The stability of river beach embankments and reservoir dams is different from that of general embankments or slopes. In addition to the general external force and the weight of the soil, the side slope must also be affected by water erosion, buoyancy, and infiltration. If the lower part of an embankment or dam is often immersed in water, the water inside the dam will gradually seep to the outside, forming a seepage zone in the dam. This moisture will reduce the stability of the downstream slope and cause the collapse of the dam. In order to ensure the stability of the dam, it is very important to control the water seepage in the side lift dam.
Advantages of geogrid for dyke drainage:
1. The geogrid has a good effect of sand seepage and water in the vertical and horizontal directions. Therefore, the geogrid can be used in the dam, which is particularly suitable for places with little yellow sand or gravel.
2. Geogrid for dyke drainage can not only drain water, but also strengthen and separate the geotechnical structure.
3. The geogrid can limit the seepage in the dam and collect the water to remove it.