Flood-control ability of the Three Gorges Reservoir and upstream cascade reservoirs during catastrophic flooding

Zhang, Shanghong; Jing, Zhu; An, Wenjie; Zhang, RongQi; Yi, Yujun

doi:10.1360/sst-2020-0479

Cited by 7 publications

(1 citation statement)

References 10 publications

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“…The Three Gorges Project is located in Sanduoping Town, Yichang, Hubei province. It is the largest water conservation hub project in history [1]. In addition to the power generation, the dam is also beneficial to the floods control, shipping, and aquaculture.…”

Section: Introductionmentioning

confidence: 99%

The Negative Impact of the Three Gorges Dam on Its Area and the Middle and Lower Reaches of the Yangtze River after Its Construction

Zhang

2023

AEMPS

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The Three Gorges Dam (TGD) is one of the largest construction projects all over the world. The construction of TGD causes significant and far-reaching consequences on the Yangtze River basin (YTR basin). It has brought numerous benefits, particularly with regard to the flood control, the development of hydroelectric power, the shipping industry, and tourism. Yet, it has also resulted in environmental destruction and geological catastrophes. This research investigates the detrimental effects of the TGD on the ecological environment as well as geological disasters through a review of relevant literatures. In general, the positive aspects of the TGD far outweigh its drawbacks, particularly as a consequence of the establishment of monitoring stations and the restoration of the ecologically degraded areas.

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Section: Introductionmentioning

confidence: 99%

The Negative Impact of the Three Gorges Dam on Its Area and the Middle and Lower Reaches of the Yangtze River after Its Construction

Zhang

2023

AEMPS

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Study on the Impact of Flood Season Operating Water Level on Flood Control of the Three Gorges Reservoir

Zhai,

Jiang,

et al. 2024

Lecture Notes in Civil Engineering

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Climate change has resulted in an increase in extreme weather events, with a sharp rise in droughts and floods. To establish a long-term mechanism for ensuring the safe operation of the Three Gorges Project, it is imperative to utilize hydrodynamic methods to analyze the water level operation mode during the flood season. This is crucial to enhancing the flood control safety and maximizing the overall benefits of this project. Therefore, this study obtained four different frequency design flood processes for each year by utilizing data from typical years. And the influence of different starting water level and discharge flows on the high water level and excess flood volume of flood regulation were revealed under the existing scheduling protocols and a one-dimensional hydrodynamic model. The results indicated that the water level operation modes of floods from different typical years were significantly different under the same scheduling rules, and when faced with the extreme flood conditions, discharge flow is a primary determinant of reservoir safety. Furthermore, the current scheduling scheme for the Three Gorges Reservoir has an extra safety margin. As a result, even without forecasting inflows, elevating the operating water level to 155 m during the flood season effectively mitigates risks from floods with a return period of 100 years or less, while maintaining risk control over floods with 1,000-year or 10,000-year return periods.

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Refined Scheduling Based on Dynamic Capacity Model for Short-term Hydropower Generation

Zhang

Zhang²,

Wen³

et al. 2022

Water Resour Manage

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Flood-control ability of the Three Gorges Reservoir and upstream cascade reservoirs during catastrophic flooding

Cited by 7 publications

References 10 publications

The Negative Impact of the Three Gorges Dam on Its Area and the Middle and Lower Reaches of the Yangtze River after Its Construction

The Negative Impact of the Three Gorges Dam on Its Area and the Middle and Lower Reaches of the Yangtze River after Its Construction

Study on the Impact of Flood Season Operating Water Level on Flood Control of the Three Gorges Reservoir

Refined Scheduling Based on Dynamic Capacity Model for Short-term Hydropower Generation

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