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Why does the foundation of a very large building often go all the way down to the bedrock?
Wiki User
∙ 12y ago
Because large buildings weigh a lot. Subsoil has varying degrees of 'bearing capacity' - the amount of weight it can carry. If you put a lot of weight on a subsoil of low bearing capacity it will compact, or be pushed aside. If the subsoil on the site of a large building has insufficient bearing capacity to carry the loads imposed on it by the building then the foundations would have to be taken to bedrock as this has 'unlimited' bearing capacity.
Wiki User
∙ 12y ago
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Does Chemical weathering in bedrock below the land surface often begins along joints and sheeting fractures?
yes
What are glacial striations and glacial erratics?
Striations are "scratches" left in bedrock by glaciers. A small particle of rock, generally pebble sized or smaller, becomes entrained in the base of the glacier and dragged along the surface of the bedrock. These can often be seen on hard bedrock surfaces that are resistant to subsequent weathering after the retreat of the glacier. Erratics are large rocks that are found out of place in the landscape, i.e. not near where they were formed. They are removed from their provenance by a glacier and transported away, before being deposited in a different part or the landscape when the glacier melts.
Why are outcroppings important places for geological study?
Outcropping is an expoed area of bedrock. Bedrock is the layer, or layers, of rock usually found underground, and therefore exposed to much less weathering. Bedrock often contains geological information that's millions, or even billions, of years old.
What is the size of crystals in granite?
The size of crystals that form granite are usually large and coarse-grained. Granite, which is mainly composed of feldspar, mica and quartz, is often used as a building material.
What is a large area of land with a large house on it?
a large area of often with a large house on it
What is the importance of bedrock?
Bedrock is important because it is just that, rock. The term bedrock is used to descibe any type of solid rock that lies beneath the loose topsoil. It is important because bedrock is what allows buildings to have solid foundations. Bedrock is particularly important to big buildings since the topsoil often cannot support the weight of the building and unless the foundation are dug down to bedrock the building would actually sink in the ground. In some areas, such southern Louisiana, the bedrock is so deep that it cannot be reached, in these cases the buildings rely on what are called friction pillings. Friction pillings are long poles or columns that are driven so deep into the ground that although they're not resting on bedrock the force of friction from the surrounding dirt prevents them from moving. I believe this is the technique that was used to build the new football stadiumin New Orleans.
What is unsymmetrically loaded?
when the load distribution to the foundation is not uniform , it is refered to as unsymmentrical loading. It often leads to differential settlement of the foundation, spoiling the structural features of the building significantly...
What were large apartment building that were often loud dirty and crowded called?
Large apartment buildings that were often loud, dirty, and crowded were called tenements.
Who went in the roman baths?
Roman cities had public baths, which were often inside a large stone building. It was also often crowded, as it were public.
What is the term used for solid rock beneath the earth's surface of soil and gravel?
It is usually called bedrock. When bedrock is very close to the surface it is often referred to as ledge.
What is a religious building?
A religious building is a structure specifically designed and used for religious worship and activities. Examples include temples, churches, mosques, synagogues, and shrines, which serve as places for believers to come together to practice their faith, seek solace, and connect with their spirituality.
What is a word beginning with the letter e for a large or imposing building?
The most common word for this is "edifice," meaning "a building, especially a large and imposing one." The word edifice is also used to refer to a complex belief system, often large and imposing in their own ways.
How deep is a bog?
Bogs can be miles deep, often only reaching bottom until they hit bedrock.
Where in a building would you find a spandrel?
A spandrel is found on the exterior of the building in long horizontal pieces. These massive pieces often support a large amount of weight compared to wall panels.
Where did the town meetings take place in Massachusetts colony?
Often in a church building, the most common large meeting place available.
Does Chemical weathering in bedrock below the land surface often begins along joints and sheeting fractures?
yes
What are glacial striations and glacial erratics?
Striations are "scratches" left in bedrock by glaciers. A small particle of rock, generally pebble sized or smaller, becomes entrained in the base of the glacier and dragged along the surface of the bedrock. These can often be seen on hard bedrock surfaces that are resistant to subsequent weathering after the retreat of the glacier. Erratics are large rocks that are found out of place in the landscape, i.e. not near where they were formed. They are removed from their provenance by a glacier and transported away, before being deposited in a different part or the landscape when the glacier melts.
