堤防防渗加固方法研究

渗透破坏是堤防工程中一种较为常见的险情，要做好渗透破坏的除险加固工作，应了解渗透破坏的类型，并进行防渗加固方案比较，以找出经济合理的加固措施。重点讨论了采用黏土斜墙法、复合土工膜防渗法、贴坡排水法、压浸平台法、劈裂灌浆法进行堤身防渗，以及采用加盖重、加铺盖、帷幕灌浆、排渗井、减压沟、土工膜及垂直防渗墙进行堤基防渗的方法。指出堤防防渗方法的确定取决于堤身的土质和填筑质量、堤基土体的地质特性及堤防周围的地理环境等因素，必要时应采用渗流计算进行复核。

Study on Methods of Anti - Seepage and Reinforcement of Embankments

Osmotic damage is a common dangerous condition for embankments. In order to get rid of the dangerous condition of osmotic damage and reinforce embankments, we should understand the types of osmotic damage, compare the plans for reinforcement and find out economic and rational measures. The paper mainly discusses to prevent seepage of embankment by methods of clay inclined wall, compound geomembrane, slope drainage, anti-saturation berm and splitting grouting and to prevent seepage of dyke foundation by methods of adding concrete apron, curtain grouting, drainage well, decompression ditch, geomembrane and vertical impervious core. It puts forward that the determination of anti-seepage methods depends on the factors of soil texture, quality of filling, geologic characteristic of dyke earth mass and geographic environment of embankment surroundings. It should be rechecked by seepage calculation if necessary.