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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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.

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Enabling Works (Temporary Structures) in Metro Rail Projects

Enabling Works (Temporary Structures) in Metro Rail Projects

Metro construction works are spread all over India. Apart from the design of permanent works there are several enabling/temporary structures required during construction of permanent works. Often these temporary works are not taught in school

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Two heavyweight lectures at the opening ceremony, catch the highlights!

Two heavyweight lectures at the opening ceremony, catch the highlights!

After the opening ceremony of this conference, we will have the honor to listen to the wonderful lectures delivered by Dr. Priscilla Nelson, a distinguished scholar from the United States, and Academician Zhu Hehua, a member of

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Sandvik displays tunnelling jumbos, and surface drill rigs

Sandvik displays tunnelling jumbos, and surface drill rigs

Sandvik Mining and Rock Technology India, known for its high-tech products for mining, construction, and infrastructure industries, showcased its comprehensive solutions. Noteworthy among them were the locally manufactured

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CRCHI Channel Express TBM's Subsea Tunnel Breakthrough in Singapore

CRCHI Channel Express TBM's Subsea Tunnel Breakthrough in Singapore

November 22, 2023, saw the TWRP Pipeline-C1 Tunnel breakthrough in Singapore. The CRCHI (China Railway Construction Heavy Industry Corporation Limited) self-innovated "Channel Express" slurry TBM assisted the breakthrough

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Innovations & Contracting in Tunnelling Adaptive Measures & Climate Change

Innovations & Contracting in Tunnelling Adaptive Measures & Climate Change

In a world where infrastructure is the linchpin of sustainable development, the fusion of innovation and contracting takes centerstage in the realm of tunneling. This article delves into the critical role of adaptive measures in addressing climate change and

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Safe Working Practices - Safety in Construction of Underground Structures in the Complex Geology of Tehri Pump Storage Project – A Case Study

Safe Working Practices - Safety in Construction of Underground Structures in the Complex Geology of Tehri Pump Storage Project – A Case Study

Dr. Rakesh Kumar Khali, Vice President - Operations, (Tunnel, UG Structures & Hydro Power), G.R. Infraprojects Ltd. highlights the technology incorporated for safety in construction during the course of the Tehri Pump Storage Project and cites examples

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Tunnelling in Challenging Topography & Geological Conditions for a Railway Doubling Project in Eastern Ghats

Tunnelling in Challenging Topography & Geological Conditions for a Railway Doubling Project in Eastern Ghats

The East Coast Railway is constructing a new railway line parallel to an existing one in the Koraput-Singapur Road section. This 164-km long railway line has 36 existing tunnels and 24 tunnels for proposed second line. The existing line was constructed

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China's first EPB TBM exported to South America was off the Production Line at CRCHI

China's first EPB TBM exported to South America was off the Production Line at CRCHI

On September 27th, China’s first EPBM to be exported to South America, manufactured by CRCHI, left the production line. With a total length of 105m and an excavation diameter of 9.8m, the TBM will be soon deployed at the first metro project in South

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Role of Drum Cutters in Tunnel Construction

Role of Drum Cutters in Tunnel Construction

Drum cutters are multifaceted tools that find extensive use in engineering and construction industries; they are indispensable for excavation and tunnelling, crushing road pavement, and in mining operations. Tunnel construction has always been

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Waterproofing Tunnels

Waterproofing Tunnels

Keng Senephimmachack, Business Development Consultant, DYK Group, Canada, throws light on the importance of waterproofing tunnels, types of waterproofing membranes available, their advantages and disadvantages, and why choosing the right solution

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Navigating The Subterranean

Navigating The Subterranean

Dr. Manoj Verman, delves into the intricacies of India’s tunnelling landscape, exploring its challenges, achievements, technological advancements, highlighting the pressing need for improvements, and exploring cutting-edge technologies

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TERRATEC - Hard Rock Double Shield TBM starts operations in Vishnugad-Pipalkoti Hydropower project

TERRATEC - Hard Rock Double Shield TBM starts operations in Vishnugad-Pipalkoti Hydropower project

TERRATEC is pleased to announce that the Ø9.86m Hard Rock Double Shield TBM has commenced excavation for Vishnugad-Pipalkoti Hydropower Project in India. The TBM is currently working for Hindustan Construction, which is the main contractor of this

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Carbon Saving Initiatives Boosting PSCL Development

Carbon Saving Initiatives Boosting PSCL Development

According to Benoit de Rivaz, Technical Director, Bekaert BP Underground Solutions, carbon saving is boosting further development of Permanent Sprayed Concrete Lining (PSCL). Achieving decarbonisation in tunnel construction is not only possible

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CRCHI - Mega Slurry TBM Jinghua Completes West Line Tunnel of Beijing East Sixth Ring Road Reconstruction Project

CRCHI - Mega Slurry TBM Jinghua Completes West Line Tunnel of Beijing East Sixth Ring Road Reconstruction Project

On June 28th, the Beijing East Sixth Ring Road Reconstruction Project reported that its slurry TBM “Jinghua” had successfully made a breakthrough on the west line tunnel. This marks that the first line of China’s longest shield machine expressway tunnel

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Sandvik Inaugurates New Tunnelling Jumbo Drill Manufacturing Facility in Pune

Sandvik Inaugurates New Tunnelling Jumbo Drill Manufacturing Facility in Pune

In line with its ‘Make in India’ vision, Sandvik’s new and highly advanced Tunnelling Jumbo Drill manufacturing facility underscores its commitment to local manufacturing, maintaining its high-quality standards, designed for use in Indian projects

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Φ14.02 TBM 'New Crossing' Assists the Breakthrough of Shanghai Airport's Link Line Tunnel Section Paralleling with High Speed Railway

Φ14.02 TBM 'New Crossing' Assists the Breakthrough of Shanghai Airport's Link Line Tunnel Section Paralleling with High Speed Railway

On 12th April 2023, the 14.02-meter large diameter CRCHI TBM named ‘New Crossing’ successfully completed its Lot II tunnel section tunnelling of the Shanghai airport link line of the first municipal railway. The Shanghai Airport Link Line Lot II is the key

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CRCHI Creates World Record - Deploys 52 TBMs at Guangzhou Metro Construction

CRCHI Creates World Record - Deploys 52 TBMs at Guangzhou Metro Construction

The construction project of Guangzhou Metro Line 18/22 - the largest metro investment in China - has attracted much attention. CRCHI has tailored 52 φ8.8m EPB/Slurry TBMs for the project, creating a world record of the largest TBM construction group

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Managing Geological Complexity in BVC and PAC of Tehri PSP

Managing Geological Complexity in BVC and PAC of Tehri PSP

Tehri hydroelectric project is located on the left bank of River Bhagirathi in the state of Uttarakhand. Tehri Pumped Storage Project (PSP) comprising 4 reversible pump-turbine units of 250 MW each, involves construction of an underground Machine Hall

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