'The California High-Speed Rail Authority (Authority) Board of Directors has certified the Final Environmental Impact Report/Environmental Impact Statement (Final EIR/EIS) and approved the approximately 43-mile project for the San...

https://www.youtube.com/watch?v=pSleg2_FoNA As the tunnelling machines under the Chilterns approach the four-mile mark, HS2 completes the first of thirty-eight underground connections between the northbound and southbound tunnels The...

The National Company for Road Infrastructure Management (CNAIR) announcement does not mention tunnel but I heard via a contact that it has a tunnel section. I translated it via automatic translation. Original announcement in Romanian. CNAIR has...

52 Uear old worker from China died after crushed by a pile of stone while working in a tunnel for the Batang Toru Hydroelectric Power Plant (PLTA) construction project in South Tapanuli Regency (Tapsel), North...

Public Procurement Service announced on the 21st that it will execute a construction bid worth KRW 247.2 billion for 52 Construction work in the week of 22 August. One project is Incheon Geomdan District Urban Facility (3-1) Tunnel Construction...

Hello to everyone, I am reading the posts in this group with great interest. I hope you do not mind if I propose an improvement. When I come to the group, I see a list of posts. It is not immediately visible to see for which country or even...

CRCHI chairman: Indigenous tech making China global leader in heavy industries China has become a global leader in heavy industries, with its self-developed technologies, says Liu Feixiang, chairman of China Railway Construction Heavy Industry...

  https://www.youtube.com/watch?v=FaK7ew2Xf3U China has become a global leader in heavy industries, with its self-developed technologies, says Liu Feixiang, chairman of China Railway Construction Heavy Industry Corp (CRCHI). Peoples...

Read for money. Published: 21 August 2022 Probabilistic Evaluation of Tunnel Boring Machine Penetration Rate Based on Case Analysis Guangkun Li, Yiguo Xue, Maoxin Su, Daohong Qiu, Peng Wang, Qiushi Liu & Xudong Jiang Research Center of...

The Jiuwandashan No. 4 tunnel in Huanjiang Maonan Autonomous County, south China's Guangxi Zhuang Autonomous Region, was drilled through on Aug. 17, marking the completion of all 108 tunnels of Guiyang-Nanning high-speed railway...

https://www.youtube.com/watch?v=FaK7ew2Xf3U China has become a global leader in heavy industries, with its self-developed technologies, says Liu Feixiang, chairman of China Railway Construction Heavy Industry Corp (CRCHI). Peoples Daily write...

  Probabilistic Time Estimation of Tunneling Projects: The Uri Headrace Tunnel Mohammad Mohammadi, Johan Spross & Håkan Stille Rock Mechanics and Rock Engineering...

  Identifying Rock Loads on TBM Shields During Standstills (Non-Advance-Periods) Paul J. Unterlass, Georg H. Erharter & Thomas Marcher Geotechnical and Geological Engineering...

  A New Zealand Geotechnical Society Symposium paper. I believe you will find it interesting. Open Access article. No paywall. These findings will enable a better correlation between TBM performance and geological conditions for use in...

From European Digital Museum of Science and Technology,  First train passing through the St. Gotthard tunnel, Switzerland, 1880 Source is ‘Illustrated London News’ (Vol 80/1 p...

Principal/Senior Engineers - Tunnels & Underground Structures (Expressions of Interest) This position is available at the following locations: Melbourne, Victoria, Australia Sydney, New South Wales, Australia Brisbane, Queensland,...

  Role accountabilities:  Delivering technically complete design information, reports, and checks Producing design documentation, summaries and technical reports for clients Presenting design options and design...

Problems have emerged in some of the 5,000 pre-cast concrete segments. https://www.mirror.co.uk/news/uk-news/hs2-cost-rise-over-concrete-27792811

The U.S. DOT has awarded over $233 million to 11 projects in eight states to improve and modernize vital intercity passenger rail...

He was the chief designer of the Louis-Hippolyte-La Fontaine Bridge-Tunnel which opened in 1967, He has also been a member of the board of directors of Lalonde Valois Lamarre Valois et Associés, which became Lavalin, then SNC-Lavalin...