IES / ESE Notification 2021

IES / ESE (ENGINEERING SERVICES EXAM) 2021 Notification is out now. IES / ESE / Engineering Services (Preliminary) Examination, 2021 Date of Notification of ENGINEERING SERVICES 07/04/2021 Date of Commencement…

Design of Sand Drains

The typical design parameters for the sand drains along with its permissible values are given as : (i) Diameter of sand drains (ɸd) = 450 mm to 600 mm. (ii)…

Sand Drains

Vertical drains are constructed in order to improve the quality of soil specially cohesive soil. Vertical drains are mainly of 3 types: Sand Drains, Band Drains, Sand wicks. Sand Drain…

Track Drainage

GENERAL Track drainage involves the interception and removal of water from; upon or under the track and is accomplished not only by surface interception and drainage arrangements; but also where…

Surveying in Railways

SURVEYS FOR TRACK ALIGNMENT In a railway project from beginning till its construction, four different surveys in stages are required to be conducted. The following survey should be carefully conducted…