Plastic drainage board It is a material commonly used in foundation treatment, roadbed reinforcement, basement waterproofing, roof greening and other projects. What are its drainage principles?
一. Plastic Drainage plate The basic structure and characteristics of
1、Plastic drainage board is made of polymer materials (such as polyethylene, polypropylene, etc.) with drainage function. Its structure generally consists of two parts: a drainage core board and a water filter layer. The drainage core board is covered with criss-crossing drainage channels, which can form a three-dimensional drainage network, while the water filter layer covers the surface of the core board, which can prevent soil particles from blocking the drainage channels.
2、Plastic drainage board has the advantages of light weight, high strength, corrosion resistance, aging resistance and good water permeability. Its drainage channel design is reasonable, the water cross section is large, and the drainage efficiency is high, which can quickly discharge the water in the soil and accelerate the consolidation and stability of the foundation.
二. Drainage principle of plastic drainage board
1、Osmosis: Under the action of soil pressure, the moisture in the soil enters the drainage channel of the plastic drainage board through osmosis. The design of the water filter layer can prevent the blockage of soil particles and ensure the smooth drainage channel.
2、Gravity drainage: With the continuous infiltration of water, the water level in the drainage channel gradually rises. Under the action of gravity, the moisture flows up the drainage channel and eventually discharges the surface or into a preset drainage system.
3、Accelerated consolidation: During the drainage process, water in the soil is continuously discharged, resulting in reduced soil porosity and closer contact between soil particles. In this process, the consolidation speed of soil is accelerated and the stability of foundation is improved.
4、Adjust the water level: The plastic drainage board can also adjust the size and layout of the drainage channel according to the needs of the project to realize the adjustment of the groundwater level. This function is very important in basement waterproofing, roof greening and other projects.
三. Application scenarios and advantages of plastic drainage boards
1、Efficient drainage: Plastic drainage board has very good drainage performance, which can quickly drain water from the soil and accelerate the consolidation and stability of the foundation.
2、Prevention of blockage: The water filter layer can prevent the blockage of soil particles and ensure the unimpeded drainage channel.
3、Simple construction: The plastic drainage board is light in weight, high in strength, easy to transport and construct, and can shorten the construction period.
4、Environmental protection and energy saving: Made of polymer materials, non-toxic and harmless, can be recycled and reused, and meets environmental protection requirements.
5、Economical and practical: Compared with traditional drainage methods, plastic drainage boards have lower cost and higher cost performance.
Post time: Feb-27-2025
