Rock-fill dam internal and external deformation integrated monitoring method

Abstract

The invention discloses a rock-fill dam internal and external deformation integrated monitoring method, and the method comprises the steps: collecting rock-fill dam internal deformation data in a compression-resistant flexible pipeline based on a pipeline measurement robot; based on a Beidou / GNSS monitoring system, acquiring rock-fill dam external deformation data at monitoring points; and performing post-processing to obtain an internal deformation monitoring index and an external deformation monitoring index, performing analysis in combination with the internal deformation monitoring index and the external deformation monitoring index to obtain an overall deformation curve, and performing early warning according to curve analysis and a set threshold. The rock-fill dam internal deformation data and dam external deformation monitoring data observed in real time for a long time adopt a unified geographic reference coordinate system to achieve rock-fill dam internal and external deformation integrated monitoring, and meanwhile, by means of a three-dimensional GIS platform, intuitive visual display and multi-period dynamic deduction can be carried out on the internal and external deformation monitoring result of the rock-fill dam and the surrounding landform model, and data support is provided 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] The face rockfill dam is an important type of dam, and it has become the preferred dam type for hydropower development in my country due to its safety, economy and good adaptability. In recent years, the technology of rockfill dams in my country has developed rapidly. A batch of 200-meter-level high-face rockfill dams have been built. At present, the dam industry is launching research on the technology of 300-meter-level face rockfill dams. The concrete face rockfill dam is composed of two parts: an anti-seepage system composed of face plate, plinth-joint, and a rockfill (or gravel) dam body. The faceplates and rockfill bodies will undergo certain degree of deformation due to their own gravity and water storage pressure during the construction and ope...

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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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