Deterioration Survey of Buildings on Gunkanjima Using a Tracked Vehicle with a Work Arm

Abstract

Investigating the deterioration of buildings on Gunkanjima, which is a component of World Heritage, is crucial for preserving the island’s warship-like ridge and safeguarding the Industrial Revolution Heritage of Meiji Japan for future generations. In FY2023, the Committee for the Evaluation of Building Deterioration Status and Structural Strength is conducting a comprehensive survey of all buildings on Gunkanjima. However, concrete structures over 100 years old, such as Building No. 30, have deteriorated to the extent that human interior surveys are no longer feasible. This paper presents the findings from an investigation into the deterioration of Building No. 30, which is inaccessible to humans, conducted using a tracked vehicle equipped with a work arm. This represents the world’s first attempt at employing a tracked vehicle with a work arm for the investigation and inspection of the interior of a building where human access is restricted.