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A saturated compressible clay layer of thickness h is sandwiched between two sand layers, as shown in the figure. Initially, the total vertical stress and pore water pressure at point P. which is located at the mid-depth of the clay layer were 150 kPa and 25 kPa. respectively. Construction of a building caused an additional total vertical stress of 100 kPa at P. When the vertical effective stress at P is 175 kPa. the percentage of consolidation in The clay layer at P i s _________. (in integer)
    Correct answer is '50'. Can you explain this answer?
    Verified Answer
    A saturated compressible clay layer of thickness h is sandwiched betwe...
    We know degree of consolidation,

    Ui = initial excess pore water pressure i.e. 100 kPa
    Initial total stress, σ = 150 kPa
    Initial effective stress, σ'0 = σ - u =150 - 25 = 125 kPa
    Total stress after construction of building = 150 + 100 = 250 kPa
    When the vertical effective stress at P is 175 kPa, the change in effective stress is 175 - 125 = 50 kPa, so during this, the change in pore water pressure is
    ∴ Δσ = Δσ' + Δu
    ∴  (250 - 150) = (175 - 125) + Δu
    ∴  Δu = 50 kPa
    ∴  
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    Most Upvoted Answer
    A saturated compressible clay layer of thickness h is sandwiched betwe...
    We know degree of consolidation,

    Ui = initial excess pore water pressure i.e. 100 kPa
    Initial total stress, σ = 150 kPa
    Initial effective stress, σ'0 = σ - u =150 - 25 = 125 kPa
    Total stress after construction of building = 150 + 100 = 250 kPa
    When the vertical effective stress at P is 175 kPa, the change in effective stress is 175 - 125 = 50 kPa, so during this, the change in pore water pressure is
    ∴ Δσ = Δσ' + Δu
    ∴  (250 - 150) = (175 - 125) + Δu
    ∴  Δu = 50 kPa
    ∴  
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    A saturated compressible clay layer of thickness h is sandwiched between two sand layers, as shown in the figure. Initially, the total vertical stress and pore water pressure at point P. which is located at the mid-depth of the clay layer were 150 kPa and 25 kPa. respectively. Construction of a building caused an additional total vertical stress of 100 kPa at P. When the vertical effective stress at P is 175 kPa. the percentage of consolidation in The clay layer at P i s _________. (in integer)Correct answer is '50'. Can you explain this answer?
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    A saturated compressible clay layer of thickness h is sandwiched between two sand layers, as shown in the figure. Initially, the total vertical stress and pore water pressure at point P. which is located at the mid-depth of the clay layer were 150 kPa and 25 kPa. respectively. Construction of a building caused an additional total vertical stress of 100 kPa at P. When the vertical effective stress at P is 175 kPa. the percentage of consolidation in The clay layer at P i s _________. (in integer)Correct answer is '50'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A saturated compressible clay layer of thickness h is sandwiched between two sand layers, as shown in the figure. Initially, the total vertical stress and pore water pressure at point P. which is located at the mid-depth of the clay layer were 150 kPa and 25 kPa. respectively. Construction of a building caused an additional total vertical stress of 100 kPa at P. When the vertical effective stress at P is 175 kPa. the percentage of consolidation in The clay layer at P i s _________. (in integer)Correct answer is '50'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A saturated compressible clay layer of thickness h is sandwiched between two sand layers, as shown in the figure. Initially, the total vertical stress and pore water pressure at point P. which is located at the mid-depth of the clay layer were 150 kPa and 25 kPa. respectively. Construction of a building caused an additional total vertical stress of 100 kPa at P. When the vertical effective stress at P is 175 kPa. the percentage of consolidation in The clay layer at P i s _________. (in integer)Correct answer is '50'. Can you explain this answer?.
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