Evaluate the length of guide bund, Civil Engineering

Assignment Help:

Q. Evaluate the Length of guide bund?

For encouraging axial flow through the bridge, upstream length of guide bund may be kept 1.0 to 1.5 times the bridge length and downstream length 0.25 to 0.40 times the bridge length. Length necessary for keeping worst possible embayment behind the guide bund sufficiently away from the approach bank is also required to be ascertained by fitting of sharpest loop as indicated in Figure 5.2 in Chapter 5. If field data of acute bends in river when cut offs occurred is not available, It may be assumed that radius of such a bend can be equal to 0.4 times the radius of average bends if maximum river discharge is up to 5660 m3/s and equal to 0.5 times the radius of average bends if the maximum discharge is more than 5660 m3/s. In case of braided rivers, the length determined on basis of both the considerations of axial flow through bridge and keeping away the worst loop may be found to be insufficient for protection of long approaches. Additional protection works like spurs, revetments etc. may then become necessary.

1833_Evaluate the Length of guide bund.png


Related Discussions:- Evaluate the length of guide bund

Stress corrosion of pre-stressing steel, Stress corrosion of pre-stressing ...

Stress corrosion of pre-stressing steel Stress corrosion is crystalline cracking of metals under tensile stresses in the presence of corrosive agents. Conditions for stress cor

Water quality analysis, Water quality analysis: This water quality ana...

Water quality analysis: This water quality analysis presents an overview of physical characteristics of water, chemical substances that are normally present in water and vario

Foundation, difference between raft and pile foundation question..

difference between raft and pile foundation question..

Flash point test, Flash Point Test: The flash point is the temperatur...

Flash Point Test: The flash point is the temperature at which the bitumen gives off vapours which ignite in the presence of a flame. The flash point temperature gives the cri

Shear stress, Shear stress distribution in circular section

Shear stress distribution in circular section

Determine the soil shrinkage, Soil at a borrow area has a total unit weight...

Soil at a borrow area has a total unit weight of 120-PCF and a water content of 15 percent.  The soil from the borrow area will be used as structural fill and compacted to an avera

Human values, give the two aspects of honesty& explain

give the two aspects of honesty& explain

Define the reservoirs - hydraulic system, Define the Reservoirs - Hydraulic...

Define the Reservoirs - Hydraulic System Typically designed for multiple functions - clean water supply, creating recreational opportunities and flood protection. Reservoirs ar

Wastewater, Why is there a concern for dissolved organics and color in the ...

Why is there a concern for dissolved organics and color in the water supply and in water treatment plant?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd