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Q U A R R I E S. By Class 9 Greatstone School. What is a quarry?. A quarry is a place where materials are taken from the ground to be used by humans. Normally the material is excavated from the ground. Different materials are used and they can be changed. Quarries are very dangerous places. - PowerPoint PPT Presentation
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QUARRIES
ByClass 9
Greatstone School
What is a quarry?
A quarry is a place where materials are taken from the ground to be used by humans.
Normally the material is excavated from the ground. Different materials are used and they can be changed.
DANGER
Quarries are very dangerous places.
Do
Not
Ent
er
You must ask permission to visit a quarry and you
will need a guide.
The material that is taken from a quarry is called aggregate. It is used for all sorts of things.
The aggregate can be broken down into different sizes. This means it can be used for lots of things.
BrettsLydd Quarry
Bretts Quarry at Lydd This quarry collects aggregate and changes it to be used for many different things.Safety is the most important thing.The quarry employs lots of local people.They care for the environment and make sure that the land is left as a natural habitat.
Health and Safety
All visitors must report to the office. You must not trespass.Everyone wears a hard hat, a high visibility jacket and suitable footwear.Safety notices are everywhere to keep you safe.Machinery has safety stop equipment.Lorries and moving equipment have warning sounds.Staff carry walky-talkies.
These are different sized materials from Lydd Quarry
It starts when they check what is under the surface by digging down bore holes.Then they know what is under the surface.Then they get Glen to come and check the area. Glen is an archaeologist.
Then the aggregate is dug out with big excavators.
Large machines called shovels move the aggregate and put in into a hopper.
The aggregate is dropped onto a conveyer belt which takes it miles to the main site.
At the main site the aggregate is sorted. Then it can be crushed into smaller sizes ready to be collected. It is kept in piles of different sizes.
This shovel is amazing. It can weigh the sand as it fills up the lorry.
The lorries line up to collect material. Lydd Quarry is really busy.
Bretts make sure that the quarry is returned to a natural habitat for wildlife once they have finished with each area.
Class 9 had a fantastic time learning aboutquarries at Bretts in Lydd.
We would like to thank the people at Groundwork for making it possible and especially Jenny Glanfield who helped for five weeks.We also thank the National Lottery for donating money to cover the costs.A huge thank you goes to everyone at Bretts Quarry, Lydd.We would also like to thank all the adults who helped us on our trip.
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