Title:
地盤固さ推定システム及び地盤固さ推定方法
Document Type and Number:
Japanese Patent JP7400383
Kind Code:
B2
Abstract:
To provide a ground hardness estimation system and a ground hardness estimation method that can efficiently evaluate the hardness of the ground.SOLUTION: A control unit 31 of a ground hardness estimation system 30 acquires values measured by a drilling depth measuring instrument 21, a flow rate measuring instrument 22, a current measuring instrument 23, and a vibration measuring instrument 24, and acquires a plurality of measured values from these values. The control unit 31 calculates a multiple regression equation by performing multivariate analysis using the acquired measured values and the hardness index value as explanatory variables and objective variables, and records them in a multiple regression equation storage unit 34. When the measured values for the excavation conditions of a hole to be evaluated are acquired, the control unit 31 estimates the hardness index value in the ground where the hole to be evaluated is excavated by using these measured values and the multiple regression equation.SELECTED DRAWING: Figure 2
Inventors:
Yoshinori Hagiwara
Application Number:
JP2019208868A
Publication Date:
December 19, 2023
Filing Date:
November 19, 2019
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
E02D1/00
Domestic Patent References:
| JP2019157346A | ||||
| JP2013124443A | ||||
| JP2006009319A | ||||
| JP2006348515A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda