Tunnelling Asia 2022 - International Conference on Underground Space
Tunnelling Asia 2022, organized by TAI, which took place in Mumbai during 27th and 28th June, saw a huge gathering of delegates/engineers from all around the world. The theme of the conference: ‘Underground Space: Need of the Day’ focused on
Hydraulic Heave Failure Mitigation Approach for the construction of the Deepest Metro Ventilation and Egress Shaft in India
Dr. Lakshmana Rao Mantri, Assistant General Manager (Designs), and Satya Narayan Kunwar, Project Manager, AFCONS Infrastructure Ltd. , discuss the design and construction challenges of constructing India’s deepest underground metro ventilation
Creating Zero-Carbon Tunnels
Despite a daunting timeline set by the Paris Accord, zero-carbon tunnels are within reach, provided the right solutions are implemented. Er. Vasileios (Bill) Paoulos, CMT, CMRL, L&T Construction Heavy Civil Infrastructure
Readily Biodegradable Soil Conditioning Foaming Agents - A New Technology
Mike A. Sposetti, Global Technical Manager TBM, Underground Construction, Master Builders Solution, Malta, and Manish Gautam, Product Segment Manager - UGC TBM Tunneling Projects, Master Builders Solution, Mumbai, discuss how readily biodegradable
Geotechnical challenges in Tunneling in Himalayas
G.B.Nagendra. General Manager - Projects, Konkan Railway Corporation, gives a first-hand experience of the adverse geological conditions encountered during construction of Tunnel T5 of the Katra-Dharam Section of the USBRL Project and the solutions
Cut & Cover Metro Stations & Other Underground Structures
Vinay Gupta, Director & CEO, Tandon Consultants, discusses the intricacies and issues in the construction of underground metro stations including strata survey during structural design, selection of methods and techniques of construction, traffic management
Importance of Pre-Injections Before Tunnel Front Advancement
Pre-injections or injections ahead of the excavation face in underground construction can, in many situations, offer significant advantages. This is particularly the case in difficult ground conditions like severe water ingress or mechanically
The Next-Gen Sandvik Tunnelling Jumbo Drills offer best-in-class operator comfort and safety
Sandvik's fully automatic, DT 922i and semi-automatic, DT 821C jumbo drills are enabling Max Infra to attain lower drilling costs per meter, with higher machine availability during the ongoing construction of the access tunnel
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
Recovery & Recycling of Excavated Tunnel Waste
Rock excavated in an average tunneling project is often considered waste and mostly finds its way to a landfill. Depending on the geology and excavation method used, the extracted material can have significant quality deviations
Make Safety at Construction Site a Priority
Safety in infrastructure sector means preventing accidents, loss and damage to human life and equipment. Being adequately trained and aware of the equipment in use is imperative, especially in the case of heavy equipment
Construction of J.P (West) to Krishna Park Tunnel using Earth Pressure Balance TBM
Authors C.P Singh, S.K Ganji, and Madhur Goel elucidate the issues and precautions taken during full face mining, using a TBM for the construction of JPW to Krishna Park Downline Tunnel of Package DC-06. This 5.8 m internal diameter
Uttar Pradesh Metro Rail Corporation Limited Underground Construction
Uttar Pradesh Metro Rail Corporation Limited Underground Construction
On 25 November 2013, LMRCL (now UPMRCL) was incorporated as a Special Purpose Vehicle (SPV) under the Companies Act, 1956. The construction of phase I A of Lucknow Metro (Transport Nagar to Charbagh) started on 27 September 2014
Building a Gas Based Economy Through Trenchless Technology – HDD Machines
India’s economic growth is closely associated to its energy demand; in fact, India is the 3rd largest energy consumer in the world. A robust growth is expected in the country’s oil and gas sector, which will make the sector
Tunnelling in Himalayas Where Uncertainty is Highly Certain
Brijesh Ashokbhai Wala, Engineer, National Highways and Infrastructure Development Corporation Limited (NHIDCL), presents the vagaries and challenges in underground construction, with case studies of projects constructed or planned
Intelligent Face Drilling
Anirban Sen, Business Line Manager – Underground Division, Epiroc Mining (India), explores the technologies, methods and benefits of modern intelligent face drilling equipment, the reasoning behind selection of ‘smarter’ face drills
Construction of Head Race Tunnel for Sewa Hydroelectric Project (Stage-II) LOT SW-1
This case study of the Sewa H.E. Project (120MW) in the Kathua district of Jammu and Kashmir, covers the planning process and various construction features of a 10.02km long, 3.3m diameter horseshoe shaped concrete lined tunnel
Strabag AG Builds Tunnel Systems Using Progress Machines
Strabag AG implements complex construction projects, particularly in tunneling and infrastructure development, and is represented in around 30 countries worldwide. It has been active in the fields of building construction, civil
Lochweidli Tunnel, Switzerland - Engineering, on-site services using DokaMT - a rentable tunnel system
Construction is underway on a tunnel as part of a bypass to relieve traffic for communities in Toggenburg, Switzerland. For Doka’s formwork experts, keeping in view the conditions of this project, their new, rentable tunnel system
CRCHI Urja Becomes First TBM to Complete Tunnelling in Phase-2 of Bangalore Metro
On 22nd September 2021, hard rock/slurry TBM Urja (DZ670) manufactured by China Railway Construction Heavy Industry Cooperation Limited (CRCHI) achieved a breakthrough from the Cantonment Station to the Shivaj Nagar Station
CREG High-Pressure Hydro-Coupling TBM Constructing Hard Rock Tunnels
Hard Rock Tunnel Boring Machine (TBM) is the first choice for the construction of hard rock tunnels because it is a fast, safe, and environmental-friendly construction method. As overburden increases, the ground stress of
German Shotcreting Machine helps speed up construction of Mumbai-Nagpur Expressway
The Mumbai-Nagpur Expressway is delayed until 2022 due to Covid-19. In the meantime, a machine with remarkable operational reliability was specially flown in from the supplier in Germany to help speed up the project.
Robbins offers attractive options to contractors to make its - TBM cost-effective
US Tunnel Boring Equipment manufacturer, The Robbins Company, will continue to make owning and operation of its TBMs cost-effective for Indian contractors. It will also explore newer vistas of engagement with
GCPL’s Innovative products for Underground Construction
Geo Constech (GCPL), one of the leading solution providers of material and technology, introduces Druc-Svelta, Druc-Si’ment Cap, Druc-Stone, Druc-Colata 41, and Druc-Tyrocrete. With an objective
Boring Machine for Making Horizontal Bores Under the Ground
Trenchless construction is a method of laying services under the ground without disturbing the surface structures. The imported underground horizontal drilling machines are available
Aspects of Structural & Civil Engineering in Deep Shaft Mine
The "DEEP SHAFT COAL MINE" consists of essentially two vertical shafts, one to hoist men and materials, and the other for winding coal from deeper seems."MINE SHAFT" surface structures
Sand for Concrete From Steel Mills Induction Furnace Waste Slag
For the last 20 years, the use of by products of various origins in the production of concrete has become an increasingly widespread practice in the world. The main advantages are all the elimination of scraps
Optimization of Copper Slag and Fly Ash for Soil Stabilization
Sub-grade soil stabilization is one of the primary and major processes in the construction of any highway. The aim of this research paper is to formulate a model to predict variation in the values of CBR
Building Resistant to Earthquake through Hidden/Strip Beam at Footings
Studies on hidden beams have been carried by various researchers. Its use for high rise buildings with raft foundation is of very useful. However, its use for low rise buildings may not be effective to a considerable
Sustainability – A Cement Perspective
The cement industry is one of two primary industrial producers of carbon dioxide (CO2), creating up to 5% of worldwide man-made emissions of this gas, of which 50% is from the chemical process
