What are the applications of three-dimensional composite drainage network in reservoir bottom anti-seepage

In water conservancy projects, seepage prevention at the bottom of the reservoir is the key to ensure the safe and stable operation of the reservoir. Three dimensional composite drainage network It is a material commonly used in reservoir bottom anti-seepage, so what are its applications in reservoir bottom anti-seepage?

1. Three-dimensional Composite drainage network Characteristics of

The three-dimensional composite drainage net is made of high-density polyethylene ( HDPE） It is made of polymer materials, has a three-dimensional structure, and is bonded with water-permeable geotextile on both sides. Therefore, it has very good drainage performance, tensile strength, compressive strength and corrosion resistance. Its unique drainage channel design allows water to be discharged quickly and effectively, which can avoid the damage to the impervious layer caused by accumulated water at the bottom of the reservoir.

2. The key role in seepage prevention at the bottom of the reservoir

1、Drain the standing water:

During the operation of the reservoir, a certain amount of water often accumulates at the bottom of the reservoir. If the accumulated water is not discharged in time, it will put pressure on the impervious layer and even lead to the rupture of the impervious layer. The three-dimensional composite drainage network is laid between the reservoir bottom and the impervious layer, which can discharge accumulated water, reduce the pressure of the impervious layer and prolong the service life of the impervious layer.

2、Blocking capillary water:

Capillary water is another difficult problem in seepage prevention at the bottom of the reservoir. It can penetrate into the impervious layer through tiny pores, which seriously affects the impervious effect. The three-dimensional structure of the three-dimensional composite drainage network can block the rising path of capillary water, prevent it from penetrating into the anti-seepage layer, and ensure the anti-seepage effect.

3、Enhance foundation stability:

The three-dimensional composite drainage network also has a certain reinforcement function. It can enhance the stability of the foundation and prevent the ground from settling or deforming due to water infiltration.

4、Protective impermeable layer:

The three-dimensional composite drainage network can protect the impervious layer from the damage of external factors. For example, it can prevent sharp objects from piercing the impervious layer and reduce the impact of mechanical damage and chemical corrosion on the impervious layer.

It can be seen from the above that the three-dimensional composite drainage network can effectively discharge accumulated water, block capillary water, enhance the stability of the foundation and protect the impervious layer from external factors.