East West Metro Tunnel, Calcutta - Revision history

Editor at 14:53, 6 January 2021

2021-01-06T14:53:09Z

← Older revision		Revision as of 14:53, 6 January 2021
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	* Articles by ICE on Designing Buildings Wiki.		* Articles by ICE on Designing Buildings Wiki.
	* Excavating plant.		* Excavating plant.
		+	* From Calcutta to Kolkata - legacy and modernisation.
	* India looks at using plastic instead of sand.		* India looks at using plastic instead of sand.
	* India needs to build more infrastructure fast. Here's how.		* India needs to build more infrastructure fast. Here's how.

Editor at 20:33, 15 December 2020

2020-12-15T20:33:59Z

← Older revision		Revision as of 20:33, 15 December 2020
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	* Underpinning.		* Underpinning.

−	[[Category:~~International~~]] [[Category:~~Projects_and_case_studies]] [[Category:DCN_Project_Knowledge~~]] [[Category:News]] [[Category:~~DCN_News~~]]	+	[[Category:DCN_Project_Knowledge]] [[Category:International]] [[Category:News]] [[Category:Projects_and_case_studies]]

Designing Buildings at 15:10, 11 March 2019

2019-03-11T15:10:22Z

← Older revision		Revision as of 15:10, 11 March 2019
Line 46:		Line 46:
	* Articles by ICE on Designing Buildings Wiki.		* Articles by ICE on Designing Buildings Wiki.
	* Excavating plant.		* Excavating plant.
		+	* India looks at using plastic instead of sand.
		+	* India needs to build more infrastructure fast. Here's how.
		+	* Indian construction industry.
		+	* Indian infrastructure.
	* Follo Line, Norway.		* Follo Line, Norway.
	* Stad Ship Tunnel.		* Stad Ship Tunnel.
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	* Underpinning.		* Underpinning.

−	[[Category:International]] [[Category:Projects_and_case_studies]] [[Category:News]]	+	[[Category:International]] [[Category:Projects_and_case_studies]] [[Category:DCN_Project_Knowledge]] [[Category:News]] [[Category:DCN_News]]

Designing Buildings at 15:40, 10 December 2018

2018-12-10T15:40:07Z

← Older revision		Revision as of 15:40, 10 December 2018
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	--[[User:The_Institution_of_Civil_Engineers\|The Institution of Civil Engineers]]		--[[User:The_Institution_of_Civil_Engineers\|The Institution of Civil Engineers]]

−	= ~~Find out more~~ =	+	= Related articles on Designing Buildings Wiki =

−	~~=== Related articles on Designing Buildings Wiki ===~~	+	* Articles by ICE on Designing Buildings Wiki.
−		+
−	* ~~[[User:The_Institution_of_Civil_Engineers\|~~Articles by ICE on Designing Buildings Wiki.]]	+
	* Excavating plant.		* Excavating plant.
	* Follo Line, Norway.		* Follo Line, Norway.

Editor at 09:20, 20 June 2017

2017-06-20T09:20:09Z

← Older revision		Revision as of 09:20, 20 June 2017
Line 48:		Line 48:
	* [[User:The_Institution_of_Civil_Engineers\|Articles by ICE on Designing Buildings Wiki.]]		* [[User:The_Institution_of_Civil_Engineers\|Articles by ICE on Designing Buildings Wiki.]]
	* Excavating plant.		* Excavating plant.
		+	* Follo Line, Norway.
		+	* Stad Ship Tunnel.
	* Trenchless technology.		* Trenchless technology.
	* Tunnel Engineering Exhibition 2017.		* Tunnel Engineering Exhibition 2017.

Editor at 09:54, 16 June 2017

2017-06-16T09:54:22Z

← Older revision		Revision as of 09:54, 16 June 2017
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	In June 2017, 30 members from the ICE Kolkata Chapter visited the tunnels under construction.		In June 2017, 30 members from the ICE Kolkata Chapter visited the tunnels under construction.

−	[[File:Kolkata-metro.jpg]]	+	[[File:Kolkata-metro.jpg\|link=File:Kolkata-metro.jpg]]

	The East-West Metro Corridor Project connects the East of Kolkata (Salt Lake Sector-V, Kolkata's IT Hub) with the west end, i.e, Howrah (Kolkata's twin city).		The East-West Metro Corridor Project connects the East of Kolkata (Salt Lake Sector-V, Kolkata's IT Hub) with the west end, i.e, Howrah (Kolkata's twin city).
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	-----		-----
−	This article was originally published [https://www.ice.org.uk/news-and-insight/latest-ice-news/first-hand-look-at-kolkata-east-west-tunnel here] by ICE on 15 June 2017. It was written by Ayanangshu ~~[mailto:deborah.oyelaja@ice.org.uk [1]]~~Dey.	+	This article was originally published [https://www.ice.org.uk/news-and-insight/latest-ice-news/first-hand-look-at-kolkata-east-west-tunnel here] by ICE on 15 June 2017. It was written by Ayanangshu Dey.

	--[[User:The_Institution_of_Civil_Engineers\|The Institution of Civil Engineers]]		--[[User:The_Institution_of_Civil_Engineers\|The Institution of Civil Engineers]]

Editor at 09:54, 16 June 2017

2017-06-16T09:54:06Z

← Older revision		Revision as of 09:54, 16 June 2017
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−	[[File:~~East West Metro Tunnel1~~.jpg]]	+	[[File:East_West_Metro_Tunnel1.jpg\|link=File:East_West_Metro_Tunnel1.jpg]]

	At least two unique features describe the much awaited underground railway connection between Calcutta (Kolkata) and Howrah, two large cities situated on either side of River Hooghly.		At least two unique features describe the much awaited underground railway connection between Calcutta (Kolkata) and Howrah, two large cities situated on either side of River Hooghly.
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	In June 2017, 30 members from the ICE Kolkata Chapter visited the tunnels under construction.		In June 2017, 30 members from the ICE Kolkata Chapter visited the tunnels under construction.
		+
		+	[[File:Kolkata-metro.jpg]]

	The East-West Metro Corridor Project connects the East of Kolkata (Salt Lake Sector-V, Kolkata's IT Hub) with the west end, i.e, Howrah (Kolkata's twin city).		The East-West Metro Corridor Project connects the East of Kolkata (Salt Lake Sector-V, Kolkata's IT Hub) with the west end, i.e, Howrah (Kolkata's twin city).
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	-----		-----
−	This article was originally published [https://www.ice.org.uk/news-and-insight/latest-ice-news/first-hand-look-at-kolkata-east-west-tunnel here] by ICE on 15 June 2017. It was written by Ayanangshu [mailto:deborah.oyelaja@ice.org.uk ]Dey.	+	This article was originally published [https://www.ice.org.uk/news-and-insight/latest-ice-news/first-hand-look-at-kolkata-east-west-tunnel here] by ICE on 15 June 2017. It was written by Ayanangshu [mailto:deborah.oyelaja@ice.org.uk [1]]Dey.

	--[[User:The_Institution_of_Civil_Engineers\|The Institution of Civil Engineers]]		--[[User:The_Institution_of_Civil_Engineers\|The Institution of Civil Engineers]]

Editor: Created page with "File:East West Metro Tunnel1.jpg At least two unique features describe the much awaited underground railway connection between Calcutta (Kolkata) and Howrah, two large citie..."

2017-06-16T09:53:14Z

Created page with "File:East West Metro Tunnel1.jpg At least two unique features describe the much awaited underground railway connection between Calcutta (Kolkata) and Howrah, two large citie..."

New page

[[File:East West Metro Tunnel1.jpg]]

At least two unique features describe the much awaited underground railway connection between Calcutta (Kolkata) and Howrah, two large cities situated on either side of River Hooghly.

The idea was put forward by a Bengal-born British engineer Sir Harley Hugh Dalrymple-Hay in 1921, and its twin tunnels under River Hooghly are the first of its kind in India.

It has taken almost a century to realise Sir Dalrymple-Hay concept, and it is expected that the East West Metro Railway will have a significant and far reaching impact on Calcutta's transportation system in years to come and the way people commute between these two congested city centres.

In June 2017, 30 members from the ICE Kolkata Chapter visited the tunnels under construction.

The East-West Metro Corridor Project connects the East of Kolkata (Salt Lake Sector-V, Kolkata's IT Hub) with the west end, i.e, Howrah (Kolkata's twin city).

The whole project is being executed by Kolkata Metro Railway Corporation Limited (KMRCL) with partial financial support from JICA.

The entire stretch is divided into three parts:

* UG-1 (underground portion from Howrah Maidan to New Mahakaran).
* UG-2 (underground portion from Esplanade to Subhash Sarobar).
* Elevated portion from Subhash Sarobar to Salt Lake Sector-V.

This UG-1 contract package is being executed by TransTonnelstroy-AFCONS Joint Venture (TTAJV). A consortium (MYCEL) led by AECOM is the General Consultants (GC) to KMRCL.

The works include 2-tier Howrah Maidan Station, one cross-over near Howrah Maidan Station, a 4-tier Howrah Station adjacent to present Howrah Railway Station (Kolkata's Railway Hub to rest of India) to provide interface between underground and surface railway transportation for commuter traffic coming to the cities from suburbs.

Under the project, there are twin 5.5 m tunnels that are 3 km long and a vent shaft/emergency exit on Kolkata's side by Hooghly River.

The tunnels under the river pass through mostly clay silts at a depth of 11-15 m below the river bed and under submergence of 13 m average tide water in the river.

There are EPBM type two Tunnel Boring Machines (TBM) at work from Herrenknecht, Germany (named 'Rachana' meaning 'Composition', and 'Prerana' meaning 'Encouragement').

The tunnel is being constructed with pre-cast segments (5 regular segments and 1 key) of M50 grade concrete along with all necessary arrangement to ensure waterproofing, resistance to earthquake and flotation for a design life of 120 years.

During tunnelling (other than utilities and land issues), the biggest challenge is to ensure the safety of buildings and structures above ground (some of them are almost a century old and remnants of the colonial era) with suitable preventive measures.

Tunnels have successfully crossed Howrah DRM building with nominal damage and it is considered to be one of the key achievements in this project.

-----
This article was originally published [https://www.ice.org.uk/news-and-insight/latest-ice-news/first-hand-look-at-kolkata-east-west-tunnel here] by ICE on 15 June 2017. It was written by Ayanangshu [mailto:deborah.oyelaja@ice.org.uk ]Dey.

--[[User:The_Institution_of_Civil_Engineers|The Institution of Civil Engineers]]

= Find out more =

=== Related articles on Designing Buildings Wiki ===

* [[User:The_Institution_of_Civil_Engineers|Articles by ICE on Designing Buildings Wiki.]]
* Excavating plant.
* Trenchless technology.
* Tunnel Engineering Exhibition 2017.
* Tunnelling.
* Tunnels of the world.
* Underpinning.

[[Category:International]] [[Category:Projects_and_case_studies]] [[Category:News]]