analysis and design of geotechnical structures and

Analysis and Design of Geotechnical Structures and Earthworks (6 CFU) – I semester

Prof. Monica Barbero

Monica Barbero – Analysis and design of geotechnical structures and earthworks 2

Main aims

• Providing the necessary tools to assess the safety of new and existing geotechnical works with the aim to

mitigate the risk for people, facilities and infrastructure because of geotechnical problems

• Giving the ability of analyzing a geotechnical problem, identifying the engineering solution and designing it,

by means of analytic and numerical tools

• Providing the basis for the design of geotechnical works in all its stages, starting from the site

characterization to the work execution

• Teaching to produce a complete and rigorous technical report

These objectives will be achieved by LECTURES and TUTORIALS

Main contents

• Basics of rock mechanics (for students who did not attend Rock Mechanics course)

• Geotechnical surveys and in situ tests

• Analysis of the stability of soil and rock natural slopes and excavations

• Geotechnical works for mitigating the risk due to soil and rock instability problems

• Earth works and design procedures

Overview

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Geotechnical surveys and in situ tests

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• Analysis of the stability of soil and rock

natural slopes and excavations

• Soil-structure interaction

Stability analyses

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Soil and rock slopes stabilization systems

(anchorages, bars);

Defence works (rockfall barriers,

rockfall nets, rockfall embankments

Geotechnical works for mitigating the risk due to soil and rock instabilities

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(from Keller website)

Micro drains, draining wells

Ground improvement techniques

(Bell, 1987)

jet grouting, soil nailing

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GabionsReinforced soil structures

Earth works and design procedures

Retaining structures

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One way formwork (electrically

welded mesh)

Soft soil

Geogrid

Filling compacted soil

Hook for the formwork hardening

Anti erosion coat

Geomats

Reinforced soil embankments

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Identification of danger

Hazard analysis H

Spatial probability of

occurrence

Magnitude

Time probability of

occurrence

Consequences analysis D

Element at risk

Vulnerability of element at

risk(V)

Worth and exposure of

element at risk (W and Es)

D = V x Es x W

R = H x D

Risk assessment procedure

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• Rockfall analysis and design of a defence work

• Stability analysis of a rock volume and design of

a stabilization system

Project - Example

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Design of a reinforced soil embankments

Project - Example

I look forward to meet you at my coursefor another successful experience !

monica.barbero@polito.it