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发明公开
CN104674779A 一种防淤堵复合土工布 无效 - 驳回

一种防淤堵复合土工布
摘要：
一种防淤堵复合土工布，涉及土木工程领域，其结构为：大孔径土工布、中间孔径土工布，小孔径土工布三层土工布叠加复合而成，或者是大孔径土工布和小孔径土工布两层土工布叠加复合而成，本发明的有益效果在于：不同有效孔径的土工布两层或者三层土工布叠加减少於堵的可能性，增强反滤效果，不会发生管涌，保土率高，能达到95%以上；而且成本高、施工周期短，体积小。
摘要（英）：

The invention discloses clogging prevention composite geotextile and relates to the field of civil engineering. The clogging prevention composite geotextile is characterized by being composited of overlapping of a large-aperture geotextile body, a middle-aperture geotextile body and small-aperture geotextile body or composed of overlapping of the large-aperture geotextile body and the small-aperture geotextile body. The clogging prevention composite geotextile has the advantages that possibility of clogging is effectively reduced by overlapping of two layers or three layers of geotextile bodies of different apertures, reverse-filter effect is enhanced, piping never occurs, and soil conservation rate is high and can reach above 95%. The clogging preservation composite geotextile is low in cost, short in construction period and small in size.

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