Geocell is a three-dimensional grid formed by connecting polymer wide strips through ultrasonic welding and other methods. After unfolding, it forms a honeycomb shape and is lightweight. It is used in engineering construction to reduce erosion, stabilize soil, protect channels, and provide structural reinforcement for load support and soil retention.
The excellent engineering performance of geotechnical cells makes them play an important role in the field of engineering construction. The strength and modulus of the geocell are relatively high, and it is added as tensile reinforcement to the soil to form a flexible structural layer. It can disperse the concentrated load on the upper part, improve the strength and stiffness of the soil, reduce deformation, and improve the bearing capacity of the soft foundation. At the same time, it also has stable chemical properties such as acid and alkali resistance, suitable for different geological environments. Due to the advantages and characteristics of the geocell itself, its filling materials can be obtained locally, and it can expand and collapse freely during transportation, which can greatly reduce engineering costs.
1.Soft soil foundation reinforcement
On land with complex geological conditions, due to the low strength and high compressibility of soft soil, it is easy to cause foundation damage or settlement, which seriously affects the safety of engineering projects. Paving the geocell on the soft soil foundation and filling each cell with granular drainage material to form a stable cushion structure can effectively improve the defects of the soft soil foundation and increase the bearing capacity of the foundation.
2.Slope protection
Slope protection is another important application field of geocells. Geocells have good strength and toughness, and can form continuous units of filling materials with low cohesion, increasing the stability of dispersed filling materials. They have good protective effects on strengthening the stability of slope construction and reducing hydraulic erosion, helping to solve a series of ecological and engineering problems such as vegetation damage, soil erosion, landslides, and slope instability.
3.Road engineering construction
Geogrids can effectively prevent deformation of soil due to excessive load. When applied in road engineering, they can significantly improve the overall strength of the fill or the stability of the foundation, reduce the occurrence of diseases such as vertical and horizontal cracks and roadbed settlement. They play a significant positive role in ensuring the safe operation of roads and extending the service life of road engineering, especially for dealing with half filled and half excavated roadbed Roadbeds in windy and sandy areas play an important role.
4.Used for abutment back filling engineering
The fracture and uneven settlement of the bridge’s rear approach slab not only lead to vehicle jumping at the bridge head, but also accelerate the damage of the bridge abutment back, bridge head expansion joints, and joint pavement. The use of geogrid cells at the back of the abutment can utilize the locking and reinforcement effects of the geogrid cell holes on the soil, increase the friction, locking, and impedance effects of the soil, constrain the lateral movement and settlement of the soil, effectively prevent the displacement and settlement of the soil, improve its stability, and reduce the deformation difference caused by the two different materials of the abutment concrete and the backfill, effectively improving the phenomenon of bridge head jumping and uneven settlement of the soil.
Quality inspection
Quality testing of geotechnical cells to ensure that their various parameters meet relevant technical requirements is an important link in controlling the quality of geotechnical cells. Due to the fact that the cells are the foundation of the product, during the testing process, although some testing parameters are for the quality of the cells, they are still necessary for controlling the overall product quality.
When conducting size inspection, suitable measuring tools must be selected for measuring the dimensions of different parts. For example, the maximum length of the unfolded edge is measured with a tape measure, the welding distance and cell height are measured with a steel ruler, and the thickness is measured with a micrometer. The accuracy of each measuring tool should meet relevant requirements.
The detection of Vicat softening temperature is also important for geotechnical cells. It can be tested according to the A50 method in the four methods of “Determination of Vicat softening temperature (VST) of thermoplastic plastics” (GB/T 1633-2000), which uses a force of 10N and a heating rate of 50 ℃/h. During sample preparation, at most three specimens should be directly stacked together to achieve the required thickness of the specimens, and the state of the specimens should be adjusted according to standard specifications during testing.
According to different standards, there may be differences in testing items and specific testing methods, which are directly related to the specific application fields of geotechnical chambers. Therefore, quality testing of geotechnical chambers should also be based on reality. We insist on using scientific methods to strictly control quality. If you have any needs, please click on the products on the website for consultation. Or send detailed specifications and engineering information, and we will have professional staff to provide you with free services
Post time: Sep-13-2023