factors affecting consolidation of soilfactors affecting consolidation of soil

It is a time-dependent process and much slower than the primary consolidation process. Lime needs to be worked into the soil thoroughly and it needs water to react. More generally, consolidation refers to the process by which soils change volume in response to a change in pressure, encompassing both compaction and swelling. Each pressure increments is maintained for a period of 24 hrs. The soil mass is considered semi-infinite. Sivakugan, N., (1990). Consolidation can be defined as the compression resulting from a long term static load and the consequent escape of pore water from the saturated soil mass. The relevant factors affecting the vertical response of a rock-socketed pile group are further discussed. 10.4 FACTORS AFFECTING THE RATE OF CONSOLIDATION 10.4.1 Permeability the construction of a building or an embankment above a soil mass) or even the decrease of the ground water table. This test is known as consolidation test. The results are presented in a semi log graph paper with applied pressure on log scale at abscissa and corresponding void ratio as ordinate on linear scale. Such heaves are fairly uniform and cause relatively little damage. Language: English. The third objective will be addressed in a forthcoming ERS report. The only way to guarantee a pile will carry the load is with a load test. }6Z+|V.ex"Y}w Pbn6P>~gGUi!%;VWp6*t Soil consolidation refers to the mechanical process by which soil changes volume gradually in response to a change in pressure. 3. Weathering can be a physical, chemical or biological process: physical weatheringbreakdown of rocks from the result of a mechanical action. 3 As for the amount, it depends on the current and the target pH of the soil, as well as the texture of the soil. In areas where soil is subjected to freezing, there is upward movement in the ground due to formation of underground ice and this phenomenon is called frost heave. Soil is subjected to downward seepage pressure previously but when it stops later, effective stress reduces. Before tunnelling, foundation protection measures in the form of grouting of the ground are carried which minimizes the inward movement of soil during tunnelling and reduces surface settlement. The drainage from the bottom porous stone can only be measured in the case of a fixed ring test. 50 The plot's slope is the compression index or recompression index. {\displaystyle C_{C}} The rate of volume change depends on the permeability of soil. The specimen is allowed to consolidate under a number of increments of vertical pressure such as 0.1, 0.2, 0.5, 1, 2, 4, 8 and 10 kg/cm2. Vertical displacements and settlement caused by change in stress and water content are described in this section. //
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