Experimental studies on channel evolution due to dam removal in Taiwan

Y. C. Cheng; H. W. Wang; W. C. Kuo; C. Y. Lin

Experimental studies on channel evolution due to dam removal in Taiwan

Y. C. Cheng, H. W. Wang, W. C. Kuo, C. Y. Lin

Department of Hydraulic and Ocean Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

This study focused on No. 1 Check Dam on Chijiawan creek in Taichung County, Taiwan, which was removed in May 2011 due to habitat restoration for landlocked salmon. We conducted scaled experiments on scenarios of different flood conditions, and removal sizes and shapes. We compared our experimental results of riverbed elevation profiles with the analytical solutions derived from the diffusion equation. Besides, we conducted the long profile survey after the dam was removed to compare with the experiment results. The findings indicated the experimental results fit better with the theoretical solution near the dam site when the simulated discharge was larger. The comparison between experimental and field longitudinal profiles suggest the experimental predictions provided solid information but also highlight discrepancies at some places.

Original language	English
Title of host publication	Advances in River Sediment Research
Publisher	CRC Press
Pages	160
Number of pages	1
ISBN (Electronic)	9781315856582
ISBN (Print)	9781138000629
Publication status	Published - 2013 Aug 15

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "Experimental studies on channel evolution due to dam removal in Taiwan",

abstract = "This study focused on No. 1 Check Dam on Chijiawan creek in Taichung County, Taiwan, which was removed in May 2011 due to habitat restoration for landlocked salmon. We conducted scaled experiments on scenarios of different flood conditions, and removal sizes and shapes. We compared our experimental results of riverbed elevation profiles with the analytical solutions derived from the diffusion equation. Besides, we conducted the long profile survey after the dam was removed to compare with the experiment results. The findings indicated the experimental results fit better with the theoretical solution near the dam site when the simulated discharge was larger. The comparison between experimental and field longitudinal profiles suggest the experimental predictions provided solid information but also highlight discrepancies at some places.",

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N2 - This study focused on No. 1 Check Dam on Chijiawan creek in Taichung County, Taiwan, which was removed in May 2011 due to habitat restoration for landlocked salmon. We conducted scaled experiments on scenarios of different flood conditions, and removal sizes and shapes. We compared our experimental results of riverbed elevation profiles with the analytical solutions derived from the diffusion equation. Besides, we conducted the long profile survey after the dam was removed to compare with the experiment results. The findings indicated the experimental results fit better with the theoretical solution near the dam site when the simulated discharge was larger. The comparison between experimental and field longitudinal profiles suggest the experimental predictions provided solid information but also highlight discrepancies at some places.

AB - This study focused on No. 1 Check Dam on Chijiawan creek in Taichung County, Taiwan, which was removed in May 2011 due to habitat restoration for landlocked salmon. We conducted scaled experiments on scenarios of different flood conditions, and removal sizes and shapes. We compared our experimental results of riverbed elevation profiles with the analytical solutions derived from the diffusion equation. Besides, we conducted the long profile survey after the dam was removed to compare with the experiment results. The findings indicated the experimental results fit better with the theoretical solution near the dam site when the simulated discharge was larger. The comparison between experimental and field longitudinal profiles suggest the experimental predictions provided solid information but also highlight discrepancies at some places.

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BT - Advances in River Sediment Research

PB - CRC Press

ER -

Experimental studies on channel evolution due to dam removal in Taiwan

Abstract

All Science Journal Classification (ASJC) codes

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