Teori Tekanan Tanah Lateral 1
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Transcript of Teori Tekanan Tanah Lateral 1
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TEORI TEKANAN TANAH LATERAL - 1MEKANIKA TANAH
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TEKANAN TANAHzsh = K . sv K = Koefisien tekanan tanahs'vsh
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Refresh..zshs'vsh ?hsv ?
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Refresh..zshs'vhsv = (gn .h)+(gsat 1)(z-h)sh = K . sv = K.(gn .h)+K.(gsat 1)(z-h)
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TEKANAN TANAHTEKANAN TANAH : AKTIF PASIF AT REST
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TEKANAN TANAH
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KOEFISIEN TEKANAN TANAHKOEFISIEN TEKANAN TANAH : AKTIF Ka PASIF Kp AT REST K0K0 = 1 sin f Jaky (1944)
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Contoh 1
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Contoh 1
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Contoh 1
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Contoh 2
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Contoh 2
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KOEFISIEN TEKANAN TANAH
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KOEFISIEN TEKANAN TANAHKOEFISIEN TEKANAN TANAH :1. Metode Rankine
2. Metode Coulomb
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KOEFISIEN TEKANAN TANAHKOEFISIEN TEKANAN TANAH :AKTIF Kohesif (c, f = 0) Non Kohesif (c=0, f) c, fPasif Kohesif (c, f = 0) Non Kohesif (c=0, f) c, f
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RANKINE AKTIF KOHESIF
RANKINE
Tanah Kohesif Tension Crack
Tension crack mengurangi nilai tekanan tanah aktif, menambah nilai tekanan tanah pasif
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RANKINE AKTIF KOHESIF
Contoh :
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RANKINE AKTIF KOHESIF
Contoh :
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RANKINE AKTIF KOHESIF
Contoh :
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RANKINE AKTIF KOHESIF
Contoh :
Tinggi Galian Kritis
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RANKINE AKTIF NON KOHESIF
General Case
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RANKINE AKTIF NON KOHESIF
General Case
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RANKINE AKTIF NON KOHESIF
Vertical Back Wall
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RANKINE AKTIF c and f Soil
Ingat tanah c Tension Crack
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RANKINE AKTIF c and f Soil
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RANKINE AKTIFContoh :
Ditanyakan : Gambar distibusi tegangan Nilai resultant gaya Titik tangkap
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RANKINE AKTIFContoh :
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RANKINE AKTIF
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RANKINE AKTIF
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RANKINE AKTIF
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COULOMBAKTIFNON KOHESIF
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COULOMBAKTIFNON KOHESIF
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COULOMBAKTIFNON KOHESIF
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COULOMBAKTIFNON KOHESIF
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Contoh
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Contoh