…Wooden piles have been used for a very long time, but are not used much these days due to problems with corrosion and the depletion of wood resources. Concrete piles are divided into precast concrete piles, which are manufactured in a factory or on-site and then driven into the ground, and cast-in-place piles, which are made by pouring reinforced concrete into a hole excavated in the ground. Precast concrete piles include reinforced concrete piles (RC piles), prestressed concrete piles (PC piles), and high-strength concrete piles (AC piles), and are usually 30 to 60 cm in diameter and have a bearing capacity of approximately 15 to 120 t. … *Some of the terminology that refers to "precast concrete piles" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…木杭は非常に古くから用いられてきたが,腐食や木材資源の枯渇の問題から現在ではあまり用いられていない。コンクリート杭はその製造方法から工場または現場で製作されてから地中に貫入する既製コンクリート杭と,地中に掘削した穴に鉄筋コンクリートを打設して作る場所打杭とがある。既製コンクリート杭には鉄筋コンクリート杭(RC杭),プレストレストコンクリート杭(PC杭),高強度コンクリート杭(AC杭)などがあり,直径は通常30~60cm,許容支持力はおよそ15~120tである。… ※「既製コンクリート杭」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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