日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 H (地球人間圏科学) » H-DS 防災地球科学

[H-DS09] 地すべりおよび関連現象

2019年5月28日(火) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:千木良 雅弘(京都大学防災研究所)、王 功輝(京都大学防災研究所)、今泉 文寿(静岡大学農学部)

[HDS09-P15] Deformation of slope models with different orientations of weak planes

*taeyuan tseng1Kuang-Tsung Chang1 (1.National Chung Hsing University)

キーワード:cataclinal slope, analcinal slopes, rainfall, Particle Image Velocimetry (PIV), weak planes, deformation

Weak planes influence failure and deformation of slopes. We conducted experiments to simulate slopes of different orientations of weak planes, including cataclinal and analcinal slopes with 30° and 60° inclination angles of weak planes. We stacked artificial bricks to make small-sized slope models. The artificial bricks were made of gypsum, sand, cement and water with different weight proportion. In view of the scaling law, the artificial bricks were made less strength than natural rocks. The slope models were weakened under rainfall, resulting in deformation and final collapse. The slope deformation processes were photographed by a camera, and the displacement vector fields were analyzed using the Particle Image Velocimetry (PIV). The deformation and accumulated displacements were compared between slopes of different orientations of weak planes.