Tunnel Engineering

Tunnel engineering refers to the excavation and construction of passages in underground or mountainous areas for transportation, energy, drainage, or municipal pipelines. It covers geological surveying, design, excavation construction, support structures, ventilation and drainage, and safety monitoring. Depending on the construction method, it mainly includes open-cut method, shield method, and mining (drill-and-blast) method. Tunnel engineering plays a key role as critical infrastructure in urban transportation, railway and metro, water conservancy and hydropower, and energy pipeline construction.
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Tunnel Engineering - News

Sweden's Hexagon Signs $535 Million Agreement to Acquire Geotechnical Engineering Software Company
On October 9, Swedish measurement technology company Hexagon announced that it has signed an acquisi...
2026-10-14
TBM Marutham of Chennai Metro Phase II in India completes 601-meter tunnel breakthrough
Chennai Metro Rail Limited (CMRL) has completed a construction milestone in the Chennai Metro Phase ...
2026-10-06
Chinese Team Optimizes Air Injection Strategy for Compressed Air Energy Storage, Raising Storage Efficiency to 87.5%
On September 28, a research team from Hunan University of Technology conducted a study on the air in...
2026-10-05
Germany's Hamburg A7 Viaduct Completes Eight-Lane Expansion and Officially Opens to Traffic
On September 28, the K20 Elbmarsch Viaduct (Hochstraße Elbmarsch) on the A7 motorway south of the El...
2026-09-29
UK's Lower Thames Crossing Road Project Begins Early-Stage Construction
September 17 news: The UK's Lower Thames Crossing project has entered the construction phase, with w...
2026-09-20
Canada's Echo Seismic Establishes EchoVision Division to Expand Geothermal and Geotechnical Exploration Services
On September 17, Canadian seismic exploration service provider Echo Seismic officially established a...
2026-09-19
Auckland, New Zealand's NZ$5.5 Billion City Rail Link Officially Opens
The City Rail Link (CRL) in Auckland, New Zealand has officially entered passenger service. This is ...
2026-09-18
UK TfL Launches £19 Million Elizabeth Line Tunnel Ventilation System Maintenance Tender
Transport for London (TfL) has launched a tender for tunnel ventilation and control system maintenan...
2026-09-18
Award of the €77 Million Waterfront Renovation Project at the Port of Huelva, Spain, Is Expected in the First Half of 2027
On September 14, the Port Authority of Huelva, Spain, stated that the first-phase works of the compr...
2026-09-15
Michigan Reassesses Enbridge Line 5 Tunnel Project Permits
On September 9, Michigan Governor Gretchen Whitmer and Phil Roos, director of the Michigan Departmen...
2026-09-12
Indore Metro's First 410-Ton TBM Launched, Underground Section Enters Shield Tunneling Phase
On September 3, the Madhya Pradesh Metro Rail Corporation Limited (MPMRCL) launched "Narmada," the f...
2026-09-05
Yuba Water Agency Awards $13.9 Million Contract for New Colgate Slope Stabilization
On September 1, the Yuba Water Agency in California, U.S., awarded a $13.9 million construction cont...
2026-09-04

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