The geocell is a kind of three-dimensional net and compartmentalized configuration, which is formed by high strength welding the reinforced HDPE sheet material .
The geocellgeocell is formed by strengthening the HDPE sheet material, which is formed by the high strength welding, and the soil chamber is welded by ultrasonic needle. Because of the engineering needs, and some punch on the mebrane
There are dozens of kinds of specifications about the specification of the geocell, it depends on the projects, and there are some requirements for the thickness, height and pitch of weld of the geocell.
The reason why the geotechnical grid has the remarkable effect is concerned by the engineering community, but also it should start from its basic principles. It is called the a honeycomb three-dimensional constrained system in the foreign literature to describe the principle, it can significantly improve ordinary filling materials in bearing and worm eaten control application performance in a large range. Its key principle is three-dimensional limit system. As we all know, when the vehicle travelled in the desert, it will press the two deep ruts, and the pressed portion is deeply subsided, the both sides of the track will be upheavaled highly. if the rear vehicles continue to go on along the rut, the subsidence will sink further, part of the upheaval will further uplift, until the part of the uplift rub to car chassis, subsidence of rutting buried half a wheel, and unable to move forward. The reason is that when the outer charge acts on the surface of the foundation, on the basis of Prandtl theory and Taylor theory: Under the action of concentrated load, the active zone 1 is pressed down, and the force is transferred to the two sides of the transition zone 2, the transition zone 2 is passed to the passive area 3.
The geocell is a kind of three-dimensional net and compartmentalized configuration which is made by welding or hot melting a plastic sheet material that called HDPE. It is used for foundation reinforcement to strengthen the bearing capacity of foundation. There are many other uses. High strength geocell refers to the composition of geocell reinforced plastic sheet material, which is made by stretching process (like an ordinary steel should be drawed to enhance the intensity), the plastic plate is stretched very thinly and the molecular structure is in the directional arrangement, which greatly improves the tensile strength, so it is called high strength geogrid. Since high tension plastic can not be used for heat fusion, the connection is the use of riveting. It is characterized by a large increase in the tensile strength, but the strength of the other direction is reduced a lot. It should be noted that the tensile strength is the unit area of the pulling force, even if the tension is not improved, the corresponding area is reduced and its strength is also improved a lot. Therefore, the so-called high strength geocell refers that the tensile strength of its material is very high, it is not necessarily the high tensil force.
