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

Connecting rod, how to design a steel connecting rod using minimum weight a...

how to design a steel connecting rod using minimum weight and thickness?

Planning a retail interior space, Question 1: A good display of the mer...

Question 1: A good display of the merchandise is the result of planning, cooperation and coordinating. A good schedule of work is important for a good design with the use of me

Illustrate the process of insulation on pipe, Q. Illustrate the process of ...

Q. Illustrate the process of insulation on pipe? Factory fabricated sectional pipe insulation shall be applied in staggered joint construction and secured with wire loops or ba

Show maximum allowable working pressure, Q. Show Maximum Allowable Working ...

Q. Show Maximum Allowable Working Pressure? The MAWP to be marked on the Section VIII nameplate is defined as the maximum gauge pressure permissible at the top of a completed v

Scope of pipeline systems, Q. Scope of pipeline systems? This specifica...

Q. Scope of pipeline systems? This specification covers the specific materials, surface preparation, method of application, quality assurance, and repair necessary for the appl

Kinetics of Rectilinear motion, Advantages of work energy principle over D'...

Advantages of work energy principle over D''alambert''s principal.Explain in detail

# ic engines, what are the di #Minimum 100 words accepted#

what are the di #Minimum 100 words accepted#

Initial tension in the belt, Initia l Tension in The Belt: Let T o =...

Initia l Tension in The Belt: Let T o = initial tension in belt T 1  = Tension in tight side T 2  = Tension in slack side T C  = Centrifugal Tension in belt T

Define stress, Define stress: Sol.: When body is acted upon by load ...

Define stress: Sol.: When body is acted upon by load or external force, it undergoes deformation (that is, change in shape or dimension) which increases gradually. At the ti

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