The method of detecting the compaction quality of rockfill dam by intelligent and dynamic control system of compaction quality of rockfill dam

Abstract

The invention provides an intelligent and dynamic control system for compaction quality of a rockfill dam. The system comprises a data acquisition unit, a data receiving and sending device and a data analysis device, wherein the data acquisition unit is mounted on a rack of the inner side of the vibrating drums of a vibration roller; the data receiving and sending device is mounted inside an observation room; the data analysis device is used for performing remote quality control. A method for controlling the compaction quality of the rockfill dam by adopting the system comprises the following steps: I, obtaining CMV (common mode voltage) value consistent with design requirements, which is corresponding to dry density Rho, through a test; II, during the process of construction on the scene, acquiring acceleration data of each vibrating roller; III, performing FFT (Fast Fourier Transform) after data integration and digital filtering are performed on the acceleration data so as to obtain fundamental wave data and second harmonic data; IIII, calculating real-time CCV through the formula CMV=C*(A2 Omega / A Omega); V, comparing the real-time CMV with the CMV consistent with the design requirements, which is corresponding to dry density Rho, thereby achieving the intelligent and dynamic control to compaction quality of the rockfill dam. The invention not only can guarantee the construction quality, bus also can accelerate the construction progress.

Description

technical field [0001] The invention relates to the field of rolling construction of rockfill dams in the construction of hydropower projects, in particular to a method for detecting the compaction quality of rockfill dams using an intelligent and dynamic control system for the compaction quality of rockfill dams. Background technique [0002] With the continuous development of national economic construction, my country's rockfill dams have developed rapidly. Concrete face rockfill dams, soil core rockfill dams and asphalt concrete core rockfill dams have become the three main dam types of modern rockfill dams. [0003] At present, rockfill dams and high dams appear on a large scale. The construction period of this type of dam is short, and the special topography, geology, and dam foundation conditions require high compaction quality, but the existing real-time monitoring methods are lacking, and real-time rapid detection methods are lacking; therefore, it is very necessary ...

AI Technical Summary

Problems solved by technology

[0003] At present, rockfill dams and high dams appear on a large scale. The construction period of this type of dam is short, and the special topography, geology, and dam foundation conditions require high compaction quality, but the existing real-time monitoring methods are lacking, and real-time rapid detection methods are lacking; therefore, it is very necessary Carry out research on real-time and dynamic control system and rapid detection technology for rockfill dam filling

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