土工合成材料在黄河防汛抢险中的应用研究

Study on Application of Geotechnical Material Used in Rush Repair for Flood Control of the Yellow River

土工合成材料具有抗拉强度高、质地柔软、产品规格化、适应变形能力强、重量轻、便于储运、便于施工、抢险速度快、整体性好、造价低等诸多优点,因此近年来在防汛抢险中得到广泛应用。但是,若选型不当,有时会发生淤堵现象,对险情的抢护十分不利。“土工合成材料在黄河防汛抢险中的应用研究”项目,针对土工合成材料在防汛抢险应用中存在的突出问题,对不同材料类型、不同土壤组成,采用室内外实验的方法,研究得出了适应黄河防汛抢险的反滤准则,给出了适用于黄河的土工织物孔径和土壤特征粒径之间的关系表达式,从而为正确选用和储备适合黄河防汛抢险的土工合成材料提供了科学依据。

Geotechnical material has quite a lot of advantages of high tensile strength, soft quality, standardized products, strong capability for deformation, light in weight, easy for transportation and construction, good in entirety and low cost. Therefore, it has been widely applied in rush repair for flood control. If the type is not rightly selected, it will cause blockage that is extremely unfavorable to the rush repair. The project of ' Study on Application of Geotechnical Material Used in Rush Repair for Flood Control of the Yellow River' has reached filtering standard suiting to the rush repair of the Yellow River, obtained the relationship between the aperture of geotechnical material and soil particles which is suitable to the Yellow River and provided scientific basis for correctly selecting and storing geotechnical material used for rush repair in flood prevention in the light of the existing problems of geotechnical material used in rush repair and according to the different types of material and soil composition and tests conducted both indoor and outdoor.