How do geogrids improve embankment stability?

Geogrid adopts two-way tensile (GSL) geogrid, with longitudinal ultimate tensile strength of not less than 25KN/m per linear metre, transverse ultimate tensile strength of not less than 35KN/m, and elongation of not more than 13%; the geogrid mesh size is 30mm x 40mm, and the rib cross-section is rectangular.

Advantages of geogrids:

1.The large tensile strength of the geogrid, it can increase the stability of the embankment

2.The existence of the grid mesh restricts the lateral movement of the soil, forming a good embedded locking effect, so that the soil has a good overall shear resistance

3. The geogrid has a certain degree of stiffness so that the load above is diffused, improving the bearing capacity of the foundation.

With the deepening of the understanding of the mechanism of geogrid in the soil, the creep performance of geogrid under constant load has gradually attracted attention. After creep tests on geogrids of different materials and processing methods with the same quality-controlled tensile strength, it was found that different grids showed different test results, so the creep strength of geogrids under constant load within a certain strain requirement, at a certain temperature and for a certain length of time began to be highly valued, because creep strength is a more intuitive reflection of The creep strength is a better visual representation of the practical requirements of a geogrid than the quality control tensile strength. However, the geogrid creep test only considers the decay of the strength of the grid during long-term loading, whereas construction, fillers and the environment can also have an impact on the strength of the grid during actual use. Therefore, construction damage from the actual use of fillers, the impact of soil pH, the impact of soil micro-organisms and the impact of geogrid connectors must also be considered. After considering these factors, we can finally determine our design strength, and then use this design strength to design the reinforced structure body. The safety of the design is also checked by using this design strength to see if its internal stability, external stability and overall safety factor meet the requirements to ensure the safety of the reinforced structure body.

Any more questions,please feel free contact us.

Angela Gao

whatsapp:+86-18095658976

Email:angela@zhongloo.com

www.zlgeo.com