Rikkai Engineering
We are conducting surveys using underwater drones. There are no restrictions on diving time due to altitude limitations, and therefore no restrictions on survey time.
During the survey, the client and the contractor can confirm the current situation, making it possible to create a better construction plan.
High-altitude dams and cold water areas can also be surveyed without diving restrictions.
Drones prove invaluable in narrow spaces inaccessible to divers.
Video sharing improves explanation accuracy to an advanced level.
A complete investigation system using drones and divers.
"Visible underwater surveys" supported by 34 years of diving experience
Various underwater operations and surveys related to the construction of port structures
Various underwater work and surveys related to river and water supply/sewage construction.
Underwater work and surveys at the bottom of dams and power plants
Aquatic environment survey
(Collection of sediment and seawater, installation of observation equipment such as ADCP,
(Reef surveys, underwater archaeological site surveys)
Other related underwater work
With 34 years of experience in underwater construction, including riverbank reinforcement work in Osaka City, reconstruction after the Great Hanshin Earthquake, reconstruction after the Great East Japan Earthquake, and underwater construction work throughout Japan, I continuously study and strive to develop new, safe, and efficient underwater construction and civil engineering services (welding, cutting, dredging, underwater formwork, installation, removal, etc.).