Erosion resistance and scouring depth of fine-grained seabed of the Huanghe River estuary, China

doi:10.1007/s10064-017-1148-7

	Erosion resistance and scouring depth of fine-grained seabed of the Huanghe River estuary, China
	Cao, Chenglin 1; Sun, Yongfu 1; Sun, Huifeng 1; Song, Yupeng 2
	2018-08
关键词	Critical erosion stress Erosion rate Scouring depth Fine-grained sediment
卷号	77
期号	3
DOI	10.1007/s10064-017-1148-7
页码	897-910
英文摘要	Numerical calculation is an effective method to predict the scouring depth of fine-grained sediments. However, as many soil properties affect sediment erodibility, numerically simulated parameters, such as critical erosion stress tau (c) , may result in wrong prediction. To understand the erosion resistance and scouring depth of fine-grained seabed in the Huanghe (Yellow) River estuary, China, the authors calculated the critical erosion stress tau (c) of the bottom sediments using regression equations that correlated physical properties to critical shear stress of silty fine-grained sediment of the research area and predicted the scouring depth of the study area using different available formulae. The results indicate that tau (c) ranges from 0.48 to 1.74 Pa. Comparisons show that the results calculated from the empirical formula proposed by Kandiah are close to the measured data, and choosing the right parameters of sediment in the formula decides the accuracy of the scouring depth calculation. With the Kandiah tau (c) value, the seabed scouring amplitudes in wave action periods of 5, 10, 25 and 50 years were simulated. The calculated results of scouring depth are between 0 and 0.23 m and the corresponding scouring center was predicted to be in the region of depths between 5 and 9 m. Meanwhile, the scouring center was found to be highly correlated with wave breaking and sediment properties.
会议录	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
会议录出版者	SPRINGER HEIDELBERG
会议录出版地	TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
语种	英语
资助项目	Quantitative Researches on Erosion Resistance Strength of Fine-Grained Sediment and Scouring Depth under the National Science Foundation of Shandong Province[ZR2014DP002]
WOS研究方向	Engineering ; Geology
WOS记录号	WOS:000441525900002
WOS关键词	CRITICAL SHEAR-STRESS ; INTERTIDAL SEDIMENTS ; COHESIVE SEDIMENTS ; YELLOW-RIVER ; DEPOSITION ; STRENGTH ; RATES ; WAVE
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/27565]
专题	自然资源部第一海洋研究所
通讯作者	Cao, Chenglin
作者单位	1.First Inst Oceanog, SOA, Qingdao 266061, Peoples R China 2.Ocean Univ China, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Cao, Chenglin,Sun, Yongfu,Sun, Huifeng,et al. Erosion resistance and scouring depth of fine-grained seabed of the Huanghe River estuary, China[C]. 见:.