CHARACTERISTICS OF SLOPE FAILURES IN MAKINOHARA, JAPAN

Abstract

Makinohara City,located in south-central Shizuoka Prefecture in Japan, is renowned for the production of high quality Japanese green tea. Approximately 25% of Makinohara City’s land is used as tea plantation fields and annually 5,800 tonnes of tea is produced. However, slopes in this region are occasionally subject to failures following construction activities. In this light, this paper investigates characteristics of slope failures in Makinohara region. Based on the author’s experience, a number of recommendations are also made for slope analysis and mitigation works