Title:
根固め部の強度推定方法
Document Type and Number:
Japanese Patent JP6894244
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for stably estimating the strength of a foot protection part regardless of the amount of ground material.SOLUTION: A method for estimating the strength of a foot protection part comprises a first step of collecting constituents of a layer 12 from the layer 12 where a foot protection part 32 of the ground is formed as a first sample, a second step of producing and solidifying a plurality of types of cement milk containing the first sample as an aggregate, and determining a relational expression between the cement water ratio of the cement milk containing the first sample as an aggregate and the compression ratio thereof from the cement water ratio of the cement milk and the compressive strength after solidification, a third step of injecting the cement milk 21 into a bottom of an excavated pile hole 1 and collecting the injected cement milk 21 as a second sample, a fourth step of determining the cement water ratio of the second sample, and a fifth step of estimating the compressive strength of the foot protection part 32 from the cement water ratio of the second sample and the relational expression calculated in the second step.SELECTED DRAWING: Figure 3
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Inventors:
Yoda Yuya
Application Number:
JP2017012221A
Publication Date:
June 30, 2021
Filing Date:
January 26, 2017
Export Citation:
Assignee:
Shimizu Construction Co., Ltd.
International Classes:
E02D5/30; E02D1/04
Domestic Patent References:
| JP2015059325A | ||||
| JP4244939A | ||||
| JP2643721B2 | ||||
| JP10293058A | ||||
| JP2010222799A | ||||
| JP2001289766A |
Foreign References:
| US20050103119 |
Attorney, Agent or Firm:
Sakai International Patent Office