What is creep in railway?

Creep in rail is defined as the longitudinal movement of the rails in the track in the direction of motion of locomotives. Creep is common to all railways and its value varies from almost nothing to about 6 inches or 16cm.

What are the effects of creep in rails?

What is creep How is it prevented?

What is the theory of creep?

How creep is measured in rails?

What are the different types of rail joints?

What are the different types of sleepers?

Types of sleepers: lion, wolf, bear and dolphin. The American sleep scientist, Michael Breus, revised the owls and larks model and identified a total of four types of sleepers.

What are the types of rail joints?

What are train kinks?

Kinks are formed when the end of the adjoining rails move slightly out of their aligned position.

What is cant excess?

(4) Cant excess – Cant excess occurs when a train travels around a curve at a speed lower than the equilibrium speed. It is the difference between the actual cant and the theoretical cant required for such a lower speed.

How do you calculate sleeper density?

Sleeper Density:

It is expressed as (n + x) where n is the length of one rail in meter and x is constant whose value varies from 3 to 6 (length of one rail is 13 m for B.G. Track and is 12 m for meter gauge (M.G.) track. In India the sleeper density is taken as (n + 3) to (n + 6).

What is insulated rail joint?

Insulated rail joints serve as the central nervous system of railroad lines, preventing electrical current from flowing between the ends of two adjoining rails.

How long do concrete sleepers last?

These sleepers are usually assumed to last perhaps 50 years, but changing operational and environmental factors can mean the actual life of the sleepers may be much shorter or longer.

How long do concrete railway sleepers last?

It has the durability of concrete (composites have a service lifespan of 50 years or more), without concrete’s weight and ponderous installation process.

What is the use of fish plate?

A fishplate, splice bar or joint bar is a metal connecting plate used to bolt the ends of two rails into a continuous track. The name is derived from fish, a wooden reinforcement of a “built-up” ship’s mast that helped round out its desired profile.

What is bearing plate in railway?

BEARING PLATES : They are the plates placed in between the flat footed rails and timber sleepers on a track. They serve as chairs for flat footed rails. They are made of cast iron, wrought iron or steel.

What is a sun kink?

sun kink (plural sun kinks) (US, rail transport) A buckle in railroad track caused by extremely hot weather, which could cause a train to derail.

What is creep in railway?

Creep in rail is defined as the longitudinal movement of the rails in the track in the direction of motion of locomotives. Creep is common to all railways and its value varies from almost nothing to about 6 inches or 16cm.

What is creep of rail?

Creep in rail is defined as the longitudinal movement of the rails in the track in the direction of motion of locomotives. Creep is common to all railways and its value varies from almost nothing to about 6 inches or 16cm.

What type of curve is used for railway?

The various curves used on railways can be broadly classified into the following two types: a) Horizontal Curves. b) Vertical Curves.

What are the requirements of an ideal rail joint?

Rail joint should hold the two ends of the rails as nearly as possible. The two ends should be at the same level and in the same straight line. Rail joint should have same strength and stiffness as rails which it joins. Joint should provide space for the expansion and contraction of rails.