Mention two practical ways to increase the effective stress of a soil in the field. Explain your reasoning using Terzaghi’s equation
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Mention two practical ways to increase the effective stress of a soil in the field. Explain your reasoning using Terzaghi’s equation
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- Calculate the value of the effetive stress at the bottom of the given soil.The diagram below shows a multi-layered soil, write an expression for the stress at each layer and the vertical total stress at depth z. (all symbols have their usual meaning)i. Describe how changes in the mean normal stress affect the sign and magnitude of the excess pore water pressure in a soil. ii. Which would probably provide better support for a large, heavy building, a diorite or a shale? Why?
- Define Effective Stress and discuss its importance in soil mechanics.In the soil profile shown below, calculate the effective stresses at:a) the interface of the dry sand and clay layer; andb) the bottom of the clay layer. Express your answers in lb/cu. ft rounded to the nearest whole number. NOTE: Pay heed to the capillarity in the upper clay. Assume S = 50%I need an answer. Asap. Subject: soil mechanics. Choices are indicated.
- Stresses acting on an infinitesimal soil element are shown in the figure (with o₂ > 0). The major and minor principal stresses are o, and o3, respectively. Considering the compressive stresses as positive, which one of the following expressions correctly represents the angle between the major principal stress plane and the horizontal plane? ox ·0xWhich of the following statements are correct (select all that apply) A.Boussinesq’s equations can be reasonably used to estimate the increase in vertical stress within the founding soil for an embedded circular tank as long as the entire soil profile is linear-elastic, homogeneous and isotropic. B.Boussinesq’s equations can be reasonably used to estimate the increase in vertical stress within a deep soil deposit as long as the soil layer within the influence depth of the surface load is linear-elastic, homogeneous and isotropic. C.If a soil profile consists of a very stiff layer near the surface underlain by a softer layer, Boussinesq’s equations would tend to under-estimate the increase in vertical stress within the softer soil layer due to a surface load. D.If a soil profile consists of a soft layer near the surface underlain by a very stiff layer, Boussinesq’s equations would tend to under-estimate the increase in vertical stress within the upper layer due to a surface load.Kindly answer the problem attached image below. Thank you so much.
- please Show complete solution and avoid rounding off intermediate values. Please write legibly. AthanksWhich of the following statements are correct (select all that apply) ? Group of answer choices Boussinesq’s equations can be used to estimate the increase in total vertical stress within the soil below the foundation of a circular tank resting at the ground surface as long as the entire soil profile is linear-elastic, homogeneous and isotropic. The principle of superposition of loads can be used to combine the increase in vertical stress from various surface loads as long as long the underlying soil profile is homogeneous. If a soil profile consists of a soft clay layer near the surface underlain by a very stiff clay layer, Boussinesq’s equations would tend to over-estimate the increase in vertical stress within the upper soft clay layer due to a surface load. The influence depth associated with a surface load corresponds to the depth beyond which the relative increase in vertical stress after loading is negligible.Kindly answer all. If you can't answer all please leave it. Thank you