What is active earth pressure?

· What is active earth pressure?

The pressure, which the soil develops in response to the movement of the earth retaining structure away from it, is called active earth pressure.

This is the minimum pressure, because earth pressure does not decrease beyond the active state with further movement of the earth retaining structure.

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problem:- A circular tank of diameter 4m contains water up to a height to 5m. Orifice of diameter 0.5m at the bottom. Find the time taken by water:- 1. To fall from 5m to 2m 2. For completely emptying to tank take cd=0.6

A circular tank of diameter 4m contains water up to a height to 5m. Orifice of diameter 0.5m at the bottom. Find the time taken by water:- 1. To fall from 5m to 2m 2. For completely emptying to tank take cd=0.6

what is venturi flume - Campare venture meter and orifice meter.

Campare venture meter and orifice meter. Venture meter:- A venturi meter is a tool used to measure the flow rate of a pipe fluid. It cosist of three parts- (1). A short converging part (2). Throat (3). Diverging part It is based on the principle of bernaulli’s equation. Orifice meter:- It is an instrument used to measure the fluid flow rate through a pipe. It's cheaper than a venture meter device. It also operates in the same way as the venture meter principle. Venture flume A venture flume is a critical flow, open flume with a restricted flow, resulting in a fall in the line of hydraulic grade, producing a critical depth. It is used in very high flow rates flow measurements, generally provided in millions of cubic units.

Determine the height of a rectangular weir of length 6m to be built across a rectangular channel. Maximum depth of water on the upstream side of the weir is 1.8 and discharge is 2000 l/sec . Take Cd = 0.6 and neglect end contractions.

Determine the height of a rectangular weir of length 6m to be built across a rectangular channel. Maximum depth of water on the upstream side of the weir is 1.8 and discharge is 2000 l/sec . Take Cd = 0.6 and neglect end contractions.

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