Abstract
In urban areas, it is expected that the number of businesses such as reconstruction, renewal, and the construction of new structures will be increased in areas where there is a large volume of remarkably deteriorated infrastructure equipment and underground buried objects. However existing structures are mainly managed by two-dimensional drawings, it is difficult to determine the position and height of underground objects during construction works.
The purpose of this research was to devise a simple 3D model generation method of underground buried objects and establish a method to correct existing 2D drawings. In this research, the authors have tried to generate a 3D model using smartphones and digital cameras, which are recently developing and spreading widely, to examine the possibility of its application to the condition of underground buried objects for the construction planning and the temporary works planning. As a result, it was confirmed that the generated 3D model has positional accuracy that can be used for correction of 2D drawings.
