Application of geotextiles in the filtering function of dams

Here to say is mainly the application of geotextile in the dam foundation, in order to lay the effect, geotextile is generally combined with geonet together with the use of. Geotextile is a new material on the geotechnical, but also recognized by the majority of engineers of a kind of environmental protection materials, so its application in a number of environmental protection projects is quite a lot, at the same time because of the geotextile filtering role is very good, its application in water conservancy and other projects is also a lot.

 Dam project also belongs to a kind of environmental protection project, in the dam project, geotextile mainly play the role of anti-filtration, as long as the construction process of geotextile fixed good, then even for the seaside dams, in the repeated action of high and low tide, geotextile can be normal role.

Geotextile application in the dam project is the construction of the main measures taken in two ways: on the one hand, directly in the silt on the foundation of the geotextile, so that the silt in the dam foundation of the water shoots out, so that the solidification, increase the stability and strength of the dam foundation; on the other hand is the geotextile above the laying of a layer of geonet to use the tensile strength of its very gas that help to enhance the stability of the dam foundation, in which the geonet Can also play a role in protecting the geotextile.

In the dam project on the application of geotextile anti-filtration role, geotextile as anti-filtration materials, then its hydraulic properties of the permeability coefficient requirements are very high, the general requirements of the permeability coefficient is more than 10 times the soil.

Geotextile anti-filtering role of the application or more, but generally in the fixed roadbed and water conservancy projects will be applied more. As for the geotextile how to play the role of anti-filtration, generally speaking, under the action of permeability, due to close to the geotextile are smaller particles, and this situation is gradually away from the geotextile, and then will gradually form a certain thickness of the overhead layer, the permeability coefficient of the overhead layer is very large, and in the geotextile play a role in at the same time, in the overhead layer of the upper layer will be the formation of a layer of natural filtration, which will play a role of This can play the role of anti-filtration and thus play a certain role in retaining soil.