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

Show the design of the control rooms, Q. Show the design of the control roo...

Q. Show the design of the control rooms? The design of the control rooms in any plant is very important. The control room operator(s) must be able to control and manage safety

Creating a new style-autocad, Creating a new style To create a new dime...

Creating a new style To create a new dimension style, make sure the STANDARD style is the current style, click in the Name edit box then type the name of the new style you want

Metal cutting, what is tangential force in metal cutting

what is tangential force in metal cutting

Springs, write notes on close-coiled springs ,open-coiled springs semi ell...

write notes on close-coiled springs ,open-coiled springs semi elliptical leaf springs ,quarter elliptical leaf springs .how to determine shear stress deflection stress energy and

What is injection moulding, Q. What is Injection moulding? An important...

Q. What is Injection moulding? An important industrial method of producing articles of thermoplastics is injection moulding. The moulding material is loaded into a hopper from

Welding, difference between blow hole and porosity

difference between blow hole and porosity

Calculate absolute amplitude of mass, A 2 Kg mass is suspended in a box by ...

A 2 Kg mass is suspended in a box by a spring as shown in figure. The box is put on a platform having vibration y = 0.8 sin 6t cm. calculate absolute amplitude of mass

Coefficient expansion of transformer oil, What is the coefficient expansion...

What is the coefficient expansion of transformer oil? Ans) Transformers can be filled with several types of Refined Mineral Oil. That coefficient is something you would find in

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