IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT : Physical Model Research on Local Scour near Shallow-embedded Tunnel
Physical Model Research on Local Scour near Shallow-embedded Tunnel
Author : Shiyou Gao, Zishen Chen, Xiangyang Tu and Guozhen Liu
Reasonable embedment depth and covering layer protection measure are key targets of immersed tunnel engineering design in consideration of join between hard tunnel and loose sediment where river bed scour may cause safety problems, then physical model test may be regarded as an effective technical mean to demonstrate rationality.This paper will present a physical test on local scour near Dongping waterway immersed tunnel located in the Pearl River Delta. Firstly empirical formula and flume experiment will be applied to selecte reasonable model sand and material to simulate prototype sand and covering layer.Based on physical model validation using historical hydrologic sediment and topography data, scour model experiment will be carried out under extremely flood condition. The results can be used to reasonable basis for river-crossing tunnel design, such as reasonable embedded depth and covering layer protection measures.
File Size : 1,034,772 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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