補強土(2)

[III-157] Relationship between distribution of fine particle content by depth and water level in road embankment

〇Kenji Mtsukata¹, Kouji Matsukawa¹, Catochi TEAM², Yuu Hujiwara², Hiroaki Hoshino², Yikio Nakata³ (1.NEXCO West Nippon Consultants Co. Ltd., 2.West Nippon Expressway Company. Ltd., 3.Graduate School of Engineering, Yamaguchi University)

Keywords:groundwater level, groundwater survey, gradation, grain size distribution, fine fraction, embankment

In practice, the authors have continuously observed the water level of the existing embankment, and have often observed that the water level in the embankment is divided into two or more. Understanding the water level in the embankment is one of the most important issues when examining the stability of the embankment. In this paper, we installed multiple groundwater level observation wells in high embankment where it is necessary to consider embankment reinforcement work and conducted long-term observation for more than one year. Here are two examples that confirmed this.