MEKANIKA TANAH I

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MEKANIKA TANAH I. PERTEMUAN 1 PENDAHULUAN. Oleh : Arwan Apriyono. PROGRAM STUDI TEKNIK SIPIL JURUSAN TEKNIK FAKULTAS SAINS DAN TEKNIK UNSOED TAHUN 2011. I NTRODUCTION. Air Tanah . Permeabilitas Tanah. Seepage / Rembesan. Tegangan Efektif. I NTRODUCTION. I NTRODUCTION.

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MEKANIKA TANAH I

PERTEMUAN 1

PENDAHULUAN

Oleh :

ArwanApriyono

PROGRAM STUDI TEKNIK SIPIL JURUSAN TEKNIK

FAKULTAS SAINS DAN TEKNIK UNSOED

TAHUN 2011

INTRODUCTION

Air Tanah

Permeabilitas Tanah

Seepage/Rembesan

TeganganEfektif

INTRODUCTION

What is permeability?

A measure of how easily a fluid (e.g., water) can pass through a porous medium (e.g., soils)

water

Loose soil

- easy to flow

- high permeability

Dense soil

- difficult to flow

- low permeability

INTRODUCTION

What is deference betweenPorosity and Permeability?
• Illustration of pore and pore channels in a rock.
• These two figures have the same porosity (same pore space).
• In the figure to the right the pore channels are closed and the permeability is zero.

INTRODUCTION

Flow increasing. Dozers sent to fill hole at El. 5200. About 10.45 AM June 5, 1976.

INTRODUCTION

Early afternoon June 5, 1976

INTRODUCTION

Late afternoon June 5, 1976.

INTRODUCTION

• BahanKuliahSetelah Mid Test:
• 1. Pendahuluan & Air Tanah
• 2. Permeabilitas Tanah
• GarisAliran
• Hukum Darcy
• Ujipermeabilitasdilaboratorium
• Ujipermeabilitasdilapangan
• 3. Seepage/Rembesan :
• Flow Net
• Seepage
• TekananRembesan
• Keamananthd Piping
• 4. TeganganEfektif

Pertemuan 1

Pertemuan 2

Pertemuan 3

Pertemuan 4

Pertemuan 5

Pertemuan 6