A monitoring method and monitoring system for internal deformation of a face rockfill dam

Abstract

Disclosed by the present invention are a method and system for monitoring the internal deformation of a faced rock-fill dam, the method comprising: burying a flexible pressure-resisting pipeline in a dam to be monitored in advance, and placing a monitoring device; controlling the monitoring device to move back and forth along a central axis of the flexible pressure-resisting pipeline, conducting a three-dimensional curve measurement, and sending measurement data to a processing terminal; and the processing terminal calculating three-dimensional curves, registering and comparing the three-dimensional curves at different periods so as to obtain correspondences of the flexible pressure-resisting pipeline at the same measuring point during the different periods, and calculating horizontal displacement, vertical cave-in and face deflection. Compared to a traditional method of burying a point-type measurement instrument, only the monitoring device needs to be placed during measurement according to the present invention, which avoids the problem of maintenance for already-buried measurement instruments in existing technology. Costs are reduced, and the present invention may simultaneously monitor the horizontal displacement, vertical cave-in and face deflection of the faced rock-fill dam, while the monitoring efficiency and 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 a monitoring system for internal deformation monitoring of a face rockfill dam. Background technique [0002] Face rockfill dam is an important type of dam. The deflection of the face slab and the vertical settlement and horizontal displacement inside the dam are important safety indicators for the deformation of the face rockfill dam. When these safety indicators exceed a certain threshold, the safety of the dam will be affected. Therefore, these safety indicators need to be monitored precisely. [0003] However, in the prior art, different measuring instruments are required to monitor the above safety indicators, and the setting of measuring instruments is all point-buried. Once the measuring instruments are installed and buried, they cannot be repaired, and they are easily damaged. , The instrument survival rate is low, which affects the i...

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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