scholarly journals Impact on operation of the Middle Route Project of South-to-North Water Diversion

2018 ◽  
Vol 246 ◽  
pp. 01040
Author(s):  
Hui Wan ◽  
Huiyong Huang ◽  
Sidong Zeng ◽  
Yibo Yan ◽  
Yongyan Wu ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Level ◽  
Water Diversion ◽  
Safe Operation ◽  
Ecological Civilization ◽  
Long Distance ◽  
Emergency Rescue ◽  
North Water ◽  
Control Failure ◽  
The Impact

The inter-basin water transfer project is one of the most important means to solve the uneven distribution of water resources in time and space, rationally allocate water resources, and promote the construction of water ecological civilization. Research on the operation impact and channel hydraulic response is meaning for the safe operation of long-distance water conveyance canals. Taking the Middle Route Project (MRP) of South-to-North Water Diversion (SNWD) as example, this paper built the onedimensional steady and unsteady flow model and investigated the impact of roughness change, emergency rescue technology and equipment, and sluice control failure. Results showed that increased roughness decreased the water diversion efficiency of MRP to some degree. The emergency rescue technology and equipment occupied the channel section and declined flow capacity. The occurrence of sluice control failure relatively played an increasing impact on upstream water level and a decreasing impact downstream water level and flow discharge. The impact of the above scenarios on the scheduling operation can be reduced to a certain extent by regular cleaning and maintenance, development of rational water emergency rescue project, development of staff skill, etc. This research can provide support for safe operation and regulation of the MRP of SNWD.

Analysis on the Impact of the Status of the Fresh-Old Concrete Bonding Interface on Dam Safety

2013 ◽  
Vol 405-408 ◽  
pp. 816-823
Author(s):  
Tao Huang ◽  
Guo Xin Zhang ◽  
Bo Yang ◽  
Lei Zhang
Keyword(s):  
Internal Force ◽  
Bonding Interface ◽  
Water Diversion ◽  
Gravity Dam ◽  
Safe Operation ◽  
Concrete Dam ◽  
Concrete Crack ◽  
The Status ◽  
North Water ◽  
The Impact

The bonding problem of interface between the fresh and old concrete is one of the main technological difficulties in the Heightening Project of Danjiangkou Dam in the South-to-North Water Diversion Project. At present, no mature experiences or engineering examples are found in China for concrete dam heightening. Because of the external environmental impacts of temperature change, aging and hydraulic fracturing on the interface between the fresh and old concrete, crack is likely to occur, which brings risks to the safe operation of the dam. In this article, the finite element direct force method was used to calculate the internal force. The safety of No. 1 dam monolith was calculated in accordance with the standard method for gravity dam in three conditions of fresh-old concrete bonding interface, i.e., perfect condition, cracked interface and cracked interface with water seepage. Suggestions for their solutions were also provided.

Beijing water resources and the south to north water diversion project

2005 ◽  
Vol 32 (1) ◽  
pp. 159-163 ◽  
Author(s):  
Duan Wei
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Demand ◽  
Socioeconomic Development ◽  
Water Environment ◽  
Water Saving ◽  
Water Diversion ◽  
The South ◽  
Water Diversion Project ◽  
North Water

Beijing is located in a semiarid region, and water shortage is a common problem in the city. Along with the rapid increase in water demand, due to fast socioeconomic development and an increase in population, a shortage of water resources and a deterioration of the water environment have become obstacles to sustainable socioeconomic development in Beijing. In the long run, sustainable water resources management, water conservation, and completion of the south to north water diversion project will solve the problem. This paper introduces the water resources situation in Beijing; analyzes future water demand; and discusses the actions of water saving, nontraditional water resources exploitation, wetland construction, and water environment protection. The paper also explains the importance of the south to north water diversion project and the general layout of the water supply strategy, water distribution system, and methods to efficiently use the diverted water in Beijing.Key words: water resources, water supply, water saving, water recycling, water diversion.

scholarly journals China’s South-to-North Water Diversion Project Empowers Sustainable Water Resources System in the North

2019 ◽  
Vol 11 (13) ◽  
pp. 3735 ◽  
Author(s):  
Giri R. Kattel ◽  
Wenxiu Shang ◽  
Zhongjing Wang ◽  
John Langford
Keyword(s):  
Water Resources ◽  
Environmental Sustainability ◽  
Northern China ◽  
Water Diversion ◽  
Water Infrastructure ◽  
Water Shortages ◽  
Water Resources System ◽  
Goods And Services ◽  
Water Diversion Project ◽  
North Water

Global freshwaters are severely depleted. Provision of improved water infrastructure technologies and innovation can address challenges posed by water shortages to environmental sustainability. China’s South-to-North Water Diversion Project has generated extensive debates over sustainability of water resources system in the northern drier region, which faces severe water scarcity hindering ecosystems, agriculture, industries and livelihoods. Some arguments extend the views that large infrastructure projects can have negative implications for biodiversity conservation and ecosystem goods and services. However, this study strengthens the opposite view, as such projects would resolve increasing environmental challenges northern China has been facing over many decades due to severe water shortages. The project empowers connectivity among individuals, community, and organizations that the sustainability of goods and services such as energy, irrigation and water supply are perceived, and livelihoods and the standard of peoples’ living is improved. A resilient, robust and adaptive water infrastructure framework can overcome the challenges of water shortages by meeting a long term social, economic and environmental goals for water resources systems in northern China. Such framework can also identify the thresholds of change and the threats associated with environmental sustainability.

scholarly journals Detecting Water Diversion Fingerprints in the Danjiangkou Reservoir from Satellite Gravimetry and Altimetry Data

Sensors ◽  
2019 ◽  
Vol 19 (16) ◽  
pp. 3510
Author(s):  
Nengfang Chao ◽  
Gang Chen ◽  
Zhicai Luo ◽  
Xiaoli Su ◽  
Zhengtao Wang ◽  
...  
Keyword(s):  
Water Level ◽  
Water Storage ◽  
Water Diversion ◽  
Spatiotemporal Variability ◽  
Spatiotemporal Pattern ◽  
The South ◽  
Danjiangkou Reservoir ◽  
Water Diversion Project ◽  
North Water ◽  
And Storage

The Danjiangkou Reservoir (DJKR) is the freshwater source for the Middle Route of the South-to-North Water Diversion Project in China, and its water level and storage changes are important for water resource management. To maximize the potential capacity of the Gravity Recovery and Climate Experiment (GRACE) mission, an improved Lagrange multiplier method (ILMM) is first proposed to detect terrestrial water storage anomalies (TWSA) in the small-scale basin (DJKR). Moreover, for the first time, water diversion fingerprints are proposed to analyze the spatiotemporal pattern of the TWSA in the DJKR. The results indicate that the increased water level and storage signals due to the DJKR impoundment in 2014 can be effectively detected by using the ILMM, and they agree well with the results from altimetry and in situ data. Additionally, the water diversion fingerprints due to the DJKR impoundment are inferred, and describe the progression of spatiotemporal variability in water storage. The results show that water storage decreased in the upper Hanjiang River and increased in the DJKR as well as to the east of it during the period 2013–2015. Our research provides a scientific decision-making basis for monitoring the water resources of the DJKR and managing the South-to-North Water Diversion Project.

scholarly journals Operation method of allowing variation interval of downstream water level in the middle route of South-to-North Water Diversion Project

2018 ◽  
Vol 246 ◽  
pp. 01039
Author(s):  
Yongyan Wu ◽  
Huiyong Huang ◽  
Qi Li ◽  
Yibo Yan
Keyword(s):  
Water Level ◽  
Water Diversion ◽  
Water Users ◽  
Operation Method ◽  
Water Diversion Project ◽  
Check Gate ◽  
Saint Venant Equations ◽  
North Water ◽  
Flow Changes ◽  
Variation Interval

To realize demand-oriented operations in the middle route of South-to-North Water Diversion Project, this paper proposed a pool operation method that a variation interval of water level at the upstream of the check gate is allowed. In this method, water users’ demand for flow changes can be satisfied as much as possible. Accordingly, downstream water depth is kept to fluctuate within a certain range, which is determined considering the canal safety, the operation frequency of check gates and the pool delay. The method is tested using the self-developed simulation platform for the middle route of South-to-North Water Diversion Project, which is established based on the Saint-Venant equations and programmed with the language Fortran. Results show that the flow changes demanded by water users, either increase or decrease, can be achieved effectively, while the water level variations can meet the restrictions for canal operation safety, and the frequency of gate adjustment is practically acceptable as well. Therefore, the operation method of allowing variation interval of downstream water level is suitable in the middle route of South-to-North Water Diversion Project at the current stage.

Development of One Dimensional Numerical Model on Large Water Diversion System

2015 ◽  
Vol 744-746 ◽  
pp. 1062-1065
Author(s):  
Cheng Zhang ◽  
Lin Zha
Keyword(s):  
Numerical Model ◽  
Boundary Conditions ◽  
Water Level ◽  
Large Scale ◽  
Water Diversion ◽  
One Dimensional ◽  
Continuous Simulation ◽  
North Water ◽  
Flow Transitions ◽  
Parallel Connections

A one-dimensional numerical model was developed for unsteady-flow in a large-scale conveyance channel with complex inner boundary conditions. Using Taylor expansion and finite difference method, this model incorporated three types of inner boundary conditions, including regulators, inverted siphons, and flumes with parallel connections. It can facilitate continuous simulation with large-amplitude variations in water level and flow discharge during the flow transitions. Transition flows were simulated by this model, which were caused by the operation of a single gate of the Middle Route of the South-to-North Water Diversion Project. The discharges of simulation were consistent with the discharges of formulas calculation, and the water level variations accords with hydraulic law. The results indicate its efficiency and applicability on simulating hydraulic response of large-scale conveyance channels with complex inner boundary conditions.

Sign in / Sign up

Export Citation Format

Share Document