Geotextiles have many functions, such as filtration, isolation, reinforcement, and so on. For example, filtering, isolation, reinforcement, and so on. Some customers use geotextile to filter, but sometimes they encounter situations where the filtering effect is not very good. So today, the editor will analyze what factors will affect the function of geotextiles.
1. There are many types and specifications of geotextiles, and there are also many classifications of the same type and specification. Different types and specifications of geotextiles also have significant differences in parameter indicators such as particle size, number of pores, and permeability strength. This will affect the filtering effect.
2. The nature and state of soil: Different types of soil can also affect the filtration effect. For example, the commonly used geotextile filtering materials are non-woven fabrics, but the soil is clay and sand, so the filtering effect of sand is definitely better than that of clay. Why? Because clay has adhesion, it is easy to stick to non-woven fabrics, thereby blocking the pores of non-woven fabrics.
3. Water flow state: Generally speaking, if the water flow is unidirectional, the filtration effect will be better, but if it is bidirectional or non laminar flow, the filtration will be more complex, and it can be imagined that the filtration effect is not good.
4. Structure does not meet the standard: The so-called construction does not meet the standard refers to the folding or overlapping of geotextiles due to improper operation in the construction project, which results in the inability to filter properly.
5. Other factors: The impact of other factors is relatively small, but if accumulated together, the impact cannot be underestimated, such as the pressure carried by geotextiles.
So, if there is a situation where the anti filtration effect is not good during the construction process, the above factors should be eliminated first. After elimination, if the anti filtration effect is still not good, it may be a quality issue with the geotextile.