Geocell manufacturers honeycomb cell spot slope protection cell grass slope protection honeycomb geocell

Description

Geocell is a three-dimensional mesh cell structure formed by high strength welding of reinforced HDPE sheet material. Generally by ultrasonic needle welding. Due to engineering needs, some holes are drilled on the diaphragm.

Chinese name

The geocell

Set the righteous

A three-dimensional mesh cell structure is formed by high strength welding of HDPE sheet material

features

1, with flexible expansion, transport can be folded, construction can be stretched into a network, filled with soil, gravel, concrete and other loose materials, constitute a strong lateral limit and stiffness of the structure.

2, light material, wear resistance, stable chemical properties, light oxygen aging resistance, acid and alkali resistance, suitable for different soil and desert soil conditions.

3, high side limit and anti-slip, anti-deformation, effectively enhance the bearing capacity of the roadbed and disperse the load.

4, change the geocell height, welding distance and other geometric dimensions to meet different engineering needs.

5, flexible, small transport volume; Convenient connection and fast construction speed.

Basic Principles

The reason why the geocell has the excellent effect and attracts the attention of the engineering field should start from its basic principle. In the description of its principle in the foreign literature, it is described as "a honeycomb three-dimensional confinement system, which can significantly improve the performance of ordinary filling materials in a large range of bearing and insect erosion control applications." The key principle is the three-dimensional constraint. Everyone knows that when a car drives in the desert, it makes two deep ruts. The part of the car that is pressed down is deep, and the sides of the ruts are raised high. If the car behind continued to follow the rut, the sink would sink further and the uplift would rise further, until the uplift rubbed against the undercarriage and the rut buried most of the wheel, preventing it from moving forward. The reason for this is that when external loads act on the ground surface, according to Prandtl theory and Taylor theory, under the action of concentrated loads, the active zone 1 will be compressed and sink, and the force will be decomposed to both sides and transmitted to the transition zone 2, and the transition zone 2 will be transmitted to the passive zone 3, and the passive zone will be deformed and uplifted without any restriction.

Product Features:

1, flexible, transport can be folded, construction can be stretched into a network, filled with soil, gravel, concrete and other loose materials, constitute a strong lateral limit and stiffness of the structure.

2, light material, wear resistance, stable chemical properties, light oxygen aging resistance, acid and alkali resistance, suitable for different soil and desert soil conditions.

3, high side limit and anti-slip, anti-deformation, effectively enhance the bearing capacity of the roadbed and disperse the load.

4, change the geocell height, welding distance and other geometric dimensions to meet different engineering needs.

5, flexible, small transport volume, convenient connection, fast construction speed. That is to say, once the load acts on the subgrade, the active area of the hitch will be formed under the load, and it will extrude through the transition area to make the passive area bulge. In other words, the load bearing capacity of the foundation is determined by the shear force along the slip line and the forces in the three regions of active, transitional and passive movement. Not only can the real process of the above principle be clearly experienced on the sand base, but also can be found on the soft foundation of the road model, but its formation rate is slower than the change in the sand. Even better roadbed materials can not avoid its lateral movement. General highway subgrade is several meters above the ground, water is not easy to turn, but the long-term settlement still exists. As for the reasons, rainwater infiltration, material loss and base subsidence are part of the reasons. The lateral displacement of materials to both sides of the subgrade section is undeniably another very important reason for the subgrade pavement under the long-term rolling and vibration force of the wheel load. Take all levels of highway in our province as an example, there are in the main lane of the road can obviously feel the road has been pressed out of an "S" groove belt. Some expressways are no exception. The car bump in the lane is obviously stronger than the feeling of driving in the overtaking belt, especially in the bridge connection section (commonly known as "bridge jump"). This kind of gully subgrade settlement is the typical transverse slip of subgrade material.

There is no need to mention the methods of conventional treatment of roadbed in engineering. Its purpose is to improve the shear and friction resistance of foundation materials and reduce or delay the ability of foundation materials to move under the action of load pressure or vibration. Therefore, there must be many harsh restrictions on materials in engineering. The cost of purchasing materials and transporting them make up a large part of the overall project cost. The use of geocels, on the other hand, allows for the use of local or nearby materials, even materials that would not normally be used, thus significantly reducing material acquisition and transportation costs. Why is that? The bearing capacity of geocels shows that under concentrated loads, the active zone 1 will still transfer the force to transition zone 2. However, due to the lateral restriction of lattice walls, the reaction force of adjacent lattice walls, and the transverse resistance formed by the friction force between the filler and lattice walls, the transverse movement tendency of transition zone 2 and passive zone 3 is inhibited, so that the bearing capacity of the subgrade can be improved. The test results show that the apparent cohesion of medium dense sand can be increased by more than *0 times under the restriction of cell. Obviously, if the shear resistance of the subgrade material can be increased or the movement of the three areas can be inhibited, the bearing capacity of the foundation can be improved. This is the restriction principle of geocell. As a new type of synthetic material, geocell started a lot of research and development work in the late ***0s and early ***0s in Europe and the United States and other countries, and the test and field application proved that it has a great effect on improving the dynamic load bearing of general fill and subgrade protection. In the early ***0s, on the basis of absorbing foreign advanced experience, we began to develop and study the geocell, and made a great breakthrough in the field of road base bed disease improvement and the application of fixed and loose media. With the further understanding of the characteristics of geocell, it has been found that it has the irreplaceable advantages of other geomaterials (geotextiles, geomembranes, geogrates, geomold bags, geonets, etc.), which makes it have a unique application prospect in many fields.