Title:
土質測定方法及び土質測定装置
Document Type and Number:
Japanese Patent JP6762257
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a soil measurement method and a soil measurement apparatus capable of reducing the influence on the measurement of the dry density of soil by the proportion of moisture contained in soil while ensuring immediacy.SOLUTION: A closed space 24 is formed on the soil E by a closed space forming step. A volume change is given to the closed space 24 formed in the closed space forming step by a volume change applying step. In a pressure fluctuation measuring step, the pressure fluctuation of the closed space 24 given the volume change in the volume change applying step by a dry density deriving step is measured. The dry density of the soil E is derived based on the pressure fluctuation of the closed space 24 measured in the pressure fluctuation measuring step by the drying density deriving step. The influence of the proportion of moisture contained in the soil E to the dry density of the soil E derived in the drying density deriving step is extremely small. This makes it possible to reduce the influence on the measurement of the dry density of the soil E by the proportion of moisture contained in the soil E while ensuring immediacy.SELECTED DRAWING: Figure 3
Inventors:
Ichizo Kobayashi
Dai Mikami
Kazunari Sato
Keisuke Tanaka
Togashi Noboru
Kosei Yoshida
Michitaka Okamoto
Dai Mikami
Kazunari Sato
Keisuke Tanaka
Togashi Noboru
Kosei Yoshida
Michitaka Okamoto
Application Number:
JP2017069903A
Publication Date:
September 30, 2020
Filing Date:
March 31, 2017
Export Citation:
Assignee:
Kashima Construction Co., Ltd.
International Classes:
E02D1/00; E02D3/02; G01N33/24
Domestic Patent References:
| JP2004257192A | ||||
| JP5152613A | ||||
| JP9184128A | ||||
| JP2001165915A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Hiroshi Kondo
Ohno Arata
Yoshiki Kuroki
Hiroshi Kondo
Ohno Arata