Vibration compaction characteristics of rock filling embankment

Abstract

The dynamic model experiment of the rock filling embankment was carried out to investigate the vibration compaction mechanism. The rock filling materials were compacted by the plate-vibrated compactor, and the characteristics of the rock filling materials, such as settlement, pressure change and response waveform, were measured by the dynamic earth pressure gauge and accelerometer. Moreover, a new method for detecting the compactness of the rock filling embankment was proposed based on the maximum dry density and modulus of deformation. The results show that the process of vibration compaction includes compact, elastic deformation and loose stages, and the vibratory pressure transfers to the surroundings from the vibration center in non-linear rule. Furthermore, the test results obtained by the present method are basically in agreement with those obtained by the traditional method, and the maximum relative error between them is about 0.5%.

Analyzing the influencing factors of unplanned readmission within one year after cadaveric renal transplantation

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Construction Technology of Large Thickness Vibratory Compaction of Hard Rock Embankment

“…According to the research of construction methods of rock-filled embankment in recent years [1], the compaction methods of rock-filled embankment generally include impact roller compaction [2][3][4][5], dynamic compaction [6][7] and conventional vibration compaction [8], in which impact compaction and dynamic compaction are mainly used for supplementary compaction after vibration compaction [4] [6]. For the vibration compaction of rock-filled embankments, it is common for construction companies to use ordinary heavy-duty vibratory roller [2][3][4][5][6] whose weight is between 15t and 20t.…”