Lect 3 Estimasi Penurunan Fondasi
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Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
1
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
2
)&%)*!+* & )!$+*
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
3
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
4
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
5
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
6
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
7
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
8
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
9
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
10
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
11
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
12
$%+,($+ )!# #!(! -&!.($+
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
13
)!# #!(! /($%+$0
/($%+$0 )-+!+$+
.(1(% *),2(/+ *) 1&$+$+ $),#/(3
1)!# #!(! $)") (
+%)!%#*(! &/)' ,&.#/#$ )/($%+$+%($ %(!('0
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◦ &!.+$+ %) . (+!($) . (+!). 0 .
#
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
14
)!# #!(! /($%+$
Q
σ
E
E
H
εz
ρ4
σ
Kondisi umum tegangan
dan regangan
4
ε5
ρ=
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#
15
/($%+$+%($0 ),1#!"
#
Kondisi tak terdrainase
),1#!" 4 /#!(*
6
),1#!" *) ($ 4
6
),1#!" *(*# 4
6
),1#!" $(!"(% *(*# 4
+1+*(/
εz .dz
Dr.Eng.
0 Agus S. Muntohar
Department of Civil Engineering
( (,(%)
+1+*(/ !+/(+
∞
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* (
* (
67
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6
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1) #2('(! :&/#,)
%+.(* %) 9(.+
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
16
( (,(%)
+1+*(/ !+/(+
/($%+$+%($0
/($%+$+%($0 ($+
Kondisi terdrainase
.
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6
* (
6
6
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6;
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* (
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Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
17
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+.(* %) 9(.+ 1) #2('(! %)*(!(! 1& +
#/(+ %) 9(.+ 1(.( (*'+ *&!$&/+.($+ 1 +,)
α
cα =
≈
∆e
log (t2 / t1)
ρ=
cαH
(1+e
(1+
ep)
log (t2/t1)
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
46
)!# #!(! &%(/
ρtot = RF x DF ( ρelas + ρpr.con + ρsec )
RF = roughness factor (0.8 ~ 1)
DF = depth factor
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
47
&!%&' )!"'+%#!"(!
+/('*(! +*#%+ 1) %),#(! .+ *)/($
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
48
#!%&'(
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
1
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
2
)&%)*!+* & )!$+*
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
3
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
4
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
5
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
6
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
7
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
8
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
9
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
10
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
11
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
12
$%+,($+ )!# #!(! -&!.($+
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
13
)!# #!(! /($%+$0
/($%+$0 )-+!+$+
.(1(% *),2(/+ *) 1&$+$+ $),#/(3
1)!# #!(! $)") (
+%)!%#*(! &/)' ,&.#/#$ )/($%+$+%($ %(!('0
◦ &!.+$+ %(* %) . (+!($) #!. (+!). 0
◦ &!.+$+ %) . (+!($) . (+!). 0 .
#
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
14
)!# #!(! /($%+$
Q
σ
E
E
H
εz
ρ4
σ
Kondisi umum tegangan
dan regangan
4
ε5
ρ=
◦
◦
◦
◦
#
15
/($%+$+%($0 ),1#!"
#
Kondisi tak terdrainase
),1#!" 4 /#!(*
6
),1#!" *) ($ 4
6
),1#!" *(*# 4
6
),1#!" $(!"(% *(*# 4
+1+*(/
εz .dz
Dr.Eng.
0 Agus S. Muntohar
Department of Civil Engineering
( (,(%)
+1+*(/ !+/(+
∞
* (
* (
* (
67
* (
8#
◦ ),#( 9)!+$ /),1#!" 4
6
+1+*(/ (!"(* &+$$&! ν#
◦ ),#( 9)!+$ /),1#!" 4
1) #2('(! :&/#,)
%+.(* %) 9(.+
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
16
( (,(%)
+1+*(/ !+/(+
/($%+$+%($0
/($%+$+%($0 ($+
Kondisi terdrainase
.
◦
◦
◦
◦
6
* (
6
6
* (
6;
* (
* (
+1+*(/ (!"*( &+$$&! ν.
◦
◦
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
17
+$% +2#$+ )"(!"(! 0 (1(! 8 ))1
+.(* %) 9(.+ 1) #2('(! %)*(!(! 1& +
#/(+ %) 9(.+ 1(.( (*'+ *&!$&/+.($+ 1 +,)
α
cα =
≈
∆e
log (t2 / t1)
ρ=
cαH
(1+e
(1+
ep)
log (t2/t1)
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
46
)!# #!(! &%(/
ρtot = RF x DF ( ρelas + ρpr.con + ρsec )
RF = roughness factor (0.8 ~ 1)
DF = depth factor
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
47
&!%&' )!"'+%#!"(!
+/('*(! +*#%+ 1) %),#(! .+ *)/($
Dr.Eng. Agus S. Muntohar
Department of Civil Engineering
48