Summary
Detail
Future infrastructure business
special interpretation and probe technologiesFuture infrastructure business
Super-long bridge core technology
Cable bridge form retaining technology
This high-efficiency long-span cable bridge technology is being used by us in the Dongi No. 1 Bridge (400-meter section of the Jeoksung-Jeongok road; Korea’s first earth-anchored cable-stayed bridge).
Structure materials
To develop the core materials technology required in long-span cable bridges, we are currently developing high-pressure concrete lifting technology (vertical height of 400 meters), low-temperature concrete pouring, and the anti-washout underwater concrete for offshore foundations.
- Items to develop
- High tower building purpose
- Towers exceeding 400 meters
- Anchorage building purpose
- Reduced anchorage cracks due to temperature change by more than 50%
- Offshore foundation building purpose
- Offshore slump flow 600 meters composite performance
- R&D
- Core technology
- Materials development, pouring manual, pouring technology
- Concrete that can be used for long- and wide bridges and that reduce construction time
- Test bed
- Technology support for on-site concrete pouring
- Mock-up, construction process, pouring manual
- Final output
- High-altitude concrete lifting
- (High tower building purpose)
- Low-temperature concrete pouring
- (Anchorage building purpose)
- Multiple-performance concrete and on-site pouring manual
- Offshore foundation
< Goals to achieve >
High-efficiency walled steel-pipe pile technology
The walled steel-pipe piles linked by steel couplings can be used as a permanent foundation as well as a temporary dike as they support large loads.
In Korea, the walled steel-pipe piles have been used in port facilities, but lately have been suggested for use in offshore foundations for soft ground.
Large-section tunnel technology
Practical TBM technology
This technology uses a tunnel boring machine with minimal ground impact for use in crowded downtown areas, riverbeds, and seabed tunnels.
3D underground scanning technology
This technology identifies changes in the degree of underground stability during excavation by means of 3D measuring technology. Lotte E&C is using the technology in a number of construction sites.
Technologies to respond to large slope stability and long-depth weak ground
Technology for large slope stability
We employ the most reasonable, economical ways to build structures on large slope sections.
Technology for long-depth weak ground
We determine the best ways to cut construction time and respond to the settling possibilities of weak ground.
Special bridge building technology
Ever wider and longer bridges are being built and builders are also working in difficult terrain such as high altitude and road crossings. Lotte E&C provides total solutions to these situations including pushing, heavy lifting, pulling, and rotation.
