Deep Scan Tech

Deep Scan Tech is unlocking the hidden secrets of Suomenlinna's historic drydock

Suomenlinna [1], the esteemed maritime fortress near Helsinki, sometimes called the Gibraltar of the North, holds a treasure trove of history within its ancient walls. Nestled within this UNESCO world heritage site lies a remarkable piece of engineering marvel—possibly the oldest operating drydock [2] in the world—established centuries ago, in the age of large wooden sailing ships. Called to the task by the caretakers of this esteemed site, Deep Scan Tech has embarked on a groundbreaking mission to ensure the integrity of Suomenlinna's drydock using its cutting-edge underground 3D scanning technology.

Deep Scan Tech’s non-invasive and non-destructive technique has proven to be a game-changer in understanding the vital underground infrastructure surrounding the drydock while protecting its archaeological value. With a focus on locating potential leaks and unravelling the mysteries of hidden structures, Deep Scan Tech employed its 3D scans to the ground surrounding the basin reaching an impressive 20 meters. The basin was constructed more than 200 years ago by filling areas between small islands. Different materials were used, including earth-covered wooden dams. The current condition of these structures is largely unknown and, therefore, poses difficulties on their upkeep and the planning of future repairs.

“Deep Scan Tech has embarked on a groundbreaking mission to ensure the integrity of Suomenlinna's drydock using its cutting-edge underground 3D scanning technology.”

One of the primary objectives was to identify suspected leaks that could jeopardize the drydock's structural stability in the future. By harnessing the power underground 3D scans, the team pinpointed the likely locations of these leaks with precision, allowing for planning timely and targeted repairs. This proactive approach ensures the long-term preservation of the drydock and safeguards its historical significance for generations to come.

Moreover, the underground 3D scans proved invaluable in uncovering the secrets of Suomenlinna's underground infrastructure. The team successfully mapped the underground conditions around the drydock, shedding light on the rich engineering heritage of the site. In addition, the exact shape and location of the discharge pipe, constructed at different times using various materials, were explored with the scans. This invaluable knowledge equips planners and restoration experts with essential information for future works and repairs within the Suomenlinna drydock area.

One of the remarkable advantages of Deep Scan Tech technology is its non-intrusive nature, making it the ideal solution for investigating historic sites like Suomenlinna. With the technology, there is no need for disruptive drilling or excavation, ensuring the preservation of the site's archaeological integrity. This approach not only translates into significant cost savings but also upholds the cultural and historical value of Suomenlinna. Together, with our partners, we can protect the past and build a legacy for the future generations.

[1]: World heritage site Suomenlinna
[2]: The dry dock of Suomenlinna

 Back to the News