The void ratio of a 4 m thick consolidated clay is 1.3. The compression index and coefficient of consolidation of the clay is 0.6 and 1m2/year respectively. It is observed that the increase in vertical pressure is equal to the effective overburden pressure. Determine the change in the thickness of the clay layer (in mm).

Q: Assume that the compressible soil shown in Figure 1 consists of a clay layer 10 ft thick. A…

A: Initial void ratio (eo) = 1.10Saturated Densityνsat =  115 lb/ft2Existing over burden pressure(po) =…

Q: A layer of normally consolidated, saturated silty clay of 1 m thickness is subjected to one…

A:

Q: 9. A cubic meter of a saturated, normally consolidated clay has a dry mass of 4 kg and a porosity of…

A: Since we know that                 Void ratio (e) = Porosity1- porosity = n1-n Here porosity (n) =…

Q: A compressible 6 m thick clay layer has initial void ratio of 1.70. If final void ratio after…

A: Here are the given data from your question:Thickness of the clay layer, H=6 mInitial void ratio…

Q: A normally consolidated clay layer of 4 m in thikness has overburden stress of 96.7 kPa and final…

A: step 1-

Q: a (kN/m?) 0.92 150 300 0.77 O Cingage Leaming 20

A: Coefficient of volume compressibility is defined as when a unit pressure is applied on the unit…

Q: A 10 m thick clay layer overlying an impermeable rock is consolidated under an overburden pressure…

A: H = 10 m  = 500 kPa = 300 kPa

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.