Plastic drainage net
Short Description:
Plastic drainage net is a kind of geosynthetic material, usually composed of a plastic core board and a non – woven geotextile filter membrane wrapped around it.
Plastic drainage net is a kind of geosynthetic material, usually composed of a plastic core board and a non – woven geotextile filter membrane wrapped around it.
Functions and Characteristics
Excellent Drainage Performance: It has high longitudinal and transverse drainage capabilities, which can quickly collect and guide groundwater, seepage water, etc., and quickly lead the water flow to the designated drainage system. It can effectively prevent diseases such as softening, sinking and mud - pumping of roadbeds due to water accumulation.
Good Filtration Function: The filter membrane can prevent soil particles, impurities, etc. from entering the inside of the drainage net, avoiding the clogging of the drainage channel, thereby ensuring the long - term smoothness of the drainage system.
High Strength and Durability: Both the plastic core board and the geotextile filter membrane have certain strength, which can bear a certain amount of pressure and tension, and are not easy to deform under high loads. They also have good corrosion resistance and anti - aging properties, with a long service life.
Convenient Construction: It is light in weight and small in volume, which is convenient for transportation and installation, and can greatly shorten the construction period and reduce the construction cost.
Application Fields
Soft Foundation Reinforcement Projects: It is widely used in soft foundation reinforcement projects such as sluices, roads, docks and building foundations, which can accelerate the consolidation of soil and improve the bearing capacity of the foundation.
Landfill Projects: It can be used for the groundwater drainage layer, leakage detection layer, leachate collection and drainage layer, landfill gas collection and drainage layer and landfill surface water collection and drainage, etc., effectively solving the drainage and anti - seepage problems of landfills.
Transportation Infrastructure Projects: In railway and highway transportation infrastructure, it can be laid on the subgrade foundation or under the ballast to drain the rising groundwater or road surface seepage water, reinforce the embankment foundation or ballast, improve its bearing capacity, eliminate frost heave, and prolong the service life of roads and railways.
Tunnel and Retaining Wall Projects: It can be used as the plane drainage layer of tunnels or retaining wall backs, timely draining the mountain seepage water or the water behind the retaining wall, eliminating the water pressure applied to the anti - seepage liner, and preventing structural damage and leakage.
Landscaping Projects: It is used in the drainage system of garden green spaces, which can effectively intercept suspended solids in sewage, prevent rainwater runoff from polluting the environment, and maintain the appropriate soil humidity required for plant growth.
Construction Key Points
Site Preparation: Before construction, the site needs to be cleaned and leveled, and debris, stones, etc. should be removed to ensure that the site surface is flat, so as to facilitate the laying of the drainage net.
Laying Method: According to different engineering requirements and site conditions, it can be laid in a flat - laying, vertical - laying or inclined - laying manner. When laying, attention should be paid to the direction of the drainage net and the lap length to ensure the smoothness of the drainage channel and the firmness of the connection.
Fixing and Connection: During the laying process of the drainage net, special fixing tools need to be used to fix it on the base layer to prevent it from shifting or sliding. At the same time, adjacent drainage nets should adopt appropriate connection methods, such as lapping, stitching or hot - melt connection, to ensure the tightness and stability of the connection part.
Protective Layer Setting: After the drainage net is laid, a protective layer usually needs to be set above it, such as laying geotextile, sand layer or concrete layer, etc., to protect the drainage net from being damaged by external factors, and it also helps to improve the drainage effect.
