Q:Geosynthetics direct shear instrument reference standards which

ISO.1, GB / T.1, ASTMD5321, JTGE50T1129, BiaozhunJiTuan-2017, SL / T235-1999. hope this helps.

Q:What are the key factors to consider when selecting a geotextile?

The key factors to consider when selecting a geotextile are the intended application, the type and characteristics of the soil, the required strength and durability, and the desired drainage and filtration properties. Additionally, factors like installation methods, project budget, and environmental considerations should also be taken into account.

Q:Can geotextiles be used in road construction?

Yes, geotextiles can be used in road construction. They are commonly used as a part of the road pavement system to enhance the performance and durability of the roads. Geotextiles provide reinforcement, separation, and filtration functions, helping to prevent the mixing of different soil layers, improving load distribution, and reducing the potential for pavement damage.

Q:Seepage geotextile and impervious geomembrane

It is generally believed that the individual geotextile does not have the anti-seepage effect, the main assessment index is the permeability coefficient, the general geotextile coefficient is higher than the ordinary soil, about 0.01-0.001 look, but the geotextile and rubber, Asphalt, plastic combination will form a water-impermeable composite, anti-seepage effect increased by 10 times, and asphalt, rubber combined into a waterproofing membrane such as sbs, etc., and plastic is generally polyethylene, polyvinyl chloride, eva (standard name is Geomembrane) is a combination of impermeable geomembrane or composite geomembrane, because the composite white geotextile outside the protective effect, so the project is also called impermeable geotextile. Therefore, the two are essentially not much difference, but the argument is different. Waterproof board is also called geomembrane, customary to> 0.8mm thick geomembrane called waterproof board, & lt; 0.8mm called geomembrane, it is based on high molecular polymer as raw material made of impermeable material , Divided into homogeneous waterproof board and composite waterproof board

Q:What is the role of geotextiles in soil reinforcement?

Geotextiles play a crucial role in soil reinforcement by providing strength and stability to the soil. They are used as a barrier or separator between different soil layers, preventing mixing and maintaining their individual characteristics. Geotextiles also help in distributing the load and reducing the potential for settlement or erosion. Additionally, they aid in filtration, allowing water to pass through while retaining soil particles, thus preventing clogging and maintaining the overall integrity of the soil structure.

Q:How do geotextiles help in preventing soil liquefaction?

Geotextiles help in preventing soil liquefaction by providing stability and reinforcement to the soil. They act as a barrier and restrict the movement of soil particles, thereby reducing the potential for liquefaction. Additionally, geotextiles enhance the drainage capacity of the soil, allowing water to flow through and preventing the buildup of excess pore pressure, which is a major factor leading to liquefaction.

Q:What are the considerations for geotextile selection in coastal engineering projects?

When selecting geotextiles for coastal engineering projects, several factors should be considered. These include the intended application, site conditions, longevity requirements, and environmental considerations. The geotextile's strength, permeability, and durability must align with the project's specific needs to effectively control erosion, stabilize sediment, or protect against wave action. Additionally, factors such as UV resistance, resistance to biological degradation, and compatibility with other materials used in the project should be evaluated to ensure long-term success and minimize negative impacts on the coastal ecosystem.

Q:What are the design considerations for geotextile applications?

Some of the key design considerations for geotextile applications include the type of geotextile material to be used, the required strength and durability, the desired permeability and filtration properties, the potential for installation damage or degradation, and the compatibility with other materials and environmental conditions. Additionally, factors such as site-specific soil characteristics, water flow rates, loadings, and the intended function of the geotextile also need to be taken into account during the design process.

Q:What kind of geotextiles are used to filter the geotextile?

Short geotextile and filament geotextile

Q:Who knows geotextile, how to sew, the best video

Sewing machine can be sewn, you can also use hot air gun hot melt, I am specializing in the production of geotechnical materials