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近海区域大多为温带季风型大陆气候,平均风力近8级.近年来,风电场以其优越的环保特性、可再生、无污染、能量大、前景广的优势越来越多地被应用于发电系统.因受海水潮汐影响,近海区风电场的施工面临诸多难题,大多需设置挡水围堰,以保障施工区域的施工条件及环境.传统的围堰是用土石进行砌筑,该方法在实施过程中施工机械易倾斜,围堰易被海水冲刷破坏.山东电建二公司在总结以往出现问题的基础上,采用了土工布包裹海砂分层压实与块石护坡相结合的围堰施工方法,解决了以往单纯以土石为材料的围堰易被海水冲刷的难题,并在大唐莱州三期工程得以应用.
Most offshore areas are temperate monsoon-type continental climate with an average wind power of nearly 8. In recent years, wind farms have been increasingly applied to power generation due to their superior environmental characteristics, renewable, non-polluting, energy-rich and broad prospects System.Because of tidal effect of seawater, the construction of offshore wind farms faces many difficulties, most of them need to set up retaining cofferdam to ensure the construction conditions and environment in the construction area.The traditional cofferdam is made of earth and stone, In the process of implementation, the construction machinery tends to be inclined and the cofferdam is easily damaged by seawater erosion.Based on the summarization of the problems in the past, Shandong TEDA II Company adopted a combination of cofferdam with sea sand layered compaction and block stone revetment Construction methods to solve the past simply to earth and rock as the material of the cofferdam easily washed by sea water problems, and in Datang Laizhou three projects to be applied.