Title:
TEST DEVICE AND TEST METHOD FOR CONFIRMING SOIL IMPROVEMENT EFFECT
Document Type and Number:
Japanese Patent JP2023134012
Kind Code:
A
Abstract:
To improve measurement efficiency and measurement accuracy.SOLUTION: A test device 1 for confirming a soil improvement effect comprises a measurement probe 3 penetrating a ground at the tip of a penetration rod 2. The measurement probe 3 is provided with a tip cone 4 used for a dynamic cone penetration test, at a tip. An electrode portion 5 comprising an electrode 6 used for electric logging is provided on an upper part of the tip cone 4. At a circumferential position opposite to a circumferential position where the electrode 6 is provided, an eccentric flange portion 16 is provided which projects radially outward from an outer diameter of the electrode portion 5 and does not project from an outer diameter of the tip cone 4. After the dynamic cone penetration test, when performing electrical logging while pulling out the measurement probe 3, the eccentric flange portion 16 comes into contact with a hole wall of a penetration hole, and sediment accumulates on an upper part of the eccentric flange portion 16, and thus the electrode 6 is pressed against the hole wall.SELECTED DRAWING: Figure 3
Inventors:
TONE MAKOTO
SHIMOZAKA KENJI
MURATA YOSHINOBU
ONO YASUTOSHI
KATO TOSHIHIKO
SHIMOZAKA KENJI
MURATA YOSHINOBU
ONO YASUTOSHI
KATO TOSHIHIKO
Application Number:
JP2022039326A
Publication Date:
September 27, 2023
Filing Date:
March 14, 2022
Export Citation:
Assignee:
TODA CONSTRUCTION
NPO JIBAN BOSAI NETWORK
TAIYO KISO KOGYO KK
NPO JIBAN BOSAI NETWORK
TAIYO KISO KOGYO KK
International Classes:
E02D1/08; E02D3/12
Attorney, Agent or Firm:
Hisashi Izumi