is a test device and a method suitable for researching instant burst of the dam caused by instability of a dam shoulder. The simulation device of instant unstable burst of the dam under extreme load condition comprises a leakage preventing unit, a fixed platform, the dam, a water tank and an unstable unit. The dam consists of multiple baffle plates, and is kept in a stable state under combined action of the fixed platform, the water tank and related parts in the leakage preventing unit and the unstable unit. The instability of the dam shoulder is realized through fusing of a copper wire by heating of a resistance wire in the unstable unit; and the instant burst test effect of the dam is realized through unbalanced stress of the dam and collapse and water rushing destroy of the baffle plates caused by unstable dam shoulder. The simulation device provides the test theory and method for research on instant dam burst mechanism and instant burst water current moving rules caused by unstable dam shoulder.

Description

technical field [0001] The invention relates to the technical field of dam collapse, in particular to a simulation device and an operation method for instantaneous instability and collapse of a dam body under extreme load conditions. Background technique [0002] With the development of water conservancy projects, the number of reservoir dams is increasing. According to the "First National Water Conservancy Census Bulletin" released in 2013, there are 98,002 reservoirs in the country, with a total storage capacity of 932.312 billion m 3 . Reservoir dams provide an important guarantee for regional flood control safety, irrigation, and water supply, and play an extremely important role in promoting the development of human society. They are an important part of my country's flood control engineering system. However, with the passage of time, the reservoir will inevitably experience aging and damage of the dam. Especially in recent years, natural environmental events such as ...

AI Technical Summary

Problems solved by technology

[0003] For the study of the instantaneous collapse of the dam, the previous dam break test device mainly pulls the baffle from the top of the dam body, so that the water flows out from the bottom. The effect of instant collapse, inevitable human interference and errors will eventually lead to large errors in test results and affect the accuracy of the test

Therefore, the simulation devices and test methods for the instantaneous collapse of the dam body, especially the dam abutment instability and the instantaneous collapse of the dam body caused by irresistible extreme loads such as major earthquakes or landslides, need further research

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