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Chenab Bridge: Awe-inspiring
facts about world’s highest bridge in J&K
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Chenab Bridge, the world’s highest railway
bridge in Jammu and Kashmir, is almost ready, and will
likely open for railway operations soon. Referring to it
as an ‘infrastructure marvel in making’, Railways Minister
Piyush Goyal also shared a photo of the 476 m-long steel
arches of the upcoming railway bridge over the Chenab
River in Jammu and Kashmir's Reasi district.
Reportedly, Indian Railways has been constructing this
bridge over the Chenab River, under
Udhampur-Srinagar-Baramulla rail link project (USBRL).
Built at a height of 359 m, Chenab Bridge has always been
in the news as it was touted to become the world’s highest
railway bridge.
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As per Deepak Kumar, Chief Public
Relations Officer, Northern Railway, the construction of
arch closure will be completed by March 2021, whereas
the construction of the bridge is expected to be
completed by year end. Reports have it that viaduct and
track laying work will start once the arch construction
is completed.
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Here’s all that you need
to know about the world’s highest bridge. |
At 359 m height above the river
bed, Chenab bridge will be 35 m taller than the Eiffel
tower. This bridge will be 1.315 km, and will have stations
at both the ends.Since the bridge has been built over a deep
gorge, wind will pose a significant threat on the stability
of the bridge. To tackle this issue, modern wind tunnel
tests were performed in Denmark to finalise the design, and
make sure that the is able to withstand wind velocity up to
266 kmph.
- It’s made up of steel arches, whereas
the mountain slopes supporting the foundations of the
main arch have been stabilised.
- Although touted as an engineering marvel, it has
missed several deadlines for completion due to inclement
climate, and challenging terrain in young fold mountains
of Himalayas.
- Built in an earthquake prone Seismic Zone IV, seismic
analysis has also been carried out by various IITs.
Reportedly, the bridge will be able to withstand
earthquake forces up to Seismic Zone V.
- It has also been designed to be ‘blast-proof’ in
consultation with Defence Research and Development
Organisation (DRDO).
- Reportedly, the bridge will have a lifespan of 120
years, and have a design speed of 100 km.
Chenab Bridge, world’s highest is a part of Jammu –
Udhampur – Srinagar-Baramulla Rail line (JUSBRL) project
of Indian Railways having 14 M wide dual carriageway and
1.2 M wide central verge. It was launched in 2003.
Design of bridge was approved in July 2012. It is
constructed in one of the most complicated and isolated
terrains. Biggest challenge was not to stop the flow of
river. It forms a massive steel arch, the first of its
kind in India. The country has no codes or design
guidance for such massive structures. Based on
experiences drawn from similar projects worldwide, the
design practices for the bridge are being followed :
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Length of Bridge - 1315 M
Height of Bridge - 359 M
BS:5400 - Basic
guidelines
Designed wind speed - 260
km/h
Temperature resistance - -20oC
Main support -
Two 130M long, 100M high pylons on either end.
Two ribbed arch with steel trusses made of
concrete filled sealed steel boxes.
Steel - Made of 63mm thick
special blast proof steel.
Concrete pillars designed to withstand explosion.
Equipped with a ring of aerial security.
Construction equipment - Cable Crane (largest in
the world).
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Materials
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Structural Steel
- 25000 MT
Reinforced Steel -
4000 MT
Concrete - 46000 cu.m
Executing Agency -
Konkan Railway Corporation
Design & Construction - JV of Afcons
Infrastructure, Ultra Construction &
Engineering Company of South Korea and VSL,
India.
Main Consultant - Finland based WSP
Group and Germany based Leonhardt Andra &
Partners.
Monitoring & Guidance - AECOM
Expected to be opened in December, 2021.
(Information collected
fromrailway-technology.com)
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Development of Self-Reliant Engineers in
prevailing COVID-19 situation”.
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Gautam Kumar Bysack MIE CEng(I)
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Unemployment crisis in India is increasing rapidly. The
GDP growth in India has started falling since the
beginning of last year. To add to the difficulty the
spread of Corona Virus related disease in 2020 had an
overwhelming impact on Indian economy. As many as 41 lakh
youths have lost jobs in the COVID-19 Pandemic situation.
The entire world is reeling from the COVID-19 Pandemic
situation caused to lockdown and quarantine as an
effective measure to isolate population and prevent
spreading of the disease. The worst hit are the people
related to farming & construction sector. However long
period of lockdown has registered not only job loss among
labourers& workers but also among Engineers,
Management Staff, Accountants and other highly paid,
skilled & qualified salaried employees doing white
collar jobs. The job market is shrinking day by day.
Thus in the economically distressed situation of the
country and the world at large it is expected that many
people has lost and shall loose employment in days to
come.
An effective means to combat joblessness in the society
is to encourage entrepreneurship among qualified persons
so that they may not depend on getting jobs after
graduation and shall venture out to develop their own
business causing employment for themselves and for others.
As such, scope of qualified Engineers & Architects
are also restricted substantially. The only available
alternative for sustenance is to be involved in self-
employment. However in this unpredictable financial
situation it is not amenable to go for large initial
investment to start a business venture. Thus knowledge
based consultancy can be as economically viable business
venture for young Engineers and Architects.
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Strategy for business deployment :
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In this paper the author is to share some strategic views
which he accumulated over some forty years of experience
in the concerned field of Engineering Consultancy which
may be effective and beneficial to the aspiring young
Civil Engineers& Architects to start a new business
venture: -
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- Introducing Industry based business venture in final
year of Graduation Course.
- To be an able entrepreneur stress should be in
practical Engineering field such as Surveying, Drawing,
Design, Geotechnical, Estimating & Costing,
Construction vocational training during the
undergraduate study.
- Understanding of accountancy & bookkeeping and
developing management skills & speaking power.
- Engineering course should be designed from practical
application angle so that the final year student is
exposed to practical aspects of Engineering and running
a business including tendering process and Real Estate
development.
- \Full knowledge of running computer software for the
purpose of drawing and design of structures.
- The entrepreneur Engineer should be aware of various
banking facility given by the Govt. of India & State
Govt. for encouragement of entrepreneurship activity in
the country.
- For effective consultancy work, Engineer and Architect
should update their knowledge and be conversant with the
handbooks, codes of practice & Municipal Bye-laws in
Civil Engineering & Architecture.
- The Engineer and Architect must take membership of
professional societies such as the Institution of
Engineers (India) or Indian Institute of Architects so
as to develop connection with other Fellow &Senior
Engineers and shall always be involved in continuous
professional development to increase his skill and
understanding of Engineering.
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Conclusion
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The Pandemic may affect the economy of the country for
years to come. To counter this unhappy economic situation
and jobless condition entrepreneurship among Civil
Engineer & Architects with proper training &
education should be encouraged. Getting self-employed and
generating employment for the others can ensure the dream
of a ‘Atmanirbhar Bharat’ or self-reliant India of Prime
Minister.
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Our Foundation Day - 5th May
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Because of Pandemic of Covid – 19 we could not hold
Foundation Day in 2020. We hope to hold this year on a
suitable convenient day, provided all our members are
vaccinated with double dose of medicine and permitted by
Govt.
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We await formation of a new Govt. in our State of West
Bengal with promises of all round development – specially
in the field of Architecture and Engineering, creating
wealth and jobs.
Kolkata Redevelopment Scheme shall be in the line of
Singapore adopting full package on cluster to cluster
basis – by replacement, sustenance & rehabilitation as
understood from lecture of Home Minister of India during
Election campaign.
We expect to face floodgate of all round development
between 2021 – 2026. AMEC members be part of it.
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