EARTH RETAINING METHOD AND SUPPORTING SYSTEM: Fid-Bau Portal

EARTH RETAINING METHOD AND SUPPORTING SYSTEM

HENDRO MARYONO

PROBLEM TO BE SOLVED: To provide an earth retaining method and a supporting system in which the number of use of temporary construction members such as the support is suppressed, and the workability is preferable.SOLUTION: An earth retaining method is characterized as follows: a pile installation step, a first roller installation step, a first supporting installation step, a second roller installation step, a second supporting installation step, a retaining wall support step and a concrete placement step are performed in a predetermined area B1; the concrete placement step is repeatedly performed from a pile installation step to the front area B2 at the front of the excavation direction from a predetermined area B1; a first support 3A removed after shrinking a stretching jack 4 of the predetermined area B1 is used in the first supporting installation step; and a second support 3B used in the predetermined area B1 is used in the second supporting installation step.SELECTED DRAWING: Figure 9

【課題】支保工等の仮設部材の使用数を抑えて、作業性の良い山留め工法及び支保工システムを提供する。【解決手段】所定の領域Ｂ１において、杭設置工程、第一ローラー設置工程、第一支保工設置工程、第二ローラー設置工程、第二支保工設置工程、山留め壁支持工程、コンクリート打設工程を行い、所定の領域Ｂ１よりも掘削方向の前方の前方領域Ｂ２に対して、杭設置工程からコンクリート打設工程を繰り返し行い、第一支保工設置工程では、所定の領域Ｂ１の伸縮ジャッキ４を縮めた後に撤去した第一支保工３Ａを用い、第二支保工設置工程では、所定の領域Ｂ１で使用した第二支保工３Ｂを用いることを特徴とする。【選択図】図９

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