Analyses and design of the highly jointed slopes on the abutments of the world’s highest railway bridge across the chenab river in Jammu and Kashmir state, India

Sitharam, TG and Mantrala, S and Verma, AK (2019) Analyses and design of the highly jointed slopes on the abutments of the world’s highest railway bridge across the chenab river in Jammu and Kashmir state, India. [Book Chapter]

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Abstract

Indian Railways have embarked on the construction of world’s highest railway bridge as a part of Udhampur–Srinagar–Baramulla Rail Link Project, a major infrastructure project in India. The bridge is being constructed across the river Chenab. The bridge consists of a main span of 467Â m arch bridge on the steep slopes on the banks of the river Chenab. The bridge is about 359Â m above the high flood level of the Chenab River. The bridge is located in highly seismic area characterized with maximum credible earthquake with a peak horizontal acceleration of 0.36Â g. Considering the iconic nature of the bridge and highly jointed rock mass, a variety of tests were conducted to assess bearing capacity of the foundations and stability of the slopes. Continuum analyses using Slide and FLAC softwares were carried out. The slopes were also checked for wedge failure and toppling failure considering the joint characteristics. The slope stabilization measures against wedge failure consist of using passive rock bolts and active prestressed rock anchors. The methodology for the design of these rock bolts and prestressed rock anchors for wedge failures is described briefly. The slopes have been successfully stabilized using the methodology discussed in this paper.

Item Type:	Book Chapter
Publication:	Lecture Notes in Civil Engineering
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer.
Keywords:	Anchor bolts; Anchors; Arch bridges; Bolts; Design; Earthquakes; Foundations; Railroad bridges; Railroads; Rails; Rivers; Rock bolting; Rock mechanics; Rocks; Slope stability, Continuum analysis; Horizontal acceleration; Infrastructure project; Jammu and Kashmir; Maximum credible earthquakes; Railway bridges; Slope stabilization; Stability of the slopes, Slope protection
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	05 Dec 2022 04:44
Last Modified:	05 Dec 2022 04:44
URI:	https://eprints.iisc.ac.in/id/eprint/77941

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