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A platform for research: civil engineering, architecture and urbanism
GROUND SPECIMEN SAMPLING METHOD AND SAMPLING DEVICE
To provide a ground specimen sampling method and a sampling device which can prevent collected ground specimens from being disturbed even if the sampler head moves upward due to reaction force.SOLUTION: It is characterized by being composed of a piston contact process in which the bottom surface of the piston provided near the lower end of the piston rod is approximately brought into contact with the upper surface of the ground sample, a sampling tube insertion process in which the pressure piston is lowered by water pressure and a sampling tube fixed to the pressure piston is inserted into the soil for collecting the ground sample after the piston contact step, while the holding means keeps the piston and the ground sample in an approximately contacted state, and a ground sampling process for collecting the ground sample after inserting the sampling tube to a predetermined position in the sampling tube insertion process.SELECTED DRAWING: Figure 1
【課題】 反力によってサンプラーヘッドが上方へ移動した場合であっても、採取した地盤試料の乱れ等を防止できる地盤試料のサンプリング方法及びサンプリング装置を提供すること。【解決手段】ピストンロッドの下端部付近に設けられたピストンの底面を地盤試料の上面に略当接させるピストン当接工程と、前記ピストン当接工程後、保持手段により前記ピストンと前記地盤試料との略当接状態を保持するとともに、水圧により加圧ピストンを下降させ、前記加圧ピストンに固定されたサンプリングチューブを前記地盤試料を採取する土中に挿入するサンプリングチューブ挿入工程と、前記サンプリングチューブ挿入工程で所定の位置までサンプリングチューブを挿入した後、前記地盤試料を採取する地盤試料採取工程とで構成されることを特徴とする。【選択図】 図１
GROUND SPECIMEN SAMPLING METHOD AND SAMPLING DEVICE
To provide a ground specimen sampling method and a sampling device which can prevent collected ground specimens from being disturbed even if the sampler head moves upward due to reaction force.SOLUTION: It is characterized by being composed of a piston contact process in which the bottom surface of the piston provided near the lower end of the piston rod is approximately brought into contact with the upper surface of the ground sample, a sampling tube insertion process in which the pressure piston is lowered by water pressure and a sampling tube fixed to the pressure piston is inserted into the soil for collecting the ground sample after the piston contact step, while the holding means keeps the piston and the ground sample in an approximately contacted state, and a ground sampling process for collecting the ground sample after inserting the sampling tube to a predetermined position in the sampling tube insertion process.SELECTED DRAWING: Figure 1
【課題】 反力によってサンプラーヘッドが上方へ移動した場合であっても、採取した地盤試料の乱れ等を防止できる地盤試料のサンプリング方法及びサンプリング装置を提供すること。【解決手段】ピストンロッドの下端部付近に設けられたピストンの底面を地盤試料の上面に略当接させるピストン当接工程と、前記ピストン当接工程後、保持手段により前記ピストンと前記地盤試料との略当接状態を保持するとともに、水圧により加圧ピストンを下降させ、前記加圧ピストンに固定されたサンプリングチューブを前記地盤試料を採取する土中に挿入するサンプリングチューブ挿入工程と、前記サンプリングチューブ挿入工程で所定の位置までサンプリングチューブを挿入した後、前記地盤試料を採取する地盤試料採取工程とで構成されることを特徴とする。【選択図】 図１
GROUND SPECIMEN SAMPLING METHOD AND SAMPLING DEVICE
地盤試料のサンプリング方法及びサンプリング装置
SAKAI KAZUO (author) / YUGAWA HIRONORI (author) / OKUZAWA TAIZO (author)
2021-05-20
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
UNSOLIDIFIED SPECIMEN SAMPLING DEVICE AND UNSOLIDIFIED SPECIMEN SAMPLING METHOD
| European Patent Office | 2019
| European Patent Office | 2017
Sampling and specimen preparation
TIBKAT | 1977