describe the phenomenon of liquefaction in earthquakes and why it occurs. what happens? how can it affect buildings? what can be done to prevent damage to buildings in areas prone to liquefaction?



Answer :

When an EQ causes shaking, the ground liquefaction, turning it into quicksand. Grainy materials contract as they settle, which causes water to rise to the surface. When an EQ ends, poorly constructed structures may tilt and be struck in a titled posture.

Liquefaction occurs when waterlogged, loosely packed sediments at or near the ground's surface start to lose strength as a result of violent ground shaking. During earthquakes, liquefaction beneath buildings and other structures can result in significant damage. During an earthquake, liquefaction is the process that makes soil behave more like a liquid than a solid. Sand and silt grains in damp soil underground are rearranged by the shaking, and the water between the grains is squeezed. Liquefaction is the term for the phase transitions from solid to liquid (melting) and from gas to liquid (condensation, respectively). The temperature and pressure at which a solid transforms into a liquid is known as the melting point (sometimes referred to as the liquefaction point). Prostate-derived serine proteases in the female reproductive tract are active enzymatically during the proteolytic process of semen liquefaction, which causes a gel-like ejaculated semen to turn watery.

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