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Optimal Operation for Baoying Pumping Station in East Route Project of south-to-north water transfer

Chinese Journal of Mechanical Engineering 2009年第1期22卷 78-83页

作者： FENG Xiaoli QIU Baoyun CAO Haihong WEI Qianglin TENG Haibo Research Center of Fluid Machinery Engineering and Technology Jiangsu University Zhenjiang 212013 China School of Energy and Power Engineering Yangzhou University Yangzhou 225009 China Jiangdu water Conservancy Works Bureau of Jiangsu Province Jiangdu 225200 China

Baoying pumping station is a part of source pumping stations in East Route Project of south-to-north water transfer in China. Aiming at the characteristics of head varying, and making use of the function of pump adjustable blade, mathematical models of pumping station optimal operation are established and solved with genetic algorithm. For different total pumping discharge and total pumping volume of water per day, in order to minimize pumping station operation cost, the number and operation duties of running pump units are respectively determined at different periods of time in a day. The results indicate that the saving of electrical cost is significantly effected by the schemes of adjusting blade angles and time-varying electrical price when pumping certain water volume of water per day, and compared with conventional operation schemes （namely, the schemes of pumping station operation at design blade angles based on certain pumping discharge）, the electrical cost is saved by 4.73%-31.27%. Also, compared with the electrical cost of conventional operation schemes, the electrical cost is saved by 2.03%-5.79% by the schemes of adjusting blade angles when pumping certain discharge.

关键词： south-to-north water transfer Baoying pumping station optimal operation adjusting blade angle time-varying electrical price

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Asynchronism-synchronism of regional precipitation in south-to-north water transfer planned areas

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Journal of Geographical Sciences 2001年第2期11卷 161-169页

作者： ZHENG Hong-xing, LIU Chang-ming (Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China) Institute of Geographic Sciences and Natural Resources Research CAS

This paper proposes a method on analyzing the asynchronism-synchronism of precipitation of different hydrological regions regarding the S-to-N water transfer areas of eastern China. The general process of the analysis includes three steps. Firstly, we created the rainfall series of the region concerned by calculating the regional average rainfall of the stations in the area with the help of the classical Thiessen Polygon method. Secondly, the standards of assessment indices for wetness or dryness are set according to Gamma distribution function with a certain probability P 37.5% or 62.5% given respectively. Finally, the frequency of nine combinations are counted as the quantitative feature of asynchronism and synchronism in three time scales, that is the yearly, seasonal and monthly scales. The asynchronism-synchronism of two region pairs has been estimated. The results show that the frequency of precipitation asynchronism in 1957–1998 is larger than the synchronism frequency for both the north China-middle and lower Yangtze River pair and for the north China-upper Hanjiang River pair. As for the synchronism phenomena, the frequency of Nd?Sd is rather low. As the combinations that are suitable for water transfers are Nd?Sw, Nn?Sw, Nd?Sn and Nn?Sn, the total frequency of these combinations for north China-middle and lower Yangtze River is 40% on an annual basis, but only 28% in spring when water shortages are most likely to occur. The total frequency of these combinations for north China-upper Hanjiang River is about 24% on an annual basis, but 35% in spring and winter. It should be noted that if future precipitation patterns are similar to that of the period 1957–1998, it is very important to change the natural character of asynchronism-synchronism by enhancing the capability of hydro-projects regulation and improving management of the water transfer project.

关键词： synchronous frequency asynchronous frequency south-to-north water transfer

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Stability and Safety Analysis of Canal Body in Gob of Mid-route of China’s south-to-north water transfer Project （Jiaozuo Segment）

Stability and Safety Analysis of Canal Body in Gob of Mid-ro...

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2006（沈阳）国际安全科学与技术学术研讨会

作者： ZHAO Zhongming ZHANG Jianxiong ZHANG Yanbin School of Energy Science and Engineering HeNan Polytechnic University Jiaozuo 454003 China

＜正＞The project of south-to-north water transfer is a super infrastructure used to optimize water resource collocation and rationally utilize water resource in China. The stability and safety are very important during its design, construction and management. Because the canal of Mid-route of China’s south-to-north water transfer Project will cross some mined-out coalfields in Jiaozuo city, the canal body will meet a special problem on engineering geology and the safety of the canal body will be influenced due to coal seam causing surface movement basin and surface crack. Firstly, the basic situation about Jiaozuo coal mining area and its strata structure and deformation character in gob are briefly introduced. Secondly, according to the characteristics of movement and deformation in the gob ground, the harmful effects of the ground subsidence, inclination deformation, horizontal deformation and curvature deformation on the canal body are mainly analyzed. Finally, in the light of the characteristics of slide and deformations of the canal body, the method of Felunnius and relevant formulas applied to calculate the stability and safety of the canal body are put forward and detailed introduced, which will play important guidance roles in the course of the design and safe construction of the mid-route of China’s south-to-north water transfer project.

关键词： south-to-north water transfer gob canal body stability and safety

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water transfer determines the regional spread dynamics of non-native fish species

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water Biology and Security 2023年第2期2卷 73-79页

作者： Jiao Qin Bjorn Victor Schmidt Lei Zhang Fei Cheng Songguang Xie The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences Institute of HydrobiologyChinese Academy of SciencesWuhanChina Marine Resources Big Data Center of south China Sea Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang)ZhanjiangChina Department of Biological and Environmental Sciences Texas A&M UniversityCommerceTXUSA State Key Laboratory of Marine Resources Utilization in south China Sea Hainan UniversityHaikouChina

Interbasin water transfer projects(IBWT's)have emerged as dispersal corridors for aquatic species.However,little is known about how water transfer affects regional spread dynamics,or shapes the genetic diversity patterns of non-native populations.Shimofuri Goby Tridentiger bifasciatus is a globally introduced fish species with many wellestablished populations in IBWT's.Here,we used nuclear microsatellites to assess the genetic diversity and population structure of the Shimofuri Goby in its native and introduced sites belonging to two IBWT's in China.Our objectives were to(1)reveal the genetic diversity patterns of the Shimofuri Goby during regional spread,and(2)identify its mode of spreading in water transfer systems.We observed(1)a high level of genetic diversity in non-native populations without evidence of bottleneck effects,(2)that non-native populations with a longer water transfer times had a higher private allele richness,and(3)that non-native populations showed a highly mixed genetic structure,low level of genetic differentiation,and no significant relationship between geographical and genetic distances.Our results indicate that the genetic patterns of diversity of non-native populations are mainly shaped by a linear cascade spread processes due to long-distance movement of larvae,and are probably related to propagule pressure caused by the construction of water transfer.To manage the non-native populations of T.bifasciatus,preventive actions and physical removal should be implemented in IBWT's.

关键词： Biological invasions water diversion Propagule pressure Dispersal south-to-north water transfer Tridentiger bifasciatus

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跨流域调水对汉江中下游生态环境影响及对策

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生态环境与保护 2010年第10期 1-4页

作者：徐少军林德才邹朝望

实施南水北调中线工程，可缓解京、津及华北地区水资源紧张状况，但是也会对汉江中下游水环境容量造成一定的影响，而引汉济渭工程的实施，更将加剧因南水北调对汉江中下游地区生态环境的影响。通过分析双重跨流域调水对汉江中下游地区... 详细信息

实施南水北调中线工程，可缓解京、津及华北地区水资源紧张状况，但是也会对汉江中下游水环境容量造成一定的影响，而引汉济渭工程的实施，更将加剧因南水北调对汉江中下游地区生态环境的影响。通过分析双重跨流域调水对汉江中下游地区生态环境的影响因素，提出了缓解和弥补生态环境恶化影响的相关对策措施，如实施一体化、双轨制流域管理体制，加快“引江补汉”——向丹江口水库补水工程建设，进行汉江流域水资源专题研究，构建汉江流域水权与生态补偿机制等。

关键词：生态环境生态补偿水量水权制度流域管理引汉济渭南水北调 ecological environment ecological compensation water amount water rights system basin management water diversion projects from the Hanjiang river to the Weihe River south-to-north water transfer

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