Techniques of Soil Improvement

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Techniques of Soil Improvement


Soilimprovement is to improve its engineering performance such as strength, reduced compressibility, reduced permeability, or improved ground water condition.

There are various techniques used for the improvement of the soil based on the construction activity and type of soil. The soil improvement techniques are the following.

Ø  Surface Compaction: This is process to make soil densify. Any soft and loose site needs a compacted base for lying the structure. All conventional rollers like smooth wheel, rubber-tyred, sheep foot, vibratory and grid rollers can be used.

Ø  Drainage Methods: When the water presence increase that will create pore water pressure and decrease the shear strength so ground water has to be controlled. Heavy inflow of water can cause erosion. So certain methods will have to be adopted to control ground water.

Ø  Vibration Methods: Vibration methods can be effectively used for rapid densification of saturated non-cohesive soils.Some of the mostly adopted vibration methods are blasting, Vibrating probe, Vibratory rollers, Vibro-displacement Compaction Piles, Vibrofloatation, heavy Tamping etc.

Ø  Pre compression and consolidation: This method is used to consolidate the soil before construction. Preloading and Surcharge Fills, Vertical Drains, Dynamic Consolidation, Electro osmotic Consolidation etc. are the various techniques should be adopted.

Ø  Grouting and Injection: This can control of ground water during construction. It is used in soil strengthening to reduce lateral support requirements.

Ø  Chemical Stabilisation: Chemical Stabilizations reduce permeability of the soils, improve shear strength, increase bearing capacity, decrease settlement and expedite construction.

Ø  Soil Reinforcement: Soil Reinforcement is in the form of a weak soil reinforced by high-strength thin horizontal membranes. A large variety of materials such as rubber, aluminum and thermoplastics have been used successfully.

Ø  Geo textiles and Geo membranes: Geotextiles are used as separators, filters, Drains, reinforcement, geomembranes etc.

Ø  Other Methods: Other methods include Thermal methods, Moisture barriers, Prewetting, addition or removal of soils, etc.



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Blog written by

Shruti Doshi
Technical Officer – Sanghi Cement & Blogger
shruti.doshi@sanghicement.com
shrutidoshi.1492@gmail.com

Blog Managed by

Nirav Pandya
Digital Marketing Officer – Sanghi Cement
nirav.pandya@sanghicement.com

 

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