An integrated monitoring method for internal and external deformation of rockfill dams

Abstract

The invention discloses an integrated monitoring method for internal and external deformation of a rockfill dam. The monitoring method includes the steps of: collecting and obtaining internal deformation data of the rockfill dam in a pressure-resistant flexible pipeline based on a pipeline measurement robot; based on a Beidou / GNSS monitoring system, The external deformation data of the rockfill dam is collected at the monitoring point; the internal deformation monitoring index and the external deformation monitoring index are obtained after post-processing, and the overall deformation curve is obtained by combining the internal and external deformation monitoring index analysis, and the early warning is given according to the curve analysis and the set threshold . The internal deformation data of the rockfill dam and the long-term real-time observation data of the external deformation monitoring of the dam adopt a unified geographic reference coordinate system to realize the integrated monitoring of the internal and external deformation of the rockfill dam. At the same time, with the help of the 3D GIS platform, the The internal and external deformation monitoring results and the surrounding terrain and landform models are intuitively visualized and multi-period dynamic deduction provides data support for early warning and forecasting.

Description

technical field [0001] The invention relates to the technical field of engineering measurement, in particular to an integrated monitoring method for internal and external deformation of a rockfill dam. Background technique [0002] Face rockfill dam is an important type of dam, because of its safety, economy and good adaptability, it has become the preferred dam type for hydropower development in my country. In recent years, my country's rockfill dam technology has developed rapidly, and a number of 200-meter-high concrete rockfill dams have been built. At present, the dam industry is launching research on 300-meter-high concrete face rockfill dam technology. The face rockfill dam is composed of two parts: the anti-seepage system composed of face plate-toe plate-joint sealing and the rockfill (or gravel) dam body. Both the face plate and the rockfill body will deform to a certain extent due to their own gravity, water storage pressure and other reasons during the constructi...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an integrated monitoring method for internal and external deformation of rockfill dams in view of the above-mentioned defects of the prior art, aiming at solving the difficulty in monitoring the interior of the dam in the prior art and the inability to realize the internal deformation of the dam. , external integrated monitoring problems

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