Introduction: Role of railways in transportation, Indian Railways, selection of routes. 1 Hour Permanent way: Introduction, requirements for an ideal permanent way, typical cross sections of single and double line B.G. tracks – in cutting , embankment and electrified tracks. Gauges and types of gauges with dimensions. Coning of wheels and tilting of rails. Track stresses in rails, sleepers, ballast and subgrade. Problems on these. Rails functions requirements, types of rail sections, length of rails, defects in rails. Wear on rails, rail joints, welding of rails, creep of rails. 6 Hours
Functions, requirements, types, track fittings and fasteners, calculation of quantity of materials needed for laying a track. Traction and tractive resistances, tractive power, Hauling capacity. Problems on above. .
Necessity of Geometric Design of railway track, gradient and types of gradient. Speed of train, curve, transition curve, super elevation, cant- deficiency, negative cant- speed calculation based on Indian Railways Formulae for High speed tracks only-problems on above.
Necessity and its components, turnout, design of turnout, Types of switches, crossings, track junctions. Stations and yards, marshalling yard, signalling and interlocking, track defects, track maintenance, level crossing, Indian Railway standards (no derivations, only relevant problems). Equipment in stations and yards such as turn-table, water columns, fouling marks, buffer stops etc.
Introduction to airport engineering, Recent Development by AAI. Layout of an airport with component parts and functions of each, Aircraft Characteristics – Airport Classifications - Site selection- Regional Planning.
1) RUNWAY DESIGN- Orientation of runway by using wind rose diagram, the runway configurations- basic length of the runway –corrections to runway length by ICAO and FAA specification- runway cross sections- problems on above. 4 Hours 2) TAXIWAY DESIGN: Factors affecting the layout of the taxiway-geometrics of taxiway- design of Exit taxiways- ICAO Specifications. Problems on above. 3 Hours 3) VISUAL AIDS: Airport marking – lightings- ILS, other navigational aids. 2 Hours
Introduction – types of tunnels, advantages and disadvantages, economics of tunnelling, tunnel surveying, transferring of centreline and gradient from the earth surface to inside the tunnel working face. Design of shape and size of tunnel. Soil classification and metods of tunnelling in soft soil (only Forepoling and Neddle Beam method). Liner Plate Method of tunnelling. Tunnelling in rock- vertical shafts, pilot tunnelling, methods of tunnelling in hard rock. Mucking and methods, drilling and drilling patterns. Tunnel lining and tunnel ventilation.
Introductions, classifications, natural phenomenon affecting the design of harbour viz. wind, wave, tide and currents. Harbor layout with component parts, breakwaters, wharfs and Quays, Jetties and Piers, Dry Dock and Wet Dock, Slipways, Navigational aids. Warehouse and Transit shed.