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SAMPLE ACQUISITION SYSTEM AND SAMPLE ACQUISITION METHOD OF IMPROVED GROUND
To provide a sample acquisition system and an acquisition method for quickly acquiring a sample of an improved ground obtained by agitating and mixing a target ground and an improved material while suppressing an increase in work man-hours at a construction site.SOLUTION: A holding unit 2A constituting a sampler is placed at a standby position above each agitating blade relative to a ground improvement device in which shafts 8A... provided with agitating blades 9 are adjacent to each other and moved up and down in an upright state. Based on the plan view position of the agitating blades of the shafts 8A and 8B grasped by an agitating blade monitor unit, the control unit controls at least one rotation angle position of the shafts 8A and 8B so that the holding unit forms a moving region that can move downward without interfering with the agitating blades provided on the shafts 8A and 8B, moves the holding unit downward toward an improvement range R of a target ground B and then moves the same upward to carry out a sample acquisition step of the improved ground R, and accommodates the sample in the holding unit.SELECTED DRAWING: Figure 10
【課題】対象地盤と改良材とを撹拌混合した改良地盤のサンプルを、施工現場で作業工数の増加を抑制しつつ、迅速に取得するサンプル取得システム及び取得方法を提供する。【解決手段】撹拌翼９を備えた複数本のシャフト８Ａ〜を隣接させて立設状態で上下移動させる地盤改良装置に対し、サンプラーを構成する保持部２Ａを各撹拌翼よりも上方の待機位置に配置し、撹拌翼モニタ部により把握されたシャフト８Ａ、８Ｂの撹拌翼の平面視の位置に基づいて制御部が、保持部がシャフト８Ａ、８Ｂに備わる各撹拌翼に干渉せずに下方移動できる移動領域を形成するように、少なくともシャフト８Ａ、８Ｂの一方の回転角度位置を制御し、保持部を対象地盤Ｂの改良範囲Ｒに向かって下方移動させた後に上方移動させて改良地盤Ｒのサンプルの取得工程を実施して、サンプルを保持部に収容する。【選択図】図１０
SAMPLE ACQUISITION SYSTEM AND SAMPLE ACQUISITION METHOD OF IMPROVED GROUND
To provide a sample acquisition system and an acquisition method for quickly acquiring a sample of an improved ground obtained by agitating and mixing a target ground and an improved material while suppressing an increase in work man-hours at a construction site.SOLUTION: A holding unit 2A constituting a sampler is placed at a standby position above each agitating blade relative to a ground improvement device in which shafts 8A... provided with agitating blades 9 are adjacent to each other and moved up and down in an upright state. Based on the plan view position of the agitating blades of the shafts 8A and 8B grasped by an agitating blade monitor unit, the control unit controls at least one rotation angle position of the shafts 8A and 8B so that the holding unit forms a moving region that can move downward without interfering with the agitating blades provided on the shafts 8A and 8B, moves the holding unit downward toward an improvement range R of a target ground B and then moves the same upward to carry out a sample acquisition step of the improved ground R, and accommodates the sample in the holding unit.SELECTED DRAWING: Figure 10
【課題】対象地盤と改良材とを撹拌混合した改良地盤のサンプルを、施工現場で作業工数の増加を抑制しつつ、迅速に取得するサンプル取得システム及び取得方法を提供する。【解決手段】撹拌翼９を備えた複数本のシャフト８Ａ〜を隣接させて立設状態で上下移動させる地盤改良装置に対し、サンプラーを構成する保持部２Ａを各撹拌翼よりも上方の待機位置に配置し、撹拌翼モニタ部により把握されたシャフト８Ａ、８Ｂの撹拌翼の平面視の位置に基づいて制御部が、保持部がシャフト８Ａ、８Ｂに備わる各撹拌翼に干渉せずに下方移動できる移動領域を形成するように、少なくともシャフト８Ａ、８Ｂの一方の回転角度位置を制御し、保持部を対象地盤Ｂの改良範囲Ｒに向かって下方移動させた後に上方移動させて改良地盤Ｒのサンプルの取得工程を実施して、サンプルを保持部に収容する。【選択図】図１０
SAMPLE ACQUISITION SYSTEM AND SAMPLE ACQUISITION METHOD OF IMPROVED GROUND
改良地盤のサンプル取得システムおよびサンプル取得方法
SAEGUSA HIROYUKI (author) / NISHIDA KOTA (author) / FUJIYAMA EI (author) / OGAWA KAZUKI (author) / FUKUDA AKIHIRO (author) / OGAWA KOJI (author)
2021-06-10
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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