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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
New-Gen DRAMIX® Fiber Reinforced Precast Segment Allows Eco Efficiency & Performance
As mentioned in the fib bulletin 83 on Fibre Reinforced Precast Segment: for sustainable use of structural concrete, environmental and mechanical performances of concrete structures must have the same importance. Through sufficiently high mechanical
Breakthrough by two 15.01m Slurry TBMs of CRCHI in two projects
On March 12th 2023, the breakthrough by the largest slurry TBM in China’s Hunan Province marked the completion of the right line tunneling of the Xiangya Road river-crossing tunnel in Changsha City. It represents the largest diameter shield machine tunnel
Sela Tunnel Project - Overcoming The Impossible
The responsibility for construction and maintenance of Balipara-Charduar-Tawang (BCT) Road has been entrusted to Border Roads Organisation (BRO). The 317.520 km long road connects West Kameng and Tawang districts of Arunachal Pradesh to the rest
Slurry TBM ‘Channel Express’ launched by CRCHI for working in Water Supply Tunnels in Singapore
On February 1, 2023, CRCHI attended the launching ceremony of its Slurry TBM ‘Channel Express’. It will be used in the construction of key water supply tunnel project TWRP Pipeline Contract 1 in Singapore where it will bore 1.6km with the inner diameter
China’s Largest TBM - With Panda Face Emerges From Tunnel
On 12 December 2022 ‘Jinxiu’ - China’s largest EPB TBM developed by CRCHI - marked the first smooth breakthrough of the Jinxiu Tunnel, a key control project of the Chengdu-Zigong high-speed railway. Jinxiu is China’s largest diameter EPB TBM with
STRUCINSPECT Technology Transforms Inspection of Los Angeles Metro Tunnel Network
With drones, multispectral optics, and AI, Austrian joint venture transforms tunnel inspection in the US. The world’s first infrastructure lifecycle hub taps the rapidly growing global market for infrastructure inspections. The remarkable thing about
CRCHI showcases total solutions of Underground Engineering Equipment
China Railway Construction Heavy Industry Corporation Limited (CRCHI) brought the whole industry chain products and solutions to bauma CONEXPO INDIA 2023. CRCHI exhibited TBMs, drilling and blasting method equipment, cotton pickers, and other
Sandvik sets up new factory; hands over first ‘made in India’ tunnelling jumbo to KSR Group, Hyderabad
In a historic event held on 30th January, 2023 Sandvik proudly presented the key of the first ‘made in India’ DT820 Tunnelling Jumbo to Mrs. and Mr. Koneru of KSR Group, Hyderabad. The machine was rolled out from Sandvik’s newly set-up state-of-the-art
CRCHI Slurry TBM ‘Avni’ Helps Make a Breakthrough in Bangalore Metro Project
The 6.6m Slurry TBM developed by CRCHI exited the tunnel at Vellara Station, Phase II of Bangalore Metro in India, becoming the first TBM to complete the breakthrough for the whole line of the project. Avni is one of the four slurry TBMs provided by CRCHI
The Bolter Miner - A Technology Revolution for Roadway Development in Underground Coal Mining
In India, coal is still the primary source of energy; over the past few years, there has been quantum jump in coal production level, but it was mostly due to the high percentage share from the opencast sector. The country is witnessing a fast
CRCHI emerges as provider of total underground engineering equipment and solutions
China Railway Construction Heavy Industry Corporation Limited (CRCHI) showcased its comprehensive range of equipment and products at bauma that included solutions for the whole industry chain in the field of
Herrenknecht AG wins bauma Innovation Award 2022 for development of continuous tunnelling
Herrenknecht AG won the highly coveted award bauma Innovation Award 2022 in the category “Machine Technology” for the new development of continuous tunnelling. The award was given for the next innovation boost in the mechanized
The Genesis of Underground Engineering
Regardless of the tunnelling technology used, tunnel designers decide the future success or failure at an early project stage. In fact, designers are the real managers of tunnel construction. The choice of design together with selected contract model is