Tunnelling & Underground Projects Sharing Risks & Responsibilities

Tunnelling & Underground Projects Sharing Risks & Responsibilities

Rakesh Kumar Khali, Project Director-Hydro, Hindustan Construction Company Limited, Mumbai, describes the type of risks involved in underground construction projects, gives important guidelines to the tendering authorities and contractors on the preparation and acceptance of contracts, and the possible consequences of major risk factors viz. financial, environmental, and managerial, that all the stakeholders must consider.

Underground space utilization is a rapidly growing trend in India as a number of underground projects are under execution and an equal number of them are in the pipeline awaiting their turn for tendering. These projects demand a particular type of construction and thus need extensive planning right from the tender stage until the final commissioning. Most of the risk factors are inherent in the construction and contract process and are indispensably relevant to tunnelling. Several vital risk factors, which are liable to influence the safety, quality, work schedule and ultimately the overall success of the project, have to be considered and analyzed.

This is a premium article available exclusively for our subscribers.
If you are already a subscriber, please Login
If not, subscribe now and get access to well researched articles & reports on infrastructure construction, equipment & machinery, innovations & technology, project reports, case studies, and more. All this by simply paying just ₹200/- for a month of complete portal access, or a discounted rate of ₹1000/- for a full year of access.
NBM&CW April 2022

No comments yet, Be the first one to comment on this.

×

Terms & Condition

By checking this, you agree with the following:
  1. To accept full responsibility for the comment that you submit.
  2. To use this function only for lawful purposes.
  3. Not to post defamatory, abusive, offensive, racist, sexist, threatening, vulgar, obscene, hateful or otherwise inappropriate comments, or to post comments which will constitute a criminal offense or give rise to civil liability.
  4. Not to post or make available any material which is protected by copyright, trade mark or other proprietary right without the express permission of the owner of the copyright, trade mark or any other proprietary right.
  5. To evaluate for yourself the accuracy of any opinion, advice or other content.
Design & Planning of Excavation Sequence & Blasting Techniques for Caverns

Design & Planning of Excavation Sequence & Blasting Techniques for Caverns

Dr. Rakesh Kumar Khali, Vice President- Operations (Tunnel & UG Works), and Naveen Bahuguna, Design Lead- Tunnel & Underground projects, G R Infraprojects Limited, present a selection of excavation sequences, control blasting

Read more ...

Squeezing Ground Conditions in Rishikesh-Karnaprayag Railway Tunnel Project

Squeezing Ground Conditions in Rishikesh-Karnaprayag Railway Tunnel Project

Mohammad Forooghi, Vishal Bansal, Majid Tajik, Soner Batuman & Pranshu Aggarwal at Turkish Engineering Consulting & Contracting -TUMAS India, and Sumit Jain, Rail Vikas Nigam Limited, present evaluations, considerations, and exploration

Read more ...

Tunnel Gantries: Fostering Safe, Efficient & Rapid Tunnel Construction

Tunnel Gantries: Fostering Safe, Efficient & Rapid Tunnel Construction

Naragana Jaya Chandra Gowd, Abhijeet Vijay Gawai, and Vivek Ganesh Abhyankar at SGAWings Consultants, Mumbai, share insights into Tunnel Gantries, their planning, design, construction, operation and maintenance strategies.

Read more ...

Chinese TBM Set to be Shipped to Romania for Cluj-Napoca Metro Project

Chinese TBM Set to be Shipped to Romania for Cluj-Napoca Metro Project

On September 12, a 6.35m diameter TBM passed FAT at CRCHI’s second industrial park in Changsha and is set to be shipped to Cluj-Napoca, Romania, where it will be used in the construction of the local metro system. This marks

Read more ...

CRCHI's Pioneer TBM Achieves Breakthrough in Guangzhou Haizhu Bay Tunnel

CRCHI's Pioneer TBM Achieves Breakthrough in Guangzhou Haizhu Bay Tunnel

The first super large diameter municipal TBM tunnel in the Pearl River Basin - Guangzhou Haizhu Bay Tunnel project successfully achieved double-line breakthrough on July 15th. The super large diameter slurry TBM, named "Pioneer" and developed

Read more ...

Changsha Xiangya Road River-Crossing Tunnel in China Opened to Traffic

Changsha Xiangya Road River-Crossing Tunnel in China Opened to Traffic

On July 5th, 2024, Changsha Xiangya Road river-crossing tunnel was opened to traffic. The tunnel is the largest diameter shield machine tunnel in the Hunan Province of China. The opening of the tunnel will effectively alleviate traffic

Read more ...

CRCHI Launches TBMs for World's Longest Subsea High-Speed Railway Tunnel

CRCHI Launches TBMs for World's Longest Subsea High-Speed Railway Tunnel

On May 16th, 2024, two super-large diameter slurry TBMs, developed by China Railway Construction Heavy Industry Corporation Limited (CRCHI), were launched from opposite directions in Ningbo and Zhoushan for the Jintang subsea

Read more ...

Building a Sustainable Future: Creating Zero-Carbon Tunnels

Building a Sustainable Future: Creating Zero-Carbon Tunnels

Despite a daunting timeline set by the Paris Accord, Zero-Carbon Tunnels are within reach if the right solutions are implemented. Ross Dimmock, Vice President – Tunnelling, Normet, suggests the steps that can be taken towards creating

Read more ...

CRCHI EPB Shield Machine Exported to Chile Launched

CRCHI EPB Shield Machine Exported to Chile Launched

The EPB shield machine manufactured by China Railway Construction Heavy Industry Corporation Limited (CRCHI) was officially launched in Chile on May 6th, 2024. The EPB shield machine named "Matukana" symbolizes brightness and hope. Its diameter

Read more ...

What's Driving Growth of India's Tunnelling Industry

What's Driving Growth of India's Tunnelling Industry

The growth of the tunnel construction in the country has been driven by a robust pipeline of projects and investments in setting up hydropower projects, developing urban mass rapid transit systems, improving road and rail connectivity

Read more ...

Silkyara Tunnel Structural Collapse: Unraveling Causes & Ensuring Safety

Silkyara Tunnel Structural Collapse: Unraveling Causes & Ensuring Safety

The Silkyara Tunnel incident has sparked questions about its safety and construction methods. It has raised concerns about the geological challenges in the region, the frequency of collapses during the tunnel's construction, and the absence

Read more ...

Enhancing Sustainability of Underground Works

Enhancing Sustainability of Underground Works

The design of a structure, its execution quality, and the choice of systems and materials affecting maintainability of the structure, play a key role in ingraining sustainability into the project design, along with a focus on reducing

Read more ...

Structural & Sustainability Requirement for Precast Segment

Structural & Sustainability Requirement for Precast Segment

The use of steel fibre reinforced concrete has the potential to meet low carbon lining by lowering concrete consumption and steel reinforcement saving while producing precast segments. If ductility and durability have been the key

Read more ...

Construction of Budhwarpeth Underground Metro Station, Pune

Construction of Budhwarpeth Underground Metro Station, Pune

This paper covers the design and innovations in the construction of the Budhwarpeth underground metro station, and the challenges encountered, including adaptions to mitigate space constraints in the dense neighborhood and construction

Read more ...

CRCHI Underground Pipeline Network Equipment on Bangkok Power Plant Site

CRCHI Underground Pipeline Network Equipment on Bangkok Power Plant Site

On February 2024, a significant breakthrough was achieved at the construction site of the Bang Pakong-south Bangkok power plant gas transmission pipeline project in Thailand. The first section of the initial phase of pipeline

Read more ...

Construction of Head Race Tunnel of Vishnugad-Pipalkoti HE Project

Construction of Head Race Tunnel of Vishnugad-Pipalkoti HE Project

Dr. Rakesh Kumar Khali. Vice President- Operations (Tunnel & UG Works), G R Infraprojects Limited, and Prof Dr Sandeep Potnis, Professor and Head - Tunnel Engineering Program, MITWPU, highlight the issues and challenges faced during

Read more ...

Micro-Tunnelling Machines for Pipe Roof Support Construction

Micro-Tunnelling Machines for Pipe Roof Support Construction

Diwakar Velu and Kim Yeow Yap, Land Transport Authority, Singapore, present a case study on the use of medium diameter (1.2m) pipe roofing for the construction of underground subway entrances (6.4m H x 8.4m W) with span lengths ranging

Read more ...

Maintenance of Tunnels: An Indispensable Part of Sustainability

Maintenance of Tunnels: An Indispensable Part of Sustainability

Tunnels are an indispensable part of sustainable modern transport infrastructure. Compared to other civil structures, which often show a lifetime of 50 years only, tunnels are multi-generation structures. The aim, therefore

Read more ...

Sustainable Solution for Sprayed Concrete in Underground Tunnel Projects

Sustainable Solution for Sprayed Concrete in Underground Tunnel Projects

The modern sprayed concrete systems combine high levels of Portland Cement replacement, polymer fibres, and innovative waterproofing technologies, offering possibilities to achieve over 50% reduction in carbon in tunnel linings.

Read more ...

To get latest updates on whatsapp, Save +91 93545 87773 and send us a 'Saved' message
Click Here to Subscribe to Our eNewsletter.