Title:
GROUND EVALUATION METHOD
Document Type and Number:
Japanese Patent JP2014218824
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide such a ground evaluation method that an N value of ground can be accurately estimated even when a simple drilling machine is used.SOLUTION: In a ground evaluation method, a measured value obtained during drilling is used. The ground evaluation method includes a step (step S3) of measuring a penetration speed and a feeding force acting on a rod penetrating ground by a vibro-drill 1, and a step (step S4) of estimating an N value of the ground by an estimated equation in which measured values of the feeding force and the penetration speed, measured in the step, are used as variables.
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Inventors:
MATSUI HIDETAKE
TAKAHATA AKIRA
ISHII HIROYASU
TAKAHATA AKIRA
ISHII HIROYASU
Application Number:
JP2013098279A
Publication Date:
November 20, 2014
Filing Date:
May 08, 2013
Export Citation:
Assignee:
TAISEI CORP
International Classes:
E02D1/00
Domestic Patent References:
| JP2002004259A | 2002-01-09 | |||
| JP2000282774A | 2000-10-10 | |||
| JPH03194017A | 1991-08-23 | |||
| JPS63151709A | 1988-06-24 |
Other References:
JPN6016024220; 地盤工学会地盤調査法改訂編集委員会: 地盤調査の方法と解説 第１刷, 20040601, Ｐ．２９９ 右欄第１〜８行, 社団法人地盤工学会
JPN6016024222; トップベース工法 設計施工マニュアル , 199003, 表紙、Ｐ．２、１８（換算式（ｂ））, 財団法人土木研究センター 外
JPN6016024222; トップベース工法 設計施工マニュアル , 199003, 表紙、Ｐ．２、１８（換算式（ｂ））, 財団法人土木研究センター 外
Attorney, Agent or Firm:
Tamio Nishiwaki
Nishiwaki History of 怜
Nishiwaki History of 怜
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