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You will prepare and submit a term paper on One Dimensional Consolidation. Your paper should be a minimum of 2500 words in length. Once the characteristics are established, they are used to estimate the amount of settlement of a structure that would arise from the consolidation of its earth foundation due to structure load. The test also serves to establish the settlements that happen within dams and earth embankments. Consolidation characteristics of soil mass are influenced by several factors such as size and shape of particles, moisture content, permeability, initial density, as well as physical and chemical properties. Consolidation standard test provides the following information.
Although the discussion is mainly concerned with one-dimensional test data, the probability of shear failure must be observed. This implies that in the design for any foundation, it is important that the bearing capacity of shear failure and settlement be studied.
According to the BS 1377-50: 1998, the one-dimensional consolidation test determines the magnitude and the rate of consolidation for saturated soil specimens. The specimen is subjected to vertical axial pressure and allowed to drain freely. As the test specimen is laterally loaded, an increment of stress is applied. Each increment in stress is held constant until the consolidation process is completed. As water drains from the specimen, there is a decrease in specimen height that is measured at intervals. The measurements are used to determine the relationship between compression or voids ratio and effective stress. Calculation parameters describe the amount of stress and the rate of the stress.
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The load is applied to the specimen in a series of more increments. For this experiment, 12, 25, 100, 200, 400, and 800 kPa were used. Load intensity depends on the weight of the structure and overburden pressures occurring on the material. This should be of similar values of anticipated pressure on the foundation. .