Coupling rolling wheel vibration dam material compaction quality real-time detection device and method

Abstract

The invention relates to the field of dam construction quality control, in particular to a coupling rolling wheel vibration dam material compaction quality real-time detection device. The problem thatrepresentation compaction quality errors are caused since the vibration frequency f of a rolling machine is changed is avoided, the earth and rockfill dam or rolling concrete dam compaction quality is detected in real time, and a powerful guarantee is provided for ensuring dam construction quality. The coupling rolling wheel vibration dam material compaction quality real-time detection device iscomposed of a rolling vibration acceleration sensor, a GNSS positioning module, a vehicle-mounted integrated controller module, a wireless communication module and a rolling machine power module. Therolling vibration acceleration sensor is installed on the portion, not rotated along with a vibration wheel, on the vibration wheel of the rolling machine. When dam materials are vibrated and rolled,vibration acceleration time domain analog signals in the vertical direction of the rolling wheel are collected in real time and converted into time domain digital signals, and the acceleration time domain analog signals and corresponding sampling time in one sampling period are transmitted into the vehicle-mounted integrated controller module through an interface. The coupling rolling wheel vibration dam material compaction quality real-time detection device is mainly applied to construction quality control occasions.

Description

technical field [0001] The invention relates to the field of dam construction quality control, in particular to a real-time detection device and a detection method for the compaction quality of earth-rock dam materials or roller-compacted concrete dam materials in the vibration rolling process. Background technique [0002] One of the important reasons why some domestic RCC dams have serious seepage damage, dam body cracking and other safety accidents and RCC dams have poor interlayer bonding is the poor compaction effect of dam materials. In recent years, the development and application of real-time monitoring technology for dam compaction quality [1-3] , providing an advanced technical approach for the quality of dam construction. [0003] At present, there is a kind of index in the real-time detection of dam material compaction quality at home and abroad, which analyzes the compaction quality of dam material by analyzing the vibration behavior of the roller, that is, the...

AI Technical Summary

Problems solved by technology

Therefore, if only the acceleration frequency domain analysis index is considered, it cannot truly reflect the compaction quality of the dam material.

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