MEASUREMENT SYSTEM AND MEASUREMENT METHOD

To provide a measurement system and a measurement method capable of easily monitoring an overall behavior of a subsoil including a periphery of an excavation area in a whole period of an excavation construction and an earth-retaining construction.SOLUTION: A measurement system comprises: an absolute position information acquisition part 11 acquiring information exhibiting absolute positions of predetermined measurement positions on a head of an earth-retaining wall 2 constituted using core materials 21 having a longitudinal direction in an excavation direction; a slope angle information acquisition part 12 acquiring information exhibiting slope angles of the core materials 21 measured using a plurality of slope angle detection parts 4 attached to the core materials 21 at a predetermined interval in the longitudinal direction with respect to each slope angle detection part 4; and an output part 13 outputting an information exhibiting an absolute displacement based on the information exhibiting the absolute positions acquired by the absolute position information acquisition part 11 together with information exhibiting a relative displacement based on the information exhibiting the slope angles acquired by the slope angle information acquisition part 12.SELECTED DRAWING: Figure 1 【課題】根切り・山留め工事の全期間において、掘削領域の周辺を含めた地盤の全体的な挙動を容易にモニタリングできる計測システムおよび計測方法を提供する。【解決手段】掘削方向に長手方向を有する芯材２１を用いて構成された山留め壁２の頭部の所定の計測点の絶対位置を表す情報を取得する絶対位置情報取得部１１と、前記長手方向に所定の間隔で芯材２１に取り付けられた複数の傾斜角検知部４を用いて計測された芯材２１の傾斜角を表す情報を傾斜角検知部４毎に取得する傾斜角情報取得部１２と、絶対位置情報取得部１１が取得した前記絶対位置を表す情報に基づく絶対変位を表す情報と、傾斜角情報取得部１２が取得した前記傾斜角を表す情報に基づく相対変位を表す情報を合わせて出力する出力部１３とを備える計測システムである。【選択図】図１