Irrigation Engineering Handwritten Pdf
Irrigation Engineering Handwritten Classroom Notes for IES GATE PDF
In the case of horizontal curve design lateral coefficient of 0.15 is recommended. The coefficient of friction is less when the pavement surface is smooth and wet. Also decrease with increase in temperature, tyre pressure and load.
New tyres are more dependable than smooth and old ones in adverse surface and conditions like wet. Smooth and worn out tyres offer higher friction factor on dry pavement than a new tyre with threads.
Irrigation Engineering Handwritten
Measured by unevenness index which the cumulative vertical undulations of the pavement surface per unit horizontal length of the road it should be low for good pavement=150cm/km.
Irrigation Engineering Handwritten Classroom Notes
To drain off the rainwater from the road surface. Better surface drainage is important from considerations of ->prevention of entry of surface water into subgrade soil through pavement.->to make the surface dry soon after the rain so that skid resistance does not reduce.
The profile will be flat at the middle and steeper towards the edges. It is prefered by fast moving vehicles as they have to frequently cross the crown line during overtaking operations.
Irrigation Engineering Handwritten Classroom
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