Continuous underground wall

Japanese: 連続地下壁 - れんぞくちかへき

A continuous wall is constructed by excavating a wall-shaped trench underground using a stabilizer to prevent the excavated wall surface from collapsing, and pouring concrete into it. There are wall-shaped and column-shaped (continuous column piles) types, but recently, the term "continuous underground wall" generally refers to the wall-shaped type, and it is called various other names as synonyms, such as underground (medium) diaphragm wall method, stabilizer method, and mud wall method. This method was developed in Europe, and was first implemented in Japan in the mid-1950s. Since then, it has been used rapidly as a countermeasure against construction pollution such as noise, vibration, and ground subsidence due to the increase in construction work in cities in the 1960s.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

安定液を用いて掘削壁面の崩壊を防ぎながら地下に壁状の溝孔を掘削し，これにコンクリートを打ち込んで構築する連続した壁体。壁状のものと，柱列状のもの(柱杭の連続したもの)があるが，最近では，連続地下壁といえば，一般に壁状のものを指しており，同義語として，地下(中)連続壁工法，安定液工法，泥水壁工法などと多種多様の呼ばれかたをされている。この工法はヨーロッパで開発された工法であり，日本では，昭和30年代半ばに初めて実施され，それ以後，40年代の都市内の建設工事の増加と，それに伴う騒音･振動，地盤沈下などの建設公害の対策工法として利用度が増大し，急速に発展した。

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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