Widely used in India. Depending upon the position in a railway track, railway sleepers may be classified as:These are the early form of sleepers which are not commonly used nowadays.
They may be a twin block sleepers joined by an angle iron.
It prevents the longitudinal and lateral movement of sleepers. For this reason, wood sleepers are widely used throughout the world. The important dimensions of both of these types of sleepers are shown in Fig. Used untreated railway sleepers are the most common. Steel sleepers are extensively used with excellent results.The sleepers made of cast iron are known as cast iron sleepers.
1- The life span of wooden sleepers is minimum (12 to 15 years) compared to other types of sleepers.
But these are now backdated and not used widely.3- They require few fastenings which are also simple to design.6- They can be used with every section of rails and for any gauge of track.1- The life span of wooden sleepers is minimum (12 to 15 years) compared to other types of sleepers.2- They are liable to decay, attack of white ants, wear, spike killing, cracking, splitting, rail cutting etc.3- The lateral and longitudinal rigidity of the track is less as the connections between the rails and the sleepers are not so strong.The sleepers usually made of cast iron or steel are known as metal sleepers. It consists of slabs of stones or pieces of woods placed parallel to and underneath the rails. Using railway sleepers in garden design is a great way of adding something a little different to your outside space this summer, from the natural worn look of reclaimed timbers to the fresh clean edges of newly cut sleepers, the humble railway sleeper is a versatile addition to any garden space. It holds the sleepers in a firm position while the trains pass by. the transverse sleepers are economical, silent in operation and running of the train over these sleepers is smooth. (Cast iron Pot or Bowl Sleepers C S T- 9 Sleepers (Cast iron sleeper) 10. Due to the growing shortage of timber to be used for wooden sleepers, their high maintenance, cast and short life, metal sleepers are now being widely used.The sleepers made of steel are known as steel sleepers. The pot is oval in shape with larger diameter 2′-0″ and smaller diameter 1′-8″ is preferred. PCS-12 is the latest type of prestressed concrete (PRC) sleeper for use on BG routes with 52-kg rails and elastic rail clips. It … Railway sleepers used in Europe are almost exclusively of wood and are manufactured either in sawmills or in the forest. The functions of sleepers in railway works are as follows: (i) The primary function of a sleeper is to grip the rail to gauge and to distribute the rail loads to ballast with acceptable induced pressure. Especially the treated railway sleeper, its lifespan can prolong to 15 years. These sleepers were widely used as the best type of sleepers as they fulfilled all the requirements of an ideal sleeper. Depending upon the material, the transverse sleepers may be classified asThe sleepers made of timber are known as wooden sleepers. in general, railway sleeper and rail fastening system fix rail together. 7.13 and listed as follows. According to different applications, wood sleepers can be divided into three types: ordinary wooden sleeper, turnout sleeper and bridge sleeper.
These sleepers are extensively used in the world.3- The gauge can be easily adjusted and maintained.4- The lateral and longitudinal stability of the track is more.4- These sleepers are not suitable for bridges, level crossing etc.The sleepers made of reinforced or prestressed cement concrete are known as concrete sleepers.The concrete sleepers constructed of reinforced cement concrete are called RCC sleepers.The concrete sleepers constructed of prestressed cement concrete are known as prestressed concrete sleepers.4- They provide strong connections between rail and sleeper.5- The lateral and longitudinal stability of the track is more.9- They can withstand the stresses induced by fast-moving and heavy traffic.2-Liable to break under rough handling or due to improper design. Depending upon the material, the transverse sleepers may be classified as:The timber sleepers nearly fulfilled all the requirements of ideal sleepers and hence they are universally used. Types of railway sleepers - The term railway sleepers refers to the rectangular or approximately rectangular cross section supports laid transversely on the railway roadbed to support the rails. Plate sleepers consist of rectangular plates of size about 2′ – 10′ x 1′ – 0″.The relative advantages and disadvantages are given below.R.C.C and pre-stressed concrete sleepers are now replacing all other types of sleepers except to some special circumstances such as crossing bridges etc here timber sleepers are used.