A system and method for adjusting ice layer thickness and performing avalanche tests

Abstract

The invention discloses a system and method for adjusting the thickness of the ice layer and performing a collapse test. The system part includes a thermal insulation and airtight laboratory. A concrete water tank with an open top is arranged in the heat preservation and airtight laboratory. The outer wall of the concrete water storage tank is covered Wrapped with a thermal insulation layer, the thermal insulation and airtight laboratory is also equipped with a cooling device for cooling the upper water of the concrete reservoir and a temperature regulating device for regulating the temperature of the lower water of the concrete reservoir; in addition, the invention also discloses Corresponding methods for adjusting the thickness of the ice layer and carrying out the avalanche test; the present invention realizes the adjustment of the thickness of the ice layer and the avalanche test, and simulates the freezing and melting process of the reservoir area in cold regions of my country in the laboratory. Scientific research provides technical support.

Description

Technical field [0001] The present invention relates to the field of water conservative engineering concrete construction, and is specifically referred to as a system and method for adjusting the thickness of the ice layer and the collapse test. Background technique [0002] With the development of the dam technology, my country's water conservancy projects spread throughout the country, and the climate environments affecting different locations across the country have greatly different. For example, in the northwestern cold area, the lowest temperature can reach zero 40 ° C, and often accompanied by windy weather, the water surface of the reservoir area will form a ice cover under low temperature conditions, and under low temperature conditions, the water body begins to frozen, ice The thickness of the layer also increases. Affected by the temperature difference of the day and night, the ice layer itself will change, and the volume deformation of ice is unable to release the vol...

AI Technical Summary

Problems solved by technology

[0008] In the natural environment, the adaptability verification test is difficult to occur in a short period of time in various climatic environments, and the test period is too long, resulting in a lot of time, financial and material resources and manpower consumption; secondly, the natural environment is complex and harsh, and it is difficult to monitor the test comprehensively and intuitively Data, test accuracy and authenticity are difficult to guarantee

[0009] (2) The existing simulated environmental conditions are single

[0010] In order to study the impact of the ice layer formed by the freezing of the water body caused by the low temperature in winter in cold regions on the concrete of the dam, it is necessary to simulate the low temperature environment in extreme climates, which can reach minus 40°C locally; and to observe the changes in the water level of the ice layer At the same time, it is necessary to study the stress of floating ice on hydraulic engineering structures under the influence of wind during the melting period. The existing experimental conditions cannot be satisfied at the same time. It is necessary to find a suitable experimental system for the current research.

[0011] (3) The heating and cooling time is long and the automation level is insufficient

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