Please help Please answer the following questions and label your with answers on
ID: 1710317 • Letter: P
Question
Please help
Please answer the following questions and label your with answers on the line provided on the left. A clay will a high OCR will tend to dilate in response to shear loading Tue False An over-consolidated (OC) clay will generally, experience more overall consolidation settlement normally-consolidated consolidation (NC)clay. True False Which of the following is representative of shearing under drained conditions: "Slow load rate delta N notequalto 0 delta 0 = 0 Both B and C all the above which of the following is NOT a potential consolidation mitigation technique: Deep foundations Floating structure Preloading Ground improvement methods Lowering water table sands tend to in response to shear loading above Loose ellipsis contract C. Undrained ellipsis contract None of the above Dense ellipsis contract Loose ellipsis dilate For a clay bounded by a sand layer on the top and impermeable bedrock on the bottom, consolidation will generally occur the fastest at which of the following locations? Top of clay layer Middle of clay layer Bottom of clay layer Impossible to determine None of the above Shearing is said to occur "undrained" when the rate of loading is fast such that pore pressures do not change. True False Which of the following is NOT an advantage of the triaxial test: Drainage control Multiple stress paths More realistic stresses strength of a soil. Failure on any above None of the any plane Cohesion represents the "stress independent" term in the shear true False A dense sand specimen tested at a higher cell pressure during a triaxial test will undergo dense sand specimen tested but tested at a lower cell more dilation than specimen with the same density at a lower cell pressure. True falseExplanation / Answer
Q1) overconsolidation ratio (OCR), which is defined as the ratio of the preconsolidation stress to the current effective stress. If OCR = 1 , it is said to be normally consolidated. If OCR is greater, it means it has experienced higher stress before and hence prone to dilation. ANSWER IS TRUE.
Q 2) As discussed above,as the over consolidated clay has already experienced higher stress and reloaded. It experiences greater settlement. ANSWER IS TRUE
Q3) If the water is drained from the clay relatively the shearing process slow downs and volume change is zero and . CORRECT ANSWER IS E)ALL OF THE ABOVE
Q4) Deep foundation,preloading,ground improvement techniques and water table reduction helps fight consolidation except "FLOATING STRUCTURE". CORRECT ANSWER IS B.
Q5)