Geocell Reinforced Embankment

Geocell Reinforced Embankment

Reinforced sand cushion is a method of shallow analysis and processing of soft soil foundation through geocells. The geocell makes the widened part of the expressway embankment and the existing road more closely connect to form a whole, reducing the uneven settlement of the new and old...
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Reinforced sand cushion is a method of shallow analysis and processing of soft soil foundation through geocells. The geocell makes the widened part of the expressway embankment and the existing road more closely connect to form a whole, reducing the uneven settlement of the new and old embankment, and applying the finite element analysis of the geocell when paving the subgrade at different levels at the junction of the new and old subgrade The lateral displacement, vertical settlement and large differential settlement of each key point on the top surface.


Geocell reinforced embankment can reduce the lateral displacement and differential settlement of the subgrade, and the effect is good when it is laid on the base and the top of the foundation, which can improve the overall rigidity of the subgrade and the bearing capacity of the foundation.


The settlement of the foundation surface can be measured using data from different hydraulic test management systems. The section sinker is arranged on the bottom of the sand cushion; the embankment base treatment pressure is mainly measured by a steel string earth pressure cell, and each part is symmetrical in section Arrange 5 measuring points on the center line of the embankment.


Laying a thin layer of sand at the bottom of the embankment to promote drainage and consolidation of the foundation is one of the most commonly used treatment methods for soft soil foundations. The use of geosynthetics as a reinforcement to lay in the sand cushion to form a reinforced sand cushion is a soft soil foundation reinforcement measure that has been widely used in recent years. Reinforced sand cushion can effectively improve the stability of soft soil foundation, which has been confirmed by engineering practice.


After years of operation, the old roadbed in the soft soil area highway expansion project has been reinforced, the strength has been improved, and the remaining settlement is very small. Although the new widened roadbed is generally used in composite foundation methods such as cement mixing piles to reinforce the soft soil roadbed, due to the roadbed reinforcement If the treatment time is short, large post-construction settlement may still occur, and uneven settlement of new and old roadbeds is likely to occur.


In order to control the uneven settlement of the new and old roadbeds, as the roadbed avoids uneven settlement due to longitudinal cracks that damage the expansion of the pavement, the roads in the geocell style of the reinforced embankment are usually widened and one or more layers are laid to expand the new geocell The room fills the embankment.


Geocell reinforced embankment is a new type of enhanced quality subgrade geotechnical base material, and the application of Geocell reinforced embankment is becoming more and more extensive.


Geocell Reinforced Embankment


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