论文部分内容阅读
崇明县(岛)四面环水,受长江迳流和台风、高潮的影响,历史上灾情频繁。虽历代政府重视汛期防洪抗灾,但由于堤防标准偏低,每遇台风、高潮、暴雨的袭击,滩坍、堤决、内涝时有发生,严重影响了人民正常的生产和生活,阻碍了生产和经济的发展。解放后党和政府加大了水利工程建设的力度,培修加固了堤防,兴建了大量保滩护岸及促淤工程;以及并港建闸、整治水系、发展机电排灌等工程。提高了抗御自然灾害的能力。到目前为此,全县有一线海塘大堤总长229.251km,堤顶高程普遍在7.0-7.5m之间。其中土坡长163.484km、干砌护坡长2.269km、灌砌块石护坡23.953km、抛石护坡2.08km、砼预制块护坡27.475km,1996-1998年建成护坡达标工程10.538km。历年来兴建丁坝
Chongming County (Island) surrounded by water, affected by the Yangtze River inflow and typhoon, orgasm, frequent disasters in history. Although the governments of all ages have attached great importance to the flood control and flood fighting in flood season, the frequent occurrence of typhoons, climaxes and torrential rains, beach slump, levee breakdowns and waterlogging occur frequently due to the low standard of dike, seriously affecting the people’s normal production and life and impeding the production and economic development. After the liberation, the party and government stepped up the construction of water conservancy projects, strengthened the embankment by training, built a large number of protection bank protection and siltation projects, built sluices in Hong Kong, rectified water systems and developed electromechanical irrigation and drainage projects. Improved ability to resist natural disasters. So far, the county has a first-line seawall embankment total length 229.251km, embankment elevation generally between 7.0-7.5m. The length of slope is 163.484km, the length of dry slope is 2.269km, the slope of irrigation stone is 23.953km, the slope of rubble is 2.08km, the slope of concrete prefabricated block is 27.475km, and 10.538km is completed in 1996-1998. Over the years to build Dingba