Field Measurements and Modelling of Vessel-Generated Waves and Caused Bank Erosion-A Case Study at the Sabine-Neches Waterway, Texas, USA

被引:2
|
作者
Qian, Qin [1 ]
Su, Lin [2 ]
Zaloom, Victor [1 ]
Jao, Mien [1 ]
Wu, Xing [1 ]
Wang, Keh-Han [2 ]
机构
[1] Lamar Univ, Dept Civil & Environm Engn, Beaumont, TX 77710 USA
[2] Univ Houston, Dept Civil & Environm Engn, Houston, TX 77204 USA
基金
美国国家科学基金会;
关键词
vessel-induced waves; field measurements; empirical wave height model; shear stress and soil strength; bank stability and toe erosion model (BSTEM); bank and toe protection; INCISED STREAMS; RIVER; STABILITY; EVOLUTION; FORMULATION; CHANNEL;
D O I
10.3390/w15010035
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The Sabine-Neches Waterway (SNWW) is home to the largest commercial port of the United States military and of the refineries that produce 60% of the nation's commercial jet fuel. The deposited sediments from bank erosion due to wake wash result in frequent dredging to keep the waterway operational. This study investigates vessel-generated waves and their impacts on bank erosion. Surface wave data at Golden Pass and the City of Port Arthur Park dock were measured using a 1 MHz Aquadopp Profiler. Bank properties such as soil strengths were measured and soil samples were collected. Acceptable predictive models for estimating the maximum wave heights caused by vessels sailing through the SNWW were developed and validated with recorded data. Vessel-generated waves are found to produce enough shear forces to mobilize bed sediments and cause bank erosion. The bed erosion rate increases with an increase in wave height or a decrease in water depth. Bank and bank toe erosion occurs at both monitoring locations. Bank stability and toe erosion model (BSTEM) results suggest that potential bank protection options are large woody debris and riprap at Port Arthur. However, other stronger stabilization methods are required at Golden Pass.
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页数:25
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