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2012年3月13日 (火)

砕石杭工事見学

砕石杭工事の見学に菊川まで行きました。

既成杭や柱状改良と違い、自然の砕石を使った杭。重機は一緒だが、オーガーの先端がピストン運動し充填した砕石を締め固める。

01

オーガーで穴を形成し、砕石を充填・転圧する。長さは4mmまで。砕石杭が水を通すので、液状化対策にもなる。欠点は、残土が多くなる。

02

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投稿: liiiiiiiiiiiii | 2016年9月24日 (土) 16時37分

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