**Soft Water Permeable Pipe Construction Method**
The soft water permeable pipe is a highly efficient drainage system designed to collect and channel groundwater effectively. It consists of a high-strength steel wire ring that serves as the structural support, surrounded by a multi-layered wrapping material that allows water to pass through while filtering out soil particles and protecting the internal structure. The steel wire undergoes a phosphoric acid anti-rust treatment to enhance its durability and is then coated with a layer of PVC to prevent oxidation and corrosion from exposure to moisture and air. The outer covering of the pipe is composed of three distinct layers: the innermost layer is a water-permeable layer made from high-strength nylon yarn, which allows water to flow into the pipe. The middle layer is a non-woven geotextile filter, acting as a barrier to prevent fine soil particles from entering the system. The outermost layer is a protective coating, typically made of the same high-strength nylon material used in the inner layer, ensuring long-term performance and resistance to mechanical damage. **Construction Process**
1. **Site Preparation**: Begin with dewatering the area to lower the groundwater level. 2. **Sheet Pile Installation**: Drive sheet piles to provide temporary support for the excavation. 3. **Excavation**: Carefully excavate the foundation pit according to the design specifications. 4. **Pebble Cushion**: Lay a layer of pebbles at the base to facilitate drainage and prevent clogging. 5. **Geotextile Layers**: Install geotextile fabric over the pebble cushion to act as a filtration medium. 6. **Laying the Permeable Pipes**: Place the soft water permeable pipes in the designated location, ensuring proper alignment and spacing. 7. **Backfilling with Pebbles**: Fill the surrounding area with pebbles to maintain stability and prevent soil intrusion. 8. **Capping**: Cover the system with a final layer of soil or other suitable material to complete the installation. **Key Construction Considerations**
- **UV Protection**: The nylon yarn used in the inner layer should be protected from direct sunlight during construction to avoid degradation. - **Avoid Overloading**: Do not apply any heavy pressure or allow machinery to drive over the pipe until it is fully backfilled. - **Compaction Guidelines**: When compacting the backfill material, ensure the pipe is covered with at least 60 cm of material before using vibration equipment. - **Joint Connections**: For connecting sections of the pipe, simply cut the corresponding steel rings and secure them with a nylon rope for a quick and reliable connection. **Functional Characteristics**
1. **Efficient Water Collection**: Utilizes pressure principles to draw water from the surrounding soil into the hollow core of the pipe. 2. **Full Permeability**: The entire structure is designed for continuous water flow, eliminating dead zones and ensuring uniform drainage. 3. **High Filtration Efficiency**: The geotextile or sand layer prevents soil particles from entering the system, maintaining long-term functionality. 4. **Durable Structure**: The steel wire is coated with PVC and water-permeable material, providing excellent resistance to flattening and external pressure. 5. **Flexibility**: Can be bent and adapted to uneven surfaces, making it ideal for complex geological conditions. 6. **Strong Tensile Strength**: Woven high-strength fibers in both directions make the pipe resistant to tearing and capable of withstanding heavy soil loads. 7. **Corrosion Resistance**: Tested in acidic and alkaline environments, showing no significant degradation in appearance or performance. 8. **Easy Installation**: No special joints required—simple tools like a vise, utility knife, and nylon rope are sufficient for assembly. 9. **Cost-Effective**: Offers better economic value and longer lifespan compared to traditional drainage systems. 10. **Lightweight and Portable**: Designed to be rolled up for easy transport and on-site installation, reducing overall construction costs. **Raw Material Properties**
- **Steel Wire**: Made from high-strength spring steel, treated with phosphoric acid for rust prevention. - **Filter Layer**: A non-woven geotextile that acts as a primary filtration medium. - **Water-Permeable Layer & Outer Coating**: Constructed from high-strength multifilament nylon yarn (weft) and special synthetic fibers (warp), ensuring durability and permeability. This soft water permeable pipe is an advanced solution for underground drainage, offering a combination of efficiency, durability, and ease of use in various construction scenarios.
In the organic synthesis industry, urea is used to produce high polymer synthetic materials. Urea formaldehyde resin is used in the production of plastics, paints, and adhesives, and can also be used as a raw material for melamine resin in the petroleum industry. Urea is used as a dewaxing agent in the petroleum refining process. In the textile industry, urea is used to manufacture pulse containing polymers as a raw material for one of the synthetic fiber varieties, Eulon.
Urea Corrosion Inhibitor,Urea Powder,Agricultural Large Particle Urea
Linyi Lanshan Weipu Rubber Factory , https://www.weipuwood.com