Dynamic monitoring system and monitoring method for connection structure of concrete dam and earth and rockfill dam

Abstract

The invention relates to a dynamic monitoring system and a monitoring method for a connection structure of a concrete dam and an earth and rockfill dam, and belongs to the technical field of hydropower engineering. According to the characteristics of the connection structure of the concrete dam and the earth and rockfill dam, the dynamic monitoring system is designed, the system employs an advanced fiber grating apparatus and a fiber grating demodulation device to monitor key positions of the connection structure, and monitoring projects comprise deformation, osmotic pressure, and stress of the connection structure. According to the dynamic monitoring system and the monitoring method, omnibearing and the overall process of design is performed from the analyses of the monitoring projects, monitoring points and network layout, type selection of monitoring apparatuses, monitoring means, and monitoring results, the difficulty of the monitoring of the connection structure of the concrete dam and the earth and rockfill dam of a hydropower station is solved, and experience is provided for similar projects. The dynamic monitoring system and the monitoring method are applicable to dynamic monitoring of the connection structure between earth and rockfill buildings and rigid buildings such as concrete etc., the application range is wide, the dynamic monitoring system and the monitoring method are applied in large-scale hydropower projects, and the economic benefit is great.

Description

technical field [0001] The invention belongs to the technical field of hydropower engineering, and in particular relates to a system and method for dynamic monitoring of a connection structure between a concrete dam and an earth-rock dam in a hydropower project, and is suitable for dynamic monitoring of a connection structure between an earth-rock building and a rigid building such as concrete. Background technique [0002] The connection between rigid structures such as earth-rock dams and concrete dams is one of the key technical issues in the field of hydropower engineering technology. Research on the connection structure technology of earth-rock dams and concrete dams in foreign countries was earlier, and it was first used in engineering in the 1930s. Foreign countries such as Japan and Australia have already had connection structure engineering applications. Most of the connection structures in Japan are below 40m. The height of the completed project basically does not ...

AI Technical Summary

Problems solved by technology

Although the construction level of the connection structure between earth-rock dams and concrete dams has become mature, there are few systematic monitoring methods and technical researches on the connection structures between earth-rock dams and concrete dams. Some monitoring technologies can no longer meet the needs of the development of connection structure technology, and it is necessary to study a connection structure monitoring system and method suitable for concrete dams and earth-rock dams

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