RAILWAY ENGINEERING
3.1 INTRODUCTION
INTRODUCTION TO RAILWAYS – CLASSIFICATIONS OF INDIAN RAILWAYS
– RAIL GAUGES – TYPES – UNIFORMITY IN GAUGES – LOADING GAUGE –
CONSTRUCTION GAUGE.
3.2 RAILS
GENERAL – FUNCTIONS OF RAILS – REQUIREMENTS OF AN IDEAL RAIL –
TYPES OF RAIL SECTIONS – LENGTH OF RAILS – WELDING OF RAILS –
WEAR OF RAILS – CONING OF WHEELS – HOGGED RAILS – BENDING OF
RAILS – CREEP OF RAILS – CAUSES AND PREVENTION OF CREEP.
3.3 SLEEPERS AND BALLAST
FUNCTIONS OF SLEEPERS – TYPES OF SLEEPERS – REQUIREMENTS
OF SLEEPERS – MATERIALS FOR SLEEPERS – SLEEPER DENSITY –
BALLAST- FUNCTIONS OF BALLAST – REQUIREMENTS OF BALLAST –
MATERIAL USED AS BALLAST.
3.4 RAIL FASTENINGS AND PLATE LAYING
RAIL JOINTS – TYPES – RAIL FASTENINGS – FISH PLATES – FISH BOLTS
SPIKES – CHAIRS AND KEYS – BEARING PLATES – BLOCKS – ELASTIC
FASTENINGS – ANCHORS AND ANTI-CREEPERS – PLATE LAYINGMETHODS OF PLATE LAYING – PQRS METHOD OF RELAYING.
3.5 MAINTENANCE OF TRACK
NECESSITY – MAINTENANCE OF TRACK, BRIDGES AND ROLLING STOCK