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

Define and classified parallel forces, Define and classified parallel force...

Define and classified parallel forces Sol.: The forces, the lines of action of which are parallel to each other, are called as parallel forces. They do not meet at one point

Determine the forces on bar, Determine the Forces On Bar Two bars and ...

Determine the Forces On Bar Two bars and a cable are used to support a block as shown. The two bars have negligible weight and the pulley is free to rotate. The mass of the pu

M.o.s, Draw the shear force and bending moment diagrams for overhanging bea...

Draw the shear force and bending moment diagrams for overhanging beam subjected to pont load at its free end

Essentials of a good boiler , ESSENTIAL S OF A GOOD BOILER: -     Sho...

ESSENTIAL S OF A GOOD BOILER: -     Should be capable of producing the required Steam at   the required pressure for minimum fuel required. -     Should be capable of stan

Calculating the number of kanban card sets, Calculating the number of kanba...

Calculating the number of kanban card sets: A hospital desires to set up a Kanban system to manage its supply of blood with the regional blood bank. The regional blood bank tr

Thermodynemics, explain the following terms in brief:- point function and p...

explain the following terms in brief:- point function and path funtion

Annealing temp, hiw can i fix the maximum temp of the aluminium

hiw can i fix the maximum temp of the aluminium

Problem type-aspects of scheduling , Problem Type Aforementioned illust...

Problem Type Aforementioned illustration relates to the class of non-cyclic scheduling problems characterized via the subsequent features. (a) The Flexible Manufacturing Sys

What is air intakes, Q. What is Air Intakes? Air is drawn from the atmo...

Q. What is Air Intakes? Air is drawn from the atmosphere for a variety of process and equipment uses, including: • Combustion air (fired heaters, boilers, gas turbines, int

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