Excavations in Construction Soil Classification

This video describes the types of soil classification and how to test the soil to find out what type it is.
0:02 - Introduction
1:37 - Competent person
1:52 - Appendices
2:20 - Visual inspection
2:53 - Cohesive soil
3:07 - Granular soil
3:21 - Unconfined compressive strength
3:36 - Classification of soil
3:56 - Soil types
5:23 - Preliminary tests
6:19 - Soil test
6:57 - Plasticity test
7:42 - Thumb penetration test
8:26 - Pocket penetrometer
10:01 - Summary
10:51 - OSHA contact information
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[@mz8755]

A competent person...

[@HOWTOEngineering]

good explain

[@salmanzahid7969]

Great information

[@rahelgmeskel2930]

Good presentation thank u

[@tahseenjawaduppal6536]

Best explaination.

[@mohammadshahjahan6497]

Nice sir.....

[@richardkawucha1232]

One thing that was a constant, when I would arrive at excavation sites. I'd look at/photograph the excavation, spoils, trench protection (if any), then ask the competent person, "What kind of soil are you digging in?" Many times the response was, "What kind do you think I'm digging in?"
To me that's always a wrong answer.

[@engrmdzahirkhan1997]

Hi

[@andreasshikambokatutu6464]

Godbless

[@Tubeytime]

Question: where can you find one of these "competent persons"?

[@xosafety6628]

They are designated by the employer.

[@Tubeytime]

@@xosafety6628 Does the employer also ahve to be a competent person?

[@xosafety6628]

@@Tubeytime No.

[@Tubeytime]

@@xosafety6628 Ah. That explains a lot, thanks!

[@pathickman641]

A Competent person is trained in soil classification in ways to perform plasticity testing, thumb penetration testing or use of soil testing equipment. They are also trained in recognition of soil types and have the ability to stop excavation if the see unsafe conditions.