Composite drainage network It is a material commonly used in underground drainage system, road foundation, green belt, roof garden and other projects.
1. Overview of composite drainage network
The composite drainage net is made of high-density polyethylene ( HDPE） Made of high-quality materials and other high-quality materials, it has excellent properties such as corrosion resistance, high temperature resistance and anti-aging. Its three-dimensional spatial grid structure can evenly distribute drainage holes, which can improve drainage efficiency, and has a very good anti-seepage effect, which can protect the stability of underground structures.
2. Construction method of composite drainage network
1、Direct laying method
This is the most common construction method.
（1）Clean up the construction area to ensure that the base layer is flat, dry and free of debris.
（2）According to the design requirements, the laying position and shape of the drainage net are marked on the foundation.
（3）Lay the composite drainage net flat on the marked position to ensure that the net surface is smooth and wrinkle-free.
If necessary, you can use a rubber hammer to gently tap the mesh surface to make it tightly bond with the base layer. For projects with overlap requirements, overlap treatment should be carried out according to the design requirements to ensure that the length and method of overlap meet the specifications.
2、Fixed installation method
In some situations where higher stability is required, the fixed installation method can be used. This method is based on laying the drainage net, and uses nails, layering and other fixing methods to firmly fix the drainage net on the base layer to prevent it from shifting or sliding. When fixing, be careful not to damage the mesh surface, and ensure that the fixing is firm and reliable.
3、Connection and closure processing
The parts that need to be connected, such as the joints of the drainage net, should be connected with special connectors or adhesives to ensure firm connections and good sealing. It is also necessary to carefully treat the closing area to ensure the appearance quality and waterproof performance. Connection and closing treatment are the key links to ensure the unimpeded flow of the entire drainage system.
4、Backfill and tamping
After the drainage net is laid and fixed, the backfill operation is carried out. The backfill soil should be evenly spread in the excavation and compacted in layers to ensure that the fill soil is tight and tightly integrated with the drainage network. During the backfilling process, it is necessary to avoid damage to the drainage network. After the backfill is completed, the backfill soil should be compacted to improve the stability of the foundation.
5、Drainage effect test
After the construction is completed, the drainage effect test should be carried out to ensure that the drainage system is unimpeded. During the test, the drainage situation can be observed by simulating rainfall, etc. If there is any abnormality, it should be dealt with in time.
3. Construction precautions
1、Construction environment: Keep the base layer dry and clean, and avoid construction in rainy or windy weather. It is also necessary to protect the base layer from mechanical damage or man-made damage.
2、Material protection: During transportation and construction, it is necessary to protect the composite drainage net material from damage or contamination. It should also be stored and kept according to the requirements of the specification.
3、Construction quality: Construction shall be carried out in strict accordance with the design requirements and construction specifications to ensure the laying quality and use effect of the composite drainage network. Strengthen quality inspection and acceptance, and discover and deal with problems in time.
Post time: Dec-26-2024
