Determine the dead load - sewer construction, Mechanical Engineering

Assignment Help:

Determine the dead load:

A 250 mm diameter sewer is placed in a 2.75 m deep rectangular trench that is 0.65 m wide. This trench is backfilled with saturated clay having a unit weight of 20.4-kN/m3. Determine the dead load due to the backfill that the sewer must support. What class of bedding is to be specified if the crushing strength of this pipe is 23.2 kN/m, and the value of safety factor to be used is 1.5?

Solution

Here,  H = 2.75 m - 0.25 m

= 2.50 m

∴ H/B = 3.85

From Figure 6.16, we read C = 2.65

We have W = 2.65 × 20.4 × (0.65)2 = 22.84 kN/m

Safe Supporting Strength = (Load Factor × Crushing Strength)/Safety Factor

Load factor = 1.48

Therefore, we specify Class C bedding for the given sewer line.


Related Discussions:- Determine the dead load - sewer construction

What is thermoplastic plastics, Q. What is thermoplastic plastics ? Thes...

Q. What is thermoplastic plastics ? These plastic soften under heat, harden on cooling, and can be resoften under heat. Thus, they retain their fusibility, solubility, an

Confined space standard, Confined Space Standard Various examples of ...

Confined Space Standard Various examples of workplace exist in industrial practice where spaces are characterized by several restrictions. Such spaces are identified as: manh

Metallurgical compatibility, Metallurgical Compatibility The two facet...

Metallurgical Compatibility The two facets of property as above could be made analogous crudely to an athlete's wholesome strength, which includes both his physical fitness an

Copper and its production, Copper And Its Production Copper is marked ...

Copper And Its Production Copper is marked via a host of good engineering properties. The foremost is copper's good electrical conductivity and bulk of copper is utilized as e

Characterised punching shear failure in bearing capacity, How can punching ...

How can punching shear failure are characterised in bearing capacity? Punching Shear Failure This mode of failure is characterised by large deformations beneath the footing

What are the types of boundary layer, What are the types of Boundary Layer ...

What are the types of Boundary Layer and what do you understand by separation of Boundary layer. Can you Derive Hagen Poiseulle formula. Aslo illustrate Reynold's No.

Evaluate stress induced in rod, Evaluate stress induced in rod: The t...

Evaluate stress induced in rod: The two copper rods and one steel rod lie in vertical plane and support load of 50kN together as shown in figure given below. Each rod is 25 m

Show modular structures layout, Q. Show Modular Structures layout? Outs...

Q. Show Modular Structures layout? Outside dimensions and weight of truckable modules shall not exceed limits specified, Modular Structures in GS-904-0103. Minimum head clearan

Heat loss in cylindruical pipe, Explain which laws of physics are used to d...

Explain which laws of physics are used to discuss heat loss in a pipe, and briefly explain how the famous equation for the loss of heat in a cylindrical pipe is derived. Explain th

Concept of process - thermodynamics, Concept of process - Thermodynamics: ...

Concept of process - Thermodynamics: A process can be defined as change in the state or condition of a substance or working medium. For instance, heating or cooling of thermod

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