Title:
EVALUATION METHOD FOR GROUND OR BEDROCK
Document Type and Number:
Japanese Patent JP2023180828
Kind Code:
A
Abstract:
To provide a method for evaluating adhesive force and a shear resistance angle of bedrock without using a special device, even in ground or bedrock which is difficult to collect a sample having a size suitable for a compression test.SOLUTION: An evaluation method for ground or bedrock includes the steps of: drilling ground or bedrock (bedrock G) containing ground water, performing an in-hole loading test, and deriving a placement pressure and a yield pressure of the ground or the bedrock; performing the in-hole loading test in a state in which the placement pressure to a probe 20 is changed, and deriving the placement pressure and the yield pressure of the ground or the bedrock; drawing a plurality of stress circles derived from the placement pressure and the yield pressure, in a coordinate system with a vertical stress generated in the ground or the bedrock as a horizontal axis and a shear stress as a vertical axis; drawing a tangent common to the plurality of stress circles; and deriving the adhesive force of the ground or the bedrock from an intersection between the tangent and the vertical axis, and deriving a shear resistance angle of the ground or the bedrock from inclination of the tangent.SELECTED DRAWING: Figure 1
Inventors:
KOMURA YUICHI
TAYA YUJI
HAMADA JUNJI
TAYA YUJI
HAMADA JUNJI
Application Number:
JP2022094441A
Publication Date:
December 21, 2023
Filing Date:
June 10, 2022
Export Citation:
Assignee:
TAKENAKA KOMUTEN CO
International Classes:
E02D1/02
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office