| Summary: | 碩士 === 國立臺灣海洋大學 === 河海工程學系 === 92 === Due to the rapid economic growth, people are moving into the urban areas. According to the UN's prediction, in 2010, over 51﹪ population of the world in 2010 will live in the urban areas. Urbanization will induce some problems toward hydrologic cycle such as the increasing of water resource and energy demand, pollutant expansion, heat island effect intensification, ecological environments deterioration, urban flood, etc. Many developed countries have adopted rainwater storage and infiltration facilities as the means to solve urbanization problems.
The purpose of this research is to study the characteristics of infiltration gutters. Two different ways of analyses based on the theory of circular infiltration well are used. On-site tests include flowing steady infiltration test, non-flowing steady two-side test, non-flowing steady bottom test and non-flowing steady three-face infiltration test. This study defines the specific infiltration area as the final infiltration flow divided by hydraulic conductivity of saturated soil , and uses specific infiltration area per length as the criterion for comparison. From the results of experiments, the correlations among and water depth of non-flowing steady two-side and three-face infiltration tests are all linear dependent for both red-brick type and permeable-brick type infiltration gutters. The correlations among and of non-flowing steady bottom infiltration tests are also linear dependent for both red-brick type and permeable-brick type infiltration gutters. Furthermore, the final infiltration flows per length of different water depths and widths（W）of infiltration gutters can be easily obtained from the equations among , and . These equations can also put in use as the practical tools for designing infiltration gutters in other sites of different soil conditions.
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