Horizontal Normal Force on Buried Rigid Pipelines in Fluctuant Liquefied Silty Soil

作     者：XU Xingbei XU Guohui REN Yupeng LIU Zhiqin CHEN Changyun 

作者机构：Key Laboratory of Marine Environment and Ecology Ministry of Education Ocean University of China Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering Ocean University of China First Institute of Oceanography Ministry of Natural Resources 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2019年第18卷第1期

页      面：1-8页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 0908[农学-水产] 0707[理学-海洋科学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 

基　　金：funded by the National Natural Science Foundation of China (No. 41576039) 

主　　题：wave flume experiment fluctuant liquefied soil buried pipeline normal force 

摘      要：The submarine pipelines that are buried in the Yellow River subaqueous delta can be subject to fluctuant local-liquefied soil caused by storm wave action, possibly causing pipeline damage. An experimental investigation was carried out in a wave flume to study the horizontal normal force on buried rigid pipelines in fluctuant liquefied soil. In this experiment, the soil bed was made of silt from the Yellow River Delta, whereas a steel pipe served as pipeline. Under the experimental conditions, the normal force range on the pipeline in fluctuant liquefied soil was several times higher than that in stable soil, specifically on the side of the pipeline exposed to the wave direction. The resultant force of the horizontal normal forces on the buried pipeline grew by about one order of magnitude after soil liquefaction.