Pertemuan 4 - Penurunan Pondasi [compatibility Mode]

  • June 2020
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Untuk diperhitungkan efeknya dalam perhitungan struktur  Sebagai indikasi awal differential settlement  Sebagai early warning bagi owner 

Biasanya diberi notasi S  Penurunan yang dimaksud dan dilaporkan adalah penurunan total  Terdiri atas : 

› Penurunan seketika (Se or Si), immediate/Elastic › Penurunan konsolidasi (Sc) › Penurunan sekunder (Ss)  pada tanah organik › Penurunan tersier (hanya pada tingkat lanjut)

Stotal = Si + Sc + Ss Granular/Sandy Stotal = Si Cohesive Stotal = Si + Sc + Ss

Why?

METODE MEYERHOFF

METODE BURLAND DAN BURBRIDGE

METODE SCHMERTMANN

Soil Type

E/qc

Young, NC Silica Sand, age < 100 yr

2.5

Aged, NC Silica Sand, age > 3000 yr

3.5

OC Silica Sand

6.0

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