I enjoyed reading this article on Geology Engineering. http://geologyengineering.com/2020/08/rock-joint-parameters/

  Good paper. Geological model for the Menai Strait tunnel   K. Sandford and G. Mason Quarterly Journal of Engineering Geology and Hydrogeology, 24 August 2020   Link for the abstract and the access conditions to...

I bet this is an interesting thing to read.  Published in October 2019. Costs between US$7 and US$42. 15 km TBM exploratory tunnel excavation in the construction Lot H33 of the Brenner Base Tunnel 15 km TBM Vortrieb im Los Tulfes Pfons...

This is about the GEREDE tunnel in Western Turkey. It is a water tunnel 5,5m diameter. 31.6km long. The Gerede tunnel that the ITA-AITES Awards conveniently ignored in their awards. Gerede is in a very challenging geology. Gerede tunnel...

Influence Factors of Vibration Response on Supporting-Thrusting System of Tunnel Boring Machine Yongbing Mei,1,2 Yimin Xia ,1,2 Laikuang Lin ,1,2 Yongliang Cheng,3 and Cong Qian1,2 1 College of Mechanical and Electrical Engineering, Central...

Numerical investigation into the effect of stepping on the circumferential joint in the precast tunnel segments under TBM thrust jacks Mohammad Karimi, Department of Mining Engineering, University of Zanjan, Zanjan, Iran Hamid Chakeri,...

Estimation Method for TBM Cutterhead Drive Design Based on Full-Scale Tunneling Tests for Application in Utility Tunnels   Kyoungyul Kim 1, Jungjoo Kim 1, Heehwan Ryu 1, Hafeezur Rehman 2, Turab H. Jafri 3, Hankyu Yoo 2 and Sanggui Ha...

Field Monitoring of the Deformation and Internal Forces of the Surrounding Rock and Support Structures in the Construction of a Super-Span High-Speed Railway Tunnel—A Case Study Daoping Liu, Dingli Zhang, Qian Fang, Zhenyu Sun, Jiwei Luo,...

Research on Stress Characteristics of Segment Structure during the Construction of the Large-Diameter Shield Tunnel and Cross-Passage Zhongsheng Tan, Zonglin Li School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China...

Study on the Ultimate Supporting Force of Shield Excavation Face Based on Anisotropic Strength Theory Chunquan Dai, Hongtao Sui, Chao Ma School of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao...

This case study contains the impact assessment on DTSS Reinforced Concrete(RC) tunnel induced by the shaft excavation work at Woodlands South Flyover. https://www.youtube.com/watch?v=3nqXjkJLnxI

https://www.youtube.com/watch?v=qf99j3FEgkE Speaker: Dr. Cosimo Iasiello (Tunnel & Geotechnical Team Leader, Ayesa) Through this extensive international experience, Dr Cosimo Iasiello will highlight best practice associated with the design...

The tunnelling contractors HOCHTIEF/Züblin consortium had to contend with difficult geological conditions at Germany's Trimberg Tunnel. Short but informative article about this tunnel works in...

Starnberg, a German town in Bavaria, will build a tunnel. The main problem is Starnberg area is partially a seeton area like in the lakebeds. A tunnelling nightmare. If not stabilized, seeton could cause the entire tunnel structure to sink. Solution...

Korea Electric Power Research Institute announced on 14 July: KEPRI succeeded in developing a model for TBM advance rate. The Korea Electric Power Research Institute conducted about 120 experiments on various rock types such as weathered rock,...

The Analysis of Time-Space Effect of Surrounding Rock Deformation of TBM Tunnels in Deep Composite Stratum with or without Support Xiaoming Sun, Chao Ren, Junchao Yuan State Key Laboratory for Geomechanics & Deep Underground Engineering,...

Interesting paper. Numerical appraisal of rock mass anisotropy effect on elastic deformations of a circular tunnel Authors: Vahid Maazallahi and Abbas Majdi School of Mining Engineering, College of Engineering, University of Tehran,...

  The 150-year old Kuckuckslay-Tunnel in Germany (between Trier-Ehrang and Kordel) is being enlarged. What is special? It allows tunnel be used continuously during the enlargement process. Deutsche Bahn gets the tunnel diameter enlarged by...

  En enlightening presentation of American Concrete Institute.  Equally importantly, it is not boring. Not at all. An Overview of the Document ACI 544.7R-16: Report on Design and...

China Railway Group Limited finish 847m tunnel in Beijing and the Xiongan railway. It is not underground. It is metal tunnel on bridge. It stop noise from 350 kph fast trains. It tested for stress last 100...