Dam burst test composite simulation device and method based on real-time reservoir capacity adjustment

Abstract

The invention provides a dam burst test compound simulation device and method based on real-time reservoir capacity adjustment. The simulation device comprises a water replenishing system, a water inlet system, a test water tank, a water return system, a measuring system and a control system; the water replenishing system comprises an underground water pool and a water replenishing pipe, and the underground water pool is in communication with the water inlet system through the water replenishing pipe; the water inlet system comprises a model reservoir and a water inlet pipe, and the model reservoir is in communication with the test water tank through the water inlet pipe; the water return system comprises a grit chamber and a water return channel; the measurement system comprises a measurement data display and storage terminal, and a flow velocity measurement device, a water level measurement device and a pressure measurement device connected with the data display and storage terminal;and the control system comprises a control terminal, an electromagnetic flowmeter and a water inlet valve. According to the dam burst test compound simulation device and method, the flow of the simulation system is adjusted to meet the similarity of water level changes of the model and the prototype reservoir, so that the similarity of the dam body burst process is ensured, and the limitation ofmodel damming material selection and model site scale is broken through.

Description

technical field [0001] The invention relates to the field of dam failure process test research, in particular to a composite simulation device and method for dam failure tests based on real-time adjustment of storage capacity. Background technique [0002] Flume test is an important research method for dam failure flood disaster. The research shows that the shape and topography of the reservoir (reflected comprehensively as the storage capacity curve) have an important influence on the collapse process. Due to the limitations of the test conditions (such as site, water supply, backwater, etc.), scaling the reservoir terrain strictly according to the geometric scale requires a large test site, and the water supply flow needs to be large, and the flow of the outburst flood is large. The requirements of the system are high, so it is difficult to implement. At the same time, if the reservoir terrain is scaled, the size of the barrier dam will become very small, making it diffi...

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Problems solved by technology

Due to the limitations of the test conditions (such as site, water supply, backwater, etc.), scaling the reservoir terrain strictly according to the geometric scale requires a large test site, and the water supply flow needs to be large, and the flow of the burst flood is large. The system is very de

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