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Response of slope composed of soil and other wastes under sinusoidal motion

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Document pages: 16 pages

Abstract: Through shaking table test, the performance of small embankment slope under dynamic load is evaluated. The model slope is composed of soil and soil dust mixture under different water levels. The types of material dust used in the experiment are saw dust, stone dust, brick dust and building demolition dust. Under different water content conditions, after adding 30 building demolition dust, the average shear strength (cohesion and internal friction angle) of soil is increased by 25 and 23 respectively. Similarly, other dust materials can also improve the shear strength of soil. Based on the laboratory test, the response of the model slope is observed and given. Under the condition of fundamental frequency of 5   Hz and 6 water content, when the slope increases, the rmsa decreases by 57 al is changed from soil to “S + 30 DD” for slope with inclination 45° and at the same condition slope shows better stability which is reflected from reduction of base displacement as well as crest deformation up to 89 and 58 , respectively. Analytical solution of slope considering planer rupture surface is done using pseudodynamic method and results are compared with experimental observation. It is seen that when soil is mixed with 30 stone dust, sliding displacement of slope with inclination 45° is 7.5 mm at shake table test which is very closer to the analytical result. Stability of slope is maximum when “soil and building demolish dust” mixture is used and gradually reduces when slope material changes from “soil and brick dust,” “soil and stone dust,” “soil and saw dust” mixture, and ultimately soil. Thus, different material dust which we treat as waste can be used at various field conditions to enhance stability of embankment slope.

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