In the city of Angkor, where heavy rainfall occurs in the rainy season, it is important for maintaining urban functions that rainwater drains rapidly. This study focuses on the drainage system of khmer architecture in Angkor pirood. In this paper, we aim to clarify the drainage system of Pre Rup temple established in 961.
There are 16 drainage channels in the temple. In this paper, we examined cross section shape of these drainages from the survey data and examined the drainage capacity. And, from the level survey data of the foundation, the foundation settlement was examined. Then, we analyzed relationship between the drainage capacity of the drainage channel and the foundation settlement.
As the result, it was revealed that the foundation settlement was large near the drainage channel with low drainage capacity. From this, with regard to the limited drainage channel assumed to function properly, it was possible to show the relationship between the drainage capacity and the foundation settlement with a certain probability.