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

Occupational safety - industrial safety, Occupational Safety - Industrial S...

Occupational Safety - Industrial Safety The bad and most debilitating experience related to work which a worker can have is a work-related accident or illness. Within the effe

Elastomers, define elastomer.explain in details?

define elastomer.explain in details?

Illustrate about the three authors of iges, Illustrate about the three auth...

Illustrate about the three authors of IGES In 1977, the three authors of The Initial Graphics Exchange Specification were recognized collectively for their contributions to the

Determine the fluctuation in rail pressure under one wheel, An inside cylin...

An inside cylinder locomotive has its cylinder centre lines 0.70m apart and has a stroke of 0.60m. Rotating mass per cylinder = 150kg Distance between wheel Centre lines = 1.

Som, Strain energy stored in a body due to impact load

Strain energy stored in a body due to impact load

Belt and types of belt for transmission of power, Q.    What is belt? How m...

Q.    What is belt? How many types of belt are used for the transmission of power? Sol:   The power or rotary motion from one shaft to the other at a considerable distance is

Laser surface treatment-transformation hardening, Transformation Hardening ...

Transformation Hardening The main features of the laser as a heat source for transformation hardening are: (A) Clean energy source. (B) Energy is localised: no heat spillage.

Weld defects, WELD DEFECTS The common defects encountered in submerged ar...

WELD DEFECTS The common defects encountered in submerged arc welding are: a. Slag inclusion b. Porosity c. Cracking of welds.   a). Slag Inclusion : Slag in

Batteries and alternative sources of energy, Illustrate six typical applica...

Illustrate six typical application of primary cells. (b) Illustrate six typical applications of secondary cells. (c) Illustrate the advantages of a fuel cell over a conventional

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