Dams are made stronger and thicker at the bottom than at yhe top why?
Answers
Answer:
A dam is thicker at the bottom than at the top because the forces exerted are strongest close to the ground. Water pressure increases proportionally with depth, so the lower portion of the dam has greater water pressure exerted upon it. The increasing thickness of the lower dam also helps it support its own weight.
Dam construction reflects the variety of forces that act upon it. Some, such as water pressure and the weight of the dam itself, become steadily greater toward the bottom of the dam. Other forces, such as those exerted by earthquakes and ice formation, are intermittent and often difficult to predict. Earthquake forces are particularly difficult to plan for because they happen unexpectedly and may travel in any direction.
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Answer : Dams are tall so when the water will come it will exert a huge amount of pressure at the bottom of surface because the more the depth the higher the pressure therefore, bottoms of dams are stronger and thicker so that the pressure of water doesn't break the dam.