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1 引言 上工布已在水利堤防修筑过程中广为使用,除通常以无纺土工布作为反滤层外,还在石料缺乏地区以有纺土工布编织袋装砂修筑堤心。由此可见,对土工布各种特性的研究测定也显得格外重要。 近期,长江口深水航道整治需要修筑双导堤,双导堤设计就拟用袋装砂修筑堤心,模袋混凝土护面的形式(其结构见图)。 从图中可以看出,必须用四种上工布:垫层、反滤层、袋装
1 Introduction Shanggongbu has been widely used in water conservancy dike construction. Except usually using non-woven geotextile as the filter layer, embankment construction is also carried out by weaving geotextile bagged sand in areas lacking in stone. This shows that the various characteristics of geotextile research determination is also particularly important. Recently, the Yangtze Estuary deepwater channel regulation need to build a double guide embankment, double guide embankment on the proposed plan to use bagged sand embankment construction, mold bag concrete face form (the structure shown in Figure). Can be seen from the figure, you must use four kinds of workers cloth: cushion, filter layer, bagged