a near-bed study on the affects of spur dikes on river systems ramsey coronado pi: guohong duan,...
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![Page 1: A Near-Bed Study on the Affects of Spur Dikes on River Systems Ramsey Coronado PI: Guohong Duan, Department of Civil Engineering Mentor: Mary Yaeger University](https://reader035.vdocument.in/reader035/viewer/2022062519/5697bfe81a28abf838cb5faa/html5/thumbnails/1.jpg)
A Near-Bed Study on the Affects of Spur
Dikes on River SystemsRamsey Coronado
PI: Guohong Duan, Department of Civil Engineering
Mentor: Mary YaegerUniversity of Arizona
Arizona Space Grant ConsortiumStatewide Symposium
![Page 2: A Near-Bed Study on the Affects of Spur Dikes on River Systems Ramsey Coronado PI: Guohong Duan, Department of Civil Engineering Mentor: Mary Yaeger University](https://reader035.vdocument.in/reader035/viewer/2022062519/5697bfe81a28abf838cb5faa/html5/thumbnails/2.jpg)
Background: Spur Dikes
Spur Dikes are environmental structures put in place to prevent bank erosion and redirect water flow
Historically, they have been used to “train” a water system
Currently used on the Mississippi and along other water systems
Picture provided by Geograph.com
![Page 3: A Near-Bed Study on the Affects of Spur Dikes on River Systems Ramsey Coronado PI: Guohong Duan, Department of Civil Engineering Mentor: Mary Yaeger University](https://reader035.vdocument.in/reader035/viewer/2022062519/5697bfe81a28abf838cb5faa/html5/thumbnails/3.jpg)
Methodology Techniques for evaluating the impacts of spur dikes
on a fluvial system:
Flume: Structure that emulates an open channel water
flow
Grid System: Systematic approach for evaluating points along
a grid
Level Sensor: Sends a signal to the surface of water and
registers the height of water flow relative to base
Flow Meter Uses a triangulation sensor to determine flow in
the x-direction, y-direction, and z-direction
Picture provided by Omega.com
![Page 4: A Near-Bed Study on the Affects of Spur Dikes on River Systems Ramsey Coronado PI: Guohong Duan, Department of Civil Engineering Mentor: Mary Yaeger University](https://reader035.vdocument.in/reader035/viewer/2022062519/5697bfe81a28abf838cb5faa/html5/thumbnails/4.jpg)
Experimentation
Calibration of Devices The initial part of experimentation
involves calibration of the sensor to the flume. Electrical signal related to physical parameters.
Collecting Data Base study conducted to examine
conditions affected by the dikes on the river system at different water flows.
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Results
Increased flow along area where spur dikes where present
Increased water level
One of the hydraulic effects was turbulence
Picture provided by Geograph.com
![Page 6: A Near-Bed Study on the Affects of Spur Dikes on River Systems Ramsey Coronado PI: Guohong Duan, Department of Civil Engineering Mentor: Mary Yaeger University](https://reader035.vdocument.in/reader035/viewer/2022062519/5697bfe81a28abf838cb5faa/html5/thumbnails/6.jpg)
Future of Research
Sediment Experiments to evaluate how sediment flows along a system with spur dikes
Continued development in structures to maximize efficiency in preventing bank erosion from flow
Improving effectiveness of structures in rivers that have dams
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THANK YOU
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