Intelligent frequency and amplitude modulation rolling method for vibratory roller

Abstract

The invention discloses an intelligent frequency and amplitude modulation rolling method for a vibratory roller, which comprises the following steps, step 1: obtaining the optimal vibration compactionparameters of a roadbed packing room through laboratory tests; step 2: determining the vibration response characteristics of a soil system of the vibratory roller; step 3: collecting the running state of vibration wheels in the compaction process through tests and analyzing the data; step 4: according to the criterion of a vibration compaction mode, determining the working parameters of the roller; step 5: adjusting the vibration parameters of the roller to the matching optimal working parameters by the roller with an electrodeless variable frequency and amplitude function and uploading the rolling data to the intelligent compaction control platform for further deep learning and feedback. Based on the vibration response characteristics of the roller and the judgment criterion of the optimal working parameters, the intelligent frequency and amplitude modulation rolling method for the vibratory roller automatically adjusts the vibration parameters of the roller to the matching optimal working parameters according to the compaction state of the roadbed filling, and develops a prototype to achieve the intelligence and high efficiency rolling of the roadbed filling.

Description

technical field [0001] The invention relates to the technical field of high-speed railway embankment construction, and more specifically relates to an intelligent frequency-modulated-amplitude-modulated rolling method of a vibratory road roller. Background technique [0002] In the construction of railway engineering and highway engineering, a large amount of earth or stone filling is required. Since the filling construction of earth and stone accounts for a large proportion, the construction method and quality of earth and rock filling directly affect the quality of the corresponding project. and cost. Especially for high-speed railways, the stability of the subgrade is required to be strong, so the requirements for construction methods and quality are stricter. [0003] At present, the fillers used in roadbed filling construction include: Group A - high-quality fillers, including hard rocks, boulder soils with good gradation and fine-grained soil content less than 15%, pe...

AI Technical Summary

Problems solved by technology

Using the conventional "point" sampling detection method, it cannot record and check the on-site compaction situation in real time, and the work efficiency is low

[0009] At present, in the process of compacting high-speed railway subgrades, most of the processes still require manual intervention, and intelligent automatic operation cannot be realized. The operator drives and controls the road roller to carry out subgrade rolling, and the subgrade rolling is carried out according to a fixed mode. Repeated rolling, but in actual construction, due to different fillers, the rolling parameters of the subgrade need to be adjusted adaptively; and in actual construction, the corresponding optimal rolling parameters for different rolling stages of fillers are also different, but, At present, there is no road roller and rolling method that can perform intelligent frequency and amplitude modulation for different fillers and different stages of fillers.

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