Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND INVESTIGATION METHOD AND GROUND INVESTIGATION DEVICE
PROBLEM TO BE SOLVED: To provide a ground investigation method for making it possible to inexpensively perform excavation while extracting data having correlation with an N-value graph at the time of a boring investigation.SOLUTION: Formation of a columnar improvement pile into the ground by using an excavating and agitating device 1 includes: in excavating the ground by using a rod 2 having a drilling blade 21, measuring a hydraulic oil pressure value of a hydraulic motor 3 by using a hydraulic sensor 32 every one minute while measuring the depth of excavation by the rod 2 by using a depth indicator 25; and, every timing measured by the depth indicator 25 at which excavation by the rod 2 gains one meter, extracting the sum of hydraulic oil pressure values to create a graph of relation between the depth and the sum of hydraulic oil pressure values before associating the graph with an N-value graph at the time of a boring investigation.SELECTED DRAWING: Figure 6
【課題】低コストでボーリング調査時のＮ値のグラフと相関関係を持ったデータを抽出しながら掘削を行えるようにした地盤調査方法を提供する。【解決手段】掘削攪拌装置１を用いて地面に柱状改良杭を形成するに際して、掘削翼２１を有するロッド２で地面を掘削する際に、油圧モータ３の油圧値を１分毎に油圧センサー３２で計測するとともに、深度計２５でロッド２が掘削していく深さを計測する。そして、深度計２５によってロッド２が１メートル毎に掘削されるタイミングで、油圧値の和を抽出し、深度と油圧値の和のグラフを生成してボーリング調査時におけるＮ値のグラフと対応させる。【選択図】図６
GROUND INVESTIGATION METHOD AND GROUND INVESTIGATION DEVICE
PROBLEM TO BE SOLVED: To provide a ground investigation method for making it possible to inexpensively perform excavation while extracting data having correlation with an N-value graph at the time of a boring investigation.SOLUTION: Formation of a columnar improvement pile into the ground by using an excavating and agitating device 1 includes: in excavating the ground by using a rod 2 having a drilling blade 21, measuring a hydraulic oil pressure value of a hydraulic motor 3 by using a hydraulic sensor 32 every one minute while measuring the depth of excavation by the rod 2 by using a depth indicator 25; and, every timing measured by the depth indicator 25 at which excavation by the rod 2 gains one meter, extracting the sum of hydraulic oil pressure values to create a graph of relation between the depth and the sum of hydraulic oil pressure values before associating the graph with an N-value graph at the time of a boring investigation.SELECTED DRAWING: Figure 6
【課題】低コストでボーリング調査時のＮ値のグラフと相関関係を持ったデータを抽出しながら掘削を行えるようにした地盤調査方法を提供する。【解決手段】掘削攪拌装置１を用いて地面に柱状改良杭を形成するに際して、掘削翼２１を有するロッド２で地面を掘削する際に、油圧モータ３の油圧値を１分毎に油圧センサー３２で計測するとともに、深度計２５でロッド２が掘削していく深さを計測する。そして、深度計２５によってロッド２が１メートル毎に掘削されるタイミングで、油圧値の和を抽出し、深度と油圧値の和のグラフを生成してボーリング調査時におけるＮ値のグラフと対応させる。【選択図】図６
GROUND INVESTIGATION METHOD AND GROUND INVESTIGATION DEVICE
地盤調査方法および地盤調査装置
YAMASHITA TATSUNORI (Autor:in)
29.06.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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