Abstract
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.
Highlights
The Middle Route Project (MRP) of the South-to-North Water Transfer Project (SNWD) diverts water from the Danjiangkou Reservoir, and supplies water to Henan, Hebei, Beijing and Tianjin all the way to the north, with a total length of 1432km. It is one of the most effective means to alleviate the uneven distribution of water resources in Beijing, Tianjin and North China, rationally allocate water resources and promote the construction of water ecological civilization
As of September 2018, MRP has been continuously supplied with water safely for more than 1,370 days, with a total water transfer volume of 16.929 billion m3, which has ensured the safety of water diversion in the water receiving area, improved the water supply guarantee rate, and increased the total happiness of the people
It is of great significance to study the factors affecting the normal operation and the countermeasures of MRP to ensure the safe water supply of the water transfer project, the ecological and environmental, social and economic benefits
Summary
The Middle Route Project (MRP) of the South-to-North Water Transfer Project (SNWD) diverts water from the Danjiangkou Reservoir, and supplies water to Henan, Hebei, Beijing and Tianjin all the way to the north, with a total length of 1432km. It is one of the most effective means to alleviate the uneven distribution of water resources in Beijing, Tianjin and North China, rationally allocate water resources and promote the construction of water ecological civilization. It is of great significance to study the factors affecting the normal operation and the countermeasures of MRP to ensure the safe water supply of the water transfer project, the ecological and environmental, social and economic benefits
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