A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUT MATERIAL INJECTION DEVICE AND INJECTION METHOD
To inject a grout material into the foundation ground at the appropriate pressure and volume.SOLUTION: An injection device 100 comprises: an injection unit 10 for injecting a grout material 6 into a boring hole 3b; an optical fiber cable 40 inserted into an observation hole 7 formed in the vertical direction in the foundation ground 1, and distorted with the displacement of an inner wall of the observation hole 7 in the vertical direction; a strain measurement unit 50 for measuring strains at a plurality of positions in the optical fiber cable 40; and a control unit 30 that calculates a displacement amount of the optical fiber cable 40 using the strain measured by the strain measurement unit 50, and controls the injection unit 10 based on the calculated displacement amount.SELECTED DRAWING: Figure 1
【課題】グラウト材を適切な圧力及び量で基礎地盤へ注入する。【解決手段】注入装置１００は、ボーリング孔３ｂにグラウト材６を注入する注入部１０と、基礎地盤１に鉛直方向に形成される観測孔７に挿入され、鉛直方向への観測孔７の内壁の変位に伴って歪む光ファイバケーブル４０と、光ファイバケーブル４０における複数の位置での歪みを計測する歪み計測部５０と、歪み計測部５０により計測される歪みを用いて光ファイバケーブル４０の変位量を算出し、算出された変位量に基づいて注入部１０を制御する制御部３０と、を備える。【選択図】図１
GROUT MATERIAL INJECTION DEVICE AND INJECTION METHOD
To inject a grout material into the foundation ground at the appropriate pressure and volume.SOLUTION: An injection device 100 comprises: an injection unit 10 for injecting a grout material 6 into a boring hole 3b; an optical fiber cable 40 inserted into an observation hole 7 formed in the vertical direction in the foundation ground 1, and distorted with the displacement of an inner wall of the observation hole 7 in the vertical direction; a strain measurement unit 50 for measuring strains at a plurality of positions in the optical fiber cable 40; and a control unit 30 that calculates a displacement amount of the optical fiber cable 40 using the strain measured by the strain measurement unit 50, and controls the injection unit 10 based on the calculated displacement amount.SELECTED DRAWING: Figure 1
【課題】グラウト材を適切な圧力及び量で基礎地盤へ注入する。【解決手段】注入装置１００は、ボーリング孔３ｂにグラウト材６を注入する注入部１０と、基礎地盤１に鉛直方向に形成される観測孔７に挿入され、鉛直方向への観測孔７の内壁の変位に伴って歪む光ファイバケーブル４０と、光ファイバケーブル４０における複数の位置での歪みを計測する歪み計測部５０と、歪み計測部５０により計測される歪みを用いて光ファイバケーブル４０の変位量を算出し、算出された変位量に基づいて注入部１０を制御する制御部３０と、を備える。【選択図】図１
GROUT MATERIAL INJECTION DEVICE AND INJECTION METHOD
グラウト材の注入装置及び注入方法
IMAI MICHIO (author) / NASUNO KYONOBU (author) / MATSUMOTO SHINYA (author) / TAKAHASHI KATSUYA (author) / MASUMOTO KAZUHIKO (author) / TOBE HAYATO (author)
2019-10-03
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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