2- They are liable to decay, attack of white ants, wear, spike killing, cracking, splitting, rail cutting etc. These sleepers were widely used as the best type of sleepers as they fulfilled all the requirements of an ideal sleeper. C S T- 9 Sleepers: cast iron component has a shape combining the pot, bowl and plate.
They remove the drawbacks of longitudinal sleepers i.e. They were first of all used in France round about in 1914 but are common since 1950. According to different applications, wood sleepers can be divided into three types: ordinary wooden sleeper, turnout sleeper and bridge sleeper. I. 1- The life span of wooden sleepers is minimum (12 to 15 years) compared to other types of sleepers. Depending upon the position in a railway track, railway sleepers may be classified as: Longitudinal Sleepers; Transverse Sleepers; 1. It consists of slabs of stones or pieces of woods placed parallel to and underneath the rails. PCS-12 is the latest type of prestressed concrete (PRC) sleeper for use on BG routes with 52-kg rails and elastic rail clips. 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.
Sleepers - Types Cast Iron Sleepers Type of Cast Iron Sleepers: C. 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. For this reason, wood sleepers are widely used throughout the world. To maintain correct gauge of the track, cross pieces are provided at regular intervals. They may be a twin block sleepers joined by an angle iron. It consists of slabs of stones or pieces of woods placed parallel to and underneath the rails. The important dimensions of both of these types of sleepers are shown in Fig. The length and purpose of each is not the same. It transfers the load from sleepers to subgrade and distributes the load uniformly on subgrade. 7.13 and listed as follows. 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. It provides levelled bed or support for the railway sleepers. 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. The wood used may be like teak, sal etc or it may be coniferous like pine.The salient features of timber/wooden sleepers with advantages and disadvantages.They are in the form of steel trough inverted on which rails are fixed directly by keys or nuts and bolts and used along sufficient length of tracks.They consist of two pots or plates with rib and connected by wrought iron tie bar of section of about 2″ ½” each pot or plate is placed below each rail. Especially the treated railway sleeper, its lifespan can prolong to 15 years. At present this type of sleepers are discarded mainly because of the following reasons.1- Running of the train is not smooth when this type of sleepers is used.Transverse sleepers introduced in 1835 and since then they are universally used.
Types Of Sleepers used in Railway July 20, 2020 July 31, 2020 mohdsuhel 32 Views 0 Comments sleepers There are different types of sleepers used in railways, according to their suitability, availability, economy, and design. (Cast iron Pot or Bowl Sleepers C S T- 9 Sleepers (Cast iron sleeper) 10.
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