| description abstract | The damage caused by the aging of sewage pipe systems has become
one of the major rising problems in modern cities. The traditional
method to search for damage points of sewage pipes is the use of cameras
and human observation. However, the use of these methods to check
all the sewage pipes in the city will require a great deal of time
and money. In this paper, a quantitative analysis on sewage pipe damage
is reported. This study utilized the results of the sewer investigation
in Tokyo. Based on this analysis, a quantification theory type II
is proposed to describe the relationship between various factors that
contribute to the damage of sewage pipe systems. Thus, these factors,
including pipe diameter, number of years since installation, type
of road and foundation, overburden, and pipe slope, can be used to
judge if the sewage pipe displays corrosion, cracks, or breakage.
As a result, the diagnosis model can be used to determine the likely
extent of damage to an existing sewage pipe system. | |
