GROUND PROPERTY ESTIMATION METHOD, AND GROUND PROPERTY ESTIMATION SYSTEM

Japanese Patent JP2023162125

A

To propose a ground property estimation method and a ground property estimation system that can respectively grasp a state of rock deterioration and a state of cracks easily and inexpensively.SOLUTION: A ground property estimation method includes the steps of: grasping a standard excavation volume specific energy and a standard elastic wave velocity in a ground sample; providing an excavated hole H in a ground G to be estimated using an excavating tool 2; deriving an excavated volume specific energy from an excavation energy required when providing the excavated hole H using the excavating tool 2 and an excavation volume when providing the excavation hole H; and deriving an elastic wave velocity propagating in the ground using the excavated hole H. The ground property estimation method further extracts a standard excavated volume specific energy and a standard elastic wave velocity that match or approximate the excavated volume specific energy and the elastic wave velocity, and estimates a strength and a crack state of the ground G based on a strength and a crack state of the ground sample that will result in the extracted standard excavation volume specific energy and standard elastic wave velocity.SELECTED DRAWING: Figure 2

KUBOZUKA DAISUKE
TANAKA SATOYUKI
TAKAYANAGI TAKESHI
FUJIWARA SHOMA
YAMAUCHI MASAYA

JP2023049334A

November 08, 2023

March 27, 2023

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RAILWAY TECHNICAL RES INST
OYO CORP
NITTOC CONSTRUCTION

E02D1/02; E21B25/00; E21B49/02; G01V1/00

Yoshihiro Uemura
Hiroko Negishi

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