What is diamond crossing, Civil Engineering

Q. What is Diamond Crossing?

Diamond Crossing is provided when two tracks cross each other either of the same gauge or of different gauges. It consists of two acute crossing ( A and C ) and two abtuse crossing (B & D) a typical diamond crossing consisting of two tracks of the same gauge crossing each other is shown in the fig.

2209_What is Diamond Crossing.png

In the layout ABCD is a rhombus having all the four sides equal the length of various constituents may be calculated as follows -

EB = DF = GN , AB = BC = G cosec α , Diagonal AC = G cosec α / 2 ,

Diagonal BD = G sec α / 2 , Where α = Angle of Crossing. G = Gauge ,N = Number of Crossing.

It would be seen from the layout that the length of the gap at points B & D increases as the angle of crossing decreases. Longer gaps increase the chances of wheels taking two roads on the Indian Railways flattest diamond permitted for BG and MG is 1 in 8 ½.

Along with diamond crossing single or double slips may also be provided to allow the vehicles to pass from one track to another track.

Posted Date: 6/25/2013 8:58:17 AM | Location : United States

Related Discussions:- What is diamond crossing, Assignment Help, Ask Question on What is diamond crossing, Get Answer, Expert's Help, What is diamond crossing Discussions

Write discussion on What is diamond crossing
Your posts are moderated
Related Questions
Q. Explain about Castellated beams? Castellated beams refer to the type of beams which involve expanding a standard rolled steel section in such a way that a predetermined patt

Define the Marine Growth - Underwater inspection of bridges? Bridges on many inland waterways are relatively clean and free of marine growth. However, there is likelihood of ma

Equivalent static load method After the earthquake in Messina-Reggio Italy 1908, a team composed of engineers were sent on duty to study deteriorated buildings and investigate

Maintenance of Bituminous Roads: The common defects noticed in a bituminous road are : potholes cracks rutting corrugations shoving stripping and l

Question What is the major purpose of carrying out water absorption test for precast concrete pipes? Answer Cement will mix with additional water than is compulsory t

In reclamation involving large volumes of fill and tight programme, shall engineers use marine fill or mud extracted from land borrow area as filling material?  There are two

Analyse the state of stress: For the cross-section shown in above figure, let us take b = 100 mm, d = 300 mm and M = 9 × 10 7 N mm and Q = 18 × 10 4 N and analyse the state

Seismic loading principles Ground motion Effects of ground motion are specified as one of the acceleration delineation spectrum or time history of acceleration variation m