https://scholars.lib.ntu.edu.tw/handle/123456789/598000
標題: | Method of estimating the effective zone induced by rapid impact compaction | 作者: | Cheng S.-H Chen S.-S Ge L. YU-NING GE |
公開日期: | 2021 | 卷: | 11 | 期: | 1 | 來源出版物: | Scientific Reports | 摘要: | This paper proposes a method for estimating the effective zone, including effective depth and effective range of compaction degree, from rapid impact compaction (RIC) on sand layer whose fines content is less than 10%. The proposed method utilizes a string of microelectromechanical system accelerometers to monitor the acceleration at various depths and propagation distances during compaction. To interpret and extract useful information from monitored data, peak-over-threshold (POT) processing and normal distribution function were used to analyze the recorded acceleration. The mean and standard deviation of the threshold peak acceleration were used to evaluate the effective depth and the effective range of compaction degree during RIC compaction. Moreover, spatial contours were used to determine the correlation of the threshold peak acceleration against depth and propagation distance from the RIC impact point. These contours help indicating the distribution of the effect zone after compaction. Lastly, a proposed method is suggested for frequent use in trial tests to quickly determine RIC’s required depth and impact spacing. ? 2021, The Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115201930&doi=10.1038%2fs41598-021-97912-1&partnerID=40&md5=2cba1180d89b9c5c58afcddd075b907c https://scholars.lib.ntu.edu.tw/handle/123456789/598000 |
ISSN: | 20452322 | DOI: | 10.1038/s41598-021-97912-1 |
顯示於: | 土木工程學系 |
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