…In addition, because a huge load is placed on the sides as well as the bottom of the dam, the riverbed and both banks must be solid and of good quality. Furthermore, it is not suitable when there is a fault that would cause the rock mass (a large rock mass surrounded by a shear surface and the ground surface assumed in the design, which resists the force from the dam) to slide due to the arch thrust. … *Some of the terminology explanations that refer to "bedrock mass" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…またダムの底部だけでなく側部にも巨大な荷重がかかるため,河床部,両岸とも堅固で良好な岩盤が必要である。さらにアーチ推力によってダムを取り付ける岩盤マス(設計上想定されるせん断面と地表面に囲まれた大きな岩塊。これがダムからの力に抵抗する)が滑るように位置する断層があるときは不向きである。… ※「岩盤マス」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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