(I read in Newsis) On 7 April Hyundai E&C announce 'Hyundai E&C Tunnel Smart Construction Technology' at Han River Tunnel Promotion Center at the site of Hangang Tunnel.

Newsis  write Hyundai E&C will use its own technology (TADAS) to analyze excavation data and ground information in real time, and to suggest optimal driving methods for TBM (Tunnel Boring Machine) operation.

Hyundai E&C also will use TVWS technology for smooth wireless data communication in tunnel construction, smart glasses for teleconferencing with headquarters in real time, Augmented Technology, drones and UGVs (unmanned ground vehicles) and AI technology.

Hyundai has developed innovative methods in tunneling technology.

Hyundai E&C’s Exclusive Patent and New Technology in TBM Engineering

- Disk Cutter Wear Tester
The exact timing and location of the cutter replacement are predicted by measuring the wear of the TBM disk cutter.

- Rotary Cutting Machine
It is designed to simulate the mechanism of the TBM disk cutter when excavating actual rocks.

- Micro EPB TBM
It is an equipment reduced to about an 1/10 size of the EPB TBM. Major drilling variables can be predicted by conducting experiments under similar conditions to the physical world.

- Soft Ground EPB TBM Simulator
Excavating equipment that simulates the mechanism by which TBM excavates soft ground. Patents have been registered for TBM drilling performance, device assessing abrasion level, and a device for measuring shear strength of discharged earth.

- Optimal TBM Operation System and Optimal Operation Method for Rock/Earth Application
Drilling data are analyzed on a real-time basis and optimal change values of drilling variables are delivered to the TBM driver.

Hyundai E&C’s Exclusive Patents and New Technologies in NATM Engineering

- IMG(Intelligent Multi Grouting System)
It is a technology that can inject six wells at the same time, enabling precision control of injection pressure to prevent the ground from splitting or lifting.

- PSTM(Pressurizing Support Tunneling Method)
By forming a reinforcing structure inside the work space, it is possible to suppress and restore ground subsidence during excavation. It is used to drill tunnels under existing upper roads or railroads operating as usual.

- Shortcrete method(Slag shortcrete method + shortcrete flow-linked powder type accelerating agent-based automatic control spray system)
High-quality shortcrete are sprayed uniformly by automatically injecting accelerating agent at a certain rate proportionate to the supplied concrete volume. It is eco-friendly technology using slag, a power generation waste.