0
It is all about the arch. Throughout the history of building people figured out that an arch is the strongest form of support for a doorway or tunnel. The reason is that any weight on the arch is all directed to the middle so that the entire arch is helping to support the weight. If you have a straight line roof, weight at the center is supported only at the area that is in contact with the weight.
Add your answer:
Earn +20 pts
Civil engineers work with structural geologists to?
plan bridges, tunnels, and dams
Definition of temporary building?
Structures used to facilitate the construction of buildings, bridges, tunnels, and other above- and below-ground facilities by providing access, support, and protection for the facility as well as assuring the safety of the workers and the public.
What is a Tunnel boring machine?
A tunnel boring machine (TBM) is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They can bore through hard rock, sand, and almost anything in between. Tunnel diameters can range from a metre (done with micro-TBMs) to 19 metres. Tunnels of less than a metre or so in diameter are typically done by horizontal directional drilling rather than TBMs. Tunnel boring machines are used as an alternative to drilling and blasting (D&B) methods in rock and conventional 'hand mining' in soil. A TBM has the advantages of limiting the disturbance to the surrounding ground and producing a smooth tunnel wall. This significantly reduces the cost of lining the tunnel, and makes them suitable to use in heavily urbanized areas. The major disadvantage is the upfront cost. TBMs are expensive to construct, difficult to transport and require significant infrastructure. The biggest is built by Herrenknecht AG of Schwanau, Germany to dig the 57km Gotthard Base Tunnel. It has a diameter of 19 meters.
Importance of surveying for civil engineers?
importance of surveying in engineering development
How do you calculate the galvanized steel round pipes?
You need to know the thickness of the chequered plate to calculate weight. As a thumbrule, for 12mm thick chequered plate, you can consider 10 kg per sq.ft. Multiply by area to get the total weight. +++ You cannot mix units like that. You give the dimensions in mm and kg then introduce feet - it should be all Imperial or all metric.
What are three kinds of tunnels used in subsurface mining?
they are vertical tunnels, angle tunnels, and horizontal tunnels. THE END
Are there tunnels elsewhere in Saskathewan other than The Tunnels of Moose Jaw?
yes there are tunnels
When is Tunnels the move coming out?
when they finish making the tunnels
Is there tunnels in toontown?
Depends on what you mean by tunnels. There are the short tunnels that allow you to move from playground to street and vice-versa.
Does New Orleans have any tunnels?
Not tunnels for auto traffic. There are two auto tunnels on the westbank of the Mississippi River.
When did Tunnels of Doom happen?
Tunnels of Doom happened in 1982.
When was Tunnels of Doom created?
Tunnels of Doom was created in 1982.
When was Tunnels of Armageddon created?
Tunnels of Armageddon was created in 1989.
When did Tunnels of Armageddon happen?
Tunnels of Armageddon happened in 1989.
When was Tharolian Tunnels created?
Tharolian Tunnels was created in 1982.
When did Tharolian Tunnels happen?
Tharolian Tunnels happened in 1982.
When was Drakelow Tunnels created?
Drakelow Tunnels was created in 1943.
