PUBLICATION IN ITALIAN AND ENGLISH
In the construction and design of a tunnel, the preliminary study of the rock mass along its route cannot be ignored because it is necessary, first of all, even in the first phase of the design, to consider the various aspects: functional, environmental, social, economic, etc. .
However, the fundamental part is given by the behavior of the geological formations, also in relation to water, which must be studied and analyzed both from a geological and geotechnical point of view. These are the most important factors to consider both in the design and construction phase of a tunnel. In particular:
- crossing of faults and milonitized areas with the presence of fluid-plastic soil;
- strong floods of water;
- gas inflows.
2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
PUBLICATION IN ITALIAN AND ENGLISH
In the construction and design of a tunnel, the preliminary study of the rock mass along its route cannot be ignored because it is necessary, first of all, even in the first phase of the design, to consider the various aspects: functional, environmental, social, economic, etc. .
However, the fundamental part is given by the behavior of the geological formations, also in relation to water, which must be studied and analyzed both from a geological and geotechnical point of view. These are the most important factors to consider both in the design and construction phase of a tunnel. In particular:
- crossing of faults and milonitized areas with the presence of fluid-plastic soil;
- strong floods of water;
- gas inflows.
2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
The realm of product design is a constantly changing environment where technology and style intersect. Every year introduces fresh challenges and exciting trends that mold the future of this captivating art form. In this piece, we delve into the significant trends set to influence the look and functionality of product design in the year 2024.
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
Mental health has been in the news quite a bit lately. Dozens of U.S. states are currently suing Meta for contributing to the youth mental health crisis by inserting addictive features into their products, while the U.S. Surgeon General is touring the nation to bring awareness to the growing epidemic of loneliness and isolation. The country has endured periods of low national morale, such as in the 1970s when high inflation and the energy crisis worsened public sentiment following the Vietnam War. The current mood, however, feels different. Gallup recently reported that national mental health is at an all-time low, with few bright spots to lift spirits.
To better understand how Americans are feeling and their attitudes towards mental health in general, ThinkNow conducted a nationally representative quantitative survey of 1,500 respondents and found some interesting differences among ethnic, age and gender groups.
Technology
For example, 52% agree that technology and social media have a negative impact on mental health, but when broken out by race, 61% of Whites felt technology had a negative effect, and only 48% of Hispanics thought it did.
While technology has helped us keep in touch with friends and family in faraway places, it appears to have degraded our ability to connect in person. Staying connected online is a double-edged sword since the same news feed that brings us pictures of the grandkids and fluffy kittens also feeds us news about the wars in Israel and Ukraine, the dysfunction in Washington, the latest mass shooting and the climate crisis.
Hispanics may have a built-in defense against the isolation technology breeds, owing to their large, multigenerational households, strong social support systems, and tendency to use social media to stay connected with relatives abroad.
Age and Gender
When asked how individuals rate their mental health, men rate it higher than women by 11 percentage points, and Baby Boomers rank it highest at 83%, saying it’s good or excellent vs. 57% of Gen Z saying the same.
Gen Z spends the most amount of time on social media, so the notion that social media negatively affects mental health appears to be correlated. Unfortunately, Gen Z is also the generation that’s least comfortable discussing mental health concerns with healthcare professionals. Only 40% of them state they’re comfortable discussing their issues with a professional compared to 60% of Millennials and 65% of Boomers.
Race Affects Attitudes
As seen in previous research conducted by ThinkNow, Asian Americans lag other groups when it comes to awareness of mental health issues. Twenty-four percent of Asian Americans believe that having a mental health issue is a sign of weakness compared to the 16% average for all groups. Asians are also considerably less likely to be aware of mental health services in their communities (42% vs. 55%) and most likely to seek out information on social media (51% vs. 35%).
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
This article is all about what AI trends will emerge in the field of creative operations in 2024. All the marketers and brand builders should be aware of these trends for their further use and save themselves some time!
A report by thenetworkone and Kurio.
The contributing experts and agencies are (in an alphabetical order): Sylwia Rytel, Social Media Supervisor, 180heartbeats + JUNG v MATT (PL), Sharlene Jenner, Vice President - Director of Engagement Strategy, Abelson Taylor (USA), Alex Casanovas, Digital Director, Atrevia (ES), Dora Beilin, Senior Social Strategist, Barrett Hoffher (USA), Min Seo, Campaign Director, Brand New Agency (KR), Deshé M. Gully, Associate Strategist, Day One Agency (USA), Francesca Trevisan, Strategist, Different (IT), Trevor Crossman, CX and Digital Transformation Director; Olivia Hussey, Strategic Planner; Simi Srinarula, Social Media Manager, The Hallway (AUS), James Hebbert, Managing Director, Hylink (CN / UK), Mundy Álvarez, Planning Director; Pedro Rojas, Social Media Manager; Pancho González, CCO, Inbrax (CH), Oana Oprea, Head of Digital Planning, Jam Session Agency (RO), Amy Bottrill, Social Account Director, Launch (UK), Gaby Arriaga, Founder, Leonardo1452 (MX), Shantesh S Row, Creative Director, Liwa (UAE), Rajesh Mehta, Chief Strategy Officer; Dhruv Gaur, Digital Planning Lead; Leonie Mergulhao, Account Supervisor - Social Media & PR, Medulla (IN), Aurelija Plioplytė, Head of Digital & Social, Not Perfect (LI), Daiana Khaidargaliyeva, Account Manager, Osaka Labs (UK / USA), Stefanie Söhnchen, Vice President Digital, PIABO Communications (DE), Elisabeth Winiartati, Managing Consultant, Head of Global Integrated Communications; Lydia Aprina, Account Manager, Integrated Marketing and Communications; Nita Prabowo, Account Manager, Integrated Marketing and Communications; Okhi, Web Developer, PNTR Group (ID), Kei Obusan, Insights Director; Daffi Ranandi, Insights Manager, Radarr (SG), Gautam Reghunath, Co-founder & CEO, Talented (IN), Donagh Humphreys, Head of Social and Digital Innovation, THINKHOUSE (IRE), Sarah Yim, Strategy Director, Zulu Alpha Kilo (CA).
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
The search marketing landscape is evolving rapidly with new technologies, and professionals, like you, rely on innovative paid search strategies to meet changing demands.
It’s important that you’re ready to implement new strategies in 2024.
Check this out and learn the top trends in paid search advertising that are expected to gain traction, so you can drive higher ROI more efficiently in 2024.
You’ll learn:
- The latest trends in AI and automation, and what this means for an evolving paid search ecosystem.
- New developments in privacy and data regulation.
- Emerging ad formats that are expected to make an impact next year.
Watch Sreekant Lanka from iQuanti and Irina Klein from OneMain Financial as they dive into the future of paid search and explore the trends, strategies, and technologies that will shape the search marketing landscape.
If you’re looking to assess your paid search strategy and design an industry-aligned plan for 2024, then this webinar is for you.
5 Public speaking tips from TED - Visualized summarySpeakerHub
From their humble beginnings in 1984, TED has grown into the world’s most powerful amplifier for speakers and thought-leaders to share their ideas. They have over 2,400 filmed talks (not including the 30,000+ TEDx videos) freely available online, and have hosted over 17,500 events around the world.
With over one billion views in a year, it’s no wonder that so many speakers are looking to TED for ideas on how to share their message more effectively.
The article “5 Public-Speaking Tips TED Gives Its Speakers”, by Carmine Gallo for Forbes, gives speakers five practical ways to connect with their audience, and effectively share their ideas on stage.
Whether you are gearing up to get on a TED stage yourself, or just want to master the skills that so many of their speakers possess, these tips and quotes from Chris Anderson, the TED Talks Curator, will encourage you to make the most impactful impression on your audience.
See the full article and more summaries like this on SpeakerHub here: https://speakerhub.com/blog/5-presentation-tips-ted-gives-its-speakers
See the original article on Forbes here:
http://www.forbes.com/forbes/welcome/?toURL=http://www.forbes.com/sites/carminegallo/2016/05/06/5-public-speaking-tips-ted-gives-its-speakers/&refURL=&referrer=#5c07a8221d9b
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
Everyone is in agreement that ChatGPT (and other generative AI tools) will shape the future of work. Yet there is little consensus on exactly how, when, and to what extent this technology will change our world.
Businesses that extract maximum value from ChatGPT will use it as a collaborative tool for everything from brainstorming to technical maintenance.
For individuals, now is the time to pinpoint the skills the future professional will need to thrive in the AI age.
Check out this presentation to understand what ChatGPT is, how it will shape the future of work, and how you can prepare to take advantage.
A brief introduction to DataScience with explaining of the concepts, algorithms, machine learning, supervised and unsupervised learning, clustering, statistics, data preprocessing, real-world applications etc.
It's part of a Data Science Corner Campaign where I will be discussing the fundamentals of DataScience, AIML, Statistics etc.
Time Management & Productivity - Best PracticesVit Horky
Here's my presentation on by proven best practices how to manage your work time effectively and how to improve your productivity. It includes practical tips and how to use tools such as Slack, Google Apps, Hubspot, Google Calendar, Gmail and others.
The six step guide to practical project managementMindGenius
The six step guide to practical project management
If you think managing projects is too difficult, think again.
We’ve stripped back project management processes to the
basics – to make it quicker and easier, without sacrificing
the vital ingredients for success.
“If you’re looking for some real-world guidance, then The Six Step Guide to Practical Project Management will help.”
Dr Andrew Makar, Tactical Project Management
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Applitools
During this webinar, Anand Bagmar demonstrates how AI tools such as ChatGPT can be applied to various stages of the software development life cycle (SDLC) using an eCommerce application case study. Find the on-demand recording and more info at https://applitools.info/b59
Key takeaways:
• Learn how to use ChatGPT to add AI power to your testing and test automation
• Understand the limitations of the technology and where human expertise is crucial
• Gain insight into different AI-based tools
• Adopt AI-based tools to stay relevant and optimize work for developers and testers
* ChatGPT and OpenAI belong to OpenAI, L.L.C.
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
The realm of product design is a constantly changing environment where technology and style intersect. Every year introduces fresh challenges and exciting trends that mold the future of this captivating art form. In this piece, we delve into the significant trends set to influence the look and functionality of product design in the year 2024.
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
Mental health has been in the news quite a bit lately. Dozens of U.S. states are currently suing Meta for contributing to the youth mental health crisis by inserting addictive features into their products, while the U.S. Surgeon General is touring the nation to bring awareness to the growing epidemic of loneliness and isolation. The country has endured periods of low national morale, such as in the 1970s when high inflation and the energy crisis worsened public sentiment following the Vietnam War. The current mood, however, feels different. Gallup recently reported that national mental health is at an all-time low, with few bright spots to lift spirits.
To better understand how Americans are feeling and their attitudes towards mental health in general, ThinkNow conducted a nationally representative quantitative survey of 1,500 respondents and found some interesting differences among ethnic, age and gender groups.
Technology
For example, 52% agree that technology and social media have a negative impact on mental health, but when broken out by race, 61% of Whites felt technology had a negative effect, and only 48% of Hispanics thought it did.
While technology has helped us keep in touch with friends and family in faraway places, it appears to have degraded our ability to connect in person. Staying connected online is a double-edged sword since the same news feed that brings us pictures of the grandkids and fluffy kittens also feeds us news about the wars in Israel and Ukraine, the dysfunction in Washington, the latest mass shooting and the climate crisis.
Hispanics may have a built-in defense against the isolation technology breeds, owing to their large, multigenerational households, strong social support systems, and tendency to use social media to stay connected with relatives abroad.
Age and Gender
When asked how individuals rate their mental health, men rate it higher than women by 11 percentage points, and Baby Boomers rank it highest at 83%, saying it’s good or excellent vs. 57% of Gen Z saying the same.
Gen Z spends the most amount of time on social media, so the notion that social media negatively affects mental health appears to be correlated. Unfortunately, Gen Z is also the generation that’s least comfortable discussing mental health concerns with healthcare professionals. Only 40% of them state they’re comfortable discussing their issues with a professional compared to 60% of Millennials and 65% of Boomers.
Race Affects Attitudes
As seen in previous research conducted by ThinkNow, Asian Americans lag other groups when it comes to awareness of mental health issues. Twenty-four percent of Asian Americans believe that having a mental health issue is a sign of weakness compared to the 16% average for all groups. Asians are also considerably less likely to be aware of mental health services in their communities (42% vs. 55%) and most likely to seek out information on social media (51% vs. 35%).
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
This article is all about what AI trends will emerge in the field of creative operations in 2024. All the marketers and brand builders should be aware of these trends for their further use and save themselves some time!
A report by thenetworkone and Kurio.
The contributing experts and agencies are (in an alphabetical order): Sylwia Rytel, Social Media Supervisor, 180heartbeats + JUNG v MATT (PL), Sharlene Jenner, Vice President - Director of Engagement Strategy, Abelson Taylor (USA), Alex Casanovas, Digital Director, Atrevia (ES), Dora Beilin, Senior Social Strategist, Barrett Hoffher (USA), Min Seo, Campaign Director, Brand New Agency (KR), Deshé M. Gully, Associate Strategist, Day One Agency (USA), Francesca Trevisan, Strategist, Different (IT), Trevor Crossman, CX and Digital Transformation Director; Olivia Hussey, Strategic Planner; Simi Srinarula, Social Media Manager, The Hallway (AUS), James Hebbert, Managing Director, Hylink (CN / UK), Mundy Álvarez, Planning Director; Pedro Rojas, Social Media Manager; Pancho González, CCO, Inbrax (CH), Oana Oprea, Head of Digital Planning, Jam Session Agency (RO), Amy Bottrill, Social Account Director, Launch (UK), Gaby Arriaga, Founder, Leonardo1452 (MX), Shantesh S Row, Creative Director, Liwa (UAE), Rajesh Mehta, Chief Strategy Officer; Dhruv Gaur, Digital Planning Lead; Leonie Mergulhao, Account Supervisor - Social Media & PR, Medulla (IN), Aurelija Plioplytė, Head of Digital & Social, Not Perfect (LI), Daiana Khaidargaliyeva, Account Manager, Osaka Labs (UK / USA), Stefanie Söhnchen, Vice President Digital, PIABO Communications (DE), Elisabeth Winiartati, Managing Consultant, Head of Global Integrated Communications; Lydia Aprina, Account Manager, Integrated Marketing and Communications; Nita Prabowo, Account Manager, Integrated Marketing and Communications; Okhi, Web Developer, PNTR Group (ID), Kei Obusan, Insights Director; Daffi Ranandi, Insights Manager, Radarr (SG), Gautam Reghunath, Co-founder & CEO, Talented (IN), Donagh Humphreys, Head of Social and Digital Innovation, THINKHOUSE (IRE), Sarah Yim, Strategy Director, Zulu Alpha Kilo (CA).
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
The search marketing landscape is evolving rapidly with new technologies, and professionals, like you, rely on innovative paid search strategies to meet changing demands.
It’s important that you’re ready to implement new strategies in 2024.
Check this out and learn the top trends in paid search advertising that are expected to gain traction, so you can drive higher ROI more efficiently in 2024.
You’ll learn:
- The latest trends in AI and automation, and what this means for an evolving paid search ecosystem.
- New developments in privacy and data regulation.
- Emerging ad formats that are expected to make an impact next year.
Watch Sreekant Lanka from iQuanti and Irina Klein from OneMain Financial as they dive into the future of paid search and explore the trends, strategies, and technologies that will shape the search marketing landscape.
If you’re looking to assess your paid search strategy and design an industry-aligned plan for 2024, then this webinar is for you.
5 Public speaking tips from TED - Visualized summarySpeakerHub
From their humble beginnings in 1984, TED has grown into the world’s most powerful amplifier for speakers and thought-leaders to share their ideas. They have over 2,400 filmed talks (not including the 30,000+ TEDx videos) freely available online, and have hosted over 17,500 events around the world.
With over one billion views in a year, it’s no wonder that so many speakers are looking to TED for ideas on how to share their message more effectively.
The article “5 Public-Speaking Tips TED Gives Its Speakers”, by Carmine Gallo for Forbes, gives speakers five practical ways to connect with their audience, and effectively share their ideas on stage.
Whether you are gearing up to get on a TED stage yourself, or just want to master the skills that so many of their speakers possess, these tips and quotes from Chris Anderson, the TED Talks Curator, will encourage you to make the most impactful impression on your audience.
See the full article and more summaries like this on SpeakerHub here: https://speakerhub.com/blog/5-presentation-tips-ted-gives-its-speakers
See the original article on Forbes here:
http://www.forbes.com/forbes/welcome/?toURL=http://www.forbes.com/sites/carminegallo/2016/05/06/5-public-speaking-tips-ted-gives-its-speakers/&refURL=&referrer=#5c07a8221d9b
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
Everyone is in agreement that ChatGPT (and other generative AI tools) will shape the future of work. Yet there is little consensus on exactly how, when, and to what extent this technology will change our world.
Businesses that extract maximum value from ChatGPT will use it as a collaborative tool for everything from brainstorming to technical maintenance.
For individuals, now is the time to pinpoint the skills the future professional will need to thrive in the AI age.
Check out this presentation to understand what ChatGPT is, how it will shape the future of work, and how you can prepare to take advantage.
A brief introduction to DataScience with explaining of the concepts, algorithms, machine learning, supervised and unsupervised learning, clustering, statistics, data preprocessing, real-world applications etc.
It's part of a Data Science Corner Campaign where I will be discussing the fundamentals of DataScience, AIML, Statistics etc.
Time Management & Productivity - Best PracticesVit Horky
Here's my presentation on by proven best practices how to manage your work time effectively and how to improve your productivity. It includes practical tips and how to use tools such as Slack, Google Apps, Hubspot, Google Calendar, Gmail and others.
The six step guide to practical project managementMindGenius
The six step guide to practical project management
If you think managing projects is too difficult, think again.
We’ve stripped back project management processes to the
basics – to make it quicker and easier, without sacrificing
the vital ingredients for success.
“If you’re looking for some real-world guidance, then The Six Step Guide to Practical Project Management will help.”
Dr Andrew Makar, Tactical Project Management
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Applitools
During this webinar, Anand Bagmar demonstrates how AI tools such as ChatGPT can be applied to various stages of the software development life cycle (SDLC) using an eCommerce application case study. Find the on-demand recording and more info at https://applitools.info/b59
Key takeaways:
• Learn how to use ChatGPT to add AI power to your testing and test automation
• Understand the limitations of the technology and where human expertise is crucial
• Gain insight into different AI-based tools
• Adopt AI-based tools to stay relevant and optimize work for developers and testers
* ChatGPT and OpenAI belong to OpenAI, L.L.C.
1. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Master di II livello in
PROGETTAZIONE GEOTECNICA
(II edizione, anno accademico 2011-12)
Studio del completamento delle vasca di colmata
di Fiumicino: Aspetti geotecnici
Relatore: Allievo
Prof. Ing. Salvatore Miliziano Tajura Getachew OSSA
2. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Il problema:
La vasca di colmata è stata costruita per il
refluimento dei terreni di scavo dal canale
del porto di Fiumicino e dalla darsena
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
3. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Situazione attuale della vasca
Il materiale dragato è attualmente
sino a quota -0.5m slm
il ristagno d’acqua meteorica fino
+0.00m slm
Provoca cattivo odore
Crea habitat non igienici
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
4. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Il nuovo porto di Fiumicino
La zona dalla vasca è inclusa nel nuovo
progetto del porto di Fiumicino che destina
la zona a piazzale di stoccaggio con quota
finale +2.00m slm con il carico di 40-60kPa
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
5. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Interventi:
Eliminare l’acqua con
riempimento di materiale
grossolana fino a quota di +2.00m
(Lavoro in corso)
Precarico per migliorare la
resistenza e ridurre il tempo di
consolidazione durante l’opere e
successiva sistemazione finale del
piazzale (oggetto della tesi)
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
6. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Caratteristiche geotecniche dei terreni di fondazione e dei
terreni di dragaggio
Sono state fatte alcune indagini geotecniche in varie
epoche
Indagine 1998
Indagine 2005
Indagine 2008
Indagine 2012
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
7. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
La stratigrafia sabbia Limosa
La falda
Sabbia - sabbia limosa
0.5 m
Mediamente addensata
Materiale dragato (Limo argilloso-sabbioso)
γ medio 19kN/m3 4.0 m
Densità relativa 40 – 60%
Angolo di attrito 34- 37°
(36°) Modulo di Young 12 Sabbia - sabbia limosa 10 m
MPa
Argilla_Limosa
60 m
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
8. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
La stratigrafia (argilla limosa)
Alluvioni recenti del Tevere per La falda
spessori elevati: 60-70 m
Argille , limo organico tenero 0.5
m
Normalmente consolidate Materiale dragato (Limo
argilloso - sabbioso) 4.0 m
La formazione di argilla limosa con frazione di sabbia
fino 20%
Contenuto di acqua naturale prossimo al limite
liquido. L’indice di consistenza molto bassa Sabbia - sabbia 10 m
Peso di volume 17.5 kN/m3 limosa
L’indice dei vuoti circa 1
La resistenza al taglio bassa
Coesione trascurabile
Angolo di attrito 23°
La caratteristiche della rigidezza Argilla_Limosa
o L’indice di compressibilità 0.27-0.5 (0.35) 60
m
o L’indice di rigonfiamento medio circa 0.06
o Il modulo edometrico è inferiore a 5MPa
o Il coefficiente di permeabilità è di 1.5 E-08m/s
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
9. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Analisi della granulometria
campio profon
ne dità (m) Argilla Limo Sabbia Ghiaia
A1 2 20 30 35 15
A2 2 25 50 22 3
H1 2 40 55 5 0
J1 2 22 50 24 4
K1 1.5 18 40 42 0
K2 2.5 20 30 42 8
B1 1 7 18 67 8
B2
Master di II livello in PROGETTAZIONE GEOTECNICA 2 5 15 75
(II edizione, anno accademico 2011-12) 5
10. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Carta di Casagrande Tabella 2 L’indice di Atterberg
Limite di Atterberg
profon
campi dità Limite Limite Indice di
one (m) liquide plasticità plasticità
A1 2 71.8 37.6 34.2
A2 2 68.6 35.3 33.5
H1 2 78.0 35.3 42.7
J1 2 61.5 31.2 30.3
K1 1.5 50.4 27.5 22.9
K2 2.5 53.7 30.6 23.1
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
11. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Modellazione geotecnica
Nella modellazione geotecnica
per tenere conto della non
linearità dell’argilla e cogliere
meglio le sovrappressioni
indotte in fase di carico, è
stato adottato il modello di
Cam Clay modificato
implementato in Flac2D.
Per la sabbia limosa è stato
utilizzato un modello elastico
lineare perfettamente plastico.
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
12. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
I parametri del modello e legame costitutivo
Materiale di riempimento
Materiale grossolano (modello elastico lineare)
Peso di volume 18 kN/m3
Modulo di Young 8MPa
Coefficiente di Poisson 0.25
Materiale sabbia limosa (elastico-lineare)
Peso di volume 19kN/m3
Modulo di Young 10 mPa
Coefficiente di Poisson 0.25
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
13. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
I parametri del modello e
legame costitutivo Limo argilloso- (materiale nella
vasca (modello Cam Clay)
Peso di volume 14kN/m3
M 0.648 (φ ‘ =17°)
Lambda 0.197
Kappa 0.049
Argilla limosa (modello Cam
Clay) N 3.363
Peso di volume 17kN/m3 mp1 1kPa
M 0.898 (φ ‘ =23°)
ν 0.3
Lambda 0.117
Kappa 0.026
N 2.649
mp1 1kPa
ν 0.3
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
14. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Modellazione numerica – Flac2d
E’ stata modellata una
colonna di terreno
ipotizzando condizioni
edometriche.
La dimensione degli
elementi della mesh è di 25
cm. La lunghezza totale
della colonna è di 75 m.
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
15. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Modellazione numerica – Flac2d
Fasi della modellazione:
•Inizializzazione del Cam Clay a partire dai valori di p’ e q in sito,
ipotizzando il terreno normalmente consolidato.
• Applicazione di un precarico fino a quota +4m slm con step di un metro
in condizioni non drenate
•Dissipazioni delle pressioni interstiziali conseguenti all’applicazione del
precarico con un’analisi di consolidazione
• Applicazione di un ulteriore precarico fino a quota +7m slm con step di
un metro in condizioni non drenate
•Dissipazioni delle pressioni interstiziali conseguenti all’applicazione
dell’ulteriore precarico con un’analisi di consolidazione
-Sono inoltre state ripetute le analisi ipotizzando che l’applicazione del
carico avvenga direttamente in condizioni drenate
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
17. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Spostamento verticale nel tempo di alcuni punti nella fase consolidazione
(materiale nella vasca)
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
18. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Sviluppo di pressione interstiziale nella argilla limosa
19. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Spostamento verticale nel tempo di alcuni punti nella fase di consolidazione
(argilla limosa)
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
20. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Cedimenti
I cedimenti complessivi sono di seguito sintetizzati:
Precarico di 4 m e consolidazione:
spostamento massimo 1.56 m
cedimento della vasca 56.9cm
tempi di consolidazione 12.5anni
cedimento della argilla limosa 85.7 cm
tempi di consolidazione 67anni
Precarico di 4 m in condizioni drenate:
spostamento massimo 1.66 m
cedimento della vasca 66.2cm
cedimento della argilla limosa 82.2cm
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
21. Cedimenti
Precarico di 7 m e consolidazione:
spostamento massimo 2.336 m
cedimento della limo argillosa 79.4cm
cedimento della argilla limosa 1.406m
Precarico di 7 m in condizioni drenate:
spostamento massimo 2.208 m
cedimento della limo argillosa 78.4cm
cedimento della argilla limosa 1.304m
22. DIPARTIMENTO DI INGEGNERIA STRUTURALE E GEOTECNICA
Conclusioni
Lunga durata di consolidazione
Non è possibile velocizzare il processo di
consolidazione per la presenza di
geomembrana sotto il dragaggio
È raccomandato limitare il carico nella zona
Possibilità di dreni orizzontali ??
Master di II livello in PROGETTAZIONE GEOTECNICA (II edizione, anno accademico 2011-12)
23. VI RINGRAZIO PER LA
VOSTRA ATTENZIONE
DIO VI BENEDICA TUTTI !!
SPECIAL THANKS TO
Prof. Ing. SALVATORE
MILIZIANO
THANKS TO
Ing: Di Sotto
Anotonello
Ing: Rotisciani Giada
