Why water tanks are still designed by the working stress method?
Generally, for measurement of infiltration on the field we use the Cylindrical Infiltrometer of diameter 30 cm and 60 cm. Basic infiltration rate for a different type of soil are as below: If the infiltration rate is 1-5 mm/hour that it is Clay. If the infiltration rate is 5-10 mm/hour that it is ClRead more
Generally, for measurement of infiltration on the field we use the Cylindrical Infiltrometer of diameter 30 cm and 60 cm. Basic infiltration rate for a different type of soil are as below:
- If the infiltration rate is 1-5 mm/hour that it is Clay.
- If the infiltration rate is 5-10 mm/hour that it is Clay Loam.
- If the infiltration rate is 10-20 mm/hour that it is Loam.
- If the infiltration rate is 20-30 mm/hour that it is Sandy Loam.
- If the infiltration rate is greater than 30 mm/hour that it is Sand.
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Here, because water tanks are more vulnerable structures and plus the tank is sometime overfilled and sometime empty, the pressure inside is so varying, It needs more safety precautions and as we all know working stress method assumes more safety factor than limit state design, which is an economicaRead more
Here, because water tanks are more vulnerable structures and plus the tank is sometime overfilled and sometime empty, the pressure inside is so varying,
It needs more safety precautions and as we all know working stress method assumes more safety factor than limit state design, which is an economical design, we prefer to use working stress method…
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