公开(公告)号：US20230041474A1

公开(公告)日：2023-02-09

申请号：US17912099

申请日：2020-03-18

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Daiki KOBAYASHI ,  Kazuaki WATANABE ,  Masafumi NAKAGAWA ,  Atsushi ARATAKE

IPC: G01L1/22 ,  G01L5/10

Abstract: A strain measuring device (100) is a strain measuring device (100) for measuring strain on an FEP (10), and includes a viscous body (101) that has a lower rigidity than the FEP (10) and covers an uneven surface of the FEP (10), and a strain gauge (102) that is attached to a portion of a surface of the viscous body (101).

公开(公告)号：US20230023924A1

公开(公告)日：2023-01-26

申请号：US17791146

申请日：2020-01-08

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Daiki KOBAYASHI ,  Atsushi ARATAKE ,  Kazuaki WATANABE ,  Masafumi NAKAGAWA

IPC: E02D1/00 ,  G01N3/02

Abstract: A measurement system for measuring a subgrade reaction coefficient of a plurality of layers having different depths in a ground is provided. The system includes an object provided on a ground surface of the ground. An earth pressure gauge measures an earth pressure of the plurality of layers with respect to a load of the object. A settlement gauge measures a settlement amount of the plurality of layers with respect to the load of the object. The disclosed technology calculates the subgrade reaction coefficient of the plurality of layers on the basis of the earth pressure and the settlement amount.