Sub-topics Environmental Geomechanics Genesis of the Subject Scope - - PowerPoint PPT Presentation

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Sub-topics Environmental Geomechanics Genesis of the Subject Scope - - PowerPoint PPT Presentation

Basic Introduction Sub-topics Environmental Geomechanics Genesis of the Subject Scope Environmental Geomechanics Genesis Population Explosion Industrialization Sluggish and Dont bother approach Ignorance Human Greed A


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SLIDE 1

Basic Introduction

Sub-topics

  • Environmental Geomechanics
  • Genesis of the Subject
  • Scope
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SLIDE 2

Environmental Geomechanics

Genesis

Population Explosion Industrialization Sluggish and “Don’t bother approach” Ignorance Human Greed

A Philosophy put in practice to deal with

underground environmental Problems Combination/Blend of Geotechnical Engg. & Environmental Engg.

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SLIDE 3

Environmental Geomechanics

Very broadly, the subject deals with:

Assessment of quality (Behavior/Response) of: geomaterials water, and land resources Transport, use and disposal of hazardous wastes Water and wastewater treatment, and Waste & waste-water recycling/re-use

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SLIDE 4

Environmental Geomechanics……

Encompass the analysis and design of foundation system Seepage control, earth dams and water resource structures Response of foundations and embankments to the

ENVIRONMENTAL ACTIVITIES Man made Industrialization/population explosion Natural earthquakes and to some extent to Natural calamity

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SLIDE 5
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SLIDE 6

Scope of Environmental Geomechanics

Protection of ground water aquifers from contamination (Containment) Assessment of pollutants being discharged on/in the soil deposits (Disposal/Handling/storage) Process by which the pollutants travel in geo- environment (Contaminant Transport) Methods of cleaning the contaminated sites (Remediation) Methods of creating “Value added” products (Recovery, Recycling & Reuse…..Three Rs)

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SLIDE 7

Precipitation Landfill Stationary W.T. Contaminant plume Leachate Hard rock (Impervious,Aquitard) Soil G.L.

Spread of Contaminant(s)

Containment /Barrier (Sheet pile/grout)

(Waste-Environment Interaction)

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SLIDE 8

Precipitation Landfill Moving W.T. plume Hard rock (Impervious,Aquitard) Extent (time & space) Intensity Concentration G.L.

Spread of Contaminant (another scenario)

Soil Calls for: Modeling (to predict transport & fate of contaminants in geoenvironment) Validation

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SLIDE 9

Importance of the following

  • Theory (model making)
  • Lab tests (data generation)
  • Field tests (data generation/verification)
  • Empirical relations (validation of the developed theory)
  • Computer Applications (Role of Information Technology)
  • Experience, Judgement and FOS

(Application of the acquired knowledge)