Hydraulic Structures 3rd. Edition by Pavel Novak | 9780203228333 | 0203228332 | Holooly

Hydraulic Structures

51 SOLVED PROBLEMS

Question: 10.7

Design a Sarda-type fall using the following data: full supply discharge = 28 m³s^-1 ; upstream FSL = 100.00 m AOD; downstream FSL = 98.50 m AOD; upstream bed level = 99.00 m AOD; downstream bed level = 97.50 m AOD; upstream bed width = 6.00 m; downstream bed width = 6.00 m; drop, Hdr = 1.50 m; ...

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CREST DESIGN Adopt a rectangular crest (Fig. 10.18...

Question: 15.3

An embankment at 10 m OD along an east-facing bay is to be protected against erosion and flooding. The table below gives fetches, wind speeds, and refraction coefficients for obtaining design wave heights: (a) Provide a hydraulic design of sea wall protecting the embankment. The maximum still-water ...

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(a) The wave heights and periods are calculated us...

Question: 9.2

The figure below (Fig. 9.15) is a proposed weir floor with three vertical pilings. Examine the uplift pressure distribution under the floor of the weir and compare the result with Bligh’s creep flow theory. Pressure distributions at key points: (A) UPSTREAM PILING 1 ( B ) INTERMEDIATE PILING–PILE ...

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(A) UPSTREAM PILING 1 Figure 9.6 gives the pressur...

Question: 9.1

This example considers the design of a glacis-type weir. The following data are used: maximum flood discharge = 1800 m³s^-1 ; HFL before construction =300.00 m AOD; river bed level = 293.00 m AOD; normal upstream pond level = 299.00 m AOD; allowable afflux = 1 m; permissible exit gradient = 1 in 6 ...

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The régime width (equation (9.9)) of the upstream ...

Question: 9.3

Design an intake structure for a minor canal, using the following data: ...

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The upstream full supply depth, D = 120.96 - 120.0...

Question: 16.1

A river, transporting sediment, flows into a tidal estuary. The maximum freshwater flow into the estuary is 4000 m³ s^-1. It is required to make a preliminary design of a scale model in a laboratory where the space available dictates the horizontal scale, Ml=250; the pumping capacity available for ...

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1. Utilizing fully the discharge capacity gives a ...

Question: 15.4

Produce a preliminary design for a sea outfall. The dry weather flow through the outfall is 0.1 m³ s^-1 and the peak flow is 0.5 m³ s^-1 . Site investigations show that a sea outfall extending to 2 km seaward would not cause pollution of foreshore and recreational waters. The still water depth ...

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Cederwall equations (15.35) and (15.36) are used t...

Question: 15.2

At a depth of 20 m, waves of height 1.31 m and period 7 s are observed to travel inshore. Estimate the run-up of the waves on the composite slope as shown in Fig. 15.14. ...

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At the place of observation, H = 1.31 m, d = 20 m ...

Question: 15.1

A storm in deep water generates waves which travel towards the shore, impinging on a breakwater. The breakwater is a vertical wall erected on a rubble mound (Fig. 15.09b). The storm has a wind speed of 10 m s^-1 and a fetch of 100 km. The base of the vertical wall and the sea bed are respectively ...

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As given below, fetch = 100 km and wind speed = 10...

Question: 14.4

During construction of a pier, one of the vertical steel piles, diameter 0.508 m, thickness 12.5 mm, and length equal to the depth of water of 10 m, is subjected to a current of 0.5 m s^-1 . The mass of the pile is 195 kg m^-1 . The modulus of elasticity is 200 10^9 N m ^-2. The second moment ...

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The inner diameter of the pile is 0.508 - 2 × 0.01...

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