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flood control Safety Design Strategies of Riverside Space in Chongqing

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Flood Control Safety Design Strategies of Riverside Space in...

THE ADVERSE IMPACT OF HUMAN ACTIVITIES ON flood control IN THE HUAIHE BASIN

第三届教学管理与课程建设学术会议

作者： Guang-Hua Gao 1 , Yong-Hui Lei 2 , Bei-Bei Zhang 3 , Chang-Bin Cui 4 124 Military Architecture Engineering Department Logistical Engineering University of PLA Chongqing, China 3 Faculty of Architecture and Urban Planning Chongqing University Chongqing, China

With the construction of riverside road in the mountain city, it has been greatly boosted in the development of trade, tourism and culture along the riverside area. However, the new riverside area caused other many problems, such as breaking of the ecological belt, withdrawing of river shore space and the submerging of building in the flooding. This article analyzed the space of riverside road in mountain city Chongqing, discussed the contradiction between flood control construction and the usage of riverside space in mountain city aiming "ecology", "close to water" and "utilization". Then put forward some planning and design strategies for flood control,including strategies of ecological protection, hydrophilic planning strategies and architectural design strategies.

关键词： riverside space of mountain city flood control close to water space ecological protection safety design countermeasure

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International Journal of Sediment Research 1997年第3期 317-324页

作者： Hugen ZhU Associate Prof, Dept. Of Civil Eng., Hefei University of Technology, 230009 Hefei, China Zhaoyin WANG Prof, Dr. International Research and Training Center on Erosion and Sedimentation, P.O. Box 366, Beijing 100044 China Dieter PRINZ Prof.,

The Huaihe Basin covers a total area of about 269,000 sq. *** the end of 1993, there were up to 154.55 million people in this basin. The population density was about 576 people per sq. km. Huge human activities in conjunction with poor resource management and weak flood control ability, have resulted in much adverse impact on flood control. This paper deals with accelerated erosion and sedimentation of reservoirs and lakes, aggradation of river courses in the basin. and concerns the changes of flood characteristics due to human influenCe, which includes the changes of the average coefficient of flood-runoff and the flood unit hydrograph of the basin, as well as rising of flood stages.

关键词： Human activities Soil erosion Sedimentation flood control

The flood control and regulation of Three Gorges Project

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Engineering Sciences 2011年第3期9卷 15-21页

作者： Cai Qihua Changjiang Water Resources Commission Wuhan 430010 China

The important role of Three Gorges Project (TGP) in the flood management of the Yangtze River Basin is *** Optimal Regulation Schemes of the Three Gorge Reservoir is briefly *** flood regulation effect of TGP is *** issues related to reservoir operation for flood regulation are discussed and suggestions are put forward for the future work.

关键词： Three Gorges Project flood control regulation

Improvement Strategies of flood control Landscape in Suburban Villages and Towns from the Perspective of Aquaphilia and Livability

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Journal of Landscape Research 2022年第6期14卷 40-42,46页

作者： DING Huangjie YAN Chen FANG Cheng ZHANG Shijie LV Yuanhao College of Landscape Architecture and Art Fujian Agriculture and Forestry UniversityFuzhouFujian 350108China Research Center of National Water Park FuzhouFujian 350108China Fujian Urban and Rural Planning Design Institute FuzhouFujian 350000China

In the context of urban and rural integrated development, many suburban villages and towns are still threatened by both urbanization and natural disasters. In order to explore the improvement strategies of flood control landscape integrating water ecology, water safety, water culture and water landscape, the Luozhou Ancient Town by the Wulong River in Fuzhou City was taken as an example, and the concept of pluralistic symbiosis from the perspective of aquaphilia and livability was proposed through field investigation, data monitoring, site analysis and planning, that is, while retaining the positive attributes of “boundary”, its negative limitation of “pluralistic” space is broken, so as to establish a pluralistic and symbiotic environment with aquaphilia and livability. It can not only effectively alleviate the contradictions between urban and rural areas, between water and land, and between old and new cultures, but also activate the vitality of suburban villages and towns, providing a new idea for the improvement of flood control landscape.

关键词： Livability Urban and rural integration flood control Waterfront landscape

Using Real-time flood Forecasting and Prediction to Support flood control Decision-making:the Case of Huai River flood in 2003

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Using Real-time Flood Forecasting and Prediction to Support ...

Hydrological adjustment and flooding control of wetlands in the Liaohe Delta

中国气象学会2003年年会

作者： Liu Jinping (Bureau of Hydrology,Ministry of Water Resources,Beijing 100053)

＜正＞ Real-time flood forecasting and prediction play a very important role in the early warning to flood disaster. The more accurate the forecast and the longer the warning time is the better the community able to react. This paper aims at introduction to the experiences and modus operand by which Chinese hydrologists provided the flood forecasts and prediction with long lead time and high accuracy, as a core foundation of early warning for the reduction and mitigation of flood disasters, and decision-making for scientific flood dispatching, reasonable water projects operation and effective flood-water utilization during the Huai river flood in *** river basin, one of seven big river basins in China, hit by heavy rainfall from June 20 to July 21 in 2003, the accumulate value of the mean average precipitation amounts to 487mm which is more than twice as much as that in the same period of normal years. With the result that Huai river occurred the second large basin-wide flood since 1949, and the water level of some reaches in middle stream of main river exceeded the tallest in history by 0. 25-0. 51 meters. During this big flood, affected population amounted to 37 millions, inundated farmland reached 3. 8 million hectares and the total direct losses of people’s property and gross national product summed to 28. 5 billions RMB Yuan, or about 3. 5 billions US dollarsIn the period of Huai river flood, the Chinese hydrologists focused on the various needs from decision-making departments of flood control and water projects management to provide all kinds of flood forecasting and prediction by the whole bag of tricks. Three results of forecasts and prediction were provided for different purposesi the first one, based upon Quantity Precipitation Prediction （QPF） from department of meteorology produced daily stream flood prediction up to 10 days in advance for decision making of flood disaster preparedness including dweller evacuation from flood prone area and material r

关键词： flood forecasting and prediction flood control decision-making actual use

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Journal of Environmental Sciences 2003年第2期15卷 146-151页

作者： XIAODu－ning WANGXian－li 等 InstituteofAppliedEcolog ChineseAcademyofSciencesShenyang110016China IntituteofColdandAridRegionsEnviroment＆Engineering CASLanzhou730000China

The function of estuary wetland on hydrological adjustment and flooding control is studied in this paper. It is estimated that the evapotranspiration in the reed field during growth season(June to October) is 722.9 mm, which is 37.5% higher than large water body(E 601∶525.9 mm). The water replacement rate in the reed field can reach 95% only when the rains continuously for 11 days and the precipitation reached 912 mm. For the water balance in the paddy field, the total water requirement ranges between 1920 and 1860 mm, among which, 31% is from precipitation, and the left is provided by reservoirs. The water usage efficiency is 0.35 at present productivity. Based on the landscape characteristics and functionalities on flooding control, 5 functional zones are designed for the Liaohe Delta: key protected area; underground storage area; flooding discharge area; flood diversion area in emergency; and flood control drainage area.

关键词： hydrological adjustment flood control water replacement water balance landscape planning

NUMERICAL SIMULATION OF FLOW THROUGH ORIFICE ENERGY-DISSIPATORS IN XIAOLANGDI flood-DISCHAR-GE TUNNEL

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Journal of Hydrodynamics 2000年第3期12卷 41-46页

作者： Qu, Jingxue Xu, Weilin Yang, Yongquan Wang, Wei Diao, Mingjun Sichuan Univ Chengdu China

Cavitation of orifices is one of the main problems of the Xiaolangdi flood discharge tunnels. Along with the decompression experiment, the flow field was calculated by using an axis-symmetrical κ-Ε turbulence model. The calculated pressure distribution was compared with the measured data and in agreement with each other. The calculated results show that few of the cavitation bubbles generating at the orifice edge can reach the wall under the calculation condition, the force applied on the orifice surface and the flow pattern before the orifice may be improved obviously by adding the vortex elimination ring at the upper side of the orifice.

关键词： Computer simulation Discharge (fluid mechanics) Energy dissipators flood control Flow of water

Evaluating the hydrological effects of the Three Gorges Reservoir based on a large-scale coupled hydrological-hydrodynamic-dam operation model

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Journal of Geographical Sciences 2023年第5期33卷 999-1022页

作者： ZENG Sidong LIU Xin- XIA Jun DU Hong CHEN Minghao HUANG Renyong Chongqing Institute of Green and Intelligent Technology CASChongqing400714China Chongqing School University of Chinese Academy of SciencesChongqing400714China State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan430072China College of Resources and Environmental Science South-Central Minzu UniversityWuhan430074China Yangtze River Scientific Research Institute Wuhan430010China

Understanding the hydrological effects of the Three Gorges Dam operation in the entire reservoir area is significant to achieving optimal dam regulation. In this paper, a large-scale coupled hydrological-hydrodynamic-dam operation model is developed to comprehensively evaluate the hydrological effects of the river-type Three Gorges Reservoir. The results show that the coupled model is effective for hydrological, hydrodynamic regime and hydropower simulations in the reservoir area. Dam operation could have a notable positive effect on flood control and could reduce the maximum daily flood peak by up to 26.2%. It also contributes a large amount of hydropower, approximately 94.27 TWh/year, and a water supply increase for the downstream area of up to 22% during the dry season. In the flood season, the water level at Cuntan would increase under the condition that the water level of the dam is higher than approximately 158 m due to dam operation. In the dry season, attention should be paid to the low flow velocity near the dam in the reservoir area.

关键词： hydrological effects Three Gorges Reservoir coupled model flood control

COMPUTATION OF DISCHARGE IN MEANDERING COMPOUND RIVERS

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Journal of Hydrodynamics 1999年第1期11卷 50-55页

作者： Wang, Wei Cai, Jinde Xu, Weilin Sichuan univ Chengdu China

Method of computing the discharge distribution of overbank flow in meandering rivers was presented with the concept of momentum transfer. The formulae of transverse or radial depth-average velocity on flood plains and main channel were obtained through theoretical analysis. The verification shows that the computational discharges coincide basically with the measured ones in laboratory.

关键词： Channel flow flood control Flow of water Numerical analysis Numerical methods Rivers