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    Earth

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    R Shyam

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    © All Rights Reserved
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    Earth

    Uploaded by

    R Shyam
    7 views3 pages

    Copyright

    © © All Rights Reserved

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    Copyright:

    © All Rights Reserved
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    Download as xlsx, pdf, or txt
    7 views3 pages

    Earth

    Uploaded by

    R Shyam

    Copyright:

    © All Rights Reserved
    Download as XLSX, PDF, TXT or read online from Scribd
    Download as xlsx, pdf, or txt
    of 3

    CALCULATION OF ACTIVE & PASSIVE LATERAL EARTH PRESSURE

    Water table (m) Total depth of soil (m)


    6.3 20

    Starting Ending Layer Cohesion Angle of Bulk density Submerged


    Layer (C) friction
    depth depth thickness density (g') hw
    No (g) (kn/m3)
    (m) (m) (m) (kn/m )
    2
    (f) (kn/m3)

    1 0 2 2 2 27.7 18.1 8.29 0


    2 2 6.3 4.3 2 26.3 18.6 8.79 0
    3 6.3 7 0.7 2 26.3 18.6 8.79 0.7
    4 7 10.5 3.5 0 32 18.9 9.09 3.5
    5 10.5 13.5 3 0 33 19.1 9.29 3
    6 13.5 15 1.5 2 27.3 19.5 9.69 1.5
    7 15 16 1 0 25 19.5 9.69 1
    8 16 20 4 0 28 20 10.19 4
    9 0 0 0 0 0 0 -9.81 0
    10 0 0 0 0 0 0 -9.81 0

    0 2 18.1
    2 6.3 18.6
    6.3 7 18.6
    7 10.5 18.9
    10.5 13.5 19.1
    13.5 15 19.5
    15 16 19.5
    16 20 20
    0 0 0
    EARTH PRESSURE BY RANKINE'S THEORY

    Total depth of soil (m) Surcharge (q) (kn/m2) Inclination angle (b) cos(b) Density of water (gw) (kn/m3)
    20 0 0 1 9.81

    h' ka ka*q (kn/m2) gw*hw ka*g'*hw ka*g*h' 2C√ka (kn/m2)


    (kn/m2) (kn/m2) (kn/m2)

    2 0.36533492 0 0 0 13.225124 2.4177176736


    4.3 0.38593301 0 0 0 30.866922 2.4849402748
    0 0.38593301 0 6.867 2.37464581 0 2.4849402748
    0 0.30725852 0 34.335 9.77542996 0 0
    0 0.29480089 0 29.43 8.21610085 0 0
    0 0.37113126 0 14.715 5.39439285 0 2.4368217299
    0 0.40585852 0 9.81 3.93276903 0 0
    0 0.36103348 0 39.24 14.7157248 0 0
    0 1 0 0 0 0 0
    0 1 0 0 0 0 0

    8.29
    8.79
    8.79
    9.09
    9.29
    9.69
    9.69
    10.19
    -9.81
    ensity of water (gw) (kn/m3)
    9.81

    Active pressure (Pa) (kn/m2) Active


    thrust (F)
    (kn/m)
    Just above Just below
    0 0
    10.8074064968 11.48583471 10.8074065
    28.38198191245 28.38198191 85.7158057
    6.756705539348 6.540325496 12.2985406
    44.11042995768 43.71409037 88.638822
    37.64610085363 39.77342819 122.040287
    17.67257111891 18.0658725 43.0844995
    13.74276903172 13.30841446 15.9043208
    53.95572478739 80 134.528278
    0 0 0
    0 0 0

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