Major functions of features observed in a typical manhole, Civil Engineering

Assignment Help:

Question

What are the major functions of following features observed in a typical manhole?

Answer

(i) Groove near benching, (ii) R.S.J. (iii) double seal manhole cover and (iv) u-trap with rodding arm.
(i) The groove is used to make possible maintenance of manholes and sewer or drain pipes. Shutoff boards are straight on grooves throughout preservation operation so water flow coming from upstream is terminated in manhole and backwater from downstream is also blocked. In adding, groove also facilitates water flow diversion for routine preservation operation.
(ii) R.S.J. is a small-scale size of worldwide beams and is used for resist high stresses incurred by deep traffic loads performing directly on upper narrow projected section of manholes.
(iii) Double seal terminal manhole coat are used for sealing off gases emitted inside sewer or drains and prevent them from free out of manhole.
(iv) U-trap with rodding arms is used for sealing off unpleasant gas smell by trapped u-shaped water columns. Rodding arm is usually closed with rubber rings during regular operation. Though, during protection operation, rubber ring is separate and rodding can be carried out during rodding arm

 


Related Discussions:- Major functions of features observed in a typical manhole

M, symbols of electrical layout

symbols of electrical layout

Verify the magnification and transmitted force, The exciting force in a con...

The exciting force in a constant force type of excitation was 120 kN. The natural frequency of the machine foundation is 4 Hz. The damping factor is 0.36. Verify the magnificati

Minimisation of differential settlement, Minimisation of Differential Settl...

Minimisation of Differential Settlement You are aware that differential settlement causes more distress to the structure, when compared with that of total settlement. The var

Strength of materials, Didtribution of shear stree over a triangular sectio...

Didtribution of shear stree over a triangular section

Machanics, write a short on vector representation of force(addition and sub...

write a short on vector representation of force(addition and substraction )

State the term - terminology, State the term - Terminology There are ma...

State the term - Terminology There are many technical terms whose understanding provides us with a good insight of  the subject. Some of  these terms are, indeed, general and t

Principal stresses and strains, Principal Stresses and Strains: Princi...

Principal Stresses and Strains: Principal Stresses and Strains is a very important link in the analysis of solids so as to make sure safe design of different components of str

Surveying, earthen dam and gravity dam

earthen dam and gravity dam

Evaluate break even point, Evaluate break even point: A vehicle manufa...

Evaluate break even point: A vehicle manufacturing firm purchase axle from a shaft manufacturing industry at Rs.100 each. If it establishes the essential apparatus for the pro

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