![A photograph of a construction crane for a micro-tunneling (microtunneling) project in the alpine region of Switzerland Stock Photo - Alamy A photograph of a construction crane for a micro-tunneling (microtunneling) project in the alpine region of Switzerland Stock Photo - Alamy](https://c8.alamy.com/comp/GEP3DX/a-photograph-of-a-construction-crane-for-a-micro-tunneling-microtunneling-GEP3DX.jpg)
A photograph of a construction crane for a micro-tunneling (microtunneling) project in the alpine region of Switzerland Stock Photo - Alamy
![Pfaff Verkehrstechnik supplies WLAN-controlled lifting jack system for the maintenance of the latest multiple-unit trains at BLS's modernised plant in Spiez, Switzerland Pfaff Verkehrstechnik supplies WLAN-controlled lifting jack system for the maintenance of the latest multiple-unit trains at BLS's modernised plant in Spiez, Switzerland](http://www.presseagentur.com/media/5359/Bild1_Quelle_Pfaff-Verkehrstechnik.jpg)
Pfaff Verkehrstechnik supplies WLAN-controlled lifting jack system for the maintenance of the latest multiple-unit trains at BLS's modernised plant in Spiez, Switzerland
![Applied Sciences | Free Full-Text | Prediction of Friction Resistance for Slurry Pipe Jacking | HTML Applied Sciences | Free Full-Text | Prediction of Friction Resistance for Slurry Pipe Jacking | HTML](https://www.mdpi.com/applsci/applsci-10-00207/article_deploy/html/images/applsci-10-00207-g001.png)