… [Shigeru Koike] From [Tunnel] In recent years, new models have been developed that combine new styles and mechanical excavation methods, such as blind types that do not open the front of the shield, earth pressure balance types that store excavated soil between the face and the shield machine to help the face stand up, and mud types that fill the face with bentonite mud, which balances the earth and water pressure, and excavates while balancing the earth and water pressure. *Some of the terminology that refers to the "cut and cover method" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…【小池 滋】 【トンネル】より…近年はシールド前面を開放しない,ブラインド型と呼ばれるもの,切羽とシールド機との間に掘削土砂を蓄え,切羽の自立を助けながら掘進する土圧バランス型,あるいは切羽との間にベントナイト泥水を満たし,これで土圧や水圧と均衡させながら掘進する泥水型など,新しい様式と機械式掘削方式を組み合わせた機種の開発が進み,いろいろな施工条件への適合が計られている。シールド工法 ※「カットアンドカバー工法」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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