Title:
GROUND STRENGTH MEASUREMENT METHOD
Document Type and Number:
Japanese Patent JP2017172132
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a ground strength measurement method for measuring ground strength at an actual excavated hole part mainly at a time of pile installation and objectively confirming that the excavated hole has reached the ground.SOLUTION: A ground strength measurement method is for measuring strength of a ground A reached by an excavated hole B when the excavated hole is formed by excavating a ground by excavation means. A measurement rod insertion hole 18 is formed on the excavation means for having a rotary support shaft 12 thereof pierce through the rod insertion hole, and when the excavated hole B has reached a desired depth, a bottom end 23 of a measurement rod 20 inserted into the measurement rod insertion hole 18 is made to reach the ground A to be measured, and ground strength of the ground A to be measured is measured by ground strength measurement means 21 that uses the measurement rod 20.SELECTED DRAWING: Figure 1
Inventors:
TAGUCHI TAKUMI
SHIBUYA MASAYOSHI
KAGAWA YUKIHITO
FUKANO JUNICHI
SHIBUYA MASAYOSHI
KAGAWA YUKIHITO
FUKANO JUNICHI
Application Number:
JP2016056627A
Publication Date:
September 28, 2017
Filing Date:
March 22, 2016
Export Citation:
Assignee:
NIPPON HUME CORP
International Classes:
E21B49/02; E02D1/04; G01N3/40
Domestic Patent References:
| JPS61151307A | 1986-07-10 | |||
| JPS4826609B1 | 1973-08-13 | |||
| JPS492801U | 1974-01-11 | |||
| JP2000054778A | 2000-02-22 | |||
| JPH08302659A | 1996-11-19 | |||
| JPS54181704U | 1979-12-22 | |||
| JP2001003348A | 2001-01-09 | |||
| JP2001288732A | 2001-10-19 |
Foreign References:
| US5673762A | 1997-10-07 | |||
| US5777242A | 1998-07-07 |
Attorney, Agent or Firm:
Rita Ishii
Masao Tanaka
Masao Tanaka