average_human
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Could someone help me answer these questions? Thanks

How can an earthquake affect urban water supplies?
How can it affect gas & electricity supplies?
How can a viaduct & overpass support columns be strengthened in a retrofit project?

thanks
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djuebsja
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an earthquake can affect urban water supplies as fractures in the ground can result in burst pipes meaning water supply is compromised. In the same way this can affect gas and electricity supplies as lines and pipes may be adversely affected
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tvkradi22
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I don't know how detailed you want the answers, but here are a few thoughts off the top of my head:

Urban water supplies: could cause land slides and dirt and sediments getting into the water supplies. Trees and vegetation and other debris could block of supplies to houses. Could damage sewage systems and spill into water supplies. If houses and buildings are damaged, their connection to energy and water could be cut off.

Gas and electricity supplies: knocking over electricity poles (especially in LICs, since M- and HICs are less likely to have electricity running above ground). Damaging and/or breaking energy pipelines. If houses and buildings are damaged, their connection to energy and water could be cut off.

Viaduct and overpass support columns: (not an expert, but some ideas...) Support with steel or other strong metal beams, especially forming the strong triangular shape.

It's not a lot, but I hope that helps. If you have any more questions concerning Geography (or anything else), let me know. I am currently doing Year 13 Geo, so I have a bit of experience. Don't know how much these answers will help, but I hope they do.
May I ask what you need the answers for? Are you writing an essay? Have you done research online?
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average_human
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(Original post by tvkradi22)
I don't know how detailed you want the answers, but here are a few thoughts off the top of my head:

Urban water supplies: could cause land slides and dirt and sediments getting into the water supplies. Trees and vegetation and other debris could block of supplies to houses. Could damage sewage systems and spill into water supplies. If houses and buildings are damaged, their connection to energy and water could be cut off.

Gas and electricity supplies: knocking over electricity poles (especially in LICs, since M- and HICs are less likely to have electricity running above ground). Damaging and/or breaking energy pipelines. If houses and buildings are damaged, their connection to energy and water could be cut off.

Viaduct and overpass support columns: (not an expert, but some ideas...) Support with steel or other strong metal beams, especially forming the strong triangular shape.

It's not a lot, but I hope that helps. If you have any more questions concerning Geography (or anything else), let me know. I am currently doing Year 13 Geo, so I have a bit of experience. Don't know how much these answers will help, but I hope they do.
May I ask what you need the answers for? Are you writing an essay? Have you done research online?
thank you, these are really helpful! I was just answering questions for homework
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