三峡工程建成后长江中下游干流河道治理对策

Countermeasures of channel regulation for main stem of the mid-lower Yangtze River after completion of TGP

长江中下游干流河道整治事关中下游防洪安全及沿江地区经济社会可持续发展大局,近年来在上游来沙减少和三峡工程的作用下,清水下泄导致中下游干流河道发生了长距离的冲刷,并引起局部河势产生了较大的变化。根据三峡工程建成后长江中下游干流河道存在的主要问题,对中下游干流河道的治理对策措施进行了初步探讨。

The river channel regulation of mid-lower Yangtze River is a matter of sustainable development of society and economy and flood control safety in the mid-lower Yangtze River and the nearby area.In recent years,under the influence of sediment reduction from upstream and TGP operation,the main stem river channel of the mid-lower Yangtze River is scoured in a long distance range and the local river regime changes largely with the release of clear water.According to main problems of the mid-lower Yangtze River channel after TGP operation,the regulation countermeasures for the main stem of mid-lower Yangtze River is preliminarily discussed.