| 长沙市防洪建设中若干重要问题探讨 |
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| 引用本文： | 毛德华,夏军,龚重惠.长沙市防洪建设中若干重要问题探讨[J].地理研究,2003,22(6):716-724. |
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| 作者姓名： | 毛德华 夏军 龚重惠 |
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| 作者单位： | 1. 武汉大学水利水电学院, 武汉 430072;
2. 湖南师范大学资源与环境科学学院, 长沙 410081;
3. 中国科学院地理科学与资源研究所, 北京 1001001;
4. 长沙市水利局, 长沙 410005 |
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| 基金项目： | 中国科学院地理科学与资源研究所知识创新工程领域前沿项目(CX10G E0 1 0 8)，湖南省自然科学基金项目 ( 0 1JJY30 14 ) |
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| 摘 要： | 探讨了全国重点防洪城市长沙市防洪建设中的若干重要问题:防洪标准、设计洪水位、防洪大堤高度等的确定;建设方针与程序、整体防洪能力建设、防洪建设与基础设施建设和景观建设协调发展等。长沙设计洪水位的确定应综合考虑以下几个方面:湘江长沙段洪水与其支流和东洞庭湖洪水不存在高标准洪水同期遭遇问题,更不存在同频率洪水遭遇问题;湘江洪水流量与水位关系不是长沙洪水设计的主要依据;而南洞庭湖洪水位顶托和河道槽蓄量减少是影响长沙洪水位高低的动、静态因素。目前,长沙城市堤防设防高度偏高,减少了大堤的稳定性,造成了无效投资,影响了城市景观。防洪工程建设应分期实施、先除险后加固、注重整体防洪能力的提高,并处理好与城市基础设施建设和景观建设的关系。
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| 关 键 词： | 防洪标准 设计洪水位 防洪工程建设 长沙市 |
| 文章编号： | 1000-0585(2003)04-0716-09 |
| 收稿时间： | 2003-02-12 |
| 修稿时间： | 2003年2月12日 |
Study on several important problems about urban flood-control construction of Changsha city |
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| MAO De hua,XIA Jun,GONG Chong hui.Study on several important problems about urban flood-control construction of Changsha city[J].Geographical Research,2003,22(6):716-724. |
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| Authors: | MAO De hua XIA Jun GONG Chong hui |
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| Institution: | 1. College of Irrigation and Electricity, Wuhan University, Wuhan 430072, China;
2. College of Resources and Environmental Science, Hunan Normal University, Changsha 410081, China;
3. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
4. Changsha Hydraulic Agency, Changsha 410005, China |
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| Abstract: | Seveal problems about urban flood control construction of Changsha city, akey important flood control city in China, are studied These issues include the establishment of flood control standard, flood level designing and height determination of floodwalls; construction policy and program; entire flood control power construction; harmonious development among flood control installations construction, infrastructure construction and urban landscape construction,etc The designed flood recurrence interval (flood control standard) in Changsha city is 100a The establishment of flood level designing should take the following aspects into consideration: high standard floods in Xiangjiang River flowing through Changsha city and its branches as well as Dongting Lake have never met with each other nor the occurrence of the same frequency flood; relation is not the major evidence of flood design;and the amplitude of setup of flood of the South Dongting Lake is a unsteady influencing factor and the reduction of channel storage is a steady influencing factor of flood level in Changsha city Flood control levee altitude is higher than the real demand of Changsha city,which reduces the levee steadiness, and causes ineffective investment and influence on the urban landscape The flood control projects must be constructed step by step,firstly excluding the dangerous factors and then reinforcing levee and therefore improving the entire flood control power, also be harmonized relations with the construction of urban infrastructure and the construction of urban landscape |
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| Keywords: | flood control standard flood level design flood control project construction Changsha city |
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