Slight shock monitoring system and method of double-curvature arch dam

Abstract

The invention discloses a slight shock monitoring system and method of a double-curvature arch dam. The system comprises a slight shock sensing device, at least one signal collecting substation and a data processing terminal; the slight shock sensing device monitors slight shock signals of different areas of the double-curvature arc dam in real time in the water storage process of the double-curvature arch dam, and sends the slight shock signals to the signal collecting substation; the signal collecting substation carries out analog-to-digital conversion on the slight shock signals, stores the slight shock signals, and sends the converted signals to the data processing terminal; the data processing terminal analyzes the converted signals to obtain slight shock evolution data of the different areas of the double-curvature arc dam. A slight shock monitoring technology is applied to monitoring for the concrete double-curvature arch dam in water conservancy and hydropower, dangerous areas of the dam body of the double-curvature arc dam in the water storage period can be deduced according to an analysis result of slight shock monitoring, stable monitoring in the storage and operation period of the double-curvature arc dam is accumulated and completed, and the system and method have sustainable economical and social benefits.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower, in particular to a microseismic monitoring system and method for a hyperbolic arch dam. Background technique [0002] With the rapid development of my country's water conservancy and hydropower industry, ordinary stone dams and low arch dams can no longer meet the demand for power generation. The construction of high arch dams has become the development trend of the water conservancy and hydropower industry today, and has been widely used in construction in countries all over the world. Among them, the Hoover Arch Dam with a height of 221.4m was built in the Colorado River Basin in the United States in 1937. The high arch dam can not only resist water and sand pressure and other loads, but also the head difference generated by its higher dam body greatly increases the power generation capacity of the power station, making the limited water resources fully utilized. Once ...

AI Technical Summary

Problems solved by technology

However, currently widely used measurement technologies such as GPS, thermometers, multi-point displacement meters, and convergent meters use apparent information such as displacement and deformation as monitoring objects, but they are often helpless for possible micro-cracks that may exist inside the rock mass of the dam.

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