A STUDY ON GROUND IMPROVEMENT USING DEEP VIBRO TECHNIQUE
Abstract
Soil improvement is the broadest sense in alteration of property of the soil to increase its engineering performance. The result of application of ground improvement technique may increase the strength, reduces compressibility and permeability and improves the ground condition by controlling the seepage and liquefaction of soil . The type and selection of improvement techniques can be considered by factors such as type of soil, depth of treatment, type of structure, distribution of load, availability of materials, settlement factors, properties of soil and environmental considerations etc. The techniques which increases the ground condition includes compaction, vibration, drainage methods, stabilization techniques, soil reinforcement and application of geotextiles and geomembranes. In this paper we are going to see how the vibration techniques helps in improvement of ground condition in effective way. Vibration techniques includes both vibro compaction and vibro displacement technique. Vibro compaction methods are effectively used in rapid densification of saturated non cohesive soils. This method produces shock waves on loose deposit materials and reduces the liquefaction and settlement of soils. The excess pore water pressure is also reduced by this technique. On the other hand, vibro displacement method consists of active displacement of soil followed by vibration and backfills the pores beneath by soil compaction. In case of construction to be done above the coarse grained soils with less fines, this method can be implemented to improve the ground and soil. This paper on following briefly explains the vibro technique and its applications in ground improvement.
Author
R.Oviya , Manikandan
Download
