File Name: difference between compaction and consolidation of soil .zip
All Rights Reserved. The occurrence and distribution of soils in nature varies from location to location. The type of soil depends on the rock type, its mineral constituents and the climatic regime of the area. Soils are used as construction materials or the civil engineering structures are founded in or on the surface of the earth. Geotechnical properties of soils influence the stability of civil engineering structures. Most of the geotechnical properties of soils influence to each other. In this paper, different geotechnical properties of soils such as specific gravity, density index, consistency limits, particle size analysis, compaction, consolidation, permeability and shear strength and their interactions and applications for the purpose of civil engineering structures have been discussed.
In geotechnical engineering , soil compaction is the process in which stress applied to a soil causes densification as air is displaced from the pores between the soil grains. When stress is applied that causes densification due to water or other liquid being displaced from between the soil grains, then consolidation , not compaction, has occurred. Normally, compaction is the result of heavy machinery compressing the soil , but it can also occur due to the passage of, for example, animal feet. In soil science and agronomy , soil compaction is usually a combination of both engineering compaction and consolidation, so may occur due to a lack of water in the soil, the applied stress being internal suction due to water evaporation  as well as due to passage of animal feet. Affected soils become less able to absorb rainfall , thus increasing runoff and erosion. Plants have difficulty in compacted soil because the mineral grains are pressed together, leaving little space for air and water, which are essential for root growth.
Consolidation and compaction are totally different process. Though both process results a reduction in volume, it is important to know the.
Compaction Compaction purposes and processes Compaction as a construction process Objectives of compaction Factors affecting compaction Types of compaction plant Compaction is a process of increasing soil density and removing air, usually by mechanical means. The size of the individual soil particles does not change, neither is water removed. Purposeful compaction is intended to improve the strength and stiffness of soil. Consequential or accidental compaction, and thus settlement, can occur due to vibration piling, traffic, etc.
Fowler, C. A 3-D theory of groundwater flow and consolidation that allows for compressibility of the soil or sediment matrix is that due to Biot However, this theory is inapplicable to virgin consolidation tests, where the deformation of the soil along the critical state surface is accomplished by elastic—plastic flow. In fact, Biot's model cannot even be applied to overconsolidated soils where the deformation is elastic, as it does not conserve the mass of the solid.
The term consolidation describes the process by which a soil mass decreases in volume in response to either natural or man-made loadings.Reply
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Consolidation is a natural process where soil below the building and other structure compacted by the transferred load to the soil through the provided foundation.Reply
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