The Effect of Particle Size and Strength on Soil Strength
Вставка
- Опубліковано 15 тра 2024
- In the fourth video in the Bare Essentials of Soil Mechanics series, Professor John Burland demonstrates how soil grading (the range of particle sizes in a soil) and soil shape affect a soil's ability to resist load. More engineering teaching resources available on expeditionworshed.org
In this video Professor Burland uses his base friction model, introduced in video 3 to model how changes to a soil affect its ability to resist the weight of a foundation pressing down on it. He compares the strength of a well-graded soil with a uniformly graded soil and demonstrates that a well-graded soil has greater ability to resist load.
Using the same model Professor Burland demonstrates the effect of particle shape on soil strength by comparing the behaviour of a soil made of round particles with the behaviour of a soil made of circular particles. The conclusion is the more angular the soil particles, the stronger the soil.
Learning outcomes
This video will help learners answer questions such as:
What is a uniformly graded soil?
What is a well-graded soil?
How does soil grading affect soil strength?
How does particle size affect soil strength?
How does particle shape affect soil strength?
About the Bare Essentials of Soil Mechanics Series
This video is part of the Bare Essentials of Soil Mechanics series, funded by the Ove Arup Foundation, in which Professor John Burland draws on his many years of practice in geotechnical engineering and teaching to provide listeners with what he regards to be the key knowledge that geotechnical engineers need to understand about soil mechanics in engineering practice.
Prof Burland is based at Imperial College London and has worked on hundreds of interesting projects, the most famous of which was stabilising the Leaning Tower of Pisa.
This work is licensed under the Creative Commons Attribution-NonCommercial 3.0 Unported License. To view a copy of this license, visit creativecommons.org/licenses/b...
Credits
Written and presented by: Prof John Burland, Imperial College, London.
Concept design: www.thinkup.org/
Graphic design:thomasmatthews.com/
Direction/Production: www.ariesfilms.com/
Image credits: coming soon
Professor can I ask for more videos? this channel is pure gold!
more videos please such great minds knowledge needs to be documented for universal benefit
Very nice video, it's easy to understand. I'm a laymen but I'd love to know more about agronomy and geology in general
Very clear and straight forward explanation. thanks sir
Thanks very much! I've watched three videos today by Prof Burland and they've all been very help.
John Burland is one of the brilliant persons who explain the main concept of soil from the first principal of Mechanics ....
Excelente vídeo, por favor podrían subir futuros vídeos subtituladas, se les agradece mucho desde Perú
Thank you Sir, i was building in Fiji and we struggled to make good concrete using coral for aggregate.
The shapes were too rounded compared to NZ where we had sharp edged rock in the mix. This clearly explains that .
con solo un video, explico bastante. Excelente
Nice explanation sir
Wow where was this when I was in school lol. Studying for PE now and feel this will definitely help.
Oh This is so cool to see 👍🏻
I viewed your channel mate, really love the content. Subbed straight away, We should connect!
website not opening
please help
I don't understand one thing. After loadiing why are we measuring the horizontal displacement rather than vertical displacement? some one please explain.
Look again. The vertical displacement is indeed measured.
Meritorious
Just like what the GOD says in the HOLY QURAN in Surrah al hij sign 5 GOD says ( we make the soil vibrating by the water )
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The lesson is this model is crap. It’s so inadequate