The drainage board is also called plastic drainage belt, which has many shapes, such as wave type, harmonica type, etc. The drainage board is an advanced new material for soft soil foundation and super soft foundation reinforcement developed according to the geological conditions of our country, combining the advantages of foreign brand drainage boards. It has the characteristics of large single hole water discharge section, smooth drainage, light weight, high tensile and compressive strength.
In the middle of the drainage board is the extruded plastic core board, which is the skeleton and channel of the drainage belt. Its cross section is in parallel. The two sides are wrapped with non-woven geotextile as the filter layer. The core belt plays a supporting role and discharges the water infiltrated into the filter layer upwards. It is a good vertical for the soft foundation treatment of saturated cohesive and miscellaneous fill such as silt, silt soil, alluvial fill, etc. by drainage consolidation method Straight through Road, greatly shortening the consolidation time of soft soil.
Drainage board Working principle: the drain board is inserted into the soft soil foundation with a board inserting machine. Under the action of the upper preloading load, the void water in the soft soil foundation is drained from the drain board to the sand layer or horizontal plastic drain paved on the upper part Water pipe Medium, by other Local drainage will accelerate the consolidation of soft foundation. In soft soil foundation treatment, the function design and construction equipment of drainage board are basically the same as those of sand bag well.
Drainage board*** Application: soft foundation treatment projects in expressway, * * *, airport, power plant, storage yard, port, reclamation, sewage treatment plant, landfill, reclamation, water conservancy and hydropower, wharf construction and other projects at home and abroad. For example, Tianjin, Lianyungang, Shanghai, Hangzhou, Ningbo, Wenzhou, Fuzhou, Xiamen door , Zhanjiang, Guangzhou and other coastal areas, as well as Kunming, Wuhan, Nanjing and other inland areas.
