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peratures above the upstream sediment elevation,downstream,and in the areas affected by the flood-discharge holes


                of the dam body change periodically with seasons. The measured indicators such as the highest temperature,lowest

                temperature,foundation temperature difference,and maximum temperature difference all show good regularity. Due

                to the significant differences between the measured sediment temperature and reservoir water temperature and the pre‐
                dicted values at the design stage,the measured steady temperature of the dam body is higher than the original design


                prediction. The steady temperature distribution is close to a uniform isothermal field,which makes the actual founda‐
                tion  temperature  difference  and  the  upstream-downstream  temperature  difference  of  the  dam  body  smaller  than  the
                design predictions. This reduces the tensile stress of the dam body caused by the temperature difference,which is

                beneficial for preventing cracks in concrete.




                Keywords:the Three Gorges Gravity Dam;safety monitoring;reservoir temperature;temperature field;tempera‐

                ture difference
                                                                                     (责任编辑:王  婧)



             (上接第 990 页)

                   Study on water transfer mechanisms of the Yangtze River and Yellow River inter-basin

                                multi-route networking mutualism I:mechanisms and model
                               1              1               2            1          3           2





                       FU Xiang ,ZHAO Xiaodan ,PENG Shaoming ,FAN Zhipeng ,WANG Yu ,LI Yunling



                     (1. State Key Laboratory of Water Resources Engineering and Management,Wuhan University,Wuhan  430072,China;


                         2. MWR General Institute of Water Resources and Hydropower Planning and Design,Beijing  100120,China;



                             3. Yellow River Conservancy Commission,Ministry of Water Resources,Zhengzhou  450003,China)

                Abstract:Study on the inter-basin and multi-line network water transfer mechanism of the Yangtze River and the
                Yellow  River  in  the  context  of  changing  environments  is  of  great  significance  for  enhancing  the  capacity  of  water
                resources security of the Yellow River Basin. This paper focuses on the Yangtze River and the Yellow River inter-
                basin multi-line water transfer,integrates the characteristics and advantages of each of the three routes of the South-


                to-North  Water  Diversion,and  proposes  the  definition,the  overall  structure,and  the  interaction  relationship


                between components of the Yangtze River and Yellow River inter-basin network of mutual water transfer mechanisms.

                A multi-scale,multi-process,multi-factor,and multi-constraint source-flow-network-allocation synergistic optimi‐


                zation  model  was  constructed  around  the  multi-basin  water  network  features  of  multi-source  supply,multi-route


                mutual aid,multi-engineering regulation,multi-target conflict,and multi-subject game. In consideration of the inter‐



                active characteristics of the source-flow network and distribution system,the following synergistic development objec‐

                tives were established:guaranteeing the efficient operation of the water network,maintaining the spatial equilibrium



                of water resources,facilitating socio-economic development,and ensuring ecological health. To achieve these objec‐

                tives,a synergistic optimization algorithm based on NSGA-II and cooperative game theory was proposed to allocate
                water network resources in a flexible and mutually beneficial manner.



                Keywords:Yangtze River;Yellow River;inter-basin water transfer;water network mutual assistance;water trans‐



                fer mechanism;coordinated optimization of water source-flow-network-allocation
                                                                                     (责任编辑:耿庆斋)
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