3o Mathima Texnikis Geologias_Mohr-Coulomb_Geostatikes taseis

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3o Mathima Texnikis Geologias_Mohr-Coulomb_Geostatikes taseis

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  • 3

    : . . ,

    1. (c)

    ()

    2.

  • ;

    , , . (.. ).

  • ;

    . , .

    .

  • :

    ()

  • ():

    (n):

  • .,

  • xy

  • 2

    1

    Mohr

    (c)

    ()

  • Mohr

  • ? ? ?

    ( ).

    .

    , , .

    .

    , , ,

  • xx

    zz

    zx

    xz

    x

    z

  • , = 0

    3 =

    1 =

    3 1

  • , = (1 + 3)/2

    min = - (1 - 3)/2

    max = (1- 3)/2

    min

    max

    3 1

  • xx

    zz

    zx

    xz

    x

    z

    B

  • .......

    min

    max

    3 1

    Mohr

  • ..... Mohr

    , , ????

    ..... ,

    ,

  • 3 1

    1

    3 n

    n

  • 3 1

    3

    1

    n

    n

    c

    : (1 + 3 ) / 2

    r

    : (1 - 3 ) / 2

    = c + n tan

  • 3 1 n

    c

    (1 + 3 ) / 2

    3

    1

    n

  • ( c )

  • A1*

    n=64Kg/cm

    2, f=22Kg/cm2

    1, =35 .

    1 3 c .

    * , . & . , 2008

  • A1

    : n=64Kg/cm2 =22Kg/cm2

    35 1

  • , 60 1, 1=80Kg/cm

    2 3=30Kg/cm

    2.

    A2*

    n , 1 2.

    * , . & . , 2008

  • A2 : 1=80Kg/cm

    2 3=30Kg/cm2

    60 1

  • 2

  • c=0

    = c + n tan tan

  • () (l)

    l. (f) (r)

    f r

    n

    f

    r

  • () (l)

    l. (f) (r)

    f r

    n

    f

    r

  • n ( n) ( Mohr-Coulomb) ( c)

  • B1*

    . n=65KPa =41KPa. Mohr :

    :

    1 3, max

    ( 1 3) max

    * , . & . , 2008

  • 1. -n (A) - . n Mohr.

    2. 3. n 3

    1 4. () 5. 3 (

    )

    6. 1 90-()

    7. 3 45+ /2

    8. 1 45- /2

    c=0 1 3

  • B1

  • =

    g =

    =

    = g

    h

  • 1. ():

    ,

    .

    2. (u):

    ,

    .

    3. ():

    -

    .

  • ( )

    s =s '+u

    s ' =SN '

    A

    s =P

    A

    P= SN '+uAP

    A=SN '

    A+u

    s =s '+u

    P , -. () ().

  • ( )

    s =s '+u

    u=gwz

    s 'v =s v -u= (gsat -gw)z=g 'z

    s v =gsatz

  • h

    v = h = 0

    h= kov = 0

    v, h

    ko

  • h

    v = h = 0

    h= kov = 0

    ko = / (1-)

  • , , ?

    , .....

  • ...

    h

    hw

  • As

    Aw

    tot = As +Aw

  • Fw

    Fs

    =Fs/Atot

    As

    tot = As +Aw

    Aw

  • h

    v = h

    v = v+u

    h= h +u

    = = 0

    h= kov

    u = whw

    = = 0

    hw

    :

    =

    ?

    , , .

  • v = h u = whw v = v-u

    h = kov h = h-u

    h hw

  • () () (u)

    : =19 kN/m3

    : =20kN/m3

    : =17 kN/m3 (

    ..

  • 1* :

    * . / ..

  • 1 :

  • 2 :

    .

    , , h = 167.5 kPa.

    * . / ..

  • 1. Craig R.F. (2003). Craigs Soil Mechanics. Spon Press.

    2. . (2008). . .

    3. & ., (2008). . , .

    4. . , . /, ...

    5. . , . /, ...

    6. . , . (2011). . University Studio Press.