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Marine civil engineering work

Marine operations

Quays and piers, breakwaters and revetments, dredging, reclamation and backfilling, wave and erosion countermeasures, ground improvement, ship mooring and lifting facilities, navigational route marking facilities, wave and earthquake observation facilities, disaster recovery, renewal, temporary construction
 
"Offshore construction" is greatly affected by natural conditions, and on-site work is carried out in a unique environment. Based on the abundant experience we have cultivated in salvage work (sea rescue), we make full use of people, materials, and machinery with the basic principle of in-house construction, and do our utmost to create "products that meet the needs" in our construction work.
We provide comprehensive support for a wide range of marine-related work, including port facilities that serve as logistics hubs, coastline protection facilities such as headlands and offshore breakwaters, maintenance and management of navigational aids that facilitate safe ship navigation, as well as maintenance of wave observation equipment and installation of data communication cables. We have a proven track record.
Removal of obstacles (debris)
Removal of obstacles (debris)
L-shaped retaining wall installation
L-shaped retaining wall installation
Wave-dissipating block installation
Wave-dissipating block installation
dredging
dredging
Caisson installation
Caisson installation
Pile driving
Pile driving
 

River and lake operations

Breakwaters, revetments, quays, dredging, wave and erosion countermeasures, purification measures, ground improvement, fishing reefs and fishways, ship mooring and mooring facilities, navigational marking facilities, water quantity and water quality observation facilities, disaster recovery, renewal, temporary construction
 
Rivers and lakes are closely related to our daily lives and are widely used as waterways, fishing grounds, and places to relax. We carry out dredging work to maintain waterways, create fishways for fish to pass through and fishing reefs for fish to live in, revive aquatic plants and build waterside parks that are places of relaxation for people, piers that provide moorings for various ships used for fishing, transportation, and leisure, and water purification facilities.
 
In "river" where disasters frequently occur, once heavy rainfall occurs, disasters due to flooding and erosion continue, and this natural threat has a major impact on people's lives. We respond to emergency construction work such as flood control and disaster recovery, and have a track record of building observation equipment and facilities for systematic maintenance and management of rivers.
Backhoe Dredge
Yaita punching
Seawall and embankment
Block manufacturing and installation
Water purification
Rubble wave breaker

Bridge Construction

Bridge undersides, bridge upper parts, bridge decks, seismic reinforcement, temporary piers, old bridge removal
 
We support bridge improvement and maintenance work to make bridges safer for people to use, including the construction and repair of the substructure, which is the pier of bridges, and the superstructure, which is the road portion of the bridge, which serves as the infrastructure for transportation and is closely related to the lives of local people, as well as seismic reinforcement work to review the impact of earthquakes.
 
In recent years, the demolition and removal of old bridges to be replaced with new bridges due to changes in use or deterioration has become one of our major construction projects, and we are seeing an increase in our track record.
Old bridge removal
Old bridge removal
Steel pipe foundation installation
Steel pipe foundation installation
Upper bridge girder installation
Upper bridge girder installation
Transporting the upper bridge girder
Transporting the upper bridge girder
Lower construction
Lower construction
Earthquake reinforcement
Earthquake reinforcement

Underwater construction

Underwater welding and cutting, underwater concrete, underwater excavation, rubble leveling, installation of observation equipment
 
In land-based work, a large number of workers are assigned to different job types, but in underwater work, divers must perform all job types, and their roles and responsibilities are important. For this reason, they require special qualifications and experience underwater. We are always striving to improve our diving techniques and skills, and we are also paying more attention to safety in our work.
Underwater Backhoe
Underwater Backhoe
Underwater welding
Underwater welding
Underwater core sampling
Underwater core sampling
Stone leveling
Stone leveling
Underwater Survey
Cleaning the propeller
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