A dynamic monitoring system and monitoring method for the connection structure of a concrete dam and an earth-rock dam

Abstract

The invention relates to a dynamic monitoring system and a monitoring method for the connection structure of a concrete dam and an earth-rock dam, belonging to the technical field of hydropower engineering. According to the characteristics of the connection structure between the concrete dam and the earth-rock dam, the present invention designs a set of dynamic monitoring system. The system uses advanced fiber grating instrument and fiber grating demodulator to monitor the key parts of the connection structure. The monitoring items include the deformation of the connection structure , osmotic pressure and stress; the present invention carries out all-round and whole-process design from monitoring items, monitoring points and network layout, monitoring instrument type selection and monitoring means to monitoring results analysis, and solves the connection structure monitoring of hydropower station concrete dams and earth-rock dams problems and provide experience for similar projects. The invention is suitable for the dynamic monitoring of the connecting structure between the earth-rock building and the rigid building such as concrete, has a wide range of application, has been used in large-scale hydropower projects, and has remarkable economic benefits.

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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