Internal deformation monitoring method and system for faced rock-fill dam

Abstract

The invention discloses an internal deformation monitoring method and system for a faced rock-fill dam. The internal deformation monitoring method comprises the steps that a flexible pressure-resisting pipeline is buried in the to-be-monitored dam in advance, and a monitoring device is put; the monitoring device is controlled to move back and forth along the central axis of the flexible pressure-resisting pipeline, three-dimensional curve measuring is conducted, and measuring data are sent to a processing terminal; and the processing terminal calculates three-dimensional curves, the three-dimensional curves at different periods are registered and compared, the corresponding relation of the flexible pressure-resisting pipeline at the different periods and the same measuring point is obtained, and the horizontal displacement, the vertical settlement and the face plate deflection are calculated. Compared with a traditional point-type measuring instrument burying method, only the monitoring device needs to be put during measuring, and the problem of maintaining for the buried measuring instrument in the prior art is avoided; and the cost is saved, the horizontal displacement, the vertical settlement and the face plate deflection of the faced rock-fill dam can be monitored simultaneously, and the monitoring efficiency and the monitoring precision are improved.

Description

technical field [0001] The invention relates to the technical field of dam safety monitoring and measurement, in particular to a method and system for monitoring internal deformation of a face rockfill dam. Background technique [0002] The face rockfill dam is an important type of dam. Face deflection, vertical settlement and horizontal displacement inside the dam body are important safety indicators that reflect the deformation of face rockfill dams. When these safety indicators exceed a certain threshold, the safety of the dam will be affected, so precise monitoring of these safety indicators is required. [0003] However, in the prior art, different measuring instruments need to be installed for the monitoring of the above safety indicators, and the setting of the measuring instruments all adopts a point-type burying method, and once the measuring instruments are installed and buried, they cannot be repaired, and they are easily damaged. , the survival rate of the inst...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a monitoring method and monitoring system for the internal deformation of a face rockfill dam in view of the above-mentioned defects of the prior art, aiming at solving the problem that the safety indicators cannot be uniformly measured in the prior art, and the existing Measuring instruments in technology cannot be repaired, affecting monitoring and other issues

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