耐老化增糙高性能防汛土工袋研制及试验

Development and test of anti-aging and roughening high-performance flood control soilbag

用于防汛抢险的土工袋多为聚丙烯(PP)编织基布,耐候性差,在野外使用时较易老化;聚酯(PET)长丝机织布土工袋尽管比PP编织袋性能好,但其野外耐老化及抗滑性能仍有待提高。阐述耐老化增糙高性能聚酯机织布土工袋的研制方法与工艺,主要物理力学性能测试指标以及耐候性试验和野外堆砌试验。测试及试验显示,所研制的防汛抢险土工袋具有力学性能高、持土析水与耐候性能好、摩擦系数大的特点,可在南方汛期较长或野外恶劣环境下应用于堤坝重大险情的抢护。

Soilbags used for flood control and emergency rescue are mostly polypropylene(PP)woven fabrics,which have poor weather resistance and are easy to age when used in the field. Although polyester(PET)filament woven geotextile bag has better performance than PP woven bag, its field anti-aging and skid resistance still need to be improved. This article introduces the development method and technology of aging resistance, roughness high performance polyester machine woven geobag, main physical and mechanical properties test indexes, as well as weather resistance test and field stacking test. The trials show that the developed flood control and emergency soilbag has the characteristics of high mechanical properties, good soil retention and water separation, good weather resistance, and large friction coefficient. It can be applied to the rescue and protection of dikes in the south under the long flood season and the harsh field environment.